/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/psyco/psyco_abp_1-3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 18:08:56,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 18:08:56,591 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 18:08:56,595 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 18:08:56,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 18:08:56,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 18:08:56,615 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 18:08:56,615 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 18:08:56,616 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 18:08:56,618 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 18:08:56,618 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 18:08:56,619 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 18:08:56,619 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 18:08:56,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 18:08:56,620 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 18:08:56,620 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 18:08:56,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 18:08:56,621 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 18:08:56,621 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 18:08:56,621 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 18:08:56,621 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 18:08:56,621 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 18:08:56,622 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 18:08:56,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 18:08:56,622 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 18:08:56,622 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 18:08:56,622 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 18:08:56,622 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 18:08:56,623 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 18:08:56,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 18:08:56,624 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 18:08:56,624 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 18:08:56,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 18:08:56,624 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 18:08:56,624 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 18:08:56,624 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 18:08:56,624 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 18:08:56,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 18:08:56,624 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 18:08:56,625 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 18:08:56,625 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 18:08:56,625 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 18:08:56,625 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 18:08:56,625 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 18:08:56,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 18:08:56,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 18:08:56,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 18:08:56,837 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 18:08:56,837 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 18:08:56,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_abp_1-3.c [2023-12-20 18:08:57,852 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 18:08:58,024 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 18:08:58,025 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_abp_1-3.c [2023-12-20 18:08:58,037 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f109f490/6ea2b5ca00374f25babe21abae136124/FLAGf89dafa39 [2023-12-20 18:08:58,046 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f109f490/6ea2b5ca00374f25babe21abae136124 [2023-12-20 18:08:58,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 18:08:58,049 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 18:08:58,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 18:08:58,050 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 18:08:58,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 18:08:58,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 06:08:58" (1/1) ... [2023-12-20 18:08:58,054 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b0b0221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 06:08:58, skipping insertion in model container [2023-12-20 18:08:58,055 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 06:08:58" (1/1) ... [2023-12-20 18:08:58,091 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 18:08:58,261 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_abp_1-3.c[24720,24733] [2023-12-20 18:08:58,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 18:08:58,277 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 18:08:58,348 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_abp_1-3.c[24720,24733] [2023-12-20 18:08:58,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 18:08:58,363 INFO L206 MainTranslator]: Completed translation [2023-12-20 18:08:58,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 06:08:58 WrapperNode [2023-12-20 18:08:58,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 18:08:58,365 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 18:08:58,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 18:08:58,365 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 18:08:58,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 06:08:58" (1/1) ... [2023-12-20 18:08:58,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 06:08:58" (1/1) ... [2023-12-20 18:08:58,416 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 455 [2023-12-20 18:08:58,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 18:08:58,417 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 18:08:58,417 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 18:08:58,417 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 18:08:58,434 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 06:08:58" (1/1) ... [2023-12-20 18:08:58,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 06:08:58" (1/1) ... [2023-12-20 18:08:58,438 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 06:08:58" (1/1) ... [2023-12-20 18:08:58,449 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]. [2023-12-20 18:08:58,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 06:08:58" (1/1) ... [2023-12-20 18:08:58,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 06:08:58" (1/1) ... [2023-12-20 18:08:58,459 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 06:08:58" (1/1) ... [2023-12-20 18:08:58,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 06:08:58" (1/1) ... [2023-12-20 18:08:58,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 06:08:58" (1/1) ... [2023-12-20 18:08:58,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 06:08:58" (1/1) ... [2023-12-20 18:08:58,473 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 18:08:58,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 18:08:58,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 18:08:58,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 18:08:58,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 06:08:58" (1/1) ... [2023-12-20 18:08:58,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 18:08:58,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 18:08:58,507 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) [2023-12-20 18:08:58,546 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 [2023-12-20 18:08:58,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 18:08:58,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 18:08:58,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 18:08:58,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 18:08:58,632 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 18:08:58,633 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 18:08:59,083 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 18:08:59,104 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 18:08:59,105 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-20 18:08:59,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 06:08:59 BoogieIcfgContainer [2023-12-20 18:08:59,105 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 18:08:59,107 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 18:08:59,107 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 18:08:59,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 18:08:59,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 06:08:58" (1/3) ... [2023-12-20 18:08:59,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513f1cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 06:08:59, skipping insertion in model container [2023-12-20 18:08:59,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 06:08:58" (2/3) ... [2023-12-20 18:08:59,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513f1cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 06:08:59, skipping insertion in model container [2023-12-20 18:08:59,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 06:08:59" (3/3) ... [2023-12-20 18:08:59,111 INFO L112 eAbstractionObserver]: Analyzing ICFG psyco_abp_1-3.c [2023-12-20 18:08:59,123 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 18:08:59,124 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 18:08:59,156 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 18:08:59,162 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;@d6d6695, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 18:08:59,162 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 18:08:59,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 105 states have (on average 1.9714285714285715) internal successors, (207), 106 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:08:59,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-20 18:08:59,171 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 18:08:59,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 18:08:59,172 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 18:08:59,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 18:08:59,175 INFO L85 PathProgramCache]: Analyzing trace with hash 507715632, now seen corresponding path program 1 times [2023-12-20 18:08:59,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 18:08:59,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032612614] [2023-12-20 18:08:59,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 18:08:59,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 18:08:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 18:08:59,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 18:08:59,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 18:08:59,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032612614] [2023-12-20 18:08:59,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032612614] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 18:08:59,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 18:08:59,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 18:08:59,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411020526] [2023-12-20 18:08:59,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 18:08:59,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 18:08:59,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 18:08:59,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 18:08:59,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 18:08:59,352 INFO L87 Difference]: Start difference. First operand has 107 states, 105 states have (on average 1.9714285714285715) internal successors, (207), 106 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:08:59,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 18:08:59,390 INFO L93 Difference]: Finished difference Result 213 states and 413 transitions. [2023-12-20 18:08:59,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 18:08:59,393 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-20 18:08:59,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 18:08:59,400 INFO L225 Difference]: With dead ends: 213 [2023-12-20 18:08:59,400 INFO L226 Difference]: Without dead ends: 99 [2023-12-20 18:08:59,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 18:08:59,404 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 18:08:59,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 195 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 18:08:59,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-20 18:08:59,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-12-20 18:08:59,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.6734693877551021) internal successors, (164), 98 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:08:59,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 164 transitions. [2023-12-20 18:08:59,429 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 164 transitions. Word has length 8 [2023-12-20 18:08:59,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 18:08:59,430 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 164 transitions. [2023-12-20 18:08:59,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:08:59,430 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 164 transitions. [2023-12-20 18:08:59,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-20 18:08:59,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 18:08:59,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 18:08:59,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 18:08:59,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 18:08:59,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 18:08:59,432 INFO L85 PathProgramCache]: Analyzing trace with hash -908197106, now seen corresponding path program 1 times [2023-12-20 18:08:59,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 18:08:59,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829689471] [2023-12-20 18:08:59,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 18:08:59,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 18:08:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 18:08:59,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 18:08:59,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 18:08:59,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829689471] [2023-12-20 18:08:59,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829689471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 18:08:59,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 18:08:59,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 18:08:59,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537432732] [2023-12-20 18:08:59,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 18:08:59,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 18:08:59,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 18:08:59,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 18:08:59,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 18:08:59,485 INFO L87 Difference]: Start difference. First operand 99 states and 164 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:08:59,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 18:08:59,531 INFO L93 Difference]: Finished difference Result 200 states and 331 transitions. [2023-12-20 18:08:59,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 18:08:59,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-12-20 18:08:59,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 18:08:59,532 INFO L225 Difference]: With dead ends: 200 [2023-12-20 18:08:59,532 INFO L226 Difference]: Without dead ends: 102 [2023-12-20 18:08:59,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 18:08:59,534 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 4 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 18:08:59,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 305 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 18:08:59,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-20 18:08:59,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-12-20 18:08:59,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.6534653465346534) internal successors, (167), 101 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:08:59,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 167 transitions. [2023-12-20 18:08:59,540 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 167 transitions. Word has length 9 [2023-12-20 18:08:59,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 18:08:59,541 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 167 transitions. [2023-12-20 18:08:59,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:08:59,541 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 167 transitions. [2023-12-20 18:08:59,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-20 18:08:59,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 18:08:59,542 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 18:08:59,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 18:08:59,542 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 18:08:59,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 18:08:59,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1273080147, now seen corresponding path program 1 times [2023-12-20 18:08:59,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 18:08:59,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417204590] [2023-12-20 18:08:59,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 18:08:59,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 18:08:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 18:08:59,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 18:08:59,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 18:08:59,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417204590] [2023-12-20 18:08:59,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417204590] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 18:08:59,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 18:08:59,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 18:08:59,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189867774] [2023-12-20 18:08:59,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 18:08:59,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 18:08:59,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 18:08:59,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 18:08:59,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-20 18:08:59,982 INFO L87 Difference]: Start difference. First operand 102 states and 167 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:00,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 18:09:00,245 INFO L93 Difference]: Finished difference Result 209 states and 336 transitions. [2023-12-20 18:09:00,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 18:09:00,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-12-20 18:09:00,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 18:09:00,249 INFO L225 Difference]: With dead ends: 209 [2023-12-20 18:09:00,249 INFO L226 Difference]: Without dead ends: 190 [2023-12-20 18:09:00,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-20 18:09:00,250 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 157 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 18:09:00,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 438 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 18:09:00,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-12-20 18:09:00,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 171. [2023-12-20 18:09:00,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.6470588235294117) internal successors, (280), 170 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:00,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 280 transitions. [2023-12-20 18:09:00,264 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 280 transitions. Word has length 14 [2023-12-20 18:09:00,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 18:09:00,266 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 280 transitions. [2023-12-20 18:09:00,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:00,266 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 280 transitions. [2023-12-20 18:09:00,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-20 18:09:00,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 18:09:00,267 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 18:09:00,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 18:09:00,267 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 18:09:00,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 18:09:00,268 INFO L85 PathProgramCache]: Analyzing trace with hash -732941141, now seen corresponding path program 1 times [2023-12-20 18:09:00,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 18:09:00,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836538958] [2023-12-20 18:09:00,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 18:09:00,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 18:09:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 18:09:00,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 18:09:00,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 18:09:00,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836538958] [2023-12-20 18:09:00,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836538958] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 18:09:00,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 18:09:00,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 18:09:00,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240465387] [2023-12-20 18:09:00,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 18:09:00,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 18:09:00,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 18:09:00,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 18:09:00,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 18:09:00,301 INFO L87 Difference]: Start difference. First operand 171 states and 280 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:00,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 18:09:00,322 INFO L93 Difference]: Finished difference Result 292 states and 476 transitions. [2023-12-20 18:09:00,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 18:09:00,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-12-20 18:09:00,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 18:09:00,324 INFO L225 Difference]: With dead ends: 292 [2023-12-20 18:09:00,324 INFO L226 Difference]: Without dead ends: 123 [2023-12-20 18:09:00,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 18:09:00,334 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 30 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 18:09:00,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 280 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 18:09:00,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-12-20 18:09:00,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2023-12-20 18:09:00,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.6083333333333334) internal successors, (193), 120 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:00,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 193 transitions. [2023-12-20 18:09:00,346 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 193 transitions. Word has length 15 [2023-12-20 18:09:00,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 18:09:00,346 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 193 transitions. [2023-12-20 18:09:00,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:00,346 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 193 transitions. [2023-12-20 18:09:00,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-20 18:09:00,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 18:09:00,347 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 18:09:00,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 18:09:00,347 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 18:09:00,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 18:09:00,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1137734602, now seen corresponding path program 1 times [2023-12-20 18:09:00,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 18:09:00,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961012151] [2023-12-20 18:09:00,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 18:09:00,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 18:09:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 18:09:00,385 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-20 18:09:00,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 18:09:00,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961012151] [2023-12-20 18:09:00,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961012151] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 18:09:00,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 18:09:00,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 18:09:00,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701511740] [2023-12-20 18:09:00,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 18:09:00,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 18:09:00,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 18:09:00,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 18:09:00,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 18:09:00,387 INFO L87 Difference]: Start difference. First operand 121 states and 193 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:00,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 18:09:00,415 INFO L93 Difference]: Finished difference Result 247 states and 394 transitions. [2023-12-20 18:09:00,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 18:09:00,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-12-20 18:09:00,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 18:09:00,417 INFO L225 Difference]: With dead ends: 247 [2023-12-20 18:09:00,417 INFO L226 Difference]: Without dead ends: 128 [2023-12-20 18:09:00,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 18:09:00,417 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 32 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 18:09:00,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 279 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 18:09:00,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-12-20 18:09:00,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2023-12-20 18:09:00,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.584) internal successors, (198), 125 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:00,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 198 transitions. [2023-12-20 18:09:00,433 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 198 transitions. Word has length 20 [2023-12-20 18:09:00,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 18:09:00,434 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 198 transitions. [2023-12-20 18:09:00,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:00,434 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 198 transitions. [2023-12-20 18:09:00,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-20 18:09:00,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 18:09:00,437 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 18:09:00,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 18:09:00,437 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 18:09:00,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 18:09:00,438 INFO L85 PathProgramCache]: Analyzing trace with hash -330273353, now seen corresponding path program 1 times [2023-12-20 18:09:00,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 18:09:00,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386254252] [2023-12-20 18:09:00,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 18:09:00,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 18:09:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 18:09:00,624 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 18:09:00,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 18:09:00,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386254252] [2023-12-20 18:09:00,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386254252] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 18:09:00,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039677217] [2023-12-20 18:09:00,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 18:09:00,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 18:09:00,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 18:09:00,630 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) [2023-12-20 18:09:00,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 18:09:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 18:09:00,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-20 18:09:00,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 18:09:00,758 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 18:09:00,759 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 18:09:00,808 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 18:09:00,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039677217] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 18:09:00,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 18:09:00,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2023-12-20 18:09:00,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643464234] [2023-12-20 18:09:00,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 18:09:00,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 18:09:00,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 18:09:00,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 18:09:00,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-20 18:09:00,813 INFO L87 Difference]: Start difference. First operand 126 states and 198 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:01,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 18:09:01,251 INFO L93 Difference]: Finished difference Result 468 states and 733 transitions. [2023-12-20 18:09:01,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 18:09:01,254 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-12-20 18:09:01,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 18:09:01,255 INFO L225 Difference]: With dead ends: 468 [2023-12-20 18:09:01,255 INFO L226 Difference]: Without dead ends: 416 [2023-12-20 18:09:01,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-12-20 18:09:01,256 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 1180 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 18:09:01,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 1420 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 18:09:01,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2023-12-20 18:09:01,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 347. [2023-12-20 18:09:01,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 346 states have (on average 1.5895953757225434) internal successors, (550), 346 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:01,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 550 transitions. [2023-12-20 18:09:01,270 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 550 transitions. Word has length 22 [2023-12-20 18:09:01,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 18:09:01,270 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 550 transitions. [2023-12-20 18:09:01,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:01,271 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 550 transitions. [2023-12-20 18:09:01,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-20 18:09:01,271 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 18:09:01,271 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 18:09:01,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 18:09:01,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-20 18:09:01,478 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 18:09:01,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 18:09:01,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1972300679, now seen corresponding path program 1 times [2023-12-20 18:09:01,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 18:09:01,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530930651] [2023-12-20 18:09:01,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 18:09:01,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 18:09:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 18:09:01,699 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 18:09:01,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 18:09:01,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530930651] [2023-12-20 18:09:01,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530930651] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 18:09:01,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775375068] [2023-12-20 18:09:01,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 18:09:01,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 18:09:01,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 18:09:01,713 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) [2023-12-20 18:09:01,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 18:09:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 18:09:01,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-20 18:09:01,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 18:09:01,858 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 18:09:01,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 18:09:01,954 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-20 18:09:01,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775375068] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-20 18:09:01,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-20 18:09:01,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 8 [2023-12-20 18:09:01,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088757719] [2023-12-20 18:09:01,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 18:09:01,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 18:09:01,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 18:09:01,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 18:09:01,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-20 18:09:01,955 INFO L87 Difference]: Start difference. First operand 347 states and 550 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:01,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 18:09:01,995 INFO L93 Difference]: Finished difference Result 358 states and 560 transitions. [2023-12-20 18:09:01,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 18:09:01,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-12-20 18:09:01,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 18:09:01,996 INFO L225 Difference]: With dead ends: 358 [2023-12-20 18:09:01,997 INFO L226 Difference]: Without dead ends: 351 [2023-12-20 18:09:01,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-20 18:09:01,997 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 140 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 18:09:01,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 136 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 18:09:01,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-12-20 18:09:02,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 342. [2023-12-20 18:09:02,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 341 states have (on average 1.5689149560117301) internal successors, (535), 341 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:02,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 535 transitions. [2023-12-20 18:09:02,004 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 535 transitions. Word has length 26 [2023-12-20 18:09:02,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 18:09:02,004 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 535 transitions. [2023-12-20 18:09:02,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:02,004 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 535 transitions. [2023-12-20 18:09:02,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-20 18:09:02,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 18:09:02,006 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 18:09:02,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 18:09:02,211 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,SelfDestructingSolverStorable6 [2023-12-20 18:09:02,212 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 18:09:02,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 18:09:02,213 INFO L85 PathProgramCache]: Analyzing trace with hash 327693256, now seen corresponding path program 1 times [2023-12-20 18:09:02,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 18:09:02,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981030510] [2023-12-20 18:09:02,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 18:09:02,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 18:09:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 18:09:02,248 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-20 18:09:02,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 18:09:02,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981030510] [2023-12-20 18:09:02,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981030510] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 18:09:02,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 18:09:02,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 18:09:02,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11012357] [2023-12-20 18:09:02,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 18:09:02,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 18:09:02,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 18:09:02,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 18:09:02,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 18:09:02,250 INFO L87 Difference]: Start difference. First operand 342 states and 535 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:02,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 18:09:02,267 INFO L93 Difference]: Finished difference Result 582 states and 906 transitions. [2023-12-20 18:09:02,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 18:09:02,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-12-20 18:09:02,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 18:09:02,268 INFO L225 Difference]: With dead ends: 582 [2023-12-20 18:09:02,268 INFO L226 Difference]: Without dead ends: 242 [2023-12-20 18:09:02,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 18:09:02,269 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 61 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 18:09:02,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 181 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 18:09:02,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-12-20 18:09:02,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 240. [2023-12-20 18:09:02,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 239 states have (on average 1.506276150627615) internal successors, (360), 239 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:02,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 360 transitions. [2023-12-20 18:09:02,274 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 360 transitions. Word has length 29 [2023-12-20 18:09:02,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 18:09:02,275 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 360 transitions. [2023-12-20 18:09:02,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:02,275 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 360 transitions. [2023-12-20 18:09:02,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-20 18:09:02,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 18:09:02,276 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 18:09:02,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 18:09:02,278 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 18:09:02,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 18:09:02,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1463278148, now seen corresponding path program 1 times [2023-12-20 18:09:02,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 18:09:02,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731560409] [2023-12-20 18:09:02,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 18:09:02,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 18:09:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 18:09:02,306 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-20 18:09:02,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 18:09:02,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731560409] [2023-12-20 18:09:02,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731560409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 18:09:02,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 18:09:02,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 18:09:02,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468112442] [2023-12-20 18:09:02,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 18:09:02,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 18:09:02,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 18:09:02,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 18:09:02,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 18:09:02,308 INFO L87 Difference]: Start difference. First operand 240 states and 360 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:02,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 18:09:02,326 INFO L93 Difference]: Finished difference Result 423 states and 631 transitions. [2023-12-20 18:09:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 18:09:02,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2023-12-20 18:09:02,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 18:09:02,327 INFO L225 Difference]: With dead ends: 423 [2023-12-20 18:09:02,327 INFO L226 Difference]: Without dead ends: 224 [2023-12-20 18:09:02,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 18:09:02,328 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 28 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 18:09:02,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 209 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 18:09:02,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-12-20 18:09:02,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2023-12-20 18:09:02,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 221 states have (on average 1.4615384615384615) internal successors, (323), 221 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:02,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 323 transitions. [2023-12-20 18:09:02,331 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 323 transitions. Word has length 36 [2023-12-20 18:09:02,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 18:09:02,331 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 323 transitions. [2023-12-20 18:09:02,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:02,331 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 323 transitions. [2023-12-20 18:09:02,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-20 18:09:02,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 18:09:02,332 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 18:09:02,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 18:09:02,332 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 18:09:02,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 18:09:02,332 INFO L85 PathProgramCache]: Analyzing trace with hash -322356712, now seen corresponding path program 1 times [2023-12-20 18:09:02,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 18:09:02,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042544354] [2023-12-20 18:09:02,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 18:09:02,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 18:09:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 18:09:02,380 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-20 18:09:02,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 18:09:02,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042544354] [2023-12-20 18:09:02,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042544354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 18:09:02,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 18:09:02,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 18:09:02,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268761521] [2023-12-20 18:09:02,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 18:09:02,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 18:09:02,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 18:09:02,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 18:09:02,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 18:09:02,382 INFO L87 Difference]: Start difference. First operand 222 states and 323 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:02,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 18:09:02,397 INFO L93 Difference]: Finished difference Result 304 states and 441 transitions. [2023-12-20 18:09:02,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 18:09:02,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2023-12-20 18:09:02,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 18:09:02,398 INFO L225 Difference]: With dead ends: 304 [2023-12-20 18:09:02,398 INFO L226 Difference]: Without dead ends: 142 [2023-12-20 18:09:02,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 18:09:02,399 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 27 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 18:09:02,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 181 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 18:09:02,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-20 18:09:02,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 140. [2023-12-20 18:09:02,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.4244604316546763) internal successors, (198), 139 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:02,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 198 transitions. [2023-12-20 18:09:02,403 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 198 transitions. Word has length 45 [2023-12-20 18:09:02,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 18:09:02,404 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 198 transitions. [2023-12-20 18:09:02,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:02,404 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 198 transitions. [2023-12-20 18:09:02,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-20 18:09:02,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 18:09:02,404 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 18:09:02,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 18:09:02,405 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 18:09:02,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 18:09:02,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1938047041, now seen corresponding path program 1 times [2023-12-20 18:09:02,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 18:09:02,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672684382] [2023-12-20 18:09:02,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 18:09:02,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 18:09:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 18:09:02,533 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-20 18:09:02,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 18:09:02,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672684382] [2023-12-20 18:09:02,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672684382] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 18:09:02,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260103608] [2023-12-20 18:09:02,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 18:09:02,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 18:09:02,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 18:09:02,535 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) [2023-12-20 18:09:02,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 18:09:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 18:09:02,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-20 18:09:02,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 18:09:02,760 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 18:09:02,760 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 18:09:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 18:09:02,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260103608] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 18:09:02,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 18:09:02,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2023-12-20 18:09:02,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728063375] [2023-12-20 18:09:02,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 18:09:02,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 18:09:02,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 18:09:02,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 18:09:02,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2023-12-20 18:09:02,941 INFO L87 Difference]: Start difference. First operand 140 states and 198 transitions. Second operand has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 14 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:03,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 18:09:03,031 INFO L93 Difference]: Finished difference Result 162 states and 230 transitions. [2023-12-20 18:09:03,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 18:09:03,032 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 14 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-12-20 18:09:03,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 18:09:03,033 INFO L225 Difference]: With dead ends: 162 [2023-12-20 18:09:03,033 INFO L226 Difference]: Without dead ends: 0 [2023-12-20 18:09:03,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-12-20 18:09:03,034 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 534 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 18:09:03,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 498 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 18:09:03,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-20 18:09:03,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-20 18:09:03,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:03,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-20 18:09:03,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2023-12-20 18:09:03,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 18:09:03,035 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-20 18:09:03,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 14 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 18:09:03,035 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-20 18:09:03,035 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-20 18:09:03,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 18:09:03,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 18:09:03,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 18:09:03,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-20 18:09:03,278 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 434) no Hoare annotation was computed. [2023-12-20 18:09:03,278 INFO L899 garLoopResultBuilder]: For program point L300(lines 300 302) no Hoare annotation was computed. [2023-12-20 18:09:03,278 INFO L899 garLoopResultBuilder]: For program point L168(lines 168 170) no Hoare annotation was computed. [2023-12-20 18:09:03,278 INFO L899 garLoopResultBuilder]: For program point L532(lines 532 534) no Hoare annotation was computed. [2023-12-20 18:09:03,278 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 402) no Hoare annotation was computed. [2023-12-20 18:09:03,278 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 270) no Hoare annotation was computed. [2023-12-20 18:09:03,278 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 502) no Hoare annotation was computed. [2023-12-20 18:09:03,279 INFO L899 garLoopResultBuilder]: For program point L368(lines 368 370) no Hoare annotation was computed. [2023-12-20 18:09:03,279 INFO L899 garLoopResultBuilder]: For program point L468(lines 468 470) no Hoare annotation was computed. [2023-12-20 18:09:03,279 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 60) no Hoare annotation was computed. [2023-12-20 18:09:03,279 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 57) no Hoare annotation was computed. [2023-12-20 18:09:03,279 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 157) no Hoare annotation was computed. [2023-12-20 18:09:03,279 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 257) no Hoare annotation was computed. [2023-12-20 18:09:03,279 INFO L899 garLoopResultBuilder]: For program point L110(lines 110 125) no Hoare annotation was computed. [2023-12-20 18:09:03,279 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 55) no Hoare annotation was computed. [2023-12-20 18:09:03,280 INFO L899 garLoopResultBuilder]: For program point L342(lines 342 357) no Hoare annotation was computed. [2023-12-20 18:09:03,280 INFO L899 garLoopResultBuilder]: For program point L210(lines 210 225) no Hoare annotation was computed. [2023-12-20 18:09:03,280 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 155) no Hoare annotation was computed. [2023-12-20 18:09:03,280 INFO L899 garLoopResultBuilder]: For program point L78(lines 78 93) no Hoare annotation was computed. [2023-12-20 18:09:03,280 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 457) no Hoare annotation was computed. [2023-12-20 18:09:03,280 INFO L899 garLoopResultBuilder]: For program point L310(lines 310 325) no Hoare annotation was computed. [2023-12-20 18:09:03,280 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 255) no Hoare annotation was computed. [2023-12-20 18:09:03,280 INFO L899 garLoopResultBuilder]: For program point L178(lines 178 193) no Hoare annotation was computed. [2023-12-20 18:09:03,281 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 123) no Hoare annotation was computed. [2023-12-20 18:09:03,281 INFO L899 garLoopResultBuilder]: For program point L542(lines 542 557) no Hoare annotation was computed. [2023-12-20 18:09:03,281 INFO L899 garLoopResultBuilder]: For program point L410(lines 410 425) no Hoare annotation was computed. [2023-12-20 18:09:03,281 INFO L899 garLoopResultBuilder]: For program point L344(lines 344 355) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 293) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 223) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 91) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 525) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L444(lines 444 455) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 393) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L312(lines 312 323) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L180(lines 180 191) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 50) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L544(lines 544 555) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L478(lines 478 493) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L544-2(lines 26 563) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L280(lines 280 291) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 150) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 568) no Hoare annotation was computed. [2023-12-20 18:09:03,282 INFO L899 garLoopResultBuilder]: For program point L512(lines 512 523) no Hoare annotation was computed. [2023-12-20 18:09:03,283 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 391) no Hoare annotation was computed. [2023-12-20 18:09:03,283 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 250) no Hoare annotation was computed. [2023-12-20 18:09:03,283 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 118) no Hoare annotation was computed. [2023-12-20 18:09:03,283 INFO L899 garLoopResultBuilder]: For program point L480(lines 480 491) no Hoare annotation was computed. [2023-12-20 18:09:03,283 INFO L899 garLoopResultBuilder]: For program point L348(lines 348 350) no Hoare annotation was computed. [2023-12-20 18:09:03,283 INFO L899 garLoopResultBuilder]: For program point L216(lines 216 218) no Hoare annotation was computed. [2023-12-20 18:09:03,283 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 86) no Hoare annotation was computed. [2023-12-20 18:09:03,283 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 450) no Hoare annotation was computed. [2023-12-20 18:09:03,283 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 318) no Hoare annotation was computed. [2023-12-20 18:09:03,283 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 186) no Hoare annotation was computed. [2023-12-20 18:09:03,283 INFO L899 garLoopResultBuilder]: For program point L548(lines 548 550) no Hoare annotation was computed. [2023-12-20 18:09:03,283 INFO L899 garLoopResultBuilder]: For program point L416(lines 416 418) no Hoare annotation was computed. [2023-12-20 18:09:03,283 INFO L899 garLoopResultBuilder]: For program point L284(lines 284 286) no Hoare annotation was computed. [2023-12-20 18:09:03,284 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 518) no Hoare annotation was computed. [2023-12-20 18:09:03,284 INFO L899 garLoopResultBuilder]: For program point L384(lines 384 386) no Hoare annotation was computed. [2023-12-20 18:09:03,284 INFO L899 garLoopResultBuilder]: For program point L484(lines 484 486) no Hoare annotation was computed. [2023-12-20 18:09:03,284 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-20 18:09:03,284 INFO L895 garLoopResultBuilder]: At program point L26-2(lines 26 563) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~this_buffer_empty~0#1| 0))) (or (and .cse0 (<= |ULTIMATE.start_main_~this_expect~0#1| (* 2 (div |ULTIMATE.start_main_~this_expect~0#1| 2))) (<= 5 |ULTIMATE.start_main_~q~0#1|)) (and (= |ULTIMATE.start_main_~this_expect~0#1| 0) .cse0 (= |ULTIMATE.start_main_~q~0#1| 0)))) [2023-12-20 18:09:03,284 INFO L899 garLoopResultBuilder]: For program point L26-3(lines 26 563) no Hoare annotation was computed. [2023-12-20 18:09:03,284 INFO L899 garLoopResultBuilder]: For program point L126(lines 126 141) no Hoare annotation was computed. [2023-12-20 18:09:03,284 INFO L899 garLoopResultBuilder]: For program point L226(lines 226 241) no Hoare annotation was computed. [2023-12-20 18:09:03,284 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 109) no Hoare annotation was computed. [2023-12-20 18:09:03,284 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 160) no Hoare annotation was computed. [2023-12-20 18:09:03,284 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 341) no Hoare annotation was computed. [2023-12-20 18:09:03,284 INFO L899 garLoopResultBuilder]: For program point L194(lines 194 209) no Hoare annotation was computed. [2023-12-20 18:09:03,284 INFO L899 garLoopResultBuilder]: For program point L161(lines 161 260) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L128(lines 128 139) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 77) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L426(lines 426 441) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L294(lines 294 309) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L261(lines 261 360) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 239) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 177) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 107) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 541) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 409) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L361(lines 361 460) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 339) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 277) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 207) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 75) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 509) no Hoare annotation was computed. [2023-12-20 18:09:03,285 INFO L899 garLoopResultBuilder]: For program point L461(lines 461 560) no Hoare annotation was computed. [2023-12-20 18:09:03,286 INFO L899 garLoopResultBuilder]: For program point L428(lines 428 439) no Hoare annotation was computed. [2023-12-20 18:09:03,286 INFO L899 garLoopResultBuilder]: For program point L362(lines 362 377) no Hoare annotation was computed. [2023-12-20 18:09:03,286 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 307) no Hoare annotation was computed. [2023-12-20 18:09:03,286 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 175) no Hoare annotation was computed. [2023-12-20 18:09:03,286 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 567) no Hoare annotation was computed. [2023-12-20 18:09:03,287 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 539) no Hoare annotation was computed. [2023-12-20 18:09:03,287 INFO L899 garLoopResultBuilder]: For program point L462(lines 462 477) no Hoare annotation was computed. [2023-12-20 18:09:03,287 INFO L899 garLoopResultBuilder]: For program point L396(lines 396 407) no Hoare annotation was computed. [2023-12-20 18:09:03,287 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 275) no Hoare annotation was computed. [2023-12-20 18:09:03,287 INFO L899 garLoopResultBuilder]: For program point L132(lines 132 134) no Hoare annotation was computed. [2023-12-20 18:09:03,287 INFO L899 garLoopResultBuilder]: For program point L496(lines 496 507) no Hoare annotation was computed. [2023-12-20 18:09:03,287 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 375) no Hoare annotation was computed. [2023-12-20 18:09:03,287 INFO L899 garLoopResultBuilder]: For program point L232(lines 232 234) no Hoare annotation was computed. [2023-12-20 18:09:03,287 INFO L899 garLoopResultBuilder]: For program point L100(lines 100 102) no Hoare annotation was computed. [2023-12-20 18:09:03,287 INFO L899 garLoopResultBuilder]: For program point main_ERROR#1(lines 16 568) no Hoare annotation was computed. [2023-12-20 18:09:03,287 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 475) no Hoare annotation was computed. [2023-12-20 18:09:03,287 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 334) no Hoare annotation was computed. [2023-12-20 18:09:03,287 INFO L899 garLoopResultBuilder]: For program point L200(lines 200 202) no Hoare annotation was computed. [2023-12-20 18:09:03,287 INFO L899 garLoopResultBuilder]: For program point L68(lines 68 70) no Hoare annotation was computed. [2023-12-20 18:09:03,290 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 18:09:03,291 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 18:09:03,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 06:09:03 BoogieIcfgContainer [2023-12-20 18:09:03,303 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 18:09:03,304 INFO L158 Benchmark]: Toolchain (without parser) took 5254.99ms. Allocated memory was 374.3MB in the beginning and 514.9MB in the end (delta: 140.5MB). Free memory was 327.9MB in the beginning and 412.4MB in the end (delta: -84.5MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. [2023-12-20 18:09:03,304 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 192.9MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 18:09:03,304 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.90ms. Allocated memory is still 374.3MB. Free memory was 327.4MB in the beginning and 307.4MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-20 18:09:03,304 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.69ms. Allocated memory is still 374.3MB. Free memory was 307.4MB in the beginning and 302.7MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-20 18:09:03,304 INFO L158 Benchmark]: Boogie Preprocessor took 56.23ms. Allocated memory is still 374.3MB. Free memory was 302.7MB in the beginning and 299.1MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-20 18:09:03,305 INFO L158 Benchmark]: RCFGBuilder took 631.20ms. Allocated memory is still 374.3MB. Free memory was 299.1MB in the beginning and 256.1MB in the end (delta: 43.0MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2023-12-20 18:09:03,305 INFO L158 Benchmark]: TraceAbstraction took 4196.82ms. Allocated memory was 374.3MB in the beginning and 514.9MB in the end (delta: 140.5MB). Free memory was 255.5MB in the beginning and 412.4MB in the end (delta: -156.8MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 18:09:03,307 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 192.9MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 314.90ms. Allocated memory is still 374.3MB. Free memory was 327.4MB in the beginning and 307.4MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.69ms. Allocated memory is still 374.3MB. Free memory was 307.4MB in the beginning and 302.7MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 56.23ms. Allocated memory is still 374.3MB. Free memory was 302.7MB in the beginning and 299.1MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 631.20ms. Allocated memory is still 374.3MB. Free memory was 299.1MB in the beginning and 256.1MB in the end (delta: 43.0MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * TraceAbstraction took 4196.82ms. Allocated memory was 374.3MB in the beginning and 514.9MB in the end (delta: 140.5MB). Free memory was 255.5MB in the beginning and 412.4MB in the end (delta: -156.8MB). There was no memory consumed. 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 - PositiveResult [Line: 567]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2193 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2193 mSDsluCounter, 4122 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2391 mSDsCounter, 206 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 621 IncrementalHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 206 mSolverCounterUnsat, 1731 mSDtfsCounter, 621 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 244 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=347occurred in iteration=6, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 107 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 4 NumberOfFragments, 25 HoareAnnotationTreeSize, 1 FormulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FormulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 364 NumberOfCodeBlocks, 364 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 441 ConstructedInterpolants, 0 QuantifiedInterpolants, 2880 SizeOfPredicates, 4 NumberOfNonLiveVariables, 551 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 17 InterpolantComputations, 9 PerfectInterpolantSequences, 140/225 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: ((((this_buffer_empty == 0) && (this_expect <= (2 * (this_expect / 2)))) && (5 <= q)) || (((this_expect == 0) && (this_buffer_empty == 0)) && (q == 0))) RESULT: Ultimate proved your program to be correct! [2023-12-20 18:09:03,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...