/usr/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 -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/eca-rers2012/Problem17_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 23:19:32,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 23:19:32,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 23:19:32,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-01 23:19:32,456 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-01 23:19:32,490 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 23:19:32,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 23:19:32,491 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 23:19:32,491 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 23:19:32,492 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 23:19:32,493 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 23:19:32,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-01 23:19:32,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-01 23:19:32,493 INFO L138 SettingsManager]: * Use SBE=true [2023-04-01 23:19:32,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 23:19:32,494 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 23:19:32,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 23:19:32,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 23:19:32,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 23:19:32,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 23:19:32,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 23:19:32,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 23:19:32,495 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 23:19:32,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 23:19:32,495 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 23:19:32,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 23:19:32,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 23:19:32,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-01 23:19:32,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 23:19:32,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 23:19:32,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 23:19:32,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 23:19:32,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 23:19:32,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-01 23:19:32,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 23:19:32,497 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-01 23:19:32,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 23:19:32,497 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-01 23:19:32,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-01 23:19:32,497 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-01 23:19:32,498 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-01 23:19:32,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 23:19:32,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 23:19:32,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 23:19:32,763 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 23:19:32,763 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 23:19:32,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem17_label06.c [2023-04-01 23:19:33,892 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 23:19:34,305 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 23:19:34,305 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label06.c [2023-04-01 23:19:34,324 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93405e406/9856745b1f33485692ed18ef5b69ecbf/FLAG918fb5530 [2023-04-01 23:19:34,339 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93405e406/9856745b1f33485692ed18ef5b69ecbf [2023-04-01 23:19:34,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 23:19:34,342 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 23:19:34,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 23:19:34,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 23:19:34,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 23:19:34,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:19:34" (1/1) ... [2023-04-01 23:19:34,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c0bb6ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:19:34, skipping insertion in model container [2023-04-01 23:19:34,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:19:34" (1/1) ... [2023-04-01 23:19:34,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 23:19:34,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 23:19:34,657 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label06.c[4782,4795] [2023-04-01 23:19:35,164 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 23:19:35,177 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 23:19:35,205 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label06.c[4782,4795] [2023-04-01 23:19:35,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 23:19:35,448 INFO L208 MainTranslator]: Completed translation [2023-04-01 23:19:35,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:19:35 WrapperNode [2023-04-01 23:19:35,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 23:19:35,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 23:19:35,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 23:19:35,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 23:19:35,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:19:35" (1/1) ... [2023-04-01 23:19:35,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:19:35" (1/1) ... [2023-04-01 23:19:35,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:19:35" (1/1) ... [2023-04-01 23:19:35,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:19:35" (1/1) ... [2023-04-01 23:19:35,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:19:35" (1/1) ... [2023-04-01 23:19:35,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:19:35" (1/1) ... [2023-04-01 23:19:35,615 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:19:35" (1/1) ... [2023-04-01 23:19:35,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:19:35" (1/1) ... [2023-04-01 23:19:35,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 23:19:35,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 23:19:35,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 23:19:35,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 23:19:35,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:19:35" (1/1) ... [2023-04-01 23:19:35,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 23:19:35,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:19:35,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 23:19:35,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 23:19:35,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 23:19:35,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 23:19:35,712 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 23:19:35,712 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-01 23:19:35,712 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-01 23:19:35,712 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 23:19:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-01 23:19:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-01 23:19:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 23:19:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 23:19:35,717 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 23:19:35,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 23:19:35,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 23:19:35,717 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 23:19:35,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 23:19:35,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 23:19:35,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 23:19:35,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 23:19:35,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 23:19:35,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 23:19:35,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 23:19:35,787 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 23:19:35,789 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 23:19:38,974 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 23:19:38,992 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 23:19:38,992 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 23:19:38,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:19:38 BoogieIcfgContainer [2023-04-01 23:19:38,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 23:19:38,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 23:19:38,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 23:19:38,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 23:19:39,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 11:19:34" (1/3) ... [2023-04-01 23:19:39,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73bcfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:19:39, skipping insertion in model container [2023-04-01 23:19:39,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:19:35" (2/3) ... [2023-04-01 23:19:39,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73bcfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:19:39, skipping insertion in model container [2023-04-01 23:19:39,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:19:38" (3/3) ... [2023-04-01 23:19:39,002 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label06.c [2023-04-01 23:19:39,016 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 23:19:39,017 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 23:19:39,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 23:19:39,074 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=LoopsAndPotentialCycles, 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;@35c97f5a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-01 23:19:39,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 23:19:39,080 INFO L276 IsEmpty]: Start isEmpty. Operand has 603 states, 593 states have (on average 1.7993254637436762) internal successors, (1067), 594 states have internal predecessors, (1067), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-01 23:19:39,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-04-01 23:19:39,087 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:19:39,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 23:19:39,088 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:19:39,093 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:19:39,093 INFO L85 PathProgramCache]: Analyzing trace with hash 671651082, now seen corresponding path program 1 times [2023-04-01 23:19:39,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:19:39,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623834846] [2023-04-01 23:19:39,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:19:39,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:19:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:39,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:19:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:39,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 23:19:39,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:19:39,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623834846] [2023-04-01 23:19:39,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623834846] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 23:19:39,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 23:19:39,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 23:19:39,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372899645] [2023-04-01 23:19:39,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 23:19:39,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 23:19:39,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:19:39,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 23:19:39,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 23:19:39,599 INFO L87 Difference]: Start difference. First operand has 603 states, 593 states have (on average 1.7993254637436762) internal successors, (1067), 594 states have internal predecessors, (1067), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 23:19:43,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:19:43,581 INFO L93 Difference]: Finished difference Result 1690 states and 3086 transitions. [2023-04-01 23:19:43,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 23:19:43,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2023-04-01 23:19:43,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:19:43,601 INFO L225 Difference]: With dead ends: 1690 [2023-04-01 23:19:43,601 INFO L226 Difference]: Without dead ends: 1010 [2023-04-01 23:19:43,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-01 23:19:43,615 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 1469 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 2361 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 2742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 2361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-04-01 23:19:43,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 131 Invalid, 2742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 2361 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-04-01 23:19:43,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2023-04-01 23:19:43,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 1003. [2023-04-01 23:19:43,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 987 states have (on average 1.4994934143870313) internal successors, (1480), 989 states have internal predecessors, (1480), 6 states have call successors, (6), 6 states have call predecessors, (6), 9 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2023-04-01 23:19:43,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1499 transitions. [2023-04-01 23:19:43,700 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1499 transitions. Word has length 37 [2023-04-01 23:19:43,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:19:43,701 INFO L495 AbstractCegarLoop]: Abstraction has 1003 states and 1499 transitions. [2023-04-01 23:19:43,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 23:19:43,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1499 transitions. [2023-04-01 23:19:43,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-04-01 23:19:43,705 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:19:43,706 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 23:19:43,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 23:19:43,706 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:19:43,707 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:19:43,707 INFO L85 PathProgramCache]: Analyzing trace with hash -15735491, now seen corresponding path program 1 times [2023-04-01 23:19:43,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:19:43,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812066544] [2023-04-01 23:19:43,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:19:43,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:19:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:44,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:19:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:44,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:19:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:44,136 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 23:19:44,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:19:44,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812066544] [2023-04-01 23:19:44,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812066544] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:19:44,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220991181] [2023-04-01 23:19:44,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:19:44,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:19:44,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:19:44,145 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) [2023-04-01 23:19:44,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 23:19:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:44,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-01 23:19:44,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:19:46,632 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 23:19:46,632 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 23:19:47,236 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 23:19:47,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220991181] provided 1 perfect and 1 imperfect interpolant sequences [2023-04-01 23:19:47,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-04-01 23:19:47,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 6] total 13 [2023-04-01 23:19:47,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398321949] [2023-04-01 23:19:47,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 23:19:47,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 23:19:47,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:19:47,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 23:19:47,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-04-01 23:19:47,247 INFO L87 Difference]: Start difference. First operand 1003 states and 1499 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 23:19:51,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:19:51,695 INFO L93 Difference]: Finished difference Result 3842 states and 5813 transitions. [2023-04-01 23:19:51,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 23:19:51,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 111 [2023-04-01 23:19:51,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:19:51,709 INFO L225 Difference]: With dead ends: 3842 [2023-04-01 23:19:51,709 INFO L226 Difference]: Without dead ends: 2845 [2023-04-01 23:19:51,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 218 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-04-01 23:19:51,713 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 1995 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 1904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1995 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 4383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1904 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-01 23:19:51,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1995 Valid, 195 Invalid, 4383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1904 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-01 23:19:51,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2845 states. [2023-04-01 23:19:51,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2845 to 2807. [2023-04-01 23:19:51,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2807 states, 2764 states have (on average 1.4880607814761215) internal successors, (4113), 2772 states have internal predecessors, (4113), 14 states have call successors, (14), 14 states have call predecessors, (14), 28 states have return successors, (86), 20 states have call predecessors, (86), 13 states have call successors, (86) [2023-04-01 23:19:51,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2807 states to 2807 states and 4213 transitions. [2023-04-01 23:19:51,815 INFO L78 Accepts]: Start accepts. Automaton has 2807 states and 4213 transitions. Word has length 111 [2023-04-01 23:19:51,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:19:51,817 INFO L495 AbstractCegarLoop]: Abstraction has 2807 states and 4213 transitions. [2023-04-01 23:19:51,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 23:19:51,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2807 states and 4213 transitions. [2023-04-01 23:19:51,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-04-01 23:19:51,828 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:19:51,829 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 23:19:51,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 23:19:52,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:19:52,046 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:19:52,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:19:52,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1572224976, now seen corresponding path program 1 times [2023-04-01 23:19:52,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:19:52,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670763857] [2023-04-01 23:19:52,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:19:52,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:19:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:52,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:19:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:52,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:19:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:52,995 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 23:19:52,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:19:52,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670763857] [2023-04-01 23:19:52,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670763857] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 23:19:52,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 23:19:52,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 23:19:52,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306164097] [2023-04-01 23:19:52,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 23:19:53,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-01 23:19:53,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:19:53,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-01 23:19:53,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-01 23:19:53,003 INFO L87 Difference]: Start difference. First operand 2807 states and 4213 transitions. Second operand has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 5 states have internal predecessors, (164), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 23:19:58,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:19:58,697 INFO L93 Difference]: Finished difference Result 8392 states and 12857 transitions. [2023-04-01 23:19:58,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-01 23:19:58,698 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 5 states have internal predecessors, (164), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 170 [2023-04-01 23:19:58,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:19:58,724 INFO L225 Difference]: With dead ends: 8392 [2023-04-01 23:19:58,724 INFO L226 Difference]: Without dead ends: 5591 [2023-04-01 23:19:58,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-04-01 23:19:58,731 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 2469 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 5521 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2469 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 5836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 5521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-04-01 23:19:58,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2469 Valid, 507 Invalid, 5836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 5521 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-04-01 23:19:58,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5591 states. [2023-04-01 23:19:58,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5591 to 5529. [2023-04-01 23:19:58,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5529 states, 5431 states have (on average 1.45479653839072) internal successors, (7901), 5457 states have internal predecessors, (7901), 26 states have call successors, (26), 26 states have call predecessors, (26), 71 states have return successors, (327), 45 states have call predecessors, (327), 25 states have call successors, (327) [2023-04-01 23:19:58,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5529 states to 5529 states and 8254 transitions. [2023-04-01 23:19:58,880 INFO L78 Accepts]: Start accepts. Automaton has 5529 states and 8254 transitions. Word has length 170 [2023-04-01 23:19:58,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:19:58,881 INFO L495 AbstractCegarLoop]: Abstraction has 5529 states and 8254 transitions. [2023-04-01 23:19:58,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 5 states have internal predecessors, (164), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 23:19:58,882 INFO L276 IsEmpty]: Start isEmpty. Operand 5529 states and 8254 transitions. [2023-04-01 23:19:58,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-04-01 23:19:58,886 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:19:58,887 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 23:19:58,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 23:19:58,887 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:19:58,887 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:19:58,887 INFO L85 PathProgramCache]: Analyzing trace with hash 855968464, now seen corresponding path program 1 times [2023-04-01 23:19:58,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:19:58,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243092740] [2023-04-01 23:19:58,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:19:58,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:19:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:59,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:19:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:59,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:19:59,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:59,363 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 23:19:59,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:19:59,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243092740] [2023-04-01 23:19:59,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243092740] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 23:19:59,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 23:19:59,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 23:19:59,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033298261] [2023-04-01 23:19:59,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 23:19:59,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 23:19:59,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:19:59,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 23:19:59,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-01 23:19:59,367 INFO L87 Difference]: Start difference. First operand 5529 states and 8254 transitions. Second operand has 7 states, 6 states have (on average 28.666666666666668) internal successors, (172), 4 states have internal predecessors, (172), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 23:20:02,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:20:02,977 INFO L93 Difference]: Finished difference Result 16543 states and 25321 transitions. [2023-04-01 23:20:02,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-01 23:20:02,978 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 28.666666666666668) internal successors, (172), 4 states have internal predecessors, (172), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 178 [2023-04-01 23:20:02,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:20:03,022 INFO L225 Difference]: With dead ends: 16543 [2023-04-01 23:20:03,022 INFO L226 Difference]: Without dead ends: 11020 [2023-04-01 23:20:03,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-04-01 23:20:03,039 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 2520 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 2981 mSolverCounterSat, 773 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2520 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 3754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 773 IncrementalHoareTripleChecker+Valid, 2981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-01 23:20:03,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2520 Valid, 327 Invalid, 3754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [773 Valid, 2981 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-01 23:20:03,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11020 states. [2023-04-01 23:20:03,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11020 to 7862. [2023-04-01 23:20:03,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7862 states, 7674 states have (on average 1.3259056554599948) internal successors, (10175), 7744 states have internal predecessors, (10175), 36 states have call successors, (36), 36 states have call predecessors, (36), 151 states have return successors, (724), 81 states have call predecessors, (724), 35 states have call successors, (724) [2023-04-01 23:20:03,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7862 states to 7862 states and 10935 transitions. [2023-04-01 23:20:03,270 INFO L78 Accepts]: Start accepts. Automaton has 7862 states and 10935 transitions. Word has length 178 [2023-04-01 23:20:03,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:20:03,270 INFO L495 AbstractCegarLoop]: Abstraction has 7862 states and 10935 transitions. [2023-04-01 23:20:03,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 28.666666666666668) internal successors, (172), 4 states have internal predecessors, (172), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 23:20:03,271 INFO L276 IsEmpty]: Start isEmpty. Operand 7862 states and 10935 transitions. [2023-04-01 23:20:03,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-04-01 23:20:03,273 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:20:03,273 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2023-04-01 23:20:03,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 23:20:03,274 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:20:03,274 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:20:03,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1486461662, now seen corresponding path program 1 times [2023-04-01 23:20:03,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:20:03,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259312073] [2023-04-01 23:20:03,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:20:03,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:20:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:20:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:03,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:20:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:03,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-01 23:20:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:03,575 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-04-01 23:20:03,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:20:03,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259312073] [2023-04-01 23:20:03,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259312073] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:20:03,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502266243] [2023-04-01 23:20:03,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:20:03,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:20:03,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:20:03,577 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) [2023-04-01 23:20:03,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 23:20:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:03,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 23:20:03,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:20:03,753 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-04-01 23:20:03,753 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 23:20:03,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502266243] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 23:20:03,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 23:20:03,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-04-01 23:20:03,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814595448] [2023-04-01 23:20:03,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 23:20:03,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 23:20:03,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:20:03,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 23:20:03,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-04-01 23:20:03,755 INFO L87 Difference]: Start difference. First operand 7862 states and 10935 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 23:20:05,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:20:05,986 INFO L93 Difference]: Finished difference Result 19719 states and 28902 transitions. [2023-04-01 23:20:05,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 23:20:05,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 196 [2023-04-01 23:20:05,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:20:06,029 INFO L225 Difference]: With dead ends: 19719 [2023-04-01 23:20:06,030 INFO L226 Difference]: Without dead ends: 11863 [2023-04-01 23:20:06,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-04-01 23:20:06,047 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 453 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-01 23:20:06,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 541 Invalid, 1765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-01 23:20:06,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11863 states. [2023-04-01 23:20:06,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11863 to 10513. [2023-04-01 23:20:06,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10513 states, 10275 states have (on average 1.3324574209245743) internal successors, (13691), 10361 states have internal predecessors, (13691), 48 states have call successors, (48), 48 states have call predecessors, (48), 189 states have return successors, (1323), 103 states have call predecessors, (1323), 47 states have call successors, (1323) [2023-04-01 23:20:06,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10513 states to 10513 states and 15062 transitions. [2023-04-01 23:20:06,327 INFO L78 Accepts]: Start accepts. Automaton has 10513 states and 15062 transitions. Word has length 196 [2023-04-01 23:20:06,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:20:06,328 INFO L495 AbstractCegarLoop]: Abstraction has 10513 states and 15062 transitions. [2023-04-01 23:20:06,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 23:20:06,329 INFO L276 IsEmpty]: Start isEmpty. Operand 10513 states and 15062 transitions. [2023-04-01 23:20:06,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-04-01 23:20:06,331 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:20:06,331 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 23:20:06,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 23:20:06,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:20:06,537 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:20:06,538 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:20:06,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1289038000, now seen corresponding path program 1 times [2023-04-01 23:20:06,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:20:06,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615842501] [2023-04-01 23:20:06,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:20:06,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:20:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:06,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:20:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:06,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:20:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:06,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-01 23:20:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:06,837 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 23:20:06,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:20:06,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615842501] [2023-04-01 23:20:06,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615842501] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:20:06,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315554449] [2023-04-01 23:20:06,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:20:06,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:20:06,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:20:06,841 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) [2023-04-01 23:20:06,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 23:20:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:07,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 23:20:07,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:20:07,132 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 138 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 23:20:07,132 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 23:20:07,397 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 138 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 23:20:07,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315554449] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 23:20:07,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 23:20:07,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2023-04-01 23:20:07,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206215241] [2023-04-01 23:20:07,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 23:20:07,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-01 23:20:07,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:20:07,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-01 23:20:07,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-04-01 23:20:07,402 INFO L87 Difference]: Start difference. First operand 10513 states and 15062 transitions. Second operand has 11 states, 11 states have (on average 32.36363636363637) internal successors, (356), 9 states have internal predecessors, (356), 4 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-04-01 23:20:12,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:20:12,866 INFO L93 Difference]: Finished difference Result 25888 states and 38704 transitions. [2023-04-01 23:20:12,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-01 23:20:12,866 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 32.36363636363637) internal successors, (356), 9 states have internal predecessors, (356), 4 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 206 [2023-04-01 23:20:12,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:20:12,924 INFO L225 Difference]: With dead ends: 25888 [2023-04-01 23:20:12,924 INFO L226 Difference]: Without dead ends: 15381 [2023-04-01 23:20:12,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 417 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=402, Unknown=0, NotChecked=0, Total=552 [2023-04-01 23:20:12,953 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 4189 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 5602 mSolverCounterSat, 1543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4198 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 7145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1543 IncrementalHoareTripleChecker+Valid, 5602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-04-01 23:20:12,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4198 Valid, 361 Invalid, 7145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1543 Valid, 5602 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-04-01 23:20:12,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15381 states. [2023-04-01 23:20:13,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15381 to 14921. [2023-04-01 23:20:13,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14921 states, 14603 states have (on average 1.295144833253441) internal successors, (18913), 14713 states have internal predecessors, (18913), 68 states have call successors, (68), 68 states have call predecessors, (68), 249 states have return successors, (1850), 139 states have call predecessors, (1850), 67 states have call successors, (1850) [2023-04-01 23:20:13,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14921 states to 14921 states and 20831 transitions. [2023-04-01 23:20:13,290 INFO L78 Accepts]: Start accepts. Automaton has 14921 states and 20831 transitions. Word has length 206 [2023-04-01 23:20:13,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:20:13,291 INFO L495 AbstractCegarLoop]: Abstraction has 14921 states and 20831 transitions. [2023-04-01 23:20:13,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 32.36363636363637) internal successors, (356), 9 states have internal predecessors, (356), 4 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-04-01 23:20:13,291 INFO L276 IsEmpty]: Start isEmpty. Operand 14921 states and 20831 transitions. [2023-04-01 23:20:13,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-04-01 23:20:13,295 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:20:13,295 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 23:20:13,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-01 23:20:13,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:20:13,502 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:20:13,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:20:13,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1216590166, now seen corresponding path program 1 times [2023-04-01 23:20:13,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:20:13,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306125472] [2023-04-01 23:20:13,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:20:13,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:20:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:13,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:20:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:13,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:20:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:13,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-01 23:20:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:13,840 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-04-01 23:20:13,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:20:13,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306125472] [2023-04-01 23:20:13,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306125472] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:20:13,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410193619] [2023-04-01 23:20:13,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:20:13,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:20:13,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:20:13,842 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 23:20:13,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-01 23:20:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:13,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-01 23:20:13,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:20:14,011 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-04-01 23:20:14,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 23:20:14,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410193619] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 23:20:14,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 23:20:14,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2023-04-01 23:20:14,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978367434] [2023-04-01 23:20:14,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 23:20:14,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 23:20:14,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:20:14,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 23:20:14,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 23:20:14,013 INFO L87 Difference]: Start difference. First operand 14921 states and 20831 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 23:20:16,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:20:16,299 INFO L93 Difference]: Finished difference Result 35607 states and 51282 transitions. [2023-04-01 23:20:16,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 23:20:16,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 252 [2023-04-01 23:20:16,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:20:16,391 INFO L225 Difference]: With dead ends: 35607 [2023-04-01 23:20:16,392 INFO L226 Difference]: Without dead ends: 20692 [2023-04-01 23:20:16,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 23:20:16,426 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 477 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-01 23:20:16,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 553 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-01 23:20:16,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20692 states. [2023-04-01 23:20:16,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20692 to 19350. [2023-04-01 23:20:16,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19350 states, 18957 states have (on average 1.3197235849554254) internal successors, (25018), 19088 states have internal predecessors, (25018), 88 states have call successors, (88), 88 states have call predecessors, (88), 304 states have return successors, (2817), 173 states have call predecessors, (2817), 87 states have call successors, (2817) [2023-04-01 23:20:16,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19350 states to 19350 states and 27923 transitions. [2023-04-01 23:20:16,949 INFO L78 Accepts]: Start accepts. Automaton has 19350 states and 27923 transitions. Word has length 252 [2023-04-01 23:20:16,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:20:16,950 INFO L495 AbstractCegarLoop]: Abstraction has 19350 states and 27923 transitions. [2023-04-01 23:20:16,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 23:20:16,950 INFO L276 IsEmpty]: Start isEmpty. Operand 19350 states and 27923 transitions. [2023-04-01 23:20:16,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-04-01 23:20:16,954 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:20:16,955 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 23:20:16,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-01 23:20:17,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:20:17,161 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:20:17,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:20:17,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1224838645, now seen corresponding path program 1 times [2023-04-01 23:20:17,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:20:17,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187832065] [2023-04-01 23:20:17,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:20:17,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:20:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:17,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:20:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:17,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:20:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:17,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-01 23:20:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:17,545 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-04-01 23:20:17,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:20:17,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187832065] [2023-04-01 23:20:17,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187832065] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:20:17,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698689985] [2023-04-01 23:20:17,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:20:17,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:20:17,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:20:17,547 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 23:20:17,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-01 23:20:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:20:17,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 10 conjunts are in the unsatisfiable core [2023-04-01 23:20:17,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:20:18,145 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-04-01 23:20:18,145 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 23:20:18,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698689985] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:20:18,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-04-01 23:20:18,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2023-04-01 23:20:18,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465412388] [2023-04-01 23:20:18,593 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-04-01 23:20:18,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-01 23:20:18,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:20:18,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-01 23:20:18,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-04-01 23:20:18,595 INFO L87 Difference]: Start difference. First operand 19350 states and 27923 transitions. Second operand has 10 states, 10 states have (on average 35.1) internal successors, (351), 8 states have internal predecessors, (351), 5 states have call successors, (9), 7 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-01 23:20:20,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:20:22,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:20:26,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:20:28,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:20:31,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:20:33,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:20:35,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:20:38,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:20:41,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:20:44,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:20:46,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:20:49,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:20:51,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:20:54,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:20:56,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:20:58,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:01,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:03,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:05,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:08,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:10,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:12,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:14,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:18,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:20,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:22,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:24,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:26,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:29,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:32,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:34,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:36,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:40,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:43,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:46,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:49,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:51,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:54,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:56,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:21:58,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:00,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:03,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:05,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:09,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:12,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:14,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:15,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:18,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:19,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:22,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:25,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:27,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:29,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:31,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:34,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:37,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:39,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:42,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:44,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:46,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:49,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:52,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:54,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:56,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:22:58,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:00,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:02,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:04,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:07,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:10,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:12,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:15,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:17,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:19,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:21,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:23,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:25,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:27,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:29,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:32,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:34,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:36,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:39,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:41,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:43,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:45,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:47,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:49,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:52,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-04-01 23:23:55,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0]