/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/Problem01_label14.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 20:18:51,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 20:18:51,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 20:18:51,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-01 20:18:51,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 20:18:51,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 20:18:51,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 20:18:51,365 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 20:18:51,398 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 20:18:51,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 20:18:51,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 20:18:51,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 20:18:51,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 20:18:51,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 20:18:51,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-01 20:18:51,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-01 20:18:51,401 INFO L138 SettingsManager]: * Use SBE=true [2023-04-01 20:18:51,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 20:18:51,402 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 20:18:51,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 20:18:51,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 20:18:51,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 20:18:51,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 20:18:51,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 20:18:51,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 20:18:51,402 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 20:18:51,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 20:18:51,403 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 20:18:51,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 20:18:51,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 20:18:51,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-01 20:18:51,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 20:18:51,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 20:18:51,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 20:18:51,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 20:18:51,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 20:18:51,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-01 20:18:51,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 20:18:51,404 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-01 20:18:51,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 20:18:51,404 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-01 20:18:51,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-01 20:18:51,405 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-01 20:18:51,405 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-01 20:18:51,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 20:18:51,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 20:18:51,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 20:18:51,646 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 20:18:51,646 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 20:18:51,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label14.c [2023-04-01 20:18:52,757 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 20:18:53,117 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 20:18:53,118 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label14.c [2023-04-01 20:18:53,127 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/239c7bbb3/173c19c028b9427c8f06d553c5166b4a/FLAGfa3190c65 [2023-04-01 20:18:53,141 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/239c7bbb3/173c19c028b9427c8f06d553c5166b4a [2023-04-01 20:18:53,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 20:18:53,145 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 20:18:53,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 20:18:53,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 20:18:53,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 20:18:53,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 08:18:53" (1/1) ... [2023-04-01 20:18:53,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78142a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:18:53, skipping insertion in model container [2023-04-01 20:18:53,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 08:18:53" (1/1) ... [2023-04-01 20:18:53,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 20:18:53,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 20:18:53,482 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/Problem01_label14.c[21834,21847] [2023-04-01 20:18:53,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 20:18:53,526 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 20:18:53,590 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/Problem01_label14.c[21834,21847] [2023-04-01 20:18:53,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 20:18:53,607 INFO L208 MainTranslator]: Completed translation [2023-04-01 20:18:53,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:18:53 WrapperNode [2023-04-01 20:18:53,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 20:18:53,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 20:18:53,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 20:18:53,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 20:18:53,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:18:53" (1/1) ... [2023-04-01 20:18:53,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:18:53" (1/1) ... [2023-04-01 20:18:53,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:18:53" (1/1) ... [2023-04-01 20:18:53,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:18:53" (1/1) ... [2023-04-01 20:18:53,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:18:53" (1/1) ... [2023-04-01 20:18:53,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:18:53" (1/1) ... [2023-04-01 20:18:53,682 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:18:53" (1/1) ... [2023-04-01 20:18:53,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:18:53" (1/1) ... [2023-04-01 20:18:53,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 20:18:53,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 20:18:53,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 20:18:53,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 20:18:53,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:18:53" (1/1) ... [2023-04-01 20:18:53,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 20:18:53,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:18:53,726 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 20:18:53,749 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 20:18:53,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 20:18:53,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 20:18:53,766 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 20:18:53,767 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-01 20:18:53,767 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 20:18:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-01 20:18:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 20:18:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 20:18:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 20:18:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 20:18:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 20:18:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 20:18:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 20:18:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 20:18:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 20:18:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 20:18:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 20:18:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 20:18:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 20:18:53,854 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 20:18:53,856 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 20:18:54,870 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 20:18:54,882 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 20:18:54,882 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 20:18:54,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 08:18:54 BoogieIcfgContainer [2023-04-01 20:18:54,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 20:18:54,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 20:18:54,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 20:18:54,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 20:18:54,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 08:18:53" (1/3) ... [2023-04-01 20:18:54,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36811747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 08:18:54, skipping insertion in model container [2023-04-01 20:18:54,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:18:53" (2/3) ... [2023-04-01 20:18:54,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36811747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 08:18:54, skipping insertion in model container [2023-04-01 20:18:54,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 08:18:54" (3/3) ... [2023-04-01 20:18:54,894 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label14.c [2023-04-01 20:18:54,910 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 20:18:54,910 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 20:18:54,969 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 20:18:54,975 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;@5e8ad2c0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-01 20:18:54,975 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 20:18:54,980 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 199 states have (on average 1.6582914572864322) internal successors, (330), 200 states have internal predecessors, (330), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 20:18:54,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-01 20:18:54,999 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:18:55,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 20:18:55,000 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:18:55,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:18:55,004 INFO L85 PathProgramCache]: Analyzing trace with hash 675612304, now seen corresponding path program 1 times [2023-04-01 20:18:55,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:18:55,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28340560] [2023-04-01 20:18:55,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:18:55,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:18:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:18:55,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:18:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:18:55,866 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 20:18:55,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:18:55,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28340560] [2023-04-01 20:18:55,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28340560] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 20:18:55,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 20:18:55,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 20:18:55,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616705303] [2023-04-01 20:18:55,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 20:18:55,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 20:18:55,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:18:55,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 20:18:55,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 20:18:55,914 INFO L87 Difference]: Start difference. First operand has 207 states, 199 states have (on average 1.6582914572864322) internal successors, (330), 200 states have internal predecessors, (330), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 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 20:18:57,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:18:57,486 INFO L93 Difference]: Finished difference Result 698 states and 1233 transitions. [2023-04-01 20:18:57,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 20:18:57,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 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 137 [2023-04-01 20:18:57,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:18:57,507 INFO L225 Difference]: With dead ends: 698 [2023-04-01 20:18:57,507 INFO L226 Difference]: Without dead ends: 423 [2023-04-01 20:18:57,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-04-01 20:18:57,520 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 821 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-01 20:18:57,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 28 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-01 20:18:57,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2023-04-01 20:18:57,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2023-04-01 20:18:57,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 405 states have (on average 1.4469135802469135) internal successors, (586), 407 states have internal predecessors, (586), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-04-01 20:18:57,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 603 transitions. [2023-04-01 20:18:57,582 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 603 transitions. Word has length 137 [2023-04-01 20:18:57,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:18:57,582 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 603 transitions. [2023-04-01 20:18:57,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 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 20:18:57,583 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 603 transitions. [2023-04-01 20:18:57,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-04-01 20:18:57,587 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:18:57,587 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 20:18:57,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 20:18:57,588 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:18:57,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:18:57,588 INFO L85 PathProgramCache]: Analyzing trace with hash -256210172, now seen corresponding path program 1 times [2023-04-01 20:18:57,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:18:57,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865741489] [2023-04-01 20:18:57,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:18:57,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:18:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:18:58,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:18:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:18:58,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 20:18:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:18:58,142 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 20:18:58,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:18:58,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865741489] [2023-04-01 20:18:58,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865741489] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 20:18:58,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 20:18:58,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 20:18:58,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544994924] [2023-04-01 20:18:58,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 20:18:58,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 20:18:58,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:18:58,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 20:18:58,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-01 20:18:58,149 INFO L87 Difference]: Start difference. First operand 417 states and 603 transitions. Second operand has 7 states, 6 states have (on average 24.666666666666668) internal successors, (148), 4 states have internal predecessors, (148), 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 20:18:59,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:18:59,031 INFO L93 Difference]: Finished difference Result 1269 states and 1882 transitions. [2023-04-01 20:18:59,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-01 20:18:59,032 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 24.666666666666668) internal successors, (148), 4 states have internal predecessors, (148), 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 154 [2023-04-01 20:18:59,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:18:59,038 INFO L225 Difference]: With dead ends: 1269 [2023-04-01 20:18:59,038 INFO L226 Difference]: Without dead ends: 858 [2023-04-01 20:18:59,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-04-01 20:18:59,041 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 703 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 20:18:59,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 45 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 20:18:59,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2023-04-01 20:18:59,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 699. [2023-04-01 20:18:59,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 677 states have (on average 1.3220088626292468) internal successors, (895), 685 states have internal predecessors, (895), 7 states have call successors, (7), 7 states have call predecessors, (7), 14 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2023-04-01 20:18:59,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 935 transitions. [2023-04-01 20:18:59,086 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 935 transitions. Word has length 154 [2023-04-01 20:18:59,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:18:59,086 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 935 transitions. [2023-04-01 20:18:59,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 24.666666666666668) internal successors, (148), 4 states have internal predecessors, (148), 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 20:18:59,087 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 935 transitions. [2023-04-01 20:18:59,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-04-01 20:18:59,092 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:18:59,092 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2023-04-01 20:18:59,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 20:18:59,092 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:18:59,093 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:18:59,093 INFO L85 PathProgramCache]: Analyzing trace with hash 60709410, now seen corresponding path program 1 times [2023-04-01 20:18:59,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:18:59,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426932513] [2023-04-01 20:18:59,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:18:59,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:18:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:18:59,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:18:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:18:59,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 20:18:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:18:59,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-01 20:18:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:18:59,565 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 20:18:59,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:18:59,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426932513] [2023-04-01 20:18:59,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426932513] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 20:18:59,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691167951] [2023-04-01 20:18:59,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:18:59,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:18:59,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:18:59,573 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 20:18:59,580 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 20:18:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:18:59,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 20:18:59,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 20:19:00,024 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-01 20:19:00,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 20:19:00,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691167951] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 20:19:00,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 20:19:00,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-04-01 20:19:00,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038659354] [2023-04-01 20:19:00,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 20:19:00,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 20:19:00,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:19:00,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 20:19:00,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-01 20:19:00,027 INFO L87 Difference]: Start difference. First operand 699 states and 935 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 20:19:00,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:19:00,399 INFO L93 Difference]: Finished difference Result 2083 states and 2824 transitions. [2023-04-01 20:19:00,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 20:19:00,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 162 [2023-04-01 20:19:00,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:19:00,407 INFO L225 Difference]: With dead ends: 2083 [2023-04-01 20:19:00,407 INFO L226 Difference]: Without dead ends: 1390 [2023-04-01 20:19:00,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-01 20:19:00,410 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 29 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 20:19:00,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 44 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 20:19:00,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2023-04-01 20:19:00,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 977. [2023-04-01 20:19:00,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 947 states have (on average 1.2998944033790918) internal successors, (1231), 959 states have internal predecessors, (1231), 9 states have call successors, (9), 9 states have call predecessors, (9), 20 states have return successors, (51), 8 states have call predecessors, (51), 8 states have call successors, (51) [2023-04-01 20:19:00,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1291 transitions. [2023-04-01 20:19:00,451 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1291 transitions. Word has length 162 [2023-04-01 20:19:00,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:19:00,452 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1291 transitions. [2023-04-01 20:19:00,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 20:19:00,452 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1291 transitions. [2023-04-01 20:19:00,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-04-01 20:19:00,455 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:19:00,456 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:19:00,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-01 20:19:00,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:19:00,663 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:19:00,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:19:00,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1099031752, now seen corresponding path program 1 times [2023-04-01 20:19:00,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:19:00,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540238616] [2023-04-01 20:19:00,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:19:00,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:19:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:19:01,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:19:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:19:01,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 20:19:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:19:01,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-01 20:19:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:19:01,412 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 38 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 20:19:01,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:19:01,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540238616] [2023-04-01 20:19:01,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540238616] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 20:19:01,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67291018] [2023-04-01 20:19:01,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:19:01,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:19:01,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:19:01,415 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 20:19:01,442 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 20:19:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:19:01,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 20:19:01,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 20:19:01,730 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-01 20:19:01,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 20:19:01,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67291018] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 20:19:01,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 20:19:01,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-04-01 20:19:01,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572438553] [2023-04-01 20:19:01,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 20:19:01,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 20:19:01,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:19:01,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 20:19:01,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-01 20:19:01,733 INFO L87 Difference]: Start difference. First operand 977 states and 1291 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 20:19:02,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:19:02,106 INFO L93 Difference]: Finished difference Result 2780 states and 3790 transitions. [2023-04-01 20:19:02,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 20:19:02,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 179 [2023-04-01 20:19:02,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:19:02,117 INFO L225 Difference]: With dead ends: 2780 [2023-04-01 20:19:02,118 INFO L226 Difference]: Without dead ends: 1809 [2023-04-01 20:19:02,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-01 20:19:02,122 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 17 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 20:19:02,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 38 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 20:19:02,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2023-04-01 20:19:02,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1537. [2023-04-01 20:19:02,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1489 states have (on average 1.2787105439892545) internal successors, (1904), 1511 states have internal predecessors, (1904), 13 states have call successors, (13), 13 states have call predecessors, (13), 34 states have return successors, (130), 12 states have call predecessors, (130), 12 states have call successors, (130) [2023-04-01 20:19:02,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2047 transitions. [2023-04-01 20:19:02,198 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2047 transitions. Word has length 179 [2023-04-01 20:19:02,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:19:02,199 INFO L495 AbstractCegarLoop]: Abstraction has 1537 states and 2047 transitions. [2023-04-01 20:19:02,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 20:19:02,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2047 transitions. [2023-04-01 20:19:02,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-04-01 20:19:02,208 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:19:02,208 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:19:02,219 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 20:19:02,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-04-01 20:19:02,417 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:19:02,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:19:02,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1951636050, now seen corresponding path program 1 times [2023-04-01 20:19:02,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:19:02,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819645213] [2023-04-01 20:19:02,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:19:02,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:19:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:19:02,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:19:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:19:02,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 20:19:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:19:02,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-01 20:19:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:19:02,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-01 20:19:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:19:02,916 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 68 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-01 20:19:02,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:19:02,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819645213] [2023-04-01 20:19:02,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819645213] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 20:19:02,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569682707] [2023-04-01 20:19:02,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:19:02,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:19:02,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:19:02,918 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 20:19:02,921 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 20:19:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:19:03,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 20:19:03,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 20:19:03,210 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-01 20:19:03,210 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 20:19:03,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569682707] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 20:19:03,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 20:19:03,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-04-01 20:19:03,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036546807] [2023-04-01 20:19:03,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 20:19:03,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 20:19:03,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:19:03,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 20:19:03,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-01 20:19:03,213 INFO L87 Difference]: Start difference. First operand 1537 states and 2047 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 20:19:03,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:19:03,610 INFO L93 Difference]: Finished difference Result 3614 states and 4920 transitions. [2023-04-01 20:19:03,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 20:19:03,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 205 [2023-04-01 20:19:03,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:19:03,612 INFO L225 Difference]: With dead ends: 3614 [2023-04-01 20:19:03,612 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 20:19:03,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-01 20:19:03,619 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 15 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 20:19:03,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 198 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 20:19:03,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 20:19:03,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 20:19:03,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-01 20:19:03,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 20:19:03,620 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 205 [2023-04-01 20:19:03,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:19:03,620 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 20:19:03,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 20:19:03,621 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 20:19:03,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 20:19:03,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 20:19:03,633 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 20:19:03,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:19:03,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 20:19:04,501 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2023-04-01 20:19:04,501 INFO L899 garLoopResultBuilder]: For program point reach_errorFINAL(line 12) no Hoare annotation was computed. [2023-04-01 20:19:04,501 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 12) no Hoare annotation was computed. [2023-04-01 20:19:04,501 INFO L895 garLoopResultBuilder]: At program point L601(line 601) the Hoare annotation is: (or (and (<= ~a7~0 0) (= ~a21~0 1) (= ~a20~0 1)) (<= ~a20~0 0) (< 0 |old(~a7~0)|) (<= 5 ~a16~0) (< |old(~a16~0)| 5) (not (= |old(~a21~0)| 1)) (< |old(~a8~0)| 15) (not (= 14 ~a8~0)) (not (= |old(~a20~0)| 1))) [2023-04-01 20:19:04,501 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 587 604) no Hoare annotation was computed. [2023-04-01 20:19:04,502 INFO L899 garLoopResultBuilder]: For program point L601-1(line 601) no Hoare annotation was computed. [2023-04-01 20:19:04,502 INFO L899 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2023-04-01 20:19:04,502 INFO L895 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (or (and (<= ~a7~0 0) (= ~a21~0 1) (= ~a20~0 1)) (<= ~a20~0 0) (< 0 |old(~a7~0)|) (<= 5 ~a16~0) (< |old(~a16~0)| 5) (not (= |old(~a21~0)| 1)) (< |old(~a8~0)| 15) (not (= 14 ~a8~0)) (not (= |old(~a20~0)| 1))) [2023-04-01 20:19:04,502 INFO L899 garLoopResultBuilder]: For program point L593-3(lines 587 604) no Hoare annotation was computed. [2023-04-01 20:19:04,502 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 587 604) the Hoare annotation is: (or (< 0 |old(~a7~0)|) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a16~0 |old(~a16~0)|) (= ~a20~0 1) (= ~a8~0 |old(~a8~0)|)) (< |old(~a16~0)| 5) (not (= |old(~a21~0)| 1)) (< |old(~a8~0)| 15) (not (= |old(~a20~0)| 1))) [2023-04-01 20:19:04,502 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2023-04-01 20:19:04,502 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= ~b~0 |old(~b~0)|) (= ~c~0 |old(~c~0)|) (= ~w~0 |old(~w~0)|) (= ~a21~0 |old(~a21~0)|) (= ~v~0 |old(~v~0)|) (= ~a7~0 |old(~a7~0)|) (= ~z~0 |old(~z~0)|) (= ~a17~0 |old(~a17~0)|) (= ~e~0 |old(~e~0)|) (= ~u~0 |old(~u~0)|) (= ~f~0 |old(~f~0)|) (= ~a~0 |old(~a~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a16~0 |old(~a16~0)|) (= ~x~0 |old(~x~0)|) (= ~a8~0 |old(~a8~0)|) (= ~d~0 |old(~d~0)|) (= ~a20~0 |old(~a20~0)|) (= ~y~0 |old(~y~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2023-04-01 20:19:04,503 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 20:19:04,503 INFO L899 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2023-04-01 20:19:04,503 INFO L899 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2023-04-01 20:19:04,503 INFO L899 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2023-04-01 20:19:04,503 INFO L899 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2023-04-01 20:19:04,506 INFO L899 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2023-04-01 20:19:04,506 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2023-04-01 20:19:04,506 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2023-04-01 20:19:04,506 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,506 INFO L899 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,506 INFO L899 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,506 INFO L899 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,506 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2023-04-01 20:19:04,507 INFO L899 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,507 INFO L899 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,507 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2023-04-01 20:19:04,507 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2023-04-01 20:19:04,507 INFO L899 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2023-04-01 20:19:04,507 INFO L899 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2023-04-01 20:19:04,507 INFO L899 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2023-04-01 20:19:04,507 INFO L899 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2023-04-01 20:19:04,507 INFO L899 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2023-04-01 20:19:04,507 INFO L899 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2023-04-01 20:19:04,507 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2023-04-01 20:19:04,508 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2023-04-01 20:19:04,508 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2023-04-01 20:19:04,508 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2023-04-01 20:19:04,508 INFO L899 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,508 INFO L899 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,508 INFO L899 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,508 INFO L899 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,508 INFO L899 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,508 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2023-04-01 20:19:04,508 INFO L899 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,508 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2023-04-01 20:19:04,509 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2023-04-01 20:19:04,509 INFO L899 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2023-04-01 20:19:04,509 INFO L899 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2023-04-01 20:19:04,509 INFO L899 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2023-04-01 20:19:04,509 INFO L899 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2023-04-01 20:19:04,509 INFO L899 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2023-04-01 20:19:04,509 INFO L899 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2023-04-01 20:19:04,509 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2023-04-01 20:19:04,509 INFO L899 garLoopResultBuilder]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 579) no Hoare annotation was computed. [2023-04-01 20:19:04,509 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2023-04-01 20:19:04,510 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2023-04-01 20:19:04,510 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2023-04-01 20:19:04,510 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2023-04-01 20:19:04,510 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2023-04-01 20:19:04,510 INFO L899 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,510 INFO L899 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,510 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,510 INFO L899 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,510 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,510 INFO L899 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,511 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2023-04-01 20:19:04,511 INFO L899 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2023-04-01 20:19:04,511 INFO L899 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2023-04-01 20:19:04,511 INFO L899 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2023-04-01 20:19:04,511 INFO L899 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2023-04-01 20:19:04,511 INFO L899 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2023-04-01 20:19:04,511 INFO L899 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2023-04-01 20:19:04,511 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2023-04-01 20:19:04,511 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2023-04-01 20:19:04,511 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2023-04-01 20:19:04,511 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2023-04-01 20:19:04,511 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2023-04-01 20:19:04,512 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,512 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,512 INFO L899 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,512 INFO L899 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,512 INFO L899 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,512 INFO L899 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,512 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2023-04-01 20:19:04,512 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2023-04-01 20:19:04,512 INFO L899 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2023-04-01 20:19:04,512 INFO L899 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2023-04-01 20:19:04,512 INFO L899 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2023-04-01 20:19:04,513 INFO L899 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2023-04-01 20:19:04,513 INFO L899 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2023-04-01 20:19:04,513 INFO L899 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2023-04-01 20:19:04,513 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2023-04-01 20:19:04,513 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2023-04-01 20:19:04,513 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,513 INFO L899 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,513 INFO L899 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,513 INFO L899 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,513 INFO L899 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,513 INFO L899 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,513 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2023-04-01 20:19:04,514 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2023-04-01 20:19:04,514 INFO L899 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2023-04-01 20:19:04,514 INFO L899 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2023-04-01 20:19:04,514 INFO L899 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2023-04-01 20:19:04,514 INFO L899 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2023-04-01 20:19:04,514 INFO L899 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2023-04-01 20:19:04,514 INFO L899 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2023-04-01 20:19:04,514 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2023-04-01 20:19:04,514 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2023-04-01 20:19:04,514 INFO L899 garLoopResultBuilder]: For program point calculate_outputFINAL(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,514 INFO L899 garLoopResultBuilder]: For program point calculate_outputEXIT(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,514 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2023-04-01 20:19:04,515 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2023-04-01 20:19:04,515 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2023-04-01 20:19:04,515 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2023-04-01 20:19:04,515 INFO L899 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2023-04-01 20:19:04,515 INFO L899 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,515 INFO L899 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,515 INFO L899 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,515 INFO L899 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,515 INFO L899 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,515 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2023-04-01 20:19:04,515 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2023-04-01 20:19:04,515 INFO L899 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2023-04-01 20:19:04,516 INFO L899 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2023-04-01 20:19:04,516 INFO L899 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2023-04-01 20:19:04,516 INFO L899 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2023-04-01 20:19:04,516 INFO L899 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2023-04-01 20:19:04,516 INFO L899 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2023-04-01 20:19:04,516 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2023-04-01 20:19:04,516 INFO L899 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,516 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,516 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,521 INFO L899 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,521 INFO L899 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,521 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2023-04-01 20:19:04,521 INFO L899 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2023-04-01 20:19:04,521 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2023-04-01 20:19:04,521 INFO L899 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2023-04-01 20:19:04,521 INFO L899 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2023-04-01 20:19:04,521 INFO L899 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2023-04-01 20:19:04,521 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2023-04-01 20:19:04,522 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2023-04-01 20:19:04,522 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2023-04-01 20:19:04,522 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2023-04-01 20:19:04,522 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2023-04-01 20:19:04,522 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2023-04-01 20:19:04,522 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2023-04-01 20:19:04,522 INFO L899 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,522 INFO L899 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,522 INFO L899 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,523 INFO L899 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,523 INFO L899 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,523 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2023-04-01 20:19:04,523 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2023-04-01 20:19:04,523 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2023-04-01 20:19:04,523 INFO L899 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2023-04-01 20:19:04,523 INFO L899 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2023-04-01 20:19:04,523 INFO L899 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2023-04-01 20:19:04,523 INFO L899 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2023-04-01 20:19:04,524 INFO L899 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2023-04-01 20:19:04,524 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2023-04-01 20:19:04,524 INFO L899 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,524 INFO L899 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,524 INFO L899 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,524 INFO L899 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,524 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2023-04-01 20:19:04,525 INFO L899 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,525 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2023-04-01 20:19:04,525 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2023-04-01 20:19:04,525 INFO L899 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2023-04-01 20:19:04,525 INFO L899 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2023-04-01 20:19:04,525 INFO L899 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2023-04-01 20:19:04,525 INFO L899 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2023-04-01 20:19:04,525 INFO L899 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2023-04-01 20:19:04,525 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 40 585) the Hoare annotation is: (let ((.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse3 (= ~a16~0 |old(~a16~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|))) (let ((.cse0 (and (= ~a21~0 |old(~a21~0)|) .cse1 .cse2 .cse3 .cse4 (= ~a20~0 |old(~a20~0)|)))) (and (or (< 0 |old(~a20~0)|) .cse0) (or (< 0 |old(~a7~0)|) (and .cse1 .cse2 (= ~a21~0 1) .cse3 (= ~a20~0 1) .cse4) (not (= |old(~a21~0)| 1)) (not (= |old(~a20~0)| 1))) (or .cse0 (= 14 |old(~a8~0)|)) (or (< |old(~a16~0)| 5) .cse0)))) [2023-04-01 20:19:04,525 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2023-04-01 20:19:04,526 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2023-04-01 20:19:04,526 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2023-04-01 20:19:04,526 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2023-04-01 20:19:04,526 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2023-04-01 20:19:04,526 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2023-04-01 20:19:04,526 INFO L899 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,527 INFO L899 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,527 INFO L899 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,527 INFO L899 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,528 INFO L899 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,528 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2023-04-01 20:19:04,528 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2023-04-01 20:19:04,528 INFO L899 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2023-04-01 20:19:04,528 INFO L899 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2023-04-01 20:19:04,528 INFO L899 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2023-04-01 20:19:04,528 INFO L899 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2023-04-01 20:19:04,529 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2023-04-01 20:19:04,529 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2023-04-01 20:19:04,529 INFO L899 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,529 INFO L899 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,529 INFO L899 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,529 INFO L899 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,529 INFO L899 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2023-04-01 20:19:04,529 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2023-04-01 20:19:04,529 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2023-04-01 20:19:04,529 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2023-04-01 20:19:04,529 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2023-04-01 20:19:04,529 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 20:19:04,530 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= 5 ~a16~0) (= ~a21~0 1) (= ~a20~0 1) (<= 15 ~a8~0)) [2023-04-01 20:19:04,530 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 20:19:04,530 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 20:19:04,533 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-01 20:19:04,536 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 20:19:04,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 08:19:04 BoogieIcfgContainer [2023-04-01 20:19:04,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 20:19:04,553 INFO L158 Benchmark]: Toolchain (without parser) took 11407.50ms. Allocated memory was 238.0MB in the beginning and 343.9MB in the end (delta: 105.9MB). Free memory was 200.2MB in the beginning and 243.5MB in the end (delta: -43.3MB). Peak memory consumption was 210.5MB. Max. memory is 8.0GB. [2023-04-01 20:19:04,553 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 198.2MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 20:19:04,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.35ms. Allocated memory is still 238.0MB. Free memory was 199.7MB in the beginning and 172.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-04-01 20:19:04,553 INFO L158 Benchmark]: Boogie Preprocessor took 82.71ms. Allocated memory is still 238.0MB. Free memory was 172.4MB in the beginning and 167.7MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-04-01 20:19:04,554 INFO L158 Benchmark]: RCFGBuilder took 1194.49ms. Allocated memory is still 238.0MB. Free memory was 167.7MB in the beginning and 186.7MB in the end (delta: -19.0MB). Peak memory consumption was 69.6MB. Max. memory is 8.0GB. [2023-04-01 20:19:04,554 INFO L158 Benchmark]: TraceAbstraction took 9663.23ms. Allocated memory was 238.0MB in the beginning and 343.9MB in the end (delta: 105.9MB). Free memory was 186.2MB in the beginning and 243.5MB in the end (delta: -57.3MB). Peak memory consumption was 196.6MB. Max. memory is 8.0GB. [2023-04-01 20:19:04,555 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 198.2MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 460.35ms. Allocated memory is still 238.0MB. Free memory was 199.7MB in the beginning and 172.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 82.71ms. Allocated memory is still 238.0MB. Free memory was 172.4MB in the beginning and 167.7MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1194.49ms. Allocated memory is still 238.0MB. Free memory was 167.7MB in the beginning and 186.7MB in the end (delta: -19.0MB). Peak memory consumption was 69.6MB. Max. memory is 8.0GB. * TraceAbstraction took 9663.23ms. Allocated memory was 238.0MB in the beginning and 343.9MB in the end (delta: 105.9MB). Free memory was 186.2MB in the beginning and 243.5MB in the end (delta: -57.3MB). Peak memory consumption was 196.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 579]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 210 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.6s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1585 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1585 mSDsluCounter, 353 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 611 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2389 IncrementalHoareTripleChecker+Invalid, 3000 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 611 mSolverCounterUnsat, 270 mSDtfsCounter, 2389 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 602 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1537occurred in iteration=4, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 850 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 48 PreInvPairs, 78 NumberOfFragments, 295 HoareAnnotationTreeSize, 48 FomulaSimplifications, 3758 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 953 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 1383 NumberOfCodeBlocks, 1383 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1375 ConstructedInterpolants, 0 QuantifiedInterpolants, 3656 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1525 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 315/336 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((((a7 <= 0 && a21 == 1) && a20 == 1) || a20 <= 0) || 0 < \old(a7)) || 5 <= a16) || \old(a16) < 5) || !(\old(a21) == 1)) || \old(a8) < 15) || !(14 == a8)) || !(\old(a20) == 1) RESULT: Ultimate proved your program to be correct! [2023-04-01 20:19:04,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...