/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/Problem13_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-30 23:25:34,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-30 23:25:34,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-30 23:25:34,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-03-30 23:25:34,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-30 23:25:34,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-30 23:25:34,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-30 23:25:34,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-30 23:25:34,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-30 23:25:34,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-30 23:25:34,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-30 23:25:34,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-30 23:25:34,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-30 23:25:34,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-30 23:25:34,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-30 23:25:34,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-30 23:25:34,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-30 23:25:34,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-30 23:25:34,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-30 23:25:34,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-30 23:25:34,581 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 [2023-03-30 23:25:34,619 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-30 23:25:34,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-30 23:25:34,620 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-30 23:25:34,620 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-30 23:25:34,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-30 23:25:34,622 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-30 23:25:34,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-30 23:25:34,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-30 23:25:34,622 INFO L138 SettingsManager]: * Use SBE=true [2023-03-30 23:25:34,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-30 23:25:34,623 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-30 23:25:34,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-30 23:25:34,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-30 23:25:34,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-30 23:25:34,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-30 23:25:34,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-30 23:25:34,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-30 23:25:34,624 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-30 23:25:34,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-30 23:25:34,625 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-30 23:25:34,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-30 23:25:34,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-30 23:25:34,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-30 23:25:34,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-30 23:25:34,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 23:25:34,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-30 23:25:34,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-30 23:25:34,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-30 23:25:34,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-30 23:25:34,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-30 23:25:34,626 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-30 23:25:34,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-30 23:25:34,626 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-30 23:25:34,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-30 23:25:34,627 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-30 23:25:34,627 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-30 23:25:34,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-30 23:25:34,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-30 23:25:34,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-30 23:25:34,848 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-30 23:25:34,849 INFO L275 PluginConnector]: CDTParser initialized [2023-03-30 23:25:34,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label41.c [2023-03-30 23:25:35,973 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-30 23:25:36,428 INFO L351 CDTParser]: Found 1 translation units. [2023-03-30 23:25:36,429 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label41.c [2023-03-30 23:25:36,464 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f213ae96c/cc016204440f4a19b580760859fcb420/FLAG4fe86b89d [2023-03-30 23:25:36,480 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f213ae96c/cc016204440f4a19b580760859fcb420 [2023-03-30 23:25:36,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-30 23:25:36,484 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-30 23:25:36,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-30 23:25:36,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-30 23:25:36,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-30 23:25:36,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 11:25:36" (1/1) ... [2023-03-30 23:25:36,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@311f35aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 11:25:36, skipping insertion in model container [2023-03-30 23:25:36,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 11:25:36" (1/1) ... [2023-03-30 23:25:36,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-30 23:25:36,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-30 23:25:36,882 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/Problem13_label41.c[6347,6360] [2023-03-30 23:25:37,633 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 23:25:37,644 INFO L203 MainTranslator]: Completed pre-run [2023-03-30 23:25:37,673 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/Problem13_label41.c[6347,6360] [2023-03-30 23:25:38,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 23:25:38,143 INFO L208 MainTranslator]: Completed translation [2023-03-30 23:25:38,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 11:25:38 WrapperNode [2023-03-30 23:25:38,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-30 23:25:38,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-30 23:25:38,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-30 23:25:38,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-30 23:25:38,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 11:25:38" (1/1) ... [2023-03-30 23:25:38,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 11:25:38" (1/1) ... [2023-03-30 23:25:38,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 11:25:38" (1/1) ... [2023-03-30 23:25:38,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 11:25:38" (1/1) ... [2023-03-30 23:25:38,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 11:25:38" (1/1) ... [2023-03-30 23:25:38,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 11:25:38" (1/1) ... [2023-03-30 23:25:38,464 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 11:25:38" (1/1) ... [2023-03-30 23:25:38,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 11:25:38" (1/1) ... [2023-03-30 23:25:38,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-30 23:25:38,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-30 23:25:38,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-30 23:25:38,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-30 23:25:38,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 11:25:38" (1/1) ... [2023-03-30 23:25:38,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 23:25:38,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 23:25:38,543 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) [2023-03-30 23:25:38,569 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 [2023-03-30 23:25:38,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-30 23:25:38,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-30 23:25:38,586 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-30 23:25:38,586 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-03-30 23:25:38,586 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-03-30 23:25:38,586 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-03-30 23:25:38,586 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-03-30 23:25:38,586 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-30 23:25:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-03-30 23:25:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-03-30 23:25:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-03-30 23:25:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-03-30 23:25:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-30 23:25:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-30 23:25:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-30 23:25:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-30 23:25:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-30 23:25:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-30 23:25:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-30 23:25:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-30 23:25:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-30 23:25:38,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-30 23:25:38,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-30 23:25:38,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-30 23:25:38,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-30 23:25:38,681 INFO L236 CfgBuilder]: Building ICFG [2023-03-30 23:25:38,682 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-30 23:25:43,376 INFO L277 CfgBuilder]: Performing block encoding [2023-03-30 23:25:43,395 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-30 23:25:43,395 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-30 23:25:43,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 11:25:43 BoogieIcfgContainer [2023-03-30 23:25:43,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-30 23:25:43,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-30 23:25:43,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-30 23:25:43,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-30 23:25:43,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.03 11:25:36" (1/3) ... [2023-03-30 23:25:43,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4dfb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 11:25:43, skipping insertion in model container [2023-03-30 23:25:43,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 11:25:38" (2/3) ... [2023-03-30 23:25:43,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4dfb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 11:25:43, skipping insertion in model container [2023-03-30 23:25:43,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 11:25:43" (3/3) ... [2023-03-30 23:25:43,411 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label41.c [2023-03-30 23:25:43,427 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-30 23:25:43,427 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-30 23:25:43,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-30 23:25:43,513 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;@2c71e88b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-30 23:25:43,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-30 23:25:43,522 INFO L276 IsEmpty]: Start isEmpty. Operand has 1119 states, 1105 states have (on average 1.820814479638009) internal successors, (2012), 1106 states have internal predecessors, (2012), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-03-30 23:25:43,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-03-30 23:25:43,530 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 23:25:43,531 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] [2023-03-30 23:25:43,531 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 23:25:43,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 23:25:43,536 INFO L85 PathProgramCache]: Analyzing trace with hash -792971679, now seen corresponding path program 1 times [2023-03-30 23:25:43,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 23:25:43,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444141686] [2023-03-30 23:25:43,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 23:25:43,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 23:25:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 23:25:43,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-30 23:25:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 23:25:44,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 23:25:44,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 23:25:44,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444141686] [2023-03-30 23:25:44,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444141686] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 23:25:44,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 23:25:44,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-30 23:25:44,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774541298] [2023-03-30 23:25:44,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 23:25:44,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-30 23:25:44,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 23:25:44,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-30 23:25:44,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-03-30 23:25:44,038 INFO L87 Difference]: Start difference. First operand has 1119 states, 1105 states have (on average 1.820814479638009) internal successors, (2012), 1106 states have internal predecessors, (2012), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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) [2023-03-30 23:25:50,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 23:25:50,499 INFO L93 Difference]: Finished difference Result 3230 states and 5909 transitions. [2023-03-30 23:25:50,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-30 23:25:50,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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 50 [2023-03-30 23:25:50,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 23:25:50,532 INFO L225 Difference]: With dead ends: 3230 [2023-03-30 23:25:50,532 INFO L226 Difference]: Without dead ends: 2026 [2023-03-30 23:25:50,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-03-30 23:25:50,547 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 3015 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 4486 mSolverCounterSat, 603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3015 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 5089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 603 IncrementalHoareTripleChecker+Valid, 4486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-03-30 23:25:50,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3015 Valid, 300 Invalid, 5089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [603 Valid, 4486 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-03-30 23:25:50,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2023-03-30 23:25:50,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 2009. [2023-03-30 23:25:50,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2009 states, 1981 states have (on average 1.6436143361938416) internal successors, (3256), 1983 states have internal predecessors, (3256), 10 states have call successors, (10), 10 states have call predecessors, (10), 17 states have return successors, (25), 15 states have call predecessors, (25), 9 states have call successors, (25) [2023-03-30 23:25:50,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2009 states to 2009 states and 3291 transitions. [2023-03-30 23:25:50,666 INFO L78 Accepts]: Start accepts. Automaton has 2009 states and 3291 transitions. Word has length 50 [2023-03-30 23:25:50,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 23:25:50,666 INFO L495 AbstractCegarLoop]: Abstraction has 2009 states and 3291 transitions. [2023-03-30 23:25:50,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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) [2023-03-30 23:25:50,667 INFO L276 IsEmpty]: Start isEmpty. Operand 2009 states and 3291 transitions. [2023-03-30 23:25:50,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-03-30 23:25:50,671 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 23:25:50,671 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-03-30 23:25:50,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-30 23:25:50,672 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 23:25:50,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 23:25:50,672 INFO L85 PathProgramCache]: Analyzing trace with hash 245477397, now seen corresponding path program 1 times [2023-03-30 23:25:50,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 23:25:50,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808873947] [2023-03-30 23:25:50,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 23:25:50,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 23:25:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 23:25:51,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-30 23:25:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 23:25:51,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-30 23:25:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 23:25:51,173 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 23:25:51,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 23:25:51,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808873947] [2023-03-30 23:25:51,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808873947] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 23:25:51,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 23:25:51,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-30 23:25:51,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822730606] [2023-03-30 23:25:51,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 23:25:51,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-30 23:25:51,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 23:25:51,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-30 23:25:51,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-03-30 23:25:51,179 INFO L87 Difference]: Start difference. First operand 2009 states and 3291 transitions. Second operand has 7 states, 6 states have (on average 19.833333333333332) internal successors, (119), 4 states have internal predecessors, (119), 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) [2023-03-30 23:25:59,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 23:25:59,067 INFO L93 Difference]: Finished difference Result 5863 states and 9700 transitions. [2023-03-30 23:25:59,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-03-30 23:25:59,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.833333333333332) internal successors, (119), 4 states have internal predecessors, (119), 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 125 [2023-03-30 23:25:59,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 23:25:59,087 INFO L225 Difference]: With dead ends: 5863 [2023-03-30 23:25:59,087 INFO L226 Difference]: Without dead ends: 3860 [2023-03-30 23:25:59,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-03-30 23:25:59,094 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 3296 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 7739 mSolverCounterSat, 1185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3296 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 8924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1185 IncrementalHoareTripleChecker+Valid, 7739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-03-30 23:25:59,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3296 Valid, 815 Invalid, 8924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1185 Valid, 7739 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-03-30 23:25:59,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3860 states. [2023-03-30 23:25:59,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3860 to 3760. [2023-03-30 23:25:59,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3760 states, 3688 states have (on average 1.4899674620390455) internal successors, (5495), 3700 states have internal predecessors, (5495), 18 states have call successors, (18), 18 states have call predecessors, (18), 53 states have return successors, (117), 41 states have call predecessors, (117), 17 states have call successors, (117) [2023-03-30 23:25:59,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3760 states to 3760 states and 5630 transitions. [2023-03-30 23:25:59,224 INFO L78 Accepts]: Start accepts. Automaton has 3760 states and 5630 transitions. Word has length 125 [2023-03-30 23:25:59,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 23:25:59,226 INFO L495 AbstractCegarLoop]: Abstraction has 3760 states and 5630 transitions. [2023-03-30 23:25:59,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.833333333333332) internal successors, (119), 4 states have internal predecessors, (119), 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) [2023-03-30 23:25:59,227 INFO L276 IsEmpty]: Start isEmpty. Operand 3760 states and 5630 transitions. [2023-03-30 23:25:59,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-03-30 23:25:59,232 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 23:25:59,232 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-03-30 23:25:59,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-30 23:25:59,232 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 23:25:59,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 23:25:59,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1636194183, now seen corresponding path program 1 times [2023-03-30 23:25:59,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 23:25:59,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649239253] [2023-03-30 23:25:59,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 23:25:59,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 23:25:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 23:25:59,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-30 23:25:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 23:25:59,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-30 23:25:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 23:25:59,623 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 23:25:59,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 23:25:59,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649239253] [2023-03-30 23:25:59,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649239253] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 23:25:59,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 23:25:59,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-30 23:25:59,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692917408] [2023-03-30 23:25:59,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 23:25:59,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-30 23:25:59,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 23:25:59,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-30 23:25:59,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-03-30 23:25:59,629 INFO L87 Difference]: Start difference. First operand 3760 states and 5630 transitions. Second operand has 8 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 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) [2023-03-30 23:26:07,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 23:26:07,992 INFO L93 Difference]: Finished difference Result 14591 states and 22901 transitions. [2023-03-30 23:26:07,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-30 23:26:07,993 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 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 139 [2023-03-30 23:26:07,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 23:26:08,050 INFO L225 Difference]: With dead ends: 14591 [2023-03-30 23:26:08,050 INFO L226 Difference]: Without dead ends: 10837 [2023-03-30 23:26:08,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2023-03-30 23:26:08,068 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 4931 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 8284 mSolverCounterSat, 1969 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4931 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 10253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1969 IncrementalHoareTripleChecker+Valid, 8284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-03-30 23:26:08,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4931 Valid, 813 Invalid, 10253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1969 Valid, 8284 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-03-30 23:26:08,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10837 states. [2023-03-30 23:26:08,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10837 to 10751. [2023-03-30 23:26:08,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10751 states, 10420 states have (on average 1.3435700575815739) internal successors, (14000), 10488 states have internal predecessors, (14000), 50 states have call successors, (50), 50 states have call predecessors, (50), 280 states have return successors, (1257), 212 states have call predecessors, (1257), 49 states have call successors, (1257) [2023-03-30 23:26:08,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10751 states to 10751 states and 15307 transitions. [2023-03-30 23:26:08,472 INFO L78 Accepts]: Start accepts. Automaton has 10751 states and 15307 transitions. Word has length 139 [2023-03-30 23:26:08,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 23:26:08,474 INFO L495 AbstractCegarLoop]: Abstraction has 10751 states and 15307 transitions. [2023-03-30 23:26:08,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 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) [2023-03-30 23:26:08,474 INFO L276 IsEmpty]: Start isEmpty. Operand 10751 states and 15307 transitions. [2023-03-30 23:26:08,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-03-30 23:26:08,478 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 23:26:08,478 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-03-30 23:26:08,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-30 23:26:08,478 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 23:26:08,479 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 23:26:08,479 INFO L85 PathProgramCache]: Analyzing trace with hash -544580204, now seen corresponding path program 1 times [2023-03-30 23:26:08,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 23:26:08,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375887158] [2023-03-30 23:26:08,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 23:26:08,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 23:26:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 23:26:08,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-30 23:26:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 23:26:08,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-30 23:26:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 23:26:08,866 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 23:26:08,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 23:26:08,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375887158] [2023-03-30 23:26:08,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375887158] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 23:26:08,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 23:26:08,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-30 23:26:08,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483948183] [2023-03-30 23:26:08,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 23:26:08,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-30 23:26:08,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 23:26:08,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-30 23:26:08,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-03-30 23:26:08,869 INFO L87 Difference]: Start difference. First operand 10751 states and 15307 transitions. Second operand has 8 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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) [2023-03-30 23:26:16,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 23:26:16,754 INFO L93 Difference]: Finished difference Result 39561 states and 60683 transitions. [2023-03-30 23:26:16,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-30 23:26:16,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 168 [2023-03-30 23:26:16,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 23:26:16,893 INFO L225 Difference]: With dead ends: 39561 [2023-03-30 23:26:16,893 INFO L226 Difference]: Without dead ends: 28816 [2023-03-30 23:26:16,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2023-03-30 23:26:16,941 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 5236 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 7481 mSolverCounterSat, 2178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 9659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2178 IncrementalHoareTripleChecker+Valid, 7481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-03-30 23:26:16,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5236 Valid, 569 Invalid, 9659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2178 Valid, 7481 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-03-30 23:26:16,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28816 states. [2023-03-30 23:26:17,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28816 to 28710. [2023-03-30 23:26:17,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28710 states, 27783 states have (on average 1.2118561710398446) internal successors, (33669), 28013 states have internal predecessors, (33669), 134 states have call successors, (134), 134 states have call predecessors, (134), 792 states have return successors, (5011), 562 states have call predecessors, (5011), 133 states have call successors, (5011) [2023-03-30 23:26:17,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28710 states to 28710 states and 38814 transitions. [2023-03-30 23:26:17,770 INFO L78 Accepts]: Start accepts. Automaton has 28710 states and 38814 transitions. Word has length 168 [2023-03-30 23:26:17,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 23:26:17,772 INFO L495 AbstractCegarLoop]: Abstraction has 28710 states and 38814 transitions. [2023-03-30 23:26:17,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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) [2023-03-30 23:26:17,773 INFO L276 IsEmpty]: Start isEmpty. Operand 28710 states and 38814 transitions. [2023-03-30 23:26:17,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-03-30 23:26:17,775 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 23:26:17,775 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-03-30 23:26:17,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-30 23:26:17,775 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 23:26:17,776 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 23:26:17,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1188124546, now seen corresponding path program 1 times [2023-03-30 23:26:17,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 23:26:17,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71187364] [2023-03-30 23:26:17,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 23:26:17,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 23:26:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 23:26:18,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-30 23:26:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 23:26:18,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-30 23:26:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 23:26:18,816 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 23:26:18,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 23:26:18,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71187364] [2023-03-30 23:26:18,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71187364] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-30 23:26:18,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355508870] [2023-03-30 23:26:18,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 23:26:18,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 23:26:18,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 23:26:18,833 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) [2023-03-30 23:26:18,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-30 23:26:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 23:26:18,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 9 conjunts are in the unsatisfiable core [2023-03-30 23:26:18,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 23:26:19,276 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 23:26:19,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-30 23:26:19,876 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 23:26:19,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355508870] provided 1 perfect and 1 imperfect interpolant sequences [2023-03-30 23:26:19,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-03-30 23:26:19,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 16 [2023-03-30 23:26:19,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107408251] [2023-03-30 23:26:19,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 23:26:19,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-30 23:26:19,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 23:26:19,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-30 23:26:19,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-03-30 23:26:19,879 INFO L87 Difference]: Start difference. First operand 28710 states and 38814 transitions. Second operand has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 5 states have internal predecessors, (173), 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) [2023-03-30 23:26:27,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 23:26:27,597 INFO L93 Difference]: Finished difference Result 101717 states and 147203 transitions. [2023-03-30 23:26:27,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-30 23:26:27,598 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 5 states have internal predecessors, (173), 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 179 [2023-03-30 23:26:27,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 23:26:27,910 INFO L225 Difference]: With dead ends: 101717 [2023-03-30 23:26:27,911 INFO L226 Difference]: Without dead ends: 73013 [2023-03-30 23:26:27,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 352 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2023-03-30 23:26:27,985 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 4648 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 4255 mSolverCounterSat, 3933 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4648 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 8188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3933 IncrementalHoareTripleChecker+Valid, 4255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-03-30 23:26:27,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4648 Valid, 416 Invalid, 8188 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3933 Valid, 4255 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-03-30 23:26:28,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73013 states.