/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.07.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 13:40:13,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 13:40:13,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 13:40:14,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 13:40:14,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 13:40:14,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 13:40:14,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 13:40:14,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 13:40:14,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 13:40:14,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 13:40:14,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 13:40:14,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 13:40:14,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 13:40:14,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 13:40:14,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 13:40:14,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 13:40:14,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 13:40:14,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 13:40:14,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 13:40:14,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 13:40:14,046 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 13:40:14,067 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 13:40:14,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 13:40:14,069 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 13:40:14,069 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 13:40:14,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 13:40:14,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 13:40:14,071 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 13:40:14,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 13:40:14,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 13:40:14,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 13:40:14,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 13:40:14,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 13:40:14,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 13:40:14,073 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 13:40:14,073 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 13:40:14,074 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 13:40:14,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 13:40:14,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 13:40:14,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 13:40:14,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 13:40:14,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 13:40:14,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:40:14,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 13:40:14,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 13:40:14,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 13:40:14,076 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 13:40:14,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 13:40:14,076 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 13:40:14,076 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 13:40:14,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 13:40:14,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 13:40:14,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 13:40:14,078 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 13:40:14,078 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 13:40:14,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 13:40:14,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 13:40:14,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 13:40:14,298 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 13:40:14,307 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 13:40:14,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.07.cil-1.c [2022-01-10 13:40:14,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b0181758/ca76d033dfa544bebb53ad1583a0b9ac/FLAG0570d972c [2022-01-10 13:40:15,190 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 13:40:15,191 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.07.cil-1.c [2022-01-10 13:40:15,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b0181758/ca76d033dfa544bebb53ad1583a0b9ac/FLAG0570d972c [2022-01-10 13:40:15,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b0181758/ca76d033dfa544bebb53ad1583a0b9ac [2022-01-10 13:40:15,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 13:40:15,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 13:40:15,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 13:40:15,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 13:40:15,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 13:40:15,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:40:15" (1/1) ... [2022-01-10 13:40:15,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b257f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:15, skipping insertion in model container [2022-01-10 13:40:15,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:40:15" (1/1) ... [2022-01-10 13:40:15,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 13:40:15,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 13:40:17,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.07.cil-1.c[380323,380336] [2022-01-10 13:40:17,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.07.cil-1.c[383339,383352] [2022-01-10 13:40:17,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:40:17,236 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 13:40:18,015 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.07.cil-1.c[380323,380336] [2022-01-10 13:40:18,020 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.07.cil-1.c[383339,383352] [2022-01-10 13:40:18,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:40:18,093 INFO L208 MainTranslator]: Completed translation [2022-01-10 13:40:18,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:18 WrapperNode [2022-01-10 13:40:18,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 13:40:18,095 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 13:40:18,095 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 13:40:18,095 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 13:40:18,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:18" (1/1) ... [2022-01-10 13:40:18,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:18" (1/1) ... [2022-01-10 13:40:18,570 INFO L137 Inliner]: procedures = 59, calls = 62, calls flagged for inlining = 57, calls inlined = 144, statements flattened = 14324 [2022-01-10 13:40:18,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 13:40:18,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 13:40:18,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 13:40:18,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 13:40:18,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:18" (1/1) ... [2022-01-10 13:40:18,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:18" (1/1) ... [2022-01-10 13:40:18,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:18" (1/1) ... [2022-01-10 13:40:18,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:18" (1/1) ... [2022-01-10 13:40:18,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:18" (1/1) ... [2022-01-10 13:40:18,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:18" (1/1) ... [2022-01-10 13:40:19,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:18" (1/1) ... [2022-01-10 13:40:19,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 13:40:19,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 13:40:19,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 13:40:19,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 13:40:19,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:18" (1/1) ... [2022-01-10 13:40:19,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:40:19,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 13:40:19,116 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) [2022-01-10 13:40:19,139 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 [2022-01-10 13:40:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 13:40:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 13:40:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 13:40:19,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 13:40:19,328 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 13:40:19,330 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 13:40:27,455 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 13:40:27,489 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 13:40:27,489 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-01-10 13:40:27,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:40:27 BoogieIcfgContainer [2022-01-10 13:40:27,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 13:40:27,494 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 13:40:27,494 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 13:40:27,495 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 13:40:27,497 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:40:27" (1/1) ... [2022-01-10 13:40:29,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:40:29 BasicIcfg [2022-01-10 13:40:29,086 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 13:40:29,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 13:40:29,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 13:40:29,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 13:40:29,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:40:15" (1/4) ... [2022-01-10 13:40:29,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68726cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:40:29, skipping insertion in model container [2022-01-10 13:40:29,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:18" (2/4) ... [2022-01-10 13:40:29,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68726cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:40:29, skipping insertion in model container [2022-01-10 13:40:29,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:40:27" (3/4) ... [2022-01-10 13:40:29,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68726cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:40:29, skipping insertion in model container [2022-01-10 13:40:29,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:40:29" (4/4) ... [2022-01-10 13:40:29,095 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.07.cil-1.cTransformedIcfg [2022-01-10 13:40:29,099 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 13:40:29,099 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 13:40:29,152 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 13:40:29,159 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 13:40:29,159 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 13:40:29,209 INFO L276 IsEmpty]: Start isEmpty. Operand has 3020 states, 3017 states have (on average 1.7742790851839576) internal successors, (5353), 3019 states have internal predecessors, (5353), 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) [2022-01-10 13:40:29,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:29,220 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:29,220 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:29,221 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:29,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:29,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1298378125, now seen corresponding path program 1 times [2022-01-10 13:40:29,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:29,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727125169] [2022-01-10 13:40:29,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:29,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:29,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:29,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:29,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727125169] [2022-01-10 13:40:29,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727125169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:29,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:29,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:29,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939091732] [2022-01-10 13:40:29,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:29,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:29,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:29,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:29,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:29,581 INFO L87 Difference]: Start difference. First operand has 3020 states, 3017 states have (on average 1.7742790851839576) internal successors, (5353), 3019 states have internal predecessors, (5353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:29,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:29,887 INFO L93 Difference]: Finished difference Result 6700 states and 11699 transitions. [2022-01-10 13:40:29,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:29,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:29,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:29,919 INFO L225 Difference]: With dead ends: 6700 [2022-01-10 13:40:29,920 INFO L226 Difference]: Without dead ends: 3624 [2022-01-10 13:40:29,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:29,935 INFO L933 BasicCegarLoop]: 5262 mSDtfsCounter, 5166 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5166 SdHoareTripleChecker+Valid, 6336 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:29,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5166 Valid, 6336 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:29,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3624 states. [2022-01-10 13:40:30,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3624 to 3622. [2022-01-10 13:40:30,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 1.7096685082872929) internal successors, (6189), 3621 states have internal predecessors, (6189), 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) [2022-01-10 13:40:30,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 6189 transitions. [2022-01-10 13:40:30,121 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 6189 transitions. Word has length 110 [2022-01-10 13:40:30,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:30,122 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 6189 transitions. [2022-01-10 13:40:30,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:30,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 6189 transitions. [2022-01-10 13:40:30,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:30,125 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:30,125 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:30,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 13:40:30,126 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:30,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:30,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1120812461, now seen corresponding path program 1 times [2022-01-10 13:40:30,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:30,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88618642] [2022-01-10 13:40:30,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:30,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:30,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:30,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:30,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88618642] [2022-01-10 13:40:30,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88618642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:30,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:30,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:30,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073086621] [2022-01-10 13:40:30,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:30,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:30,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:30,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:30,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:30,225 INFO L87 Difference]: Start difference. First operand 3622 states and 6189 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:30,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:30,304 INFO L93 Difference]: Finished difference Result 5108 states and 8396 transitions. [2022-01-10 13:40:30,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:30,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:30,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:30,321 INFO L225 Difference]: With dead ends: 5108 [2022-01-10 13:40:30,322 INFO L226 Difference]: Without dead ends: 3622 [2022-01-10 13:40:30,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:30,327 INFO L933 BasicCegarLoop]: 5189 mSDtfsCounter, 5179 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5179 SdHoareTripleChecker+Valid, 5189 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:30,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5179 Valid, 5189 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:30,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2022-01-10 13:40:30,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3622. [2022-01-10 13:40:30,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 1.7074585635359116) internal successors, (6181), 3621 states have internal predecessors, (6181), 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) [2022-01-10 13:40:30,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 6181 transitions. [2022-01-10 13:40:30,418 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 6181 transitions. Word has length 110 [2022-01-10 13:40:30,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:30,419 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 6181 transitions. [2022-01-10 13:40:30,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:30,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 6181 transitions. [2022-01-10 13:40:30,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:30,431 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:30,431 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:30,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 13:40:30,432 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:30,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:30,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1796505070, now seen corresponding path program 1 times [2022-01-10 13:40:30,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:30,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660681515] [2022-01-10 13:40:30,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:30,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:30,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:30,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:30,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660681515] [2022-01-10 13:40:30,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660681515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:30,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:30,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:30,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583959023] [2022-01-10 13:40:30,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:30,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:30,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:30,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:30,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:30,498 INFO L87 Difference]: Start difference. First operand 3622 states and 6181 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:30,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:30,582 INFO L93 Difference]: Finished difference Result 5107 states and 8379 transitions. [2022-01-10 13:40:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:30,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:30,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:30,598 INFO L225 Difference]: With dead ends: 5107 [2022-01-10 13:40:30,599 INFO L226 Difference]: Without dead ends: 3622 [2022-01-10 13:40:30,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:30,610 INFO L933 BasicCegarLoop]: 5184 mSDtfsCounter, 5173 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5173 SdHoareTripleChecker+Valid, 5184 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:30,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5173 Valid, 5184 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:30,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2022-01-10 13:40:30,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3622. [2022-01-10 13:40:30,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 1.7052486187845304) internal successors, (6173), 3621 states have internal predecessors, (6173), 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) [2022-01-10 13:40:30,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 6173 transitions. [2022-01-10 13:40:30,710 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 6173 transitions. Word has length 110 [2022-01-10 13:40:30,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:30,710 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 6173 transitions. [2022-01-10 13:40:30,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:30,711 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 6173 transitions. [2022-01-10 13:40:30,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:30,712 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:30,713 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:30,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 13:40:30,713 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:30,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:30,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1680119310, now seen corresponding path program 1 times [2022-01-10 13:40:30,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:30,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376974403] [2022-01-10 13:40:30,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:30,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:30,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:30,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:30,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376974403] [2022-01-10 13:40:30,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376974403] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:30,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:30,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:30,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708830050] [2022-01-10 13:40:30,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:30,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:30,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:30,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:30,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:30,816 INFO L87 Difference]: Start difference. First operand 3622 states and 6173 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:30,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:30,900 INFO L93 Difference]: Finished difference Result 5105 states and 8360 transitions. [2022-01-10 13:40:30,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:30,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:30,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:30,914 INFO L225 Difference]: With dead ends: 5105 [2022-01-10 13:40:30,914 INFO L226 Difference]: Without dead ends: 3622 [2022-01-10 13:40:30,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:30,924 INFO L933 BasicCegarLoop]: 5179 mSDtfsCounter, 5166 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5166 SdHoareTripleChecker+Valid, 5179 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:30,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5166 Valid, 5179 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:30,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2022-01-10 13:40:30,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3622. [2022-01-10 13:40:31,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 1.7030386740331491) internal successors, (6165), 3621 states have internal predecessors, (6165), 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) [2022-01-10 13:40:31,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 6165 transitions. [2022-01-10 13:40:31,016 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 6165 transitions. Word has length 110 [2022-01-10 13:40:31,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:31,016 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 6165 transitions. [2022-01-10 13:40:31,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:31,017 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 6165 transitions. [2022-01-10 13:40:31,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:31,018 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:31,018 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:31,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 13:40:31,018 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:31,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:31,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1667484114, now seen corresponding path program 1 times [2022-01-10 13:40:31,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:31,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117780615] [2022-01-10 13:40:31,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:31,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:31,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:31,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:31,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117780615] [2022-01-10 13:40:31,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117780615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:31,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:31,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:31,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530125901] [2022-01-10 13:40:31,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:31,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:31,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:31,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:31,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:31,099 INFO L87 Difference]: Start difference. First operand 3622 states and 6165 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:31,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:31,324 INFO L93 Difference]: Finished difference Result 5104 states and 8343 transitions. [2022-01-10 13:40:31,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:31,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:31,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:31,337 INFO L225 Difference]: With dead ends: 5104 [2022-01-10 13:40:31,337 INFO L226 Difference]: Without dead ends: 3622 [2022-01-10 13:40:31,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:31,340 INFO L933 BasicCegarLoop]: 5174 mSDtfsCounter, 5160 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5160 SdHoareTripleChecker+Valid, 5174 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:31,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5160 Valid, 5174 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:31,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2022-01-10 13:40:31,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3622. [2022-01-10 13:40:31,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 1.7008287292817679) internal successors, (6157), 3621 states have internal predecessors, (6157), 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) [2022-01-10 13:40:31,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 6157 transitions. [2022-01-10 13:40:31,448 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 6157 transitions. Word has length 110 [2022-01-10 13:40:31,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:31,451 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 6157 transitions. [2022-01-10 13:40:31,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:31,454 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 6157 transitions. [2022-01-10 13:40:31,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:31,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:31,455 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:31,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 13:40:31,456 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:31,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:31,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1688211982, now seen corresponding path program 1 times [2022-01-10 13:40:31,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:31,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136686341] [2022-01-10 13:40:31,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:31,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:31,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:31,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:31,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136686341] [2022-01-10 13:40:31,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136686341] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:31,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:31,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:31,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474111750] [2022-01-10 13:40:31,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:31,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:31,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:31,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:31,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:31,515 INFO L87 Difference]: Start difference. First operand 3622 states and 6157 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:31,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:31,604 INFO L93 Difference]: Finished difference Result 5103 states and 8326 transitions. [2022-01-10 13:40:31,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:31,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:31,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:31,619 INFO L225 Difference]: With dead ends: 5103 [2022-01-10 13:40:31,620 INFO L226 Difference]: Without dead ends: 3622 [2022-01-10 13:40:31,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:31,625 INFO L933 BasicCegarLoop]: 5169 mSDtfsCounter, 5154 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5154 SdHoareTripleChecker+Valid, 5169 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:31,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5154 Valid, 5169 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:31,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2022-01-10 13:40:31,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3622. [2022-01-10 13:40:31,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 1.6986187845303868) internal successors, (6149), 3621 states have internal predecessors, (6149), 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) [2022-01-10 13:40:31,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 6149 transitions. [2022-01-10 13:40:31,721 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 6149 transitions. Word has length 110 [2022-01-10 13:40:31,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:31,721 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 6149 transitions. [2022-01-10 13:40:31,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:31,722 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 6149 transitions. [2022-01-10 13:40:31,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:31,723 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:31,723 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:31,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 13:40:31,725 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:31,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:31,725 INFO L85 PathProgramCache]: Analyzing trace with hash 549534254, now seen corresponding path program 1 times [2022-01-10 13:40:31,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:31,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942523045] [2022-01-10 13:40:31,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:31,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:31,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:31,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942523045] [2022-01-10 13:40:31,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942523045] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:31,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:31,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:31,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149013369] [2022-01-10 13:40:31,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:31,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:31,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:31,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:31,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:31,787 INFO L87 Difference]: Start difference. First operand 3622 states and 6149 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:31,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:31,903 INFO L93 Difference]: Finished difference Result 5101 states and 8307 transitions. [2022-01-10 13:40:31,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:31,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:31,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:31,928 INFO L225 Difference]: With dead ends: 5101 [2022-01-10 13:40:31,928 INFO L226 Difference]: Without dead ends: 3622 [2022-01-10 13:40:31,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:31,934 INFO L933 BasicCegarLoop]: 5144 mSDtfsCounter, 5055 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5055 SdHoareTripleChecker+Valid, 5222 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:31,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5055 Valid, 5222 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:31,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2022-01-10 13:40:32,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3622. [2022-01-10 13:40:32,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 1.6914364640883979) internal successors, (6123), 3621 states have internal predecessors, (6123), 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) [2022-01-10 13:40:32,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 6123 transitions. [2022-01-10 13:40:32,033 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 6123 transitions. Word has length 110 [2022-01-10 13:40:32,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:32,034 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 6123 transitions. [2022-01-10 13:40:32,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:32,034 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 6123 transitions. [2022-01-10 13:40:32,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:32,035 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:32,035 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:32,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 13:40:32,035 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:32,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:32,036 INFO L85 PathProgramCache]: Analyzing trace with hash 108621773, now seen corresponding path program 1 times [2022-01-10 13:40:32,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:32,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225497169] [2022-01-10 13:40:32,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:32,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:32,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:32,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:32,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225497169] [2022-01-10 13:40:32,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225497169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:32,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:32,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:32,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298058859] [2022-01-10 13:40:32,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:32,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:32,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:32,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:32,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:32,077 INFO L87 Difference]: Start difference. First operand 3622 states and 6123 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:32,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:32,182 INFO L93 Difference]: Finished difference Result 5100 states and 8254 transitions. [2022-01-10 13:40:32,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:32,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:32,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:32,190 INFO L225 Difference]: With dead ends: 5100 [2022-01-10 13:40:32,190 INFO L226 Difference]: Without dead ends: 3622 [2022-01-10 13:40:32,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:32,194 INFO L933 BasicCegarLoop]: 5129 mSDtfsCounter, 5040 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5040 SdHoareTripleChecker+Valid, 5206 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:32,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5040 Valid, 5206 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:32,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2022-01-10 13:40:32,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3622. [2022-01-10 13:40:32,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 1.684254143646409) internal successors, (6097), 3621 states have internal predecessors, (6097), 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) [2022-01-10 13:40:32,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 6097 transitions. [2022-01-10 13:40:32,288 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 6097 transitions. Word has length 110 [2022-01-10 13:40:32,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:32,288 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 6097 transitions. [2022-01-10 13:40:32,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:32,289 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 6097 transitions. [2022-01-10 13:40:32,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:32,290 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:32,290 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:32,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 13:40:32,290 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:32,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:32,290 INFO L85 PathProgramCache]: Analyzing trace with hash -953709460, now seen corresponding path program 1 times [2022-01-10 13:40:32,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:32,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137292141] [2022-01-10 13:40:32,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:32,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:32,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:32,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:32,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137292141] [2022-01-10 13:40:32,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137292141] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:32,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:32,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:32,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32224143] [2022-01-10 13:40:32,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:32,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:32,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:32,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:32,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:32,325 INFO L87 Difference]: Start difference. First operand 3622 states and 6097 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:32,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:32,511 INFO L93 Difference]: Finished difference Result 5099 states and 8201 transitions. [2022-01-10 13:40:32,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:32,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:32,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:32,518 INFO L225 Difference]: With dead ends: 5099 [2022-01-10 13:40:32,518 INFO L226 Difference]: Without dead ends: 3622 [2022-01-10 13:40:32,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:32,521 INFO L933 BasicCegarLoop]: 5114 mSDtfsCounter, 5025 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5025 SdHoareTripleChecker+Valid, 5190 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:32,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5025 Valid, 5190 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:32,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2022-01-10 13:40:32,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3622. [2022-01-10 13:40:32,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 1.67707182320442) internal successors, (6071), 3621 states have internal predecessors, (6071), 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) [2022-01-10 13:40:32,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 6071 transitions. [2022-01-10 13:40:32,627 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 6071 transitions. Word has length 110 [2022-01-10 13:40:32,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:32,628 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 6071 transitions. [2022-01-10 13:40:32,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:32,628 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 6071 transitions. [2022-01-10 13:40:32,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:32,629 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:32,629 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:32,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 13:40:32,630 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:32,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:32,630 INFO L85 PathProgramCache]: Analyzing trace with hash -914206581, now seen corresponding path program 1 times [2022-01-10 13:40:32,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:32,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006993865] [2022-01-10 13:40:32,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:32,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:32,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:32,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:32,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006993865] [2022-01-10 13:40:32,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006993865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:32,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:32,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:32,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798386607] [2022-01-10 13:40:32,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:32,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:32,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:32,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:32,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:32,680 INFO L87 Difference]: Start difference. First operand 3622 states and 6071 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:32,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:32,809 INFO L93 Difference]: Finished difference Result 5098 states and 8148 transitions. [2022-01-10 13:40:32,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:32,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:32,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:32,816 INFO L225 Difference]: With dead ends: 5098 [2022-01-10 13:40:32,817 INFO L226 Difference]: Without dead ends: 3622 [2022-01-10 13:40:32,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:32,820 INFO L933 BasicCegarLoop]: 5099 mSDtfsCounter, 5010 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5010 SdHoareTripleChecker+Valid, 5174 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:32,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5010 Valid, 5174 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:32,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2022-01-10 13:40:32,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3622. [2022-01-10 13:40:32,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 1.669889502762431) internal successors, (6045), 3621 states have internal predecessors, (6045), 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) [2022-01-10 13:40:32,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 6045 transitions. [2022-01-10 13:40:32,927 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 6045 transitions. Word has length 110 [2022-01-10 13:40:32,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:32,927 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 6045 transitions. [2022-01-10 13:40:32,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:32,928 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 6045 transitions. [2022-01-10 13:40:32,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:32,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:32,929 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:32,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 13:40:32,930 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:32,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:32,930 INFO L85 PathProgramCache]: Analyzing trace with hash 797821866, now seen corresponding path program 1 times [2022-01-10 13:40:32,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:32,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550847829] [2022-01-10 13:40:32,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:32,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:32,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:32,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:32,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550847829] [2022-01-10 13:40:32,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550847829] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:32,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:32,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:32,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212316237] [2022-01-10 13:40:32,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:32,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:32,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:32,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:32,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:32,970 INFO L87 Difference]: Start difference. First operand 3622 states and 6045 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:33,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:33,096 INFO L93 Difference]: Finished difference Result 5097 states and 8095 transitions. [2022-01-10 13:40:33,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:33,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:33,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:33,104 INFO L225 Difference]: With dead ends: 5097 [2022-01-10 13:40:33,104 INFO L226 Difference]: Without dead ends: 3622 [2022-01-10 13:40:33,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:33,108 INFO L933 BasicCegarLoop]: 5084 mSDtfsCounter, 4995 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4995 SdHoareTripleChecker+Valid, 5158 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:33,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4995 Valid, 5158 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:33,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2022-01-10 13:40:33,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3622. [2022-01-10 13:40:33,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 1.662707182320442) internal successors, (6019), 3621 states have internal predecessors, (6019), 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) [2022-01-10 13:40:33,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 6019 transitions. [2022-01-10 13:40:33,222 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 6019 transitions. Word has length 110 [2022-01-10 13:40:33,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:33,222 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 6019 transitions. [2022-01-10 13:40:33,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:33,222 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 6019 transitions. [2022-01-10 13:40:33,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:33,224 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:33,224 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:33,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 13:40:33,224 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:33,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:33,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1564287415, now seen corresponding path program 1 times [2022-01-10 13:40:33,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:33,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704276546] [2022-01-10 13:40:33,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:33,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:33,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:33,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:33,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704276546] [2022-01-10 13:40:33,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704276546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:33,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:33,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:33,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292296564] [2022-01-10 13:40:33,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:33,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:33,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:33,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:33,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:33,268 INFO L87 Difference]: Start difference. First operand 3622 states and 6019 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:33,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:33,406 INFO L93 Difference]: Finished difference Result 5096 states and 8042 transitions. [2022-01-10 13:40:33,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:33,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:33,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:33,418 INFO L225 Difference]: With dead ends: 5096 [2022-01-10 13:40:33,418 INFO L226 Difference]: Without dead ends: 3622 [2022-01-10 13:40:33,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:33,421 INFO L933 BasicCegarLoop]: 5069 mSDtfsCounter, 4980 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4980 SdHoareTripleChecker+Valid, 5142 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:33,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4980 Valid, 5142 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:33,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2022-01-10 13:40:33,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3622. [2022-01-10 13:40:33,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 1.655524861878453) internal successors, (5993), 3621 states have internal predecessors, (5993), 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) [2022-01-10 13:40:33,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 5993 transitions. [2022-01-10 13:40:33,534 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 5993 transitions. Word has length 110 [2022-01-10 13:40:33,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:33,535 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 5993 transitions. [2022-01-10 13:40:33,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:33,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 5993 transitions. [2022-01-10 13:40:33,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:33,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:33,537 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:33,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 13:40:33,537 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:33,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:33,538 INFO L85 PathProgramCache]: Analyzing trace with hash -2115012632, now seen corresponding path program 1 times [2022-01-10 13:40:33,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:33,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122223827] [2022-01-10 13:40:33,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:33,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:33,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:33,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:33,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122223827] [2022-01-10 13:40:33,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122223827] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:33,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:33,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:33,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275714054] [2022-01-10 13:40:33,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:33,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:33,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:33,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:33,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:33,584 INFO L87 Difference]: Start difference. First operand 3622 states and 5993 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:33,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:33,710 INFO L93 Difference]: Finished difference Result 5095 states and 7989 transitions. [2022-01-10 13:40:33,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:33,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:33,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:33,717 INFO L225 Difference]: With dead ends: 5095 [2022-01-10 13:40:33,717 INFO L226 Difference]: Without dead ends: 3622 [2022-01-10 13:40:33,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:33,722 INFO L933 BasicCegarLoop]: 5054 mSDtfsCounter, 4965 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4965 SdHoareTripleChecker+Valid, 5126 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:33,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4965 Valid, 5126 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:33,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2022-01-10 13:40:33,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3622. [2022-01-10 13:40:33,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 1.648342541436464) internal successors, (5967), 3621 states have internal predecessors, (5967), 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) [2022-01-10 13:40:33,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 5967 transitions. [2022-01-10 13:40:33,840 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 5967 transitions. Word has length 110 [2022-01-10 13:40:33,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:33,840 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 5967 transitions. [2022-01-10 13:40:33,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:33,841 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 5967 transitions. [2022-01-10 13:40:33,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:33,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:33,842 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:33,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 13:40:33,843 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:33,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:33,843 INFO L85 PathProgramCache]: Analyzing trace with hash -178874105, now seen corresponding path program 1 times [2022-01-10 13:40:33,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:33,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53046995] [2022-01-10 13:40:33,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:33,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:33,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:33,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:33,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53046995] [2022-01-10 13:40:33,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53046995] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:33,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:33,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:33,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119598380] [2022-01-10 13:40:33,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:33,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:33,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:33,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:33,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:33,885 INFO L87 Difference]: Start difference. First operand 3622 states and 5967 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:34,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:34,022 INFO L93 Difference]: Finished difference Result 5094 states and 7936 transitions. [2022-01-10 13:40:34,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:34,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:34,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:34,029 INFO L225 Difference]: With dead ends: 5094 [2022-01-10 13:40:34,029 INFO L226 Difference]: Without dead ends: 3622 [2022-01-10 13:40:34,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:34,034 INFO L933 BasicCegarLoop]: 5039 mSDtfsCounter, 4950 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4950 SdHoareTripleChecker+Valid, 5110 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:34,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4950 Valid, 5110 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:34,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2022-01-10 13:40:34,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3622. [2022-01-10 13:40:34,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 1.6411602209944751) internal successors, (5941), 3621 states have internal predecessors, (5941), 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) [2022-01-10 13:40:34,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 5941 transitions. [2022-01-10 13:40:34,161 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 5941 transitions. Word has length 110 [2022-01-10 13:40:34,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:34,161 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 5941 transitions. [2022-01-10 13:40:34,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:34,161 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 5941 transitions. [2022-01-10 13:40:34,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:34,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:34,163 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:34,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 13:40:34,163 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:34,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:34,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1282928346, now seen corresponding path program 1 times [2022-01-10 13:40:34,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:34,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627625041] [2022-01-10 13:40:34,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:34,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:34,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:34,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:34,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627625041] [2022-01-10 13:40:34,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627625041] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:34,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:34,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:40:34,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993509621] [2022-01-10 13:40:34,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:34,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:40:34,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:34,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:40:34,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:40:34,265 INFO L87 Difference]: Start difference. First operand 3622 states and 5941 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2022-01-10 13:40:34,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:34,565 INFO L93 Difference]: Finished difference Result 5776 states and 8827 transitions. [2022-01-10 13:40:34,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:40:34,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:34,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:34,574 INFO L225 Difference]: With dead ends: 5776 [2022-01-10 13:40:34,574 INFO L226 Difference]: Without dead ends: 4318 [2022-01-10 13:40:34,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 13:40:34,577 INFO L933 BasicCegarLoop]: 5128 mSDtfsCounter, 2950 mSDsluCounter, 13365 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2950 SdHoareTripleChecker+Valid, 18493 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:34,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2950 Valid, 18493 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:40:34,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4318 states. [2022-01-10 13:40:34,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4318 to 3628. [2022-01-10 13:40:34,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3628 states, 3626 states have (on average 1.635135135135135) internal successors, (5929), 3627 states have internal predecessors, (5929), 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) [2022-01-10 13:40:34,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3628 states to 3628 states and 5929 transitions. [2022-01-10 13:40:34,717 INFO L78 Accepts]: Start accepts. Automaton has 3628 states and 5929 transitions. Word has length 110 [2022-01-10 13:40:34,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:34,717 INFO L470 AbstractCegarLoop]: Abstraction has 3628 states and 5929 transitions. [2022-01-10 13:40:34,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2022-01-10 13:40:34,718 INFO L276 IsEmpty]: Start isEmpty. Operand 3628 states and 5929 transitions. [2022-01-10 13:40:34,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:34,719 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:34,719 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:34,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 13:40:34,719 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:34,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:34,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1529241433, now seen corresponding path program 1 times [2022-01-10 13:40:34,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:34,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057588315] [2022-01-10 13:40:34,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:34,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:34,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:34,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:34,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057588315] [2022-01-10 13:40:34,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057588315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:34,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:34,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:40:34,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67633513] [2022-01-10 13:40:34,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:34,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:40:34,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:34,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:40:34,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:40:34,775 INFO L87 Difference]: Start difference. First operand 3628 states and 5929 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2022-01-10 13:40:35,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:35,109 INFO L93 Difference]: Finished difference Result 6245 states and 9385 transitions. [2022-01-10 13:40:35,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:40:35,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:35,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:35,118 INFO L225 Difference]: With dead ends: 6245 [2022-01-10 13:40:35,118 INFO L226 Difference]: Without dead ends: 4816 [2022-01-10 13:40:35,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 13:40:35,123 INFO L933 BasicCegarLoop]: 5026 mSDtfsCounter, 2342 mSDsluCounter, 14517 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2342 SdHoareTripleChecker+Valid, 19543 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:35,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2342 Valid, 19543 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:40:35,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4816 states. [2022-01-10 13:40:35,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4816 to 3634. [2022-01-10 13:40:35,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3632 states have (on average 1.6291299559471366) internal successors, (5917), 3633 states have internal predecessors, (5917), 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) [2022-01-10 13:40:35,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 5917 transitions. [2022-01-10 13:40:35,275 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 5917 transitions. Word has length 110 [2022-01-10 13:40:35,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:35,275 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 5917 transitions. [2022-01-10 13:40:35,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2022-01-10 13:40:35,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 5917 transitions. [2022-01-10 13:40:35,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:35,276 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:35,276 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:35,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 13:40:35,277 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:35,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:35,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1843042280, now seen corresponding path program 1 times [2022-01-10 13:40:35,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:35,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107194628] [2022-01-10 13:40:35,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:35,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:35,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:35,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:35,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107194628] [2022-01-10 13:40:35,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107194628] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:35,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:35,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:40:35,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297749646] [2022-01-10 13:40:35,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:35,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:40:35,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:35,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:40:35,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:40:35,342 INFO L87 Difference]: Start difference. First operand 3634 states and 5917 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2022-01-10 13:40:35,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:35,685 INFO L93 Difference]: Finished difference Result 6354 states and 9471 transitions. [2022-01-10 13:40:35,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:40:35,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:35,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:35,694 INFO L225 Difference]: With dead ends: 6354 [2022-01-10 13:40:35,694 INFO L226 Difference]: Without dead ends: 4926 [2022-01-10 13:40:35,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 13:40:35,699 INFO L933 BasicCegarLoop]: 4998 mSDtfsCounter, 2206 mSDsluCounter, 14726 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2206 SdHoareTripleChecker+Valid, 19724 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:35,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2206 Valid, 19724 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:40:35,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4926 states. [2022-01-10 13:40:35,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4926 to 3640. [2022-01-10 13:40:35,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 3638 states have (on average 1.6231445849367785) internal successors, (5905), 3639 states have internal predecessors, (5905), 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) [2022-01-10 13:40:35,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 5905 transitions. [2022-01-10 13:40:35,866 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 5905 transitions. Word has length 110 [2022-01-10 13:40:35,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:35,866 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 5905 transitions. [2022-01-10 13:40:35,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2022-01-10 13:40:35,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 5905 transitions. [2022-01-10 13:40:35,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:35,867 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:35,868 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:35,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 13:40:35,868 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:35,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:35,868 INFO L85 PathProgramCache]: Analyzing trace with hash -340634647, now seen corresponding path program 1 times [2022-01-10 13:40:35,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:35,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770084438] [2022-01-10 13:40:35,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:35,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:35,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:35,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:35,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770084438] [2022-01-10 13:40:35,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770084438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:35,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:35,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:35,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421997001] [2022-01-10 13:40:35,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:35,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:35,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:35,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:35,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:35,923 INFO L87 Difference]: Start difference. First operand 3640 states and 5905 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:36,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:36,101 INFO L93 Difference]: Finished difference Result 5142 states and 7826 transitions. [2022-01-10 13:40:36,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:36,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:36,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:36,110 INFO L225 Difference]: With dead ends: 5142 [2022-01-10 13:40:36,110 INFO L226 Difference]: Without dead ends: 3640 [2022-01-10 13:40:36,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:36,115 INFO L933 BasicCegarLoop]: 5014 mSDtfsCounter, 4937 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4937 SdHoareTripleChecker+Valid, 5014 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:36,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4937 Valid, 5014 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:36,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3640 states. [2022-01-10 13:40:36,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3640 to 3640. [2022-01-10 13:40:36,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 3638 states have (on average 1.620945574491479) internal successors, (5897), 3639 states have internal predecessors, (5897), 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) [2022-01-10 13:40:36,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 5897 transitions. [2022-01-10 13:40:36,302 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 5897 transitions. Word has length 110 [2022-01-10 13:40:36,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:36,302 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 5897 transitions. [2022-01-10 13:40:36,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:36,303 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 5897 transitions. [2022-01-10 13:40:36,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:36,304 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:36,304 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:36,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 13:40:36,304 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:36,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:36,305 INFO L85 PathProgramCache]: Analyzing trace with hash -595371192, now seen corresponding path program 1 times [2022-01-10 13:40:36,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:36,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172668337] [2022-01-10 13:40:36,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:36,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:36,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:36,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:36,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172668337] [2022-01-10 13:40:36,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172668337] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:36,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:36,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:36,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874570122] [2022-01-10 13:40:36,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:36,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:36,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:36,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:36,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:36,384 INFO L87 Difference]: Start difference. First operand 3640 states and 5897 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:36,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:36,537 INFO L93 Difference]: Finished difference Result 5138 states and 7806 transitions. [2022-01-10 13:40:36,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:36,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:36,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:36,545 INFO L225 Difference]: With dead ends: 5138 [2022-01-10 13:40:36,546 INFO L226 Difference]: Without dead ends: 3640 [2022-01-10 13:40:36,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:36,550 INFO L933 BasicCegarLoop]: 5009 mSDtfsCounter, 4928 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4928 SdHoareTripleChecker+Valid, 5009 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:36,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4928 Valid, 5009 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:36,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3640 states. [2022-01-10 13:40:36,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3640 to 3640. [2022-01-10 13:40:36,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 3638 states have (on average 1.6187465640461791) internal successors, (5889), 3639 states have internal predecessors, (5889), 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) [2022-01-10 13:40:36,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 5889 transitions. [2022-01-10 13:40:36,706 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 5889 transitions. Word has length 110 [2022-01-10 13:40:36,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:36,706 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 5889 transitions. [2022-01-10 13:40:36,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:36,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 5889 transitions. [2022-01-10 13:40:36,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:36,707 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:36,707 INFO L514 BasicCegarLoop]: 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] [2022-01-10 13:40:36,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 13:40:36,708 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:36,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:36,708 INFO L85 PathProgramCache]: Analyzing trace with hash -662377945, now seen corresponding path program 1 times [2022-01-10 13:40:36,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:36,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891396870] [2022-01-10 13:40:36,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:36,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:36,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:36,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:36,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891396870] [2022-01-10 13:40:36,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891396870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:36,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:36,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:36,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186859795] [2022-01-10 13:40:36,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:36,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:36,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:36,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:36,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:36,756 INFO L87 Difference]: Start difference. First operand 3640 states and 5889 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:37,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:37,066 INFO L93 Difference]: Finished difference Result 6516 states and 9554 transitions. [2022-01-10 13:40:37,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:37,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 13:40:37,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:37,076 INFO L225 Difference]: With dead ends: 6516 [2022-01-10 13:40:37,076 INFO L226 Difference]: Without dead ends: 5028 [2022-01-10 13:40:37,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:37,080 INFO L933 BasicCegarLoop]: 5000 mSDtfsCounter, 4877 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4877 SdHoareTripleChecker+Valid, 5907 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:37,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4877 Valid, 5907 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:37,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5028 states. [2022-01-10 13:40:37,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5028 to 4912. [2022-01-10 13:40:37,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4912 states, 4910 states have (on average 1.5268839103869654) internal successors, (7497), 4911 states have internal predecessors, (7497), 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) [2022-01-10 13:40:37,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4912 states to 4912 states and 7497 transitions. [2022-01-10 13:40:37,338 INFO L78 Accepts]: Start accepts. Automaton has 4912 states and 7497 transitions. Word has length 110 [2022-01-10 13:40:37,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:37,338 INFO L470 AbstractCegarLoop]: Abstraction has 4912 states and 7497 transitions. [2022-01-10 13:40:37,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-01-10 13:40:37,338 INFO L276 IsEmpty]: Start isEmpty. Operand 4912 states and 7497 transitions. [2022-01-10 13:40:37,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-10 13:40:37,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:37,342 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:37,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 13:40:37,342 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:37,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:37,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1294335533, now seen corresponding path program 1 times [2022-01-10 13:40:37,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:37,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405577743] [2022-01-10 13:40:37,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:37,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:37,408 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:37,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:37,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405577743] [2022-01-10 13:40:37,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405577743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:37,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:37,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:40:37,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856413603] [2022-01-10 13:40:37,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:37,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:37,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:37,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:37,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:37,411 INFO L87 Difference]: Start difference. First operand 4912 states and 7497 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2022-01-10 13:40:37,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:37,894 INFO L93 Difference]: Finished difference Result 10274 states and 14311 transitions. [2022-01-10 13:40:37,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:37,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2022-01-10 13:40:37,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:37,910 INFO L225 Difference]: With dead ends: 10274 [2022-01-10 13:40:37,910 INFO L226 Difference]: Without dead ends: 7520 [2022-01-10 13:40:37,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:37,915 INFO L933 BasicCegarLoop]: 4997 mSDtfsCounter, 4895 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4895 SdHoareTripleChecker+Valid, 5904 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:37,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4895 Valid, 5904 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:37,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7520 states. [2022-01-10 13:40:38,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7520 to 7318. [2022-01-10 13:40:38,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7318 states, 7316 states have (on average 1.4402679059595407) internal successors, (10537), 7317 states have internal predecessors, (10537), 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) [2022-01-10 13:40:38,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7318 states to 7318 states and 10537 transitions. [2022-01-10 13:40:38,293 INFO L78 Accepts]: Start accepts. Automaton has 7318 states and 10537 transitions. Word has length 178 [2022-01-10 13:40:38,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:38,293 INFO L470 AbstractCegarLoop]: Abstraction has 7318 states and 10537 transitions. [2022-01-10 13:40:38,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2022-01-10 13:40:38,293 INFO L276 IsEmpty]: Start isEmpty. Operand 7318 states and 10537 transitions. [2022-01-10 13:40:38,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-10 13:40:38,297 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:38,298 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:38,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 13:40:38,298 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:38,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:38,298 INFO L85 PathProgramCache]: Analyzing trace with hash 2045259373, now seen corresponding path program 1 times [2022-01-10 13:40:38,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:38,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637126086] [2022-01-10 13:40:38,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:38,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:38,363 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:38,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:38,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637126086] [2022-01-10 13:40:38,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637126086] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:38,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:38,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:40:38,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951330769] [2022-01-10 13:40:38,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:38,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:38,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:38,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:38,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:38,365 INFO L87 Difference]: Start difference. First operand 7318 states and 10537 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2022-01-10 13:40:39,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:39,247 INFO L93 Difference]: Finished difference Result 17195 states and 22939 transitions. [2022-01-10 13:40:39,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:39,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2022-01-10 13:40:39,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:39,269 INFO L225 Difference]: With dead ends: 17195 [2022-01-10 13:40:39,269 INFO L226 Difference]: Without dead ends: 12099 [2022-01-10 13:40:39,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:39,280 INFO L933 BasicCegarLoop]: 5526 mSDtfsCounter, 4734 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4734 SdHoareTripleChecker+Valid, 6558 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:39,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4734 Valid, 6558 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:39,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12099 states. [2022-01-10 13:40:39,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12099 to 12097. [2022-01-10 13:40:39,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12097 states, 12095 states have (on average 1.3598181066556427) internal successors, (16447), 12096 states have internal predecessors, (16447), 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) [2022-01-10 13:40:39,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12097 states to 12097 states and 16447 transitions. [2022-01-10 13:40:39,934 INFO L78 Accepts]: Start accepts. Automaton has 12097 states and 16447 transitions. Word has length 178 [2022-01-10 13:40:39,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:39,935 INFO L470 AbstractCegarLoop]: Abstraction has 12097 states and 16447 transitions. [2022-01-10 13:40:39,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2022-01-10 13:40:39,935 INFO L276 IsEmpty]: Start isEmpty. Operand 12097 states and 16447 transitions. [2022-01-10 13:40:39,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-10 13:40:39,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:39,943 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:39,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 13:40:39,944 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:39,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:39,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1361029068, now seen corresponding path program 1 times [2022-01-10 13:40:39,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:39,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375490142] [2022-01-10 13:40:39,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:39,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:39,980 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:40:39,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:39,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375490142] [2022-01-10 13:40:39,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375490142] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:39,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:39,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:40:39,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294167650] [2022-01-10 13:40:39,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:39,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:39,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:39,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:39,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:39,983 INFO L87 Difference]: Start difference. First operand 12097 states and 16447 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2022-01-10 13:40:40,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:40,636 INFO L93 Difference]: Finished difference Result 21877 states and 28704 transitions. [2022-01-10 13:40:40,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:40,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2022-01-10 13:40:40,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:40,656 INFO L225 Difference]: With dead ends: 21877 [2022-01-10 13:40:40,656 INFO L226 Difference]: Without dead ends: 12002 [2022-01-10 13:40:40,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:40,671 INFO L933 BasicCegarLoop]: 5008 mSDtfsCounter, 1046 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 8966 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:40,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1046 Valid, 8966 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:40,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12002 states. [2022-01-10 13:40:41,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12002 to 12002. [2022-01-10 13:40:41,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12002 states, 12000 states have (on average 1.3611666666666666) internal successors, (16334), 12001 states have internal predecessors, (16334), 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) [2022-01-10 13:40:41,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12002 states to 12002 states and 16334 transitions. [2022-01-10 13:40:41,307 INFO L78 Accepts]: Start accepts. Automaton has 12002 states and 16334 transitions. Word has length 178 [2022-01-10 13:40:41,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:41,307 INFO L470 AbstractCegarLoop]: Abstraction has 12002 states and 16334 transitions. [2022-01-10 13:40:41,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2022-01-10 13:40:41,307 INFO L276 IsEmpty]: Start isEmpty. Operand 12002 states and 16334 transitions. [2022-01-10 13:40:41,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 13:40:41,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:41,314 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:41,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 13:40:41,314 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:41,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:41,315 INFO L85 PathProgramCache]: Analyzing trace with hash -788170566, now seen corresponding path program 1 times [2022-01-10 13:40:41,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:41,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610337549] [2022-01-10 13:40:41,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:41,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:41,368 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:41,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:41,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610337549] [2022-01-10 13:40:41,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610337549] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:41,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:41,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:40:41,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077143693] [2022-01-10 13:40:41,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:41,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:41,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:41,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:41,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:41,370 INFO L87 Difference]: Start difference. First operand 12002 states and 16334 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2022-01-10 13:40:42,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:42,476 INFO L93 Difference]: Finished difference Result 31152 states and 40222 transitions. [2022-01-10 13:40:42,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:42,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2022-01-10 13:40:42,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:42,512 INFO L225 Difference]: With dead ends: 31152 [2022-01-10 13:40:42,512 INFO L226 Difference]: Without dead ends: 21372 [2022-01-10 13:40:42,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:42,533 INFO L933 BasicCegarLoop]: 5240 mSDtfsCounter, 4893 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4893 SdHoareTripleChecker+Valid, 6260 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:42,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4893 Valid, 6260 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:42,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21372 states. [2022-01-10 13:40:43,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21372 to 20746. [2022-01-10 13:40:43,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20746 states, 20744 states have (on average 1.309101426918627) internal successors, (27156), 20745 states have internal predecessors, (27156), 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) [2022-01-10 13:40:43,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20746 states to 20746 states and 27156 transitions. [2022-01-10 13:40:43,701 INFO L78 Accepts]: Start accepts. Automaton has 20746 states and 27156 transitions. Word has length 179 [2022-01-10 13:40:43,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:43,702 INFO L470 AbstractCegarLoop]: Abstraction has 20746 states and 27156 transitions. [2022-01-10 13:40:43,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2022-01-10 13:40:43,702 INFO L276 IsEmpty]: Start isEmpty. Operand 20746 states and 27156 transitions. [2022-01-10 13:40:43,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 13:40:43,714 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:43,714 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:43,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 13:40:43,715 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:43,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:43,715 INFO L85 PathProgramCache]: Analyzing trace with hash -889981673, now seen corresponding path program 1 times [2022-01-10 13:40:43,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:43,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352290066] [2022-01-10 13:40:43,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:43,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:43,751 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:40:43,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:43,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352290066] [2022-01-10 13:40:43,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352290066] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:43,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:43,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:40:43,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72340173] [2022-01-10 13:40:43,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:43,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:43,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:43,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:43,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:43,753 INFO L87 Difference]: Start difference. First operand 20746 states and 27156 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2022-01-10 13:40:44,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:44,912 INFO L93 Difference]: Finished difference Result 39229 states and 50186 transitions. [2022-01-10 13:40:44,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:44,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2022-01-10 13:40:44,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:44,942 INFO L225 Difference]: With dead ends: 39229 [2022-01-10 13:40:44,942 INFO L226 Difference]: Without dead ends: 20652 [2022-01-10 13:40:44,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:44,973 INFO L933 BasicCegarLoop]: 5007 mSDtfsCounter, 1044 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 8965 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:44,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1044 Valid, 8965 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:44,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20652 states. [2022-01-10 13:40:46,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20652 to 20652. [2022-01-10 13:40:46,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20652 states, 20650 states have (on average 1.309685230024213) internal successors, (27045), 20651 states have internal predecessors, (27045), 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) [2022-01-10 13:40:46,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20652 states to 20652 states and 27045 transitions. [2022-01-10 13:40:46,282 INFO L78 Accepts]: Start accepts. Automaton has 20652 states and 27045 transitions. Word has length 179 [2022-01-10 13:40:46,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:46,283 INFO L470 AbstractCegarLoop]: Abstraction has 20652 states and 27045 transitions. [2022-01-10 13:40:46,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2022-01-10 13:40:46,283 INFO L276 IsEmpty]: Start isEmpty. Operand 20652 states and 27045 transitions. [2022-01-10 13:40:46,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-10 13:40:46,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:46,291 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:46,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 13:40:46,292 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:46,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:46,292 INFO L85 PathProgramCache]: Analyzing trace with hash 546157628, now seen corresponding path program 1 times [2022-01-10 13:40:46,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:46,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627486041] [2022-01-10 13:40:46,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:46,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:46,343 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:46,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:46,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627486041] [2022-01-10 13:40:46,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627486041] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:46,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:46,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:40:46,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896593453] [2022-01-10 13:40:46,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:46,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:46,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:46,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:46,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:46,344 INFO L87 Difference]: Start difference. First operand 20652 states and 27045 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2022-01-10 13:40:48,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:48,319 INFO L93 Difference]: Finished difference Result 56517 states and 71619 transitions. [2022-01-10 13:40:48,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:48,323 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2022-01-10 13:40:48,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:48,514 INFO L225 Difference]: With dead ends: 56517 [2022-01-10 13:40:48,514 INFO L226 Difference]: Without dead ends: 38087 [2022-01-10 13:40:48,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:48,527 INFO L933 BasicCegarLoop]: 5287 mSDtfsCounter, 4893 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4893 SdHoareTripleChecker+Valid, 6305 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:48,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4893 Valid, 6305 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:48,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38087 states. [2022-01-10 13:40:50,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38087 to 37061. [2022-01-10 13:40:50,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37061 states, 37059 states have (on average 1.2775574084567851) internal successors, (47345), 37060 states have internal predecessors, (47345), 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) [2022-01-10 13:40:50,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37061 states to 37061 states and 47345 transitions. [2022-01-10 13:40:50,607 INFO L78 Accepts]: Start accepts. Automaton has 37061 states and 47345 transitions. Word has length 180 [2022-01-10 13:40:50,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:50,608 INFO L470 AbstractCegarLoop]: Abstraction has 37061 states and 47345 transitions. [2022-01-10 13:40:50,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2022-01-10 13:40:50,608 INFO L276 IsEmpty]: Start isEmpty. Operand 37061 states and 47345 transitions. [2022-01-10 13:40:50,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-10 13:40:50,624 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:50,625 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:50,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 13:40:50,625 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:50,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:50,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1784398813, now seen corresponding path program 1 times [2022-01-10 13:40:50,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:50,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671224230] [2022-01-10 13:40:50,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:50,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:50,661 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:40:50,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:50,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671224230] [2022-01-10 13:40:50,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671224230] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:50,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:50,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:40:50,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345595708] [2022-01-10 13:40:50,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:50,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:50,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:50,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:50,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:50,663 INFO L87 Difference]: Start difference. First operand 37061 states and 47345 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2022-01-10 13:40:53,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:53,053 INFO L93 Difference]: Finished difference Result 71853 states and 90558 transitions. [2022-01-10 13:40:53,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:53,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2022-01-10 13:40:53,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:53,099 INFO L225 Difference]: With dead ends: 71853 [2022-01-10 13:40:53,099 INFO L226 Difference]: Without dead ends: 36968 [2022-01-10 13:40:53,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:53,130 INFO L933 BasicCegarLoop]: 5006 mSDtfsCounter, 1042 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 8964 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:53,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1042 Valid, 8964 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:53,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36968 states. [2022-01-10 13:40:55,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36968 to 36968. [2022-01-10 13:40:55,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36968 states, 36966 states have (on average 1.2778228642536384) internal successors, (47236), 36967 states have internal predecessors, (47236), 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) [2022-01-10 13:40:55,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36968 states to 36968 states and 47236 transitions. [2022-01-10 13:40:55,516 INFO L78 Accepts]: Start accepts. Automaton has 36968 states and 47236 transitions. Word has length 180 [2022-01-10 13:40:55,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:55,516 INFO L470 AbstractCegarLoop]: Abstraction has 36968 states and 47236 transitions. [2022-01-10 13:40:55,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2022-01-10 13:40:55,516 INFO L276 IsEmpty]: Start isEmpty. Operand 36968 states and 47236 transitions. [2022-01-10 13:40:55,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 13:40:55,528 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:55,529 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:55,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 13:40:55,529 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:55,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:55,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1584495378, now seen corresponding path program 1 times [2022-01-10 13:40:55,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:55,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640114685] [2022-01-10 13:40:55,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:55,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:55,598 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:55,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:55,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640114685] [2022-01-10 13:40:55,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640114685] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:55,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:55,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:40:55,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305858582] [2022-01-10 13:40:55,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:55,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:55,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:55,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:55,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:55,600 INFO L87 Difference]: Start difference. First operand 36968 states and 47236 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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) [2022-01-10 13:40:59,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:59,796 INFO L93 Difference]: Finished difference Result 104048 states and 130384 transitions. [2022-01-10 13:40:59,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:59,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 13:40:59,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:59,892 INFO L225 Difference]: With dead ends: 104048 [2022-01-10 13:40:59,892 INFO L226 Difference]: Without dead ends: 69302 [2022-01-10 13:40:59,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:59,918 INFO L933 BasicCegarLoop]: 5271 mSDtfsCounter, 4893 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4893 SdHoareTripleChecker+Valid, 6287 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:59,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4893 Valid, 6287 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:59,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69302 states. [2022-01-10 13:41:04,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69302 to 67700. [2022-01-10 13:41:04,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67700 states, 67698 states have (on average 1.2587373334515053) internal successors, (85214), 67699 states have internal predecessors, (85214), 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) [2022-01-10 13:41:04,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67700 states to 67700 states and 85214 transitions. [2022-01-10 13:41:04,331 INFO L78 Accepts]: Start accepts. Automaton has 67700 states and 85214 transitions. Word has length 181 [2022-01-10 13:41:04,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:41:04,332 INFO L470 AbstractCegarLoop]: Abstraction has 67700 states and 85214 transitions. [2022-01-10 13:41:04,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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) [2022-01-10 13:41:04,332 INFO L276 IsEmpty]: Start isEmpty. Operand 67700 states and 85214 transitions. [2022-01-10 13:41:04,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 13:41:04,354 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:41:04,354 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:41:04,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 13:41:04,354 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:41:04,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:41:04,355 INFO L85 PathProgramCache]: Analyzing trace with hash 2123826891, now seen corresponding path program 1 times [2022-01-10 13:41:04,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:41:04,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984344714] [2022-01-10 13:41:04,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:41:04,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:41:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:41:04,396 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:41:04,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:41:04,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984344714] [2022-01-10 13:41:04,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984344714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:41:04,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:41:04,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:41:04,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238407518] [2022-01-10 13:41:04,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:41:04,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:41:04,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:41:04,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:41:04,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:41:04,398 INFO L87 Difference]: Start difference. First operand 67700 states and 85214 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2022-01-10 13:41:08,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:41:08,773 INFO L93 Difference]: Finished difference Result 133125 states and 166290 transitions. [2022-01-10 13:41:08,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:41:08,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 13:41:08,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:41:08,885 INFO L225 Difference]: With dead ends: 133125 [2022-01-10 13:41:08,885 INFO L226 Difference]: Without dead ends: 67608 [2022-01-10 13:41:08,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:41:08,935 INFO L933 BasicCegarLoop]: 5005 mSDtfsCounter, 1040 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 8963 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:41:08,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1040 Valid, 8963 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:41:09,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67608 states.