/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_LAZY.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.04.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 19:30:19,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 19:30:19,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 19:30:19,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 19:30:19,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 19:30:19,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 19:30:19,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 19:30:19,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 19:30:19,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 19:30:19,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 19:30:19,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 19:30:19,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 19:30:19,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 19:30:19,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 19:30:19,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 19:30:19,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 19:30:19,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 19:30:19,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 19:30:19,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 19:30:19,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 19:30:19,152 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 19:30:19,172 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 19:30:19,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 19:30:19,172 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 19:30:19,173 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 19:30:19,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 19:30:19,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 19:30:19,174 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 19:30:19,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 19:30:19,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 19:30:19,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 19:30:19,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 19:30:19,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 19:30:19,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 19:30:19,175 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 19:30:19,175 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 19:30:19,175 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 19:30:19,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 19:30:19,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 19:30:19,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 19:30:19,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 19:30:19,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 19:30:19,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:30:19,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 19:30:19,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 19:30:19,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 19:30:19,177 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 19:30:19,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 19:30:19,177 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 19:30:19,177 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 19:30:19,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 19:30:19,178 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 19:30:19,178 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 19:30:19,178 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 19:30:19,178 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 19:30:19,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 19:30:19,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 19:30:19,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 19:30:19,410 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 19:30:19,411 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 19:30:19,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.04.cil-2.c [2022-01-10 19:30:19,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0aaa87f83/ce68fdac005843218006d1f3417832d1/FLAGcd6def8c0 [2022-01-10 19:30:20,306 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 19:30:20,306 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.04.cil-2.c [2022-01-10 19:30:20,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0aaa87f83/ce68fdac005843218006d1f3417832d1/FLAGcd6def8c0 [2022-01-10 19:30:20,444 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0aaa87f83/ce68fdac005843218006d1f3417832d1 [2022-01-10 19:30:20,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 19:30:20,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 19:30:20,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 19:30:20,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 19:30:20,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 19:30:20,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:30:20" (1/1) ... [2022-01-10 19:30:20,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@781a23f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:20, skipping insertion in model container [2022-01-10 19:30:20,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:30:20" (1/1) ... [2022-01-10 19:30:20,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 19:30:20,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 19:30:22,150 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.04.cil-2.c[380323,380336] [2022-01-10 19:30:22,173 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.04.cil-2.c[383339,383352] [2022-01-10 19:30:22,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:30:22,369 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 19:30:23,174 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.04.cil-2.c[380323,380336] [2022-01-10 19:30:23,181 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.04.cil-2.c[383339,383352] [2022-01-10 19:30:23,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:30:23,258 INFO L208 MainTranslator]: Completed translation [2022-01-10 19:30:23,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:23 WrapperNode [2022-01-10 19:30:23,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 19:30:23,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 19:30:23,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 19:30:23,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 19:30:23,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:23" (1/1) ... [2022-01-10 19:30:23,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:23" (1/1) ... [2022-01-10 19:30:23,768 INFO L137 Inliner]: procedures = 53, calls = 54, calls flagged for inlining = 49, calls inlined = 88, statements flattened = 13409 [2022-01-10 19:30:23,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 19:30:23,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 19:30:23,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 19:30:23,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 19:30:23,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:23" (1/1) ... [2022-01-10 19:30:23,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:23" (1/1) ... [2022-01-10 19:30:23,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:23" (1/1) ... [2022-01-10 19:30:23,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:23" (1/1) ... [2022-01-10 19:30:24,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:23" (1/1) ... [2022-01-10 19:30:24,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:23" (1/1) ... [2022-01-10 19:30:24,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:23" (1/1) ... [2022-01-10 19:30:24,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 19:30:24,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 19:30:24,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 19:30:24,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 19:30:24,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:23" (1/1) ... [2022-01-10 19:30:24,191 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:30:24,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 19:30:24,212 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 19:30:24,227 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 19:30:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 19:30:24,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 19:30:24,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 19:30:24,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 19:30:24,413 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 19:30:24,414 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 19:30:32,123 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 19:30:32,151 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 19:30:32,151 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-01-10 19:30:32,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:30:32 BoogieIcfgContainer [2022-01-10 19:30:32,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 19:30:32,156 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 19:30:32,156 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 19:30:32,160 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 19:30:32,162 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:30:32" (1/1) ... [2022-01-10 19:30:33,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:30:33 BasicIcfg [2022-01-10 19:30:33,985 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 19:30:33,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 19:30:33,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 19:30:33,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 19:30:33,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:30:20" (1/4) ... [2022-01-10 19:30:33,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1813edda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:30:33, skipping insertion in model container [2022-01-10 19:30:33,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:23" (2/4) ... [2022-01-10 19:30:33,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1813edda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:30:33, skipping insertion in model container [2022-01-10 19:30:33,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:30:32" (3/4) ... [2022-01-10 19:30:33,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1813edda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 07:30:33, skipping insertion in model container [2022-01-10 19:30:33,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:30:33" (4/4) ... [2022-01-10 19:30:33,991 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.04.cil-2.cTransformedIcfg [2022-01-10 19:30:33,995 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 19:30:33,996 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 19:30:34,051 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 19:30:34,058 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 19:30:34,058 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 19:30:34,112 INFO L276 IsEmpty]: Start isEmpty. Operand has 2623 states, 2619 states have (on average 1.8163421153111874) internal successors, (4757), 2622 states have internal predecessors, (4757), 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 19:30:34,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 19:30:34,120 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:34,121 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] [2022-01-10 19:30:34,121 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:34,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:34,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1615525701, now seen corresponding path program 1 times [2022-01-10 19:30:34,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:34,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151593073] [2022-01-10 19:30:34,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:34,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:34,435 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 19:30:34,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:34,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151593073] [2022-01-10 19:30:34,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151593073] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:34,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:34,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:30:34,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304463892] [2022-01-10 19:30:34,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:34,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:34,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:34,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:34,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:34,479 INFO L87 Difference]: Start difference. First operand has 2623 states, 2619 states have (on average 1.8163421153111874) internal successors, (4757), 2622 states have internal predecessors, (4757), 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 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:34,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:34,923 INFO L93 Difference]: Finished difference Result 5567 states and 10005 transitions. [2022-01-10 19:30:34,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:34,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 77 [2022-01-10 19:30:34,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:34,946 INFO L225 Difference]: With dead ends: 5567 [2022-01-10 19:30:34,947 INFO L226 Difference]: Without dead ends: 2885 [2022-01-10 19:30:34,953 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 19:30:34,957 INFO L933 BasicCegarLoop]: 4670 mSDtfsCounter, 4607 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4607 SdHoareTripleChecker+Valid, 5212 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:30:34,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4607 Valid, 5212 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:30:34,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2022-01-10 19:30:35,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 2881. [2022-01-10 19:30:35,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2878 states have (on average 1.7699791521890202) internal successors, (5094), 2880 states have internal predecessors, (5094), 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 19:30:35,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 5094 transitions. [2022-01-10 19:30:35,102 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 5094 transitions. Word has length 77 [2022-01-10 19:30:35,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:35,103 INFO L470 AbstractCegarLoop]: Abstraction has 2881 states and 5094 transitions. [2022-01-10 19:30:35,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:35,104 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 5094 transitions. [2022-01-10 19:30:35,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 19:30:35,113 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:35,114 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] [2022-01-10 19:30:35,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 19:30:35,114 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:35,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:35,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1319816293, now seen corresponding path program 1 times [2022-01-10 19:30:35,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:35,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4590187] [2022-01-10 19:30:35,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:35,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:35,221 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 19:30:35,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:35,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4590187] [2022-01-10 19:30:35,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4590187] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:35,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:35,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:30:35,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619052251] [2022-01-10 19:30:35,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:35,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:35,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:35,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:35,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:35,225 INFO L87 Difference]: Start difference. First operand 2881 states and 5094 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:35,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:35,296 INFO L93 Difference]: Finished difference Result 3629 states and 6212 transitions. [2022-01-10 19:30:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:35,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 77 [2022-01-10 19:30:35,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:35,307 INFO L225 Difference]: With dead ends: 3629 [2022-01-10 19:30:35,308 INFO L226 Difference]: Without dead ends: 2881 [2022-01-10 19:30:35,311 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 19:30:35,312 INFO L933 BasicCegarLoop]: 4597 mSDtfsCounter, 4590 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4590 SdHoareTripleChecker+Valid, 4597 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 19:30:35,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4590 Valid, 4597 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:35,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2022-01-10 19:30:35,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2881. [2022-01-10 19:30:35,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2878 states have (on average 1.7671994440583738) internal successors, (5086), 2880 states have internal predecessors, (5086), 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 19:30:35,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 5086 transitions. [2022-01-10 19:30:35,382 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 5086 transitions. Word has length 77 [2022-01-10 19:30:35,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:35,383 INFO L470 AbstractCegarLoop]: Abstraction has 2881 states and 5086 transitions. [2022-01-10 19:30:35,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:35,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 5086 transitions. [2022-01-10 19:30:35,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 19:30:35,390 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:35,391 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] [2022-01-10 19:30:35,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 19:30:35,395 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:35,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:35,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1737764027, now seen corresponding path program 1 times [2022-01-10 19:30:35,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:35,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221287585] [2022-01-10 19:30:35,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:35,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:35,488 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 19:30:35,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:35,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221287585] [2022-01-10 19:30:35,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221287585] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:35,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:35,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:30:35,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303470768] [2022-01-10 19:30:35,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:35,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:35,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:35,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:35,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:35,491 INFO L87 Difference]: Start difference. First operand 2881 states and 5086 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:35,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:35,555 INFO L93 Difference]: Finished difference Result 3628 states and 6195 transitions. [2022-01-10 19:30:35,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:35,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 77 [2022-01-10 19:30:35,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:35,566 INFO L225 Difference]: With dead ends: 3628 [2022-01-10 19:30:35,566 INFO L226 Difference]: Without dead ends: 2881 [2022-01-10 19:30:35,572 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 19:30:35,575 INFO L933 BasicCegarLoop]: 4592 mSDtfsCounter, 4584 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4584 SdHoareTripleChecker+Valid, 4592 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 19:30:35,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4584 Valid, 4592 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:35,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2022-01-10 19:30:35,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2881. [2022-01-10 19:30:35,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2878 states have (on average 1.7644197359277276) internal successors, (5078), 2880 states have internal predecessors, (5078), 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 19:30:35,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 5078 transitions. [2022-01-10 19:30:35,638 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 5078 transitions. Word has length 77 [2022-01-10 19:30:35,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:35,640 INFO L470 AbstractCegarLoop]: Abstraction has 2881 states and 5078 transitions. [2022-01-10 19:30:35,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:35,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 5078 transitions. [2022-01-10 19:30:35,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 19:30:35,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:35,642 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] [2022-01-10 19:30:35,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 19:30:35,642 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:35,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:35,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1627287653, now seen corresponding path program 1 times [2022-01-10 19:30:35,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:35,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441873667] [2022-01-10 19:30:35,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:35,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:35,692 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 19:30:35,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:35,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441873667] [2022-01-10 19:30:35,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441873667] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:35,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:35,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:30:35,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355404184] [2022-01-10 19:30:35,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:35,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:35,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:35,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:35,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:35,695 INFO L87 Difference]: Start difference. First operand 2881 states and 5078 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:35,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:35,773 INFO L93 Difference]: Finished difference Result 3627 states and 6178 transitions. [2022-01-10 19:30:35,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:35,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 77 [2022-01-10 19:30:35,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:35,786 INFO L225 Difference]: With dead ends: 3627 [2022-01-10 19:30:35,786 INFO L226 Difference]: Without dead ends: 2881 [2022-01-10 19:30:35,790 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 19:30:35,795 INFO L933 BasicCegarLoop]: 4587 mSDtfsCounter, 4578 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4578 SdHoareTripleChecker+Valid, 4587 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 19:30:35,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4578 Valid, 4587 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:35,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2022-01-10 19:30:35,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2881. [2022-01-10 19:30:35,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2878 states have (on average 1.7616400277970814) internal successors, (5070), 2880 states have internal predecessors, (5070), 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 19:30:35,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 5070 transitions. [2022-01-10 19:30:35,866 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 5070 transitions. Word has length 77 [2022-01-10 19:30:35,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:35,866 INFO L470 AbstractCegarLoop]: Abstraction has 2881 states and 5070 transitions. [2022-01-10 19:30:35,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:35,867 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 5070 transitions. [2022-01-10 19:30:35,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 19:30:35,867 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:35,867 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] [2022-01-10 19:30:35,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 19:30:35,868 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:35,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:35,868 INFO L85 PathProgramCache]: Analyzing trace with hash -619466939, now seen corresponding path program 1 times [2022-01-10 19:30:35,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:35,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752545755] [2022-01-10 19:30:35,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:35,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:35,930 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 19:30:35,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:35,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752545755] [2022-01-10 19:30:35,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752545755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:35,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:35,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:30:35,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900514885] [2022-01-10 19:30:35,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:35,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:35,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:35,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:35,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:35,933 INFO L87 Difference]: Start difference. First operand 2881 states and 5070 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:36,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:36,002 INFO L93 Difference]: Finished difference Result 3626 states and 6161 transitions. [2022-01-10 19:30:36,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:36,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 77 [2022-01-10 19:30:36,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:36,013 INFO L225 Difference]: With dead ends: 3626 [2022-01-10 19:30:36,013 INFO L226 Difference]: Without dead ends: 2881 [2022-01-10 19:30:36,015 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 19:30:36,016 INFO L933 BasicCegarLoop]: 4582 mSDtfsCounter, 4572 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4572 SdHoareTripleChecker+Valid, 4582 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 19:30:36,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4572 Valid, 4582 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:36,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2022-01-10 19:30:36,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2881. [2022-01-10 19:30:36,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2878 states have (on average 1.758860319666435) internal successors, (5062), 2880 states have internal predecessors, (5062), 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 19:30:36,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 5062 transitions. [2022-01-10 19:30:36,087 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 5062 transitions. Word has length 77 [2022-01-10 19:30:36,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:36,090 INFO L470 AbstractCegarLoop]: Abstraction has 2881 states and 5062 transitions. [2022-01-10 19:30:36,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:36,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 5062 transitions. [2022-01-10 19:30:36,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 19:30:36,096 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:36,096 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] [2022-01-10 19:30:36,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 19:30:36,096 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:36,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:36,097 INFO L85 PathProgramCache]: Analyzing trace with hash 2079003749, now seen corresponding path program 1 times [2022-01-10 19:30:36,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:36,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890466622] [2022-01-10 19:30:36,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:36,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:36,144 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 19:30:36,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:36,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890466622] [2022-01-10 19:30:36,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890466622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:36,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:36,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:30:36,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119499958] [2022-01-10 19:30:36,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:36,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:36,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:36,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:36,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:36,146 INFO L87 Difference]: Start difference. First operand 2881 states and 5062 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:36,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:36,365 INFO L93 Difference]: Finished difference Result 3625 states and 6144 transitions. [2022-01-10 19:30:36,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:36,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 77 [2022-01-10 19:30:36,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:36,375 INFO L225 Difference]: With dead ends: 3625 [2022-01-10 19:30:36,376 INFO L226 Difference]: Without dead ends: 2881 [2022-01-10 19:30:36,377 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 19:30:36,377 INFO L933 BasicCegarLoop]: 4563 mSDtfsCounter, 4507 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4507 SdHoareTripleChecker+Valid, 4611 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:30:36,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4507 Valid, 4611 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:36,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2022-01-10 19:30:36,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2881. [2022-01-10 19:30:36,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2878 states have (on average 1.7519110493398193) internal successors, (5042), 2880 states have internal predecessors, (5042), 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 19:30:36,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 5042 transitions. [2022-01-10 19:30:36,462 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 5042 transitions. Word has length 77 [2022-01-10 19:30:36,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:36,462 INFO L470 AbstractCegarLoop]: Abstraction has 2881 states and 5042 transitions. [2022-01-10 19:30:36,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:36,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 5042 transitions. [2022-01-10 19:30:36,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 19:30:36,464 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:36,464 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] [2022-01-10 19:30:36,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 19:30:36,465 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:36,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:36,465 INFO L85 PathProgramCache]: Analyzing trace with hash 2072894916, now seen corresponding path program 1 times [2022-01-10 19:30:36,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:36,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866894973] [2022-01-10 19:30:36,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:36,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:36,509 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 19:30:36,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:36,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866894973] [2022-01-10 19:30:36,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866894973] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:36,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:36,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:30:36,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645192931] [2022-01-10 19:30:36,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:36,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:36,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:36,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:36,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:36,512 INFO L87 Difference]: Start difference. First operand 2881 states and 5042 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:36,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:36,592 INFO L93 Difference]: Finished difference Result 3624 states and 6103 transitions. [2022-01-10 19:30:36,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:36,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 77 [2022-01-10 19:30:36,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:36,604 INFO L225 Difference]: With dead ends: 3624 [2022-01-10 19:30:36,604 INFO L226 Difference]: Without dead ends: 2881 [2022-01-10 19:30:36,606 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 19:30:36,607 INFO L933 BasicCegarLoop]: 4551 mSDtfsCounter, 4495 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4495 SdHoareTripleChecker+Valid, 4598 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:30:36,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4495 Valid, 4598 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:36,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2022-01-10 19:30:36,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2881. [2022-01-10 19:30:36,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2878 states have (on average 1.7449617790132037) internal successors, (5022), 2880 states have internal predecessors, (5022), 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 19:30:36,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 5022 transitions. [2022-01-10 19:30:36,683 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 5022 transitions. Word has length 77 [2022-01-10 19:30:36,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:36,685 INFO L470 AbstractCegarLoop]: Abstraction has 2881 states and 5022 transitions. [2022-01-10 19:30:36,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:36,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 5022 transitions. [2022-01-10 19:30:36,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 19:30:36,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:36,686 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] [2022-01-10 19:30:36,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 19:30:36,686 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:36,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:36,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1034229597, now seen corresponding path program 1 times [2022-01-10 19:30:36,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:36,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317442833] [2022-01-10 19:30:36,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:36,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:36,720 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 19:30:36,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:36,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317442833] [2022-01-10 19:30:36,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317442833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:36,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:36,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:30:36,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095791533] [2022-01-10 19:30:36,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:36,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:36,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:36,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:36,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:36,722 INFO L87 Difference]: Start difference. First operand 2881 states and 5022 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:36,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:36,800 INFO L93 Difference]: Finished difference Result 3623 states and 6062 transitions. [2022-01-10 19:30:36,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:36,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 77 [2022-01-10 19:30:36,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:36,825 INFO L225 Difference]: With dead ends: 3623 [2022-01-10 19:30:36,825 INFO L226 Difference]: Without dead ends: 2881 [2022-01-10 19:30:36,827 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 19:30:36,827 INFO L933 BasicCegarLoop]: 4539 mSDtfsCounter, 4483 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4483 SdHoareTripleChecker+Valid, 4585 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:30:36,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4483 Valid, 4585 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:36,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2022-01-10 19:30:36,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2881. [2022-01-10 19:30:36,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2878 states have (on average 1.7380125086865879) internal successors, (5002), 2880 states have internal predecessors, (5002), 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 19:30:36,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 5002 transitions. [2022-01-10 19:30:36,892 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 5002 transitions. Word has length 77 [2022-01-10 19:30:36,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:36,892 INFO L470 AbstractCegarLoop]: Abstraction has 2881 states and 5002 transitions. [2022-01-10 19:30:36,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:36,892 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 5002 transitions. [2022-01-10 19:30:36,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 19:30:36,893 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:36,893 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] [2022-01-10 19:30:36,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 19:30:36,894 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:36,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:36,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1951502206, now seen corresponding path program 1 times [2022-01-10 19:30:36,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:36,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168749259] [2022-01-10 19:30:36,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:36,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:36,928 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 19:30:36,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:36,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168749259] [2022-01-10 19:30:36,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168749259] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:36,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:36,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:30:36,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620568898] [2022-01-10 19:30:36,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:36,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:36,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:36,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:36,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:36,930 INFO L87 Difference]: Start difference. First operand 2881 states and 5002 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:37,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:37,026 INFO L93 Difference]: Finished difference Result 3622 states and 6021 transitions. [2022-01-10 19:30:37,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:37,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 77 [2022-01-10 19:30:37,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:37,032 INFO L225 Difference]: With dead ends: 3622 [2022-01-10 19:30:37,032 INFO L226 Difference]: Without dead ends: 2881 [2022-01-10 19:30:37,034 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 19:30:37,036 INFO L933 BasicCegarLoop]: 4527 mSDtfsCounter, 4471 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4471 SdHoareTripleChecker+Valid, 4572 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:30:37,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4471 Valid, 4572 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:37,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2022-01-10 19:30:37,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2881. [2022-01-10 19:30:37,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2878 states have (on average 1.7310632383599722) internal successors, (4982), 2880 states have internal predecessors, (4982), 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 19:30:37,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 4982 transitions. [2022-01-10 19:30:37,115 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 4982 transitions. Word has length 77 [2022-01-10 19:30:37,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:37,115 INFO L470 AbstractCegarLoop]: Abstraction has 2881 states and 4982 transitions. [2022-01-10 19:30:37,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:37,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 4982 transitions. [2022-01-10 19:30:37,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 19:30:37,116 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:37,116 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] [2022-01-10 19:30:37,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 19:30:37,117 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:37,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:37,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1701554657, now seen corresponding path program 1 times [2022-01-10 19:30:37,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:37,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521641908] [2022-01-10 19:30:37,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:37,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:37,157 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 19:30:37,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:37,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521641908] [2022-01-10 19:30:37,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521641908] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:37,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:37,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:30:37,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113684550] [2022-01-10 19:30:37,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:37,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:37,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:37,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:37,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:37,159 INFO L87 Difference]: Start difference. First operand 2881 states and 4982 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:37,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:37,236 INFO L93 Difference]: Finished difference Result 3621 states and 5980 transitions. [2022-01-10 19:30:37,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:37,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 77 [2022-01-10 19:30:37,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:37,242 INFO L225 Difference]: With dead ends: 3621 [2022-01-10 19:30:37,242 INFO L226 Difference]: Without dead ends: 2881 [2022-01-10 19:30:37,244 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 19:30:37,244 INFO L933 BasicCegarLoop]: 4515 mSDtfsCounter, 4459 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4459 SdHoareTripleChecker+Valid, 4559 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:30:37,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4459 Valid, 4559 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:37,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2022-01-10 19:30:37,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2881. [2022-01-10 19:30:37,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2878 states have (on average 1.7241139680333566) internal successors, (4962), 2880 states have internal predecessors, (4962), 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 19:30:37,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 4962 transitions. [2022-01-10 19:30:37,316 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 4962 transitions. Word has length 77 [2022-01-10 19:30:37,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:37,316 INFO L470 AbstractCegarLoop]: Abstraction has 2881 states and 4962 transitions. [2022-01-10 19:30:37,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:37,316 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 4962 transitions. [2022-01-10 19:30:37,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 19:30:37,317 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:37,317 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] [2022-01-10 19:30:37,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 19:30:37,317 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:37,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:37,318 INFO L85 PathProgramCache]: Analyzing trace with hash -2100056000, now seen corresponding path program 1 times [2022-01-10 19:30:37,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:37,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104991777] [2022-01-10 19:30:37,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:37,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:37,374 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 19:30:37,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:37,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104991777] [2022-01-10 19:30:37,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104991777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:37,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:37,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 19:30:37,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034928038] [2022-01-10 19:30:37,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:37,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:30:37,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:37,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:30:37,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:30:37,376 INFO L87 Difference]: Start difference. First operand 2881 states and 4962 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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 19:30:37,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:37,572 INFO L93 Difference]: Finished difference Result 4069 states and 6563 transitions. [2022-01-10 19:30:37,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:30:37,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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 77 [2022-01-10 19:30:37,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:37,579 INFO L225 Difference]: With dead ends: 4069 [2022-01-10 19:30:37,579 INFO L226 Difference]: Without dead ends: 3343 [2022-01-10 19:30:37,581 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 19:30:37,582 INFO L933 BasicCegarLoop]: 4559 mSDtfsCounter, 1465 mSDsluCounter, 12888 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 17447 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:30:37,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1465 Valid, 17447 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:30:37,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3343 states. [2022-01-10 19:30:37,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3343 to 2887. [2022-01-10 19:30:37,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2887 states, 2884 states have (on average 1.7184466019417475) internal successors, (4956), 2886 states have internal predecessors, (4956), 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 19:30:37,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2887 states to 2887 states and 4956 transitions. [2022-01-10 19:30:37,665 INFO L78 Accepts]: Start accepts. Automaton has 2887 states and 4956 transitions. Word has length 77 [2022-01-10 19:30:37,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:37,666 INFO L470 AbstractCegarLoop]: Abstraction has 2887 states and 4956 transitions. [2022-01-10 19:30:37,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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 19:30:37,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2887 states and 4956 transitions. [2022-01-10 19:30:37,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 19:30:37,667 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:37,667 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] [2022-01-10 19:30:37,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 19:30:37,667 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:37,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:37,668 INFO L85 PathProgramCache]: Analyzing trace with hash 494170817, now seen corresponding path program 1 times [2022-01-10 19:30:37,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:37,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747948129] [2022-01-10 19:30:37,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:37,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:37,715 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 19:30:37,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:37,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747948129] [2022-01-10 19:30:37,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747948129] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:37,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:37,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:30:37,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433404850] [2022-01-10 19:30:37,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:37,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:37,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:37,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:37,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:37,717 INFO L87 Difference]: Start difference. First operand 2887 states and 4956 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:37,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:37,852 INFO L93 Difference]: Finished difference Result 4296 states and 6795 transitions. [2022-01-10 19:30:37,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:37,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 77 [2022-01-10 19:30:37,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:37,859 INFO L225 Difference]: With dead ends: 4296 [2022-01-10 19:30:37,859 INFO L226 Difference]: Without dead ends: 3552 [2022-01-10 19:30:37,861 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 19:30:37,862 INFO L933 BasicCegarLoop]: 4509 mSDtfsCounter, 4411 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4411 SdHoareTripleChecker+Valid, 4971 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:30:37,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4411 Valid, 4971 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:37,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2022-01-10 19:30:37,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3478. [2022-01-10 19:30:37,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3478 states, 3475 states have (on average 1.6446043165467625) internal successors, (5715), 3477 states have internal predecessors, (5715), 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 19:30:38,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 5715 transitions. [2022-01-10 19:30:38,001 INFO L78 Accepts]: Start accepts. Automaton has 3478 states and 5715 transitions. Word has length 77 [2022-01-10 19:30:38,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:38,001 INFO L470 AbstractCegarLoop]: Abstraction has 3478 states and 5715 transitions. [2022-01-10 19:30:38,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 19:30:38,002 INFO L276 IsEmpty]: Start isEmpty. Operand 3478 states and 5715 transitions. [2022-01-10 19:30:38,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 19:30:38,003 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:38,003 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] [2022-01-10 19:30:38,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 19:30:38,004 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:38,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:38,004 INFO L85 PathProgramCache]: Analyzing trace with hash 58765366, now seen corresponding path program 1 times [2022-01-10 19:30:38,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:38,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826507640] [2022-01-10 19:30:38,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:38,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:38,053 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 19:30:38,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:38,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826507640] [2022-01-10 19:30:38,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826507640] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:38,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:38,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:30:38,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945789752] [2022-01-10 19:30:38,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:38,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:38,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:38,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:38,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:38,055 INFO L87 Difference]: Start difference. First operand 3478 states and 5715 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 19:30:38,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:38,254 INFO L93 Difference]: Finished difference Result 6029 states and 9032 transitions. [2022-01-10 19:30:38,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:38,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 124 [2022-01-10 19:30:38,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:38,265 INFO L225 Difference]: With dead ends: 6029 [2022-01-10 19:30:38,265 INFO L226 Difference]: Without dead ends: 4700 [2022-01-10 19:30:38,269 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 19:30:38,269 INFO L933 BasicCegarLoop]: 4506 mSDtfsCounter, 4431 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4431 SdHoareTripleChecker+Valid, 4968 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:30:38,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4431 Valid, 4968 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:38,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4700 states. [2022-01-10 19:30:38,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4700 to 4580. [2022-01-10 19:30:38,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4580 states, 4577 states have (on average 1.5597552982302818) internal successors, (7139), 4579 states have internal predecessors, (7139), 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 19:30:38,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 7139 transitions. [2022-01-10 19:30:38,447 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 7139 transitions. Word has length 124 [2022-01-10 19:30:38,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:38,447 INFO L470 AbstractCegarLoop]: Abstraction has 4580 states and 7139 transitions. [2022-01-10 19:30:38,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 19:30:38,448 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 7139 transitions. [2022-01-10 19:30:38,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 19:30:38,450 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:38,450 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] [2022-01-10 19:30:38,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 19:30:38,451 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:38,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:38,451 INFO L85 PathProgramCache]: Analyzing trace with hash -2055677962, now seen corresponding path program 1 times [2022-01-10 19:30:38,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:38,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880158594] [2022-01-10 19:30:38,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:38,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:38,518 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 19:30:38,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:38,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880158594] [2022-01-10 19:30:38,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880158594] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:38,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:38,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 19:30:38,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118986794] [2022-01-10 19:30:38,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:38,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:30:38,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:38,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:30:38,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:30:38,520 INFO L87 Difference]: Start difference. First operand 4580 states and 7139 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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 19:30:38,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:38,932 INFO L93 Difference]: Finished difference Result 9128 states and 13113 transitions. [2022-01-10 19:30:38,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:30:38,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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 124 [2022-01-10 19:30:38,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:38,948 INFO L225 Difference]: With dead ends: 9128 [2022-01-10 19:30:38,948 INFO L226 Difference]: Without dead ends: 6722 [2022-01-10 19:30:38,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 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 19:30:38,952 INFO L933 BasicCegarLoop]: 4492 mSDtfsCounter, 1180 mSDsluCounter, 13320 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 17812 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:30:38,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1180 Valid, 17812 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:30:38,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6722 states. [2022-01-10 19:30:39,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6722 to 4604. [2022-01-10 19:30:39,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4604 states, 4601 states have (on average 1.5487937404911976) internal successors, (7126), 4603 states have internal predecessors, (7126), 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 19:30:39,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4604 states to 4604 states and 7126 transitions. [2022-01-10 19:30:39,169 INFO L78 Accepts]: Start accepts. Automaton has 4604 states and 7126 transitions. Word has length 124 [2022-01-10 19:30:39,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:39,170 INFO L470 AbstractCegarLoop]: Abstraction has 4604 states and 7126 transitions. [2022-01-10 19:30:39,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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 19:30:39,170 INFO L276 IsEmpty]: Start isEmpty. Operand 4604 states and 7126 transitions. [2022-01-10 19:30:39,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 19:30:39,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:39,172 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] [2022-01-10 19:30:39,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 19:30:39,173 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:39,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:39,173 INFO L85 PathProgramCache]: Analyzing trace with hash -2020890764, now seen corresponding path program 1 times [2022-01-10 19:30:39,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:39,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501022173] [2022-01-10 19:30:39,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:39,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:39,230 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 19:30:39,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:39,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501022173] [2022-01-10 19:30:39,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501022173] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:39,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:39,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:30:39,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085636275] [2022-01-10 19:30:39,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:39,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:39,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:39,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:39,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:39,232 INFO L87 Difference]: Start difference. First operand 4604 states and 7126 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 19:30:39,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:39,594 INFO L93 Difference]: Finished difference Result 9245 states and 12998 transitions. [2022-01-10 19:30:39,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:39,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 124 [2022-01-10 19:30:39,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:39,608 INFO L225 Difference]: With dead ends: 9245 [2022-01-10 19:30:39,608 INFO L226 Difference]: Without dead ends: 6827 [2022-01-10 19:30:39,612 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 19:30:39,613 INFO L933 BasicCegarLoop]: 4708 mSDtfsCounter, 4328 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4328 SdHoareTripleChecker+Valid, 5239 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 19:30:39,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4328 Valid, 5239 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:39,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6827 states. [2022-01-10 19:30:39,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6827 to 6823. [2022-01-10 19:30:39,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6823 states, 6820 states have (on average 1.4475073313782991) internal successors, (9872), 6822 states have internal predecessors, (9872), 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 19:30:39,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6823 states to 6823 states and 9872 transitions. [2022-01-10 19:30:39,958 INFO L78 Accepts]: Start accepts. Automaton has 6823 states and 9872 transitions. Word has length 124 [2022-01-10 19:30:39,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:39,959 INFO L470 AbstractCegarLoop]: Abstraction has 6823 states and 9872 transitions. [2022-01-10 19:30:39,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 19:30:39,959 INFO L276 IsEmpty]: Start isEmpty. Operand 6823 states and 9872 transitions. [2022-01-10 19:30:39,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 19:30:39,962 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:39,962 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] [2022-01-10 19:30:39,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 19:30:39,963 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:39,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:39,963 INFO L85 PathProgramCache]: Analyzing trace with hash -794644973, now seen corresponding path program 1 times [2022-01-10 19:30:39,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:39,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321703565] [2022-01-10 19:30:39,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:39,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:39,999 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 19:30:39,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:39,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321703565] [2022-01-10 19:30:40,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321703565] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:40,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:40,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:30:40,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690591403] [2022-01-10 19:30:40,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:40,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:40,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:40,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:40,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:40,002 INFO L87 Difference]: Start difference. First operand 6823 states and 9872 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 19:30:40,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:40,365 INFO L93 Difference]: Finished difference Result 11401 states and 15642 transitions. [2022-01-10 19:30:40,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:40,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 124 [2022-01-10 19:30:40,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:40,379 INFO L225 Difference]: With dead ends: 11401 [2022-01-10 19:30:40,380 INFO L226 Difference]: Without dead ends: 6764 [2022-01-10 19:30:40,388 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 19:30:40,389 INFO L933 BasicCegarLoop]: 4507 mSDtfsCounter, 545 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 8465 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 19:30:40,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 8465 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:40,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6764 states. [2022-01-10 19:30:40,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6764 to 6764. [2022-01-10 19:30:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6764 states, 6761 states have (on average 1.4499334417985505) internal successors, (9803), 6763 states have internal predecessors, (9803), 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 19:30:40,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6764 states to 6764 states and 9803 transitions. [2022-01-10 19:30:40,712 INFO L78 Accepts]: Start accepts. Automaton has 6764 states and 9803 transitions. Word has length 124 [2022-01-10 19:30:40,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:40,712 INFO L470 AbstractCegarLoop]: Abstraction has 6764 states and 9803 transitions. [2022-01-10 19:30:40,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 19:30:40,712 INFO L276 IsEmpty]: Start isEmpty. Operand 6764 states and 9803 transitions. [2022-01-10 19:30:40,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 19:30:40,715 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:40,715 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] [2022-01-10 19:30:40,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 19:30:40,716 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:40,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:40,716 INFO L85 PathProgramCache]: Analyzing trace with hash -27406120, now seen corresponding path program 1 times [2022-01-10 19:30:40,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:40,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545722300] [2022-01-10 19:30:40,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:40,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:40,779 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 19:30:40,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:40,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545722300] [2022-01-10 19:30:40,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545722300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:40,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:40,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:30:40,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109763917] [2022-01-10 19:30:40,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:40,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:40,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:40,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:40,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:40,781 INFO L87 Difference]: Start difference. First operand 6764 states and 9803 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 19:30:41,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:41,372 INFO L93 Difference]: Finished difference Result 15546 states and 20817 transitions. [2022-01-10 19:30:41,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:41,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 125 [2022-01-10 19:30:41,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:41,399 INFO L225 Difference]: With dead ends: 15546 [2022-01-10 19:30:41,399 INFO L226 Difference]: Without dead ends: 10968 [2022-01-10 19:30:41,410 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 19:30:41,410 INFO L933 BasicCegarLoop]: 4659 mSDtfsCounter, 4431 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4431 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:30:41,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4431 Valid, 5181 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:41,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10968 states. [2022-01-10 19:30:41,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10968 to 10676. [2022-01-10 19:30:41,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10676 states, 10673 states have (on average 1.3729035884943315) internal successors, (14653), 10675 states have internal predecessors, (14653), 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 19:30:41,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10676 states to 10676 states and 14653 transitions. [2022-01-10 19:30:41,988 INFO L78 Accepts]: Start accepts. Automaton has 10676 states and 14653 transitions. Word has length 125 [2022-01-10 19:30:41,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:41,989 INFO L470 AbstractCegarLoop]: Abstraction has 10676 states and 14653 transitions. [2022-01-10 19:30:41,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 19:30:41,989 INFO L276 IsEmpty]: Start isEmpty. Operand 10676 states and 14653 transitions. [2022-01-10 19:30:41,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 19:30:41,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:41,994 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] [2022-01-10 19:30:41,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 19:30:41,994 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:41,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:41,995 INFO L85 PathProgramCache]: Analyzing trace with hash 869508281, now seen corresponding path program 1 times [2022-01-10 19:30:41,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:41,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243653481] [2022-01-10 19:30:41,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:41,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:42,023 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 19:30:42,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:42,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243653481] [2022-01-10 19:30:42,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243653481] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:42,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:42,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:30:42,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865870280] [2022-01-10 19:30:42,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:42,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:42,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:42,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:42,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:42,025 INFO L87 Difference]: Start difference. First operand 10676 states and 14653 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 19:30:42,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:42,689 INFO L93 Difference]: Finished difference Result 19134 states and 25236 transitions. [2022-01-10 19:30:42,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:42,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 125 [2022-01-10 19:30:42,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:42,717 INFO L225 Difference]: With dead ends: 19134 [2022-01-10 19:30:42,717 INFO L226 Difference]: Without dead ends: 10618 [2022-01-10 19:30:42,732 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 19:30:42,733 INFO L933 BasicCegarLoop]: 4506 mSDtfsCounter, 543 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 8464 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 19:30:42,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [543 Valid, 8464 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:42,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10618 states. [2022-01-10 19:30:43,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10618 to 10618. [2022-01-10 19:30:43,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10618 states, 10615 states have (on average 1.3740932642487047) internal successors, (14586), 10617 states have internal predecessors, (14586), 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 19:30:43,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10618 states to 10618 states and 14586 transitions. [2022-01-10 19:30:43,330 INFO L78 Accepts]: Start accepts. Automaton has 10618 states and 14586 transitions. Word has length 125 [2022-01-10 19:30:43,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:43,331 INFO L470 AbstractCegarLoop]: Abstraction has 10618 states and 14586 transitions. [2022-01-10 19:30:43,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 19:30:43,331 INFO L276 IsEmpty]: Start isEmpty. Operand 10618 states and 14586 transitions. [2022-01-10 19:30:43,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-10 19:30:43,338 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:43,338 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] [2022-01-10 19:30:43,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 19:30:43,338 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:43,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:43,339 INFO L85 PathProgramCache]: Analyzing trace with hash 607188257, now seen corresponding path program 1 times [2022-01-10 19:30:43,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:43,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707551974] [2022-01-10 19:30:43,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:43,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:43,388 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 19:30:43,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:43,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707551974] [2022-01-10 19:30:43,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707551974] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:43,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:43,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:30:43,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093609852] [2022-01-10 19:30:43,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:43,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:43,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:43,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:43,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:43,391 INFO L87 Difference]: Start difference. First operand 10618 states and 14586 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 19:30:44,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:44,294 INFO L93 Difference]: Finished difference Result 26523 states and 34430 transitions. [2022-01-10 19:30:44,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:44,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 126 [2022-01-10 19:30:44,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:44,330 INFO L225 Difference]: With dead ends: 26523 [2022-01-10 19:30:44,330 INFO L226 Difference]: Without dead ends: 18091 [2022-01-10 19:30:44,342 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 19:30:44,343 INFO L933 BasicCegarLoop]: 4622 mSDtfsCounter, 4377 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4377 SdHoareTripleChecker+Valid, 5142 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:30:44,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4377 Valid, 5142 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:44,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18091 states. [2022-01-10 19:30:45,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18091 to 17639. [2022-01-10 19:30:45,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17639 states, 17636 states have (on average 1.3196870038557496) internal successors, (23274), 17638 states have internal predecessors, (23274), 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 19:30:45,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17639 states to 17639 states and 23274 transitions. [2022-01-10 19:30:45,109 INFO L78 Accepts]: Start accepts. Automaton has 17639 states and 23274 transitions. Word has length 126 [2022-01-10 19:30:45,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:45,110 INFO L470 AbstractCegarLoop]: Abstraction has 17639 states and 23274 transitions. [2022-01-10 19:30:45,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 19:30:45,110 INFO L276 IsEmpty]: Start isEmpty. Operand 17639 states and 23274 transitions. [2022-01-10 19:30:45,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-10 19:30:45,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:45,118 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] [2022-01-10 19:30:45,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 19:30:45,118 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:45,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:45,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1678154273, now seen corresponding path program 1 times [2022-01-10 19:30:45,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:45,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000603590] [2022-01-10 19:30:45,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:45,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:45,146 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 19:30:45,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:45,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000603590] [2022-01-10 19:30:45,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000603590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:45,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:45,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:30:45,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326442250] [2022-01-10 19:30:45,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:45,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:45,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:45,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:45,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:45,148 INFO L87 Difference]: Start difference. First operand 17639 states and 23274 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 19:30:45,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:45,869 INFO L93 Difference]: Finished difference Result 33054 states and 42472 transitions. [2022-01-10 19:30:45,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:45,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 126 [2022-01-10 19:30:45,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:45,899 INFO L225 Difference]: With dead ends: 33054 [2022-01-10 19:30:45,899 INFO L226 Difference]: Without dead ends: 17582 [2022-01-10 19:30:45,923 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 19:30:45,924 INFO L933 BasicCegarLoop]: 4505 mSDtfsCounter, 541 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 8463 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 19:30:45,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [541 Valid, 8463 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:45,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17582 states. [2022-01-10 19:30:46,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17582 to 17582. [2022-01-10 19:30:46,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17582 states, 17579 states have (on average 1.3202685021901133) internal successors, (23209), 17581 states have internal predecessors, (23209), 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 19:30:46,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17582 states to 17582 states and 23209 transitions. [2022-01-10 19:30:46,728 INFO L78 Accepts]: Start accepts. Automaton has 17582 states and 23209 transitions. Word has length 126 [2022-01-10 19:30:46,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:46,728 INFO L470 AbstractCegarLoop]: Abstraction has 17582 states and 23209 transitions. [2022-01-10 19:30:46,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 19:30:46,729 INFO L276 IsEmpty]: Start isEmpty. Operand 17582 states and 23209 transitions. [2022-01-10 19:30:46,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-10 19:30:46,736 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:46,736 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] [2022-01-10 19:30:46,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 19:30:46,736 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:46,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:46,737 INFO L85 PathProgramCache]: Analyzing trace with hash -202766937, now seen corresponding path program 1 times [2022-01-10 19:30:46,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:46,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887521866] [2022-01-10 19:30:46,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:46,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:46,786 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 19:30:46,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:46,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887521866] [2022-01-10 19:30:46,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887521866] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:46,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:46,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:30:46,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064215246] [2022-01-10 19:30:46,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:46,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:46,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:46,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:46,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:46,788 INFO L87 Difference]: Start difference. First operand 17582 states and 23209 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 19:30:48,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:48,098 INFO L93 Difference]: Finished difference Result 45742 states and 58267 transitions. [2022-01-10 19:30:48,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:48,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 127 [2022-01-10 19:30:48,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:48,149 INFO L225 Difference]: With dead ends: 45742 [2022-01-10 19:30:48,150 INFO L226 Difference]: Without dead ends: 30346 [2022-01-10 19:30:48,177 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 19:30:48,177 INFO L933 BasicCegarLoop]: 4601 mSDtfsCounter, 4337 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4337 SdHoareTripleChecker+Valid, 5126 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:30:48,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4337 Valid, 5126 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:48,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30346 states. [2022-01-10 19:30:49,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30346 to 30342. [2022-01-10 19:30:49,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30342 states, 30339 states have (on average 1.2854411813177757) internal successors, (38999), 30341 states have internal predecessors, (38999), 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 19:30:49,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30342 states to 30342 states and 38999 transitions. [2022-01-10 19:30:49,593 INFO L78 Accepts]: Start accepts. Automaton has 30342 states and 38999 transitions. Word has length 127 [2022-01-10 19:30:49,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:49,593 INFO L470 AbstractCegarLoop]: Abstraction has 30342 states and 38999 transitions. [2022-01-10 19:30:49,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 19:30:49,593 INFO L276 IsEmpty]: Start isEmpty. Operand 30342 states and 38999 transitions. [2022-01-10 19:30:49,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-10 19:30:49,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:49,604 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] [2022-01-10 19:30:49,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 19:30:49,604 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:49,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:49,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1023478854, now seen corresponding path program 1 times [2022-01-10 19:30:49,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:49,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111389872] [2022-01-10 19:30:49,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:49,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:49,634 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 19:30:49,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:49,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111389872] [2022-01-10 19:30:49,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111389872] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:49,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:49,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:30:49,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163323865] [2022-01-10 19:30:49,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:49,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:49,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:49,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:49,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:49,636 INFO L87 Difference]: Start difference. First operand 30342 states and 38999 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 19:30:50,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:50,909 INFO L93 Difference]: Finished difference Result 58442 states and 73905 transitions. [2022-01-10 19:30:50,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:50,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 127 [2022-01-10 19:30:50,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:50,953 INFO L225 Difference]: With dead ends: 58442 [2022-01-10 19:30:50,953 INFO L226 Difference]: Without dead ends: 30286 [2022-01-10 19:30:50,978 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 19:30:50,979 INFO L933 BasicCegarLoop]: 4504 mSDtfsCounter, 539 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 8462 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 19:30:50,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 8462 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:51,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30286 states. [2022-01-10 19:30:52,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30286 to 30286. [2022-01-10 19:30:52,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30286 states, 30283 states have (on average 1.285737872733877) internal successors, (38936), 30285 states have internal predecessors, (38936), 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 19:30:52,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30286 states to 30286 states and 38936 transitions. [2022-01-10 19:30:52,476 INFO L78 Accepts]: Start accepts. Automaton has 30286 states and 38936 transitions. Word has length 127 [2022-01-10 19:30:52,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:52,477 INFO L470 AbstractCegarLoop]: Abstraction has 30286 states and 38936 transitions. [2022-01-10 19:30:52,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 19:30:52,477 INFO L276 IsEmpty]: Start isEmpty. Operand 30286 states and 38936 transitions. [2022-01-10 19:30:52,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-01-10 19:30:52,485 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:52,485 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] [2022-01-10 19:30:52,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 19:30:52,486 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:52,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:52,486 INFO L85 PathProgramCache]: Analyzing trace with hash -699479849, now seen corresponding path program 1 times [2022-01-10 19:30:52,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:52,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238471875] [2022-01-10 19:30:52,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:52,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:52,540 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 19:30:52,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:52,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238471875] [2022-01-10 19:30:52,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238471875] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:52,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:52,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:30:52,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122896239] [2022-01-10 19:30:52,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:52,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:52,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:52,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:52,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:52,543 INFO L87 Difference]: Start difference. First operand 30286 states and 38936 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 19:30:55,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:30:55,438 INFO L93 Difference]: Finished difference Result 83086 states and 104172 transitions. [2022-01-10 19:30:55,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:30:55,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2022-01-10 19:30:55,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:30:55,518 INFO L225 Difference]: With dead ends: 83086 [2022-01-10 19:30:55,519 INFO L226 Difference]: Without dead ends: 54986 [2022-01-10 19:30:55,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 19:30:55,544 INFO L933 BasicCegarLoop]: 4958 mSDtfsCounter, 451 mSDsluCounter, 4483 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 9441 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:30:55,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 9441 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:30:55,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54986 states. [2022-01-10 19:30:58,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54986 to 54986. [2022-01-10 19:30:58,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54986 states, 54983 states have (on average 1.2504592328537911) internal successors, (68754), 54985 states have internal predecessors, (68754), 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 19:30:58,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54986 states to 54986 states and 68754 transitions. [2022-01-10 19:30:58,636 INFO L78 Accepts]: Start accepts. Automaton has 54986 states and 68754 transitions. Word has length 128 [2022-01-10 19:30:58,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:30:58,636 INFO L470 AbstractCegarLoop]: Abstraction has 54986 states and 68754 transitions. [2022-01-10 19:30:58,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 19:30:58,637 INFO L276 IsEmpty]: Start isEmpty. Operand 54986 states and 68754 transitions. [2022-01-10 19:30:58,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 19:30:58,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:30:58,661 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] [2022-01-10 19:30:58,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 19:30:58,662 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:30:58,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:30:58,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1736521428, now seen corresponding path program 1 times [2022-01-10 19:30:58,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:30:58,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604845937] [2022-01-10 19:30:58,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:30:58,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:30:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:30:58,714 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 19:30:58,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:30:58,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604845937] [2022-01-10 19:30:58,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604845937] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:30:58,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:30:58,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:30:58,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092491249] [2022-01-10 19:30:58,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:30:58,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:30:58,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:30:58,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:30:58,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:30:58,716 INFO L87 Difference]: Start difference. First operand 54986 states and 68754 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 19:31:02,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:02,585 INFO L93 Difference]: Finished difference Result 131344 states and 162280 transitions. [2022-01-10 19:31:02,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:02,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 19:31:02,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:02,695 INFO L225 Difference]: With dead ends: 131344 [2022-01-10 19:31:02,696 INFO L226 Difference]: Without dead ends: 78556 [2022-01-10 19:31:02,735 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 19:31:02,736 INFO L933 BasicCegarLoop]: 4495 mSDtfsCounter, 4314 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4314 SdHoareTripleChecker+Valid, 4951 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:02,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4314 Valid, 4951 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:02,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78556 states. [2022-01-10 19:31:06,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78556 to 78296. [2022-01-10 19:31:07,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78296 states, 78293 states have (on average 1.2363557406153807) internal successors, (96798), 78295 states have internal predecessors, (96798), 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 19:31:07,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78296 states to 78296 states and 96798 transitions. [2022-01-10 19:31:07,154 INFO L78 Accepts]: Start accepts. Automaton has 78296 states and 96798 transitions. Word has length 165 [2022-01-10 19:31:07,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:07,155 INFO L470 AbstractCegarLoop]: Abstraction has 78296 states and 96798 transitions. [2022-01-10 19:31:07,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 19:31:07,155 INFO L276 IsEmpty]: Start isEmpty. Operand 78296 states and 96798 transitions. [2022-01-10 19:31:07,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 19:31:07,197 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:07,197 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] [2022-01-10 19:31:07,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 19:31:07,198 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:07,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:07,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1353634147, now seen corresponding path program 1 times [2022-01-10 19:31:07,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:07,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104205432] [2022-01-10 19:31:07,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:07,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:07,264 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 19:31:07,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:07,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104205432] [2022-01-10 19:31:07,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104205432] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:07,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:07,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:07,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602277488] [2022-01-10 19:31:07,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:07,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:07,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:07,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:07,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:07,266 INFO L87 Difference]: Start difference. First operand 78296 states and 96798 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 19:31:12,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:12,743 INFO L93 Difference]: Finished difference Result 188440 states and 231082 transitions. [2022-01-10 19:31:12,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:12,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 19:31:12,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:12,941 INFO L225 Difference]: With dead ends: 188440 [2022-01-10 19:31:12,942 INFO L226 Difference]: Without dead ends: 112354 [2022-01-10 19:31:13,002 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 19:31:13,003 INFO L933 BasicCegarLoop]: 4493 mSDtfsCounter, 4316 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4316 SdHoareTripleChecker+Valid, 4949 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:13,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4316 Valid, 4949 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:13,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112354 states.