/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_NONE.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.11.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 01:23:26,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 01:23:26,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 01:23:26,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-11 01:23:26,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 01:23:26,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 01:23:26,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 01:23:26,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 01:23:26,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 01:23:26,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 01:23:26,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 01:23:26,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 01:23:26,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 01:23:26,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 01:23:26,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 01:23:26,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 01:23:26,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 01:23:26,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 01:23:26,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 01:23:26,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 01:23:27,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 01:23:27,039 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 01:23:27,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 01:23:27,040 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 01:23:27,040 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 01:23:27,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 01:23:27,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 01:23:27,041 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 01:23:27,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 01:23:27,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 01:23:27,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 01:23:27,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 01:23:27,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 01:23:27,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 01:23:27,042 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 01:23:27,042 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 01:23:27,042 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 01:23:27,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 01:23:27,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 01:23:27,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 01:23:27,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 01:23:27,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 01:23:27,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:23:27,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 01:23:27,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 01:23:27,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 01:23:27,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 01:23:27,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 01:23:27,047 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 01:23:27,048 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 01:23:27,048 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 01:23:27,048 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 01:23:27,048 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 01:23:27,050 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 01:23:27,050 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 01:23:27,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 01:23:27,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 01:23:27,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 01:23:27,302 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 01:23:27,303 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 01:23:27,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.11.cil-2.c [2022-01-11 01:23:27,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0d28f5c6/66fa02b2a80f4d83ac0ba48e5c7e4c4e/FLAG386eae2d6 [2022-01-11 01:23:28,300 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 01:23:28,301 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.11.cil-2.c [2022-01-11 01:23:28,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0d28f5c6/66fa02b2a80f4d83ac0ba48e5c7e4c4e/FLAG386eae2d6 [2022-01-11 01:23:28,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0d28f5c6/66fa02b2a80f4d83ac0ba48e5c7e4c4e [2022-01-11 01:23:28,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 01:23:28,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 01:23:28,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 01:23:28,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 01:23:28,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 01:23:28,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:23:28" (1/1) ... [2022-01-11 01:23:28,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f1202fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:23:28, skipping insertion in model container [2022-01-11 01:23:28,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:23:28" (1/1) ... [2022-01-11 01:23:28,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 01:23:29,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 01:23:30,746 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_label49+token_ring.11.cil-2.c[380593,380606] [2022-01-11 01:23:30,773 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_label49+token_ring.11.cil-2.c[383339,383352] [2022-01-11 01:23:31,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:23:31,098 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 01:23:31,866 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_label49+token_ring.11.cil-2.c[380593,380606] [2022-01-11 01:23:31,872 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_label49+token_ring.11.cil-2.c[383339,383352] [2022-01-11 01:23:31,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:23:31,957 INFO L208 MainTranslator]: Completed translation [2022-01-11 01:23:31,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:23:31 WrapperNode [2022-01-11 01:23:31,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 01:23:31,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 01:23:31,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 01:23:31,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 01:23:31,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:23:31" (1/1) ... [2022-01-11 01:23:32,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:23:31" (1/1) ... [2022-01-11 01:23:32,596 INFO L137 Inliner]: procedures = 67, calls = 74, calls flagged for inlining = 69, calls inlined = 248, statements flattened = 15980 [2022-01-11 01:23:32,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 01:23:32,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 01:23:32,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 01:23:32,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 01:23:32,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:23:31" (1/1) ... [2022-01-11 01:23:32,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:23:31" (1/1) ... [2022-01-11 01:23:32,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:23:31" (1/1) ... [2022-01-11 01:23:32,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:23:31" (1/1) ... [2022-01-11 01:23:32,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:23:31" (1/1) ... [2022-01-11 01:23:33,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:23:31" (1/1) ... [2022-01-11 01:23:33,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:23:31" (1/1) ... [2022-01-11 01:23:33,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 01:23:33,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 01:23:33,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 01:23:33,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 01:23:33,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:23:31" (1/1) ... [2022-01-11 01:23:33,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:23:33,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:23:33,193 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) [2022-01-11 01:23:33,200 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 [2022-01-11 01:23:33,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 01:23:33,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 01:23:33,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 01:23:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 01:23:33,370 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 01:23:33,372 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 01:23:42,597 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 01:23:42,634 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 01:23:42,634 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2022-01-11 01:23:42,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:23:42 BoogieIcfgContainer [2022-01-11 01:23:42,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 01:23:42,640 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 01:23:42,640 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 01:23:42,642 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 01:23:42,644 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:23:42" (1/1) ... [2022-01-11 01:23:44,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:23:44 BasicIcfg [2022-01-11 01:23:44,721 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 01:23:44,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 01:23:44,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 01:23:44,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 01:23:44,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:23:28" (1/4) ... [2022-01-11 01:23:44,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c9ccfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:23:44, skipping insertion in model container [2022-01-11 01:23:44,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:23:31" (2/4) ... [2022-01-11 01:23:44,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c9ccfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:23:44, skipping insertion in model container [2022-01-11 01:23:44,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:23:42" (3/4) ... [2022-01-11 01:23:44,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c9ccfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:23:44, skipping insertion in model container [2022-01-11 01:23:44,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:23:44" (4/4) ... [2022-01-11 01:23:44,727 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.11.cil-2.cTransformedIcfg [2022-01-11 01:23:44,731 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 01:23:44,731 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-11 01:23:44,779 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 01:23:44,786 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 [2022-01-11 01:23:44,787 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-11 01:23:44,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 3756 states, 3753 states have (on average 1.7172928324007461) internal successors, (6445), 3755 states have internal predecessors, (6445), 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) [2022-01-11 01:23:44,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:44,882 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:44,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:44,883 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:44,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:44,888 INFO L85 PathProgramCache]: Analyzing trace with hash 452533607, now seen corresponding path program 1 times [2022-01-11 01:23:44,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:44,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569123820] [2022-01-11 01:23:44,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:44,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:45,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:45,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:45,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569123820] [2022-01-11 01:23:45,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569123820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:45,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:45,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:45,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578342883] [2022-01-11 01:23:45,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:45,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:45,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:45,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:45,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:45,460 INFO L87 Difference]: Start difference. First operand has 3756 states, 3753 states have (on average 1.7172928324007461) internal successors, (6445), 3755 states have internal predecessors, (6445), 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 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:45,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:45,787 INFO L93 Difference]: Finished difference Result 8828 states and 14847 transitions. [2022-01-11 01:23:45,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:45,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:45,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:45,825 INFO L225 Difference]: With dead ends: 8828 [2022-01-11 01:23:45,826 INFO L226 Difference]: Without dead ends: 5020 [2022-01-11 01:23:45,839 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 [2022-01-11 01:23:45,842 INFO L933 BasicCegarLoop]: 6346 mSDtfsCounter, 6206 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6206 SdHoareTripleChecker+Valid, 8424 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 [2022-01-11 01:23:45,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6206 Valid, 8424 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:23:45,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5020 states. [2022-01-11 01:23:46,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5020 to 5018. [2022-01-11 01:23:46,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6421451355661882) internal successors, (8237), 5017 states have internal predecessors, (8237), 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) [2022-01-11 01:23:46,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8237 transitions. [2022-01-11 01:23:46,058 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8237 transitions. Word has length 154 [2022-01-11 01:23:46,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:46,059 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8237 transitions. [2022-01-11 01:23:46,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:46,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8237 transitions. [2022-01-11 01:23:46,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:46,067 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:46,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:46,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 01:23:46,068 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:46,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:46,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1886278023, now seen corresponding path program 1 times [2022-01-11 01:23:46,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:46,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222897141] [2022-01-11 01:23:46,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:46,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:46,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:46,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:46,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222897141] [2022-01-11 01:23:46,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222897141] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:46,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:46,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:46,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407699144] [2022-01-11 01:23:46,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:46,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:46,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:46,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:46,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:46,209 INFO L87 Difference]: Start difference. First operand 5018 states and 8237 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:46,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:46,343 INFO L93 Difference]: Finished difference Result 7896 states and 12484 transitions. [2022-01-11 01:23:46,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:46,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:46,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:46,365 INFO L225 Difference]: With dead ends: 7896 [2022-01-11 01:23:46,366 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:46,374 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 [2022-01-11 01:23:46,375 INFO L933 BasicCegarLoop]: 6273 mSDtfsCounter, 6259 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6259 SdHoareTripleChecker+Valid, 6273 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 [2022-01-11 01:23:46,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6259 Valid, 6273 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:46,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:46,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:46,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6405502392344498) internal successors, (8229), 5017 states have internal predecessors, (8229), 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) [2022-01-11 01:23:46,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8229 transitions. [2022-01-11 01:23:46,631 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8229 transitions. Word has length 154 [2022-01-11 01:23:46,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:46,631 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8229 transitions. [2022-01-11 01:23:46,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:46,632 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8229 transitions. [2022-01-11 01:23:46,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:46,634 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:46,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:46,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 01:23:46,634 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:46,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:46,635 INFO L85 PathProgramCache]: Analyzing trace with hash 2071075175, now seen corresponding path program 1 times [2022-01-11 01:23:46,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:46,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831652747] [2022-01-11 01:23:46,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:46,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:46,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:46,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:46,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831652747] [2022-01-11 01:23:46,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831652747] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:46,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:46,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:46,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843244463] [2022-01-11 01:23:46,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:46,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:46,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:46,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:46,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:46,750 INFO L87 Difference]: Start difference. First operand 5018 states and 8229 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:46,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:46,910 INFO L93 Difference]: Finished difference Result 7894 states and 12465 transitions. [2022-01-11 01:23:46,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:46,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:46,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:46,931 INFO L225 Difference]: With dead ends: 7894 [2022-01-11 01:23:46,932 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:46,940 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 [2022-01-11 01:23:46,944 INFO L933 BasicCegarLoop]: 6268 mSDtfsCounter, 6252 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6252 SdHoareTripleChecker+Valid, 6268 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 [2022-01-11 01:23:46,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6252 Valid, 6268 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:46,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:47,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:47,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6389553429027113) internal successors, (8221), 5017 states have internal predecessors, (8221), 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) [2022-01-11 01:23:47,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8221 transitions. [2022-01-11 01:23:47,122 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8221 transitions. Word has length 154 [2022-01-11 01:23:47,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:47,123 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8221 transitions. [2022-01-11 01:23:47,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:47,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8221 transitions. [2022-01-11 01:23:47,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:47,125 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:47,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:47,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 01:23:47,126 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:47,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:47,126 INFO L85 PathProgramCache]: Analyzing trace with hash -91858617, now seen corresponding path program 1 times [2022-01-11 01:23:47,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:47,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600821962] [2022-01-11 01:23:47,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:47,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:47,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:47,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:47,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600821962] [2022-01-11 01:23:47,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600821962] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:47,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:47,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:47,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957475094] [2022-01-11 01:23:47,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:47,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:47,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:47,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:47,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:47,200 INFO L87 Difference]: Start difference. First operand 5018 states and 8221 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:47,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:47,428 INFO L93 Difference]: Finished difference Result 7893 states and 12448 transitions. [2022-01-11 01:23:47,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:47,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:47,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:47,447 INFO L225 Difference]: With dead ends: 7893 [2022-01-11 01:23:47,447 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:47,451 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 [2022-01-11 01:23:47,452 INFO L933 BasicCegarLoop]: 6263 mSDtfsCounter, 6246 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6246 SdHoareTripleChecker+Valid, 6263 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 [2022-01-11 01:23:47,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6246 Valid, 6263 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:47,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:47,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:47,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6373604465709728) internal successors, (8213), 5017 states have internal predecessors, (8213), 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) [2022-01-11 01:23:47,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8213 transitions. [2022-01-11 01:23:47,619 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8213 transitions. Word has length 154 [2022-01-11 01:23:47,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:47,619 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8213 transitions. [2022-01-11 01:23:47,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:47,620 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8213 transitions. [2022-01-11 01:23:47,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:47,622 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:47,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:47,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 01:23:47,622 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:47,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:47,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1778031975, now seen corresponding path program 1 times [2022-01-11 01:23:47,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:47,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53432978] [2022-01-11 01:23:47,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:47,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:47,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:47,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:47,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53432978] [2022-01-11 01:23:47,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53432978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:47,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:47,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:47,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881879619] [2022-01-11 01:23:47,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:47,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:47,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:47,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:47,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:47,710 INFO L87 Difference]: Start difference. First operand 5018 states and 8213 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:47,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:47,858 INFO L93 Difference]: Finished difference Result 7892 states and 12431 transitions. [2022-01-11 01:23:47,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:47,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:47,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:47,891 INFO L225 Difference]: With dead ends: 7892 [2022-01-11 01:23:47,891 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:47,898 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 [2022-01-11 01:23:47,899 INFO L933 BasicCegarLoop]: 6258 mSDtfsCounter, 6240 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6240 SdHoareTripleChecker+Valid, 6258 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 [2022-01-11 01:23:47,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6240 Valid, 6258 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:47,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:48,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:48,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6357655502392345) internal successors, (8205), 5017 states have internal predecessors, (8205), 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) [2022-01-11 01:23:48,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8205 transitions. [2022-01-11 01:23:48,064 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8205 transitions. Word has length 154 [2022-01-11 01:23:48,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:48,068 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8205 transitions. [2022-01-11 01:23:48,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:48,069 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8205 transitions. [2022-01-11 01:23:48,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:48,071 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:48,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:48,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 01:23:48,071 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:48,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:48,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1763879609, now seen corresponding path program 1 times [2022-01-11 01:23:48,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:48,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862933137] [2022-01-11 01:23:48,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:48,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:48,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:48,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:48,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862933137] [2022-01-11 01:23:48,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862933137] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:48,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:48,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:48,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022486750] [2022-01-11 01:23:48,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:48,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:48,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:48,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:48,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:48,148 INFO L87 Difference]: Start difference. First operand 5018 states and 8205 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:48,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:48,315 INFO L93 Difference]: Finished difference Result 7891 states and 12414 transitions. [2022-01-11 01:23:48,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:48,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:48,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:48,328 INFO L225 Difference]: With dead ends: 7891 [2022-01-11 01:23:48,328 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:48,334 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 [2022-01-11 01:23:48,335 INFO L933 BasicCegarLoop]: 6253 mSDtfsCounter, 6234 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6234 SdHoareTripleChecker+Valid, 6253 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 [2022-01-11 01:23:48,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6234 Valid, 6253 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:48,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:48,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:48,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.634170653907496) internal successors, (8197), 5017 states have internal predecessors, (8197), 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) [2022-01-11 01:23:48,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8197 transitions. [2022-01-11 01:23:48,485 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8197 transitions. Word has length 154 [2022-01-11 01:23:48,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:48,486 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8197 transitions. [2022-01-11 01:23:48,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:48,486 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8197 transitions. [2022-01-11 01:23:48,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:48,488 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:48,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:48,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 01:23:48,488 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:48,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:48,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1462492825, now seen corresponding path program 1 times [2022-01-11 01:23:48,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:48,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445730731] [2022-01-11 01:23:48,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:48,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:48,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:48,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:48,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445730731] [2022-01-11 01:23:48,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445730731] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:48,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:48,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:48,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009769724] [2022-01-11 01:23:48,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:48,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:48,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:48,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:48,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:48,547 INFO L87 Difference]: Start difference. First operand 5018 states and 8197 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:48,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:48,688 INFO L93 Difference]: Finished difference Result 7890 states and 12397 transitions. [2022-01-11 01:23:48,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:48,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:48,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:48,698 INFO L225 Difference]: With dead ends: 7890 [2022-01-11 01:23:48,699 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:48,705 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 [2022-01-11 01:23:48,705 INFO L933 BasicCegarLoop]: 6248 mSDtfsCounter, 6228 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6228 SdHoareTripleChecker+Valid, 6248 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 [2022-01-11 01:23:48,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6228 Valid, 6248 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:48,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:48,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:48,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6325757575757576) internal successors, (8189), 5017 states have internal predecessors, (8189), 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) [2022-01-11 01:23:48,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8189 transitions. [2022-01-11 01:23:48,935 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8189 transitions. Word has length 154 [2022-01-11 01:23:48,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:48,935 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8189 transitions. [2022-01-11 01:23:48,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:48,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8189 transitions. [2022-01-11 01:23:48,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:48,937 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:48,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:48,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 01:23:48,937 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:48,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:48,938 INFO L85 PathProgramCache]: Analyzing trace with hash 348344647, now seen corresponding path program 1 times [2022-01-11 01:23:48,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:48,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477359945] [2022-01-11 01:23:48,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:48,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:48,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:48,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:48,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477359945] [2022-01-11 01:23:48,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477359945] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:48,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:48,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:48,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396551110] [2022-01-11 01:23:48,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:48,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:48,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:48,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:48,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:48,990 INFO L87 Difference]: Start difference. First operand 5018 states and 8189 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:49,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:49,137 INFO L93 Difference]: Finished difference Result 7889 states and 12380 transitions. [2022-01-11 01:23:49,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:49,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:49,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:49,150 INFO L225 Difference]: With dead ends: 7889 [2022-01-11 01:23:49,150 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:49,155 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 [2022-01-11 01:23:49,156 INFO L933 BasicCegarLoop]: 6243 mSDtfsCounter, 6222 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6222 SdHoareTripleChecker+Valid, 6243 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 [2022-01-11 01:23:49,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6222 Valid, 6243 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:49,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:49,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:49,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.630980861244019) internal successors, (8181), 5017 states have internal predecessors, (8181), 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) [2022-01-11 01:23:49,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8181 transitions. [2022-01-11 01:23:49,320 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8181 transitions. Word has length 154 [2022-01-11 01:23:49,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:49,321 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8181 transitions. [2022-01-11 01:23:49,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:49,321 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8181 transitions. [2022-01-11 01:23:49,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:49,324 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:49,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:49,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 01:23:49,324 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:49,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:49,325 INFO L85 PathProgramCache]: Analyzing trace with hash 406758759, now seen corresponding path program 1 times [2022-01-11 01:23:49,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:49,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603688404] [2022-01-11 01:23:49,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:49,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:49,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:49,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:49,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603688404] [2022-01-11 01:23:49,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603688404] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:49,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:49,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:49,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675645112] [2022-01-11 01:23:49,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:49,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:49,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:49,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:49,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:49,380 INFO L87 Difference]: Start difference. First operand 5018 states and 8181 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:49,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:49,537 INFO L93 Difference]: Finished difference Result 7888 states and 12363 transitions. [2022-01-11 01:23:49,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:49,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:49,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:49,548 INFO L225 Difference]: With dead ends: 7888 [2022-01-11 01:23:49,548 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:49,554 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 [2022-01-11 01:23:49,556 INFO L933 BasicCegarLoop]: 6238 mSDtfsCounter, 6216 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6216 SdHoareTripleChecker+Valid, 6238 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 [2022-01-11 01:23:49,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6216 Valid, 6238 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:49,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:49,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:49,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6293859649122806) internal successors, (8173), 5017 states have internal predecessors, (8173), 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) [2022-01-11 01:23:49,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8173 transitions. [2022-01-11 01:23:49,786 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8173 transitions. Word has length 154 [2022-01-11 01:23:49,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:49,787 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8173 transitions. [2022-01-11 01:23:49,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:49,790 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8173 transitions. [2022-01-11 01:23:49,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:49,792 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:49,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:49,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 01:23:49,793 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:49,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:49,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1946661561, now seen corresponding path program 1 times [2022-01-11 01:23:49,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:49,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224690408] [2022-01-11 01:23:49,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:49,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:49,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:49,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:49,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224690408] [2022-01-11 01:23:49,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224690408] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:49,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:49,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:49,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480417366] [2022-01-11 01:23:49,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:49,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:49,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:49,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:49,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:49,847 INFO L87 Difference]: Start difference. First operand 5018 states and 8173 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:50,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:50,017 INFO L93 Difference]: Finished difference Result 7887 states and 12346 transitions. [2022-01-11 01:23:50,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:50,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:50,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:50,032 INFO L225 Difference]: With dead ends: 7887 [2022-01-11 01:23:50,033 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:50,040 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 [2022-01-11 01:23:50,041 INFO L933 BasicCegarLoop]: 6233 mSDtfsCounter, 6210 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6210 SdHoareTripleChecker+Valid, 6233 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 [2022-01-11 01:23:50,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6210 Valid, 6233 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:50,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:50,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6277910685805423) internal successors, (8165), 5017 states have internal predecessors, (8165), 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) [2022-01-11 01:23:50,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8165 transitions. [2022-01-11 01:23:50,220 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8165 transitions. Word has length 154 [2022-01-11 01:23:50,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:50,220 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8165 transitions. [2022-01-11 01:23:50,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:50,220 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8165 transitions. [2022-01-11 01:23:50,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:50,222 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:50,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:50,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 01:23:50,223 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:50,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:50,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1468389017, now seen corresponding path program 1 times [2022-01-11 01:23:50,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:50,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418828541] [2022-01-11 01:23:50,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:50,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:50,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:50,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:50,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418828541] [2022-01-11 01:23:50,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418828541] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:50,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:50,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:50,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99164676] [2022-01-11 01:23:50,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:50,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:50,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:50,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:50,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:50,288 INFO L87 Difference]: Start difference. First operand 5018 states and 8165 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:50,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:50,472 INFO L93 Difference]: Finished difference Result 7886 states and 12329 transitions. [2022-01-11 01:23:50,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:50,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:50,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:50,484 INFO L225 Difference]: With dead ends: 7886 [2022-01-11 01:23:50,484 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:50,488 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 [2022-01-11 01:23:50,489 INFO L933 BasicCegarLoop]: 6228 mSDtfsCounter, 6204 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6204 SdHoareTripleChecker+Valid, 6228 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 [2022-01-11 01:23:50,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6204 Valid, 6228 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:50,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:50,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:50,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6261961722488039) internal successors, (8157), 5017 states have internal predecessors, (8157), 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) [2022-01-11 01:23:50,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8157 transitions. [2022-01-11 01:23:50,654 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8157 transitions. Word has length 154 [2022-01-11 01:23:50,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:50,655 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8157 transitions. [2022-01-11 01:23:50,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:50,655 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8157 transitions. [2022-01-11 01:23:50,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:50,657 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:50,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:50,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 01:23:50,657 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:50,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:50,658 INFO L85 PathProgramCache]: Analyzing trace with hash 71059783, now seen corresponding path program 1 times [2022-01-11 01:23:50,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:50,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581022762] [2022-01-11 01:23:50,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:50,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:50,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:50,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:50,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581022762] [2022-01-11 01:23:50,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581022762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:50,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:50,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:50,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89707626] [2022-01-11 01:23:50,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:50,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:50,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:50,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:50,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:50,707 INFO L87 Difference]: Start difference. First operand 5018 states and 8157 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:50,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:50,935 INFO L93 Difference]: Finished difference Result 7885 states and 12312 transitions. [2022-01-11 01:23:50,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:50,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:50,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:50,946 INFO L225 Difference]: With dead ends: 7885 [2022-01-11 01:23:50,946 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:50,950 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 [2022-01-11 01:23:50,951 INFO L933 BasicCegarLoop]: 6195 mSDtfsCounter, 6062 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6062 SdHoareTripleChecker+Valid, 6313 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:50,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6062 Valid, 6313 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:23:50,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:51,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:51,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6194178628389155) internal successors, (8123), 5017 states have internal predecessors, (8123), 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) [2022-01-11 01:23:51,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8123 transitions. [2022-01-11 01:23:51,119 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8123 transitions. Word has length 154 [2022-01-11 01:23:51,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:51,120 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8123 transitions. [2022-01-11 01:23:51,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:51,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8123 transitions. [2022-01-11 01:23:51,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:51,122 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:51,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:51,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 01:23:51,122 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:51,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:51,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1448839450, now seen corresponding path program 1 times [2022-01-11 01:23:51,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:51,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657030096] [2022-01-11 01:23:51,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:51,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:51,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:51,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:51,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657030096] [2022-01-11 01:23:51,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657030096] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:51,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:51,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:51,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586487707] [2022-01-11 01:23:51,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:51,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:51,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:51,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:51,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:51,170 INFO L87 Difference]: Start difference. First operand 5018 states and 8123 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:51,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:51,404 INFO L93 Difference]: Finished difference Result 7884 states and 12243 transitions. [2022-01-11 01:23:51,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:51,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:51,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:51,416 INFO L225 Difference]: With dead ends: 7884 [2022-01-11 01:23:51,416 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:51,423 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 [2022-01-11 01:23:51,423 INFO L933 BasicCegarLoop]: 6176 mSDtfsCounter, 6043 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6043 SdHoareTripleChecker+Valid, 6293 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:51,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6043 Valid, 6293 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:51,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:51,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:51,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6126395534290272) internal successors, (8089), 5017 states have internal predecessors, (8089), 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) [2022-01-11 01:23:51,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8089 transitions. [2022-01-11 01:23:51,624 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8089 transitions. Word has length 154 [2022-01-11 01:23:51,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:51,624 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8089 transitions. [2022-01-11 01:23:51,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:51,625 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8089 transitions. [2022-01-11 01:23:51,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:51,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:51,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:51,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 01:23:51,627 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:51,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:51,627 INFO L85 PathProgramCache]: Analyzing trace with hash 461611909, now seen corresponding path program 1 times [2022-01-11 01:23:51,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:51,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032482176] [2022-01-11 01:23:51,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:51,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:51,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:51,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:51,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032482176] [2022-01-11 01:23:51,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032482176] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:51,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:51,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:51,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45634219] [2022-01-11 01:23:51,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:51,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:51,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:51,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:51,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:51,681 INFO L87 Difference]: Start difference. First operand 5018 states and 8089 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:51,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:51,869 INFO L93 Difference]: Finished difference Result 7883 states and 12174 transitions. [2022-01-11 01:23:51,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:51,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:51,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:51,880 INFO L225 Difference]: With dead ends: 7883 [2022-01-11 01:23:51,881 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:51,885 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 [2022-01-11 01:23:51,886 INFO L933 BasicCegarLoop]: 6157 mSDtfsCounter, 6024 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6024 SdHoareTripleChecker+Valid, 6273 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:51,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6024 Valid, 6273 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:51,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:52,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:52,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6058612440191387) internal successors, (8055), 5017 states have internal predecessors, (8055), 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) [2022-01-11 01:23:52,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8055 transitions. [2022-01-11 01:23:52,077 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8055 transitions. Word has length 154 [2022-01-11 01:23:52,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:52,077 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8055 transitions. [2022-01-11 01:23:52,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:52,078 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8055 transitions. [2022-01-11 01:23:52,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:52,079 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:52,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:52,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 01:23:52,082 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:52,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:52,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1884201052, now seen corresponding path program 1 times [2022-01-11 01:23:52,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:52,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881028911] [2022-01-11 01:23:52,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:52,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:52,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:52,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:52,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881028911] [2022-01-11 01:23:52,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881028911] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:52,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:52,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:52,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293393408] [2022-01-11 01:23:52,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:52,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:52,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:52,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:52,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:52,138 INFO L87 Difference]: Start difference. First operand 5018 states and 8055 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:52,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:52,349 INFO L93 Difference]: Finished difference Result 7882 states and 12105 transitions. [2022-01-11 01:23:52,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:52,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:52,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:52,360 INFO L225 Difference]: With dead ends: 7882 [2022-01-11 01:23:52,361 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:52,367 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 [2022-01-11 01:23:52,368 INFO L933 BasicCegarLoop]: 6138 mSDtfsCounter, 6005 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6005 SdHoareTripleChecker+Valid, 6253 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:52,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6005 Valid, 6253 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:52,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:52,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:52,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5990829346092503) internal successors, (8021), 5017 states have internal predecessors, (8021), 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) [2022-01-11 01:23:52,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8021 transitions. [2022-01-11 01:23:52,590 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8021 transitions. Word has length 154 [2022-01-11 01:23:52,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:52,590 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8021 transitions. [2022-01-11 01:23:52,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:52,590 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8021 transitions. [2022-01-11 01:23:52,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:52,592 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:52,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:52,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 01:23:52,593 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:52,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:52,593 INFO L85 PathProgramCache]: Analyzing trace with hash -29955389, now seen corresponding path program 1 times [2022-01-11 01:23:52,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:52,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022138497] [2022-01-11 01:23:52,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:52,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:52,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:52,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:52,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022138497] [2022-01-11 01:23:52,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022138497] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:52,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:52,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:52,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753070383] [2022-01-11 01:23:52,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:52,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:52,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:52,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:52,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:52,647 INFO L87 Difference]: Start difference. First operand 5018 states and 8021 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:52,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:52,884 INFO L93 Difference]: Finished difference Result 7880 states and 12034 transitions. [2022-01-11 01:23:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:52,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:52,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:52,896 INFO L225 Difference]: With dead ends: 7880 [2022-01-11 01:23:52,896 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:52,903 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 [2022-01-11 01:23:52,903 INFO L933 BasicCegarLoop]: 6119 mSDtfsCounter, 5985 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5985 SdHoareTripleChecker+Valid, 6233 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:52,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5985 Valid, 6233 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:52,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:53,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:53,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.592304625199362) internal successors, (7987), 5017 states have internal predecessors, (7987), 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) [2022-01-11 01:23:53,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7987 transitions. [2022-01-11 01:23:53,121 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7987 transitions. Word has length 154 [2022-01-11 01:23:53,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:53,121 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7987 transitions. [2022-01-11 01:23:53,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:53,122 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7987 transitions. [2022-01-11 01:23:53,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:53,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:53,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:53,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 01:23:53,124 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:53,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:53,124 INFO L85 PathProgramCache]: Analyzing trace with hash -85552030, now seen corresponding path program 1 times [2022-01-11 01:23:53,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:53,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518535361] [2022-01-11 01:23:53,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:53,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:53,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:53,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:53,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518535361] [2022-01-11 01:23:53,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518535361] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:53,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:53,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:53,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90240836] [2022-01-11 01:23:53,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:53,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:53,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:53,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:53,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:53,174 INFO L87 Difference]: Start difference. First operand 5018 states and 7987 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:53,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:53,406 INFO L93 Difference]: Finished difference Result 7879 states and 11965 transitions. [2022-01-11 01:23:53,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:53,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:53,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:53,419 INFO L225 Difference]: With dead ends: 7879 [2022-01-11 01:23:53,419 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:53,426 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 [2022-01-11 01:23:53,427 INFO L933 BasicCegarLoop]: 6100 mSDtfsCounter, 5966 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5966 SdHoareTripleChecker+Valid, 6213 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:53,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5966 Valid, 6213 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:53,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:53,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:53,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5855263157894737) internal successors, (7953), 5017 states have internal predecessors, (7953), 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) [2022-01-11 01:23:53,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7953 transitions. [2022-01-11 01:23:53,655 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7953 transitions. Word has length 154 [2022-01-11 01:23:53,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:53,655 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7953 transitions. [2022-01-11 01:23:53,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:53,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7953 transitions. [2022-01-11 01:23:53,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:53,657 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:53,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:53,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 01:23:53,657 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:53,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:53,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1188647551, now seen corresponding path program 1 times [2022-01-11 01:23:53,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:53,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992929313] [2022-01-11 01:23:53,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:53,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:53,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:53,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:53,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992929313] [2022-01-11 01:23:53,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992929313] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:53,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:53,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:53,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012183100] [2022-01-11 01:23:53,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:53,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:53,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:53,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:53,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:53,703 INFO L87 Difference]: Start difference. First operand 5018 states and 7953 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:53,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:53,890 INFO L93 Difference]: Finished difference Result 7878 states and 11896 transitions. [2022-01-11 01:23:53,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:53,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:53,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:53,902 INFO L225 Difference]: With dead ends: 7878 [2022-01-11 01:23:53,902 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:53,908 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 [2022-01-11 01:23:53,908 INFO L933 BasicCegarLoop]: 6081 mSDtfsCounter, 5947 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5947 SdHoareTripleChecker+Valid, 6193 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:53,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5947 Valid, 6193 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:53,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:54,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:54,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5787480063795853) internal successors, (7919), 5017 states have internal predecessors, (7919), 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) [2022-01-11 01:23:54,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7919 transitions. [2022-01-11 01:23:54,082 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7919 transitions. Word has length 154 [2022-01-11 01:23:54,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:54,083 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7919 transitions. [2022-01-11 01:23:54,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:54,083 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7919 transitions. [2022-01-11 01:23:54,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:54,084 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:54,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:54,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 01:23:54,085 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:54,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:54,085 INFO L85 PathProgramCache]: Analyzing trace with hash 396637600, now seen corresponding path program 1 times [2022-01-11 01:23:54,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:54,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055107931] [2022-01-11 01:23:54,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:54,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:54,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:54,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:54,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055107931] [2022-01-11 01:23:54,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055107931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:54,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:54,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:54,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476123512] [2022-01-11 01:23:54,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:54,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:54,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:54,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:54,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:54,135 INFO L87 Difference]: Start difference. First operand 5018 states and 7919 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:54,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:54,365 INFO L93 Difference]: Finished difference Result 7877 states and 11827 transitions. [2022-01-11 01:23:54,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:54,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:54,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:54,378 INFO L225 Difference]: With dead ends: 7877 [2022-01-11 01:23:54,378 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:54,384 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 [2022-01-11 01:23:54,384 INFO L933 BasicCegarLoop]: 6062 mSDtfsCounter, 5928 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5928 SdHoareTripleChecker+Valid, 6173 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:54,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5928 Valid, 6173 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:54,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:54,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:54,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.571969696969697) internal successors, (7885), 5017 states have internal predecessors, (7885), 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) [2022-01-11 01:23:54,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7885 transitions. [2022-01-11 01:23:54,570 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7885 transitions. Word has length 154 [2022-01-11 01:23:54,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:54,570 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7885 transitions. [2022-01-11 01:23:54,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:54,570 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7885 transitions. [2022-01-11 01:23:54,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:54,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:54,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:54,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 01:23:54,572 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:54,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:54,572 INFO L85 PathProgramCache]: Analyzing trace with hash 2003901759, now seen corresponding path program 1 times [2022-01-11 01:23:54,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:54,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398747505] [2022-01-11 01:23:54,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:54,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:54,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:54,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:54,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398747505] [2022-01-11 01:23:54,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398747505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:54,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:54,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:54,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469972119] [2022-01-11 01:23:54,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:54,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:54,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:54,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:54,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:54,625 INFO L87 Difference]: Start difference. First operand 5018 states and 7885 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:54,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:54,830 INFO L93 Difference]: Finished difference Result 7876 states and 11758 transitions. [2022-01-11 01:23:54,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:54,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:54,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:54,844 INFO L225 Difference]: With dead ends: 7876 [2022-01-11 01:23:54,844 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:54,851 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 [2022-01-11 01:23:54,852 INFO L933 BasicCegarLoop]: 6043 mSDtfsCounter, 5909 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5909 SdHoareTripleChecker+Valid, 6153 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:54,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5909 Valid, 6153 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:54,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:55,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:55,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5651913875598087) internal successors, (7851), 5017 states have internal predecessors, (7851), 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) [2022-01-11 01:23:55,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7851 transitions. [2022-01-11 01:23:55,023 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7851 transitions. Word has length 154 [2022-01-11 01:23:55,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:55,023 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7851 transitions. [2022-01-11 01:23:55,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:55,024 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7851 transitions. [2022-01-11 01:23:55,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:55,025 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:55,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:55,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 01:23:55,025 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:55,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:55,026 INFO L85 PathProgramCache]: Analyzing trace with hash 494945246, now seen corresponding path program 1 times [2022-01-11 01:23:55,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:55,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622256057] [2022-01-11 01:23:55,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:55,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:55,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:55,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:55,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622256057] [2022-01-11 01:23:55,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622256057] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:55,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:55,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:55,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406273502] [2022-01-11 01:23:55,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:55,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:55,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:55,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:55,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:55,070 INFO L87 Difference]: Start difference. First operand 5018 states and 7851 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:55,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:55,320 INFO L93 Difference]: Finished difference Result 7875 states and 11689 transitions. [2022-01-11 01:23:55,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:55,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:55,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:55,332 INFO L225 Difference]: With dead ends: 7875 [2022-01-11 01:23:55,332 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:55,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:55,341 INFO L933 BasicCegarLoop]: 6024 mSDtfsCounter, 5890 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5890 SdHoareTripleChecker+Valid, 6133 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:55,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5890 Valid, 6133 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:55,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:55,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:55,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5584130781499204) internal successors, (7817), 5017 states have internal predecessors, (7817), 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) [2022-01-11 01:23:55,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7817 transitions. [2022-01-11 01:23:55,537 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7817 transitions. Word has length 154 [2022-01-11 01:23:55,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:55,537 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7817 transitions. [2022-01-11 01:23:55,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:55,538 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7817 transitions. [2022-01-11 01:23:55,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:55,539 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:55,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:55,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 01:23:55,540 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:55,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:55,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1353824765, now seen corresponding path program 1 times [2022-01-11 01:23:55,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:55,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840666201] [2022-01-11 01:23:55,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:55,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:55,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:55,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:55,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840666201] [2022-01-11 01:23:55,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840666201] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:55,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:55,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:55,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846359288] [2022-01-11 01:23:55,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:55,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:55,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:55,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:55,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:55,591 INFO L87 Difference]: Start difference. First operand 5018 states and 7817 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:55,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:55,805 INFO L93 Difference]: Finished difference Result 7874 states and 11620 transitions. [2022-01-11 01:23:55,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:55,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:55,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:55,816 INFO L225 Difference]: With dead ends: 7874 [2022-01-11 01:23:55,817 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:23:55,839 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 [2022-01-11 01:23:55,840 INFO L933 BasicCegarLoop]: 6005 mSDtfsCounter, 5871 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5871 SdHoareTripleChecker+Valid, 6113 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:55,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5871 Valid, 6113 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:55,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:23:56,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:23:56,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5516347687400318) internal successors, (7783), 5017 states have internal predecessors, (7783), 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) [2022-01-11 01:23:56,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7783 transitions. [2022-01-11 01:23:56,063 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7783 transitions. Word has length 154 [2022-01-11 01:23:56,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:56,063 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7783 transitions. [2022-01-11 01:23:56,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:56,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7783 transitions. [2022-01-11 01:23:56,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:56,065 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:56,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:56,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 01:23:56,065 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:56,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:56,066 INFO L85 PathProgramCache]: Analyzing trace with hash 104218396, now seen corresponding path program 1 times [2022-01-11 01:23:56,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:56,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026065317] [2022-01-11 01:23:56,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:56,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:56,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:56,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:56,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026065317] [2022-01-11 01:23:56,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026065317] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:56,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:56,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:23:56,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827180822] [2022-01-11 01:23:56,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:56,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:23:56,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:56,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:23:56,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:23:56,144 INFO L87 Difference]: Start difference. First operand 5018 states and 7783 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 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) [2022-01-11 01:23:56,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:56,689 INFO L93 Difference]: Finished difference Result 8900 states and 12971 transitions. [2022-01-11 01:23:56,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:23:56,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:56,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:56,703 INFO L225 Difference]: With dead ends: 8900 [2022-01-11 01:23:56,703 INFO L226 Difference]: Without dead ends: 6058 [2022-01-11 01:23:56,707 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 [2022-01-11 01:23:56,708 INFO L933 BasicCegarLoop]: 6156 mSDtfsCounter, 5752 mSDsluCounter, 14058 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5752 SdHoareTripleChecker+Valid, 20214 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:56,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5752 Valid, 20214 Invalid, 168 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:23:56,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6058 states. [2022-01-11 01:23:56,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6058 to 5024. [2022-01-11 01:23:56,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5024 states, 5022 states have (on average 1.5457984866587018) internal successors, (7763), 5023 states have internal predecessors, (7763), 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) [2022-01-11 01:23:56,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5024 states to 5024 states and 7763 transitions. [2022-01-11 01:23:56,959 INFO L78 Accepts]: Start accepts. Automaton has 5024 states and 7763 transitions. Word has length 154 [2022-01-11 01:23:56,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:56,960 INFO L470 AbstractCegarLoop]: Abstraction has 5024 states and 7763 transitions. [2022-01-11 01:23:56,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 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) [2022-01-11 01:23:56,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5024 states and 7763 transitions. [2022-01-11 01:23:56,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:56,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:56,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:56,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 01:23:56,962 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:56,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:56,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1598130845, now seen corresponding path program 1 times [2022-01-11 01:23:56,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:56,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855779846] [2022-01-11 01:23:56,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:56,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:57,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:57,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855779846] [2022-01-11 01:23:57,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855779846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:57,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:57,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:57,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100565816] [2022-01-11 01:23:57,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:57,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:57,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:57,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:57,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:57,029 INFO L87 Difference]: Start difference. First operand 5024 states and 7763 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:57,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:57,410 INFO L93 Difference]: Finished difference Result 10406 states and 14809 transitions. [2022-01-11 01:23:57,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:57,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:57,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:57,425 INFO L225 Difference]: With dead ends: 10406 [2022-01-11 01:23:57,425 INFO L226 Difference]: Without dead ends: 7574 [2022-01-11 01:23:57,434 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 [2022-01-11 01:23:57,435 INFO L933 BasicCegarLoop]: 5992 mSDtfsCounter, 5785 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5785 SdHoareTripleChecker+Valid, 7820 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:57,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5785 Valid, 7820 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:57,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7574 states. [2022-01-11 01:23:57,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7574 to 7568. [2022-01-11 01:23:57,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7568 states, 7566 states have (on average 1.4623314829500396) internal successors, (11064), 7567 states have internal predecessors, (11064), 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) [2022-01-11 01:23:57,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7568 states to 7568 states and 11064 transitions. [2022-01-11 01:23:57,859 INFO L78 Accepts]: Start accepts. Automaton has 7568 states and 11064 transitions. Word has length 154 [2022-01-11 01:23:57,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:57,859 INFO L470 AbstractCegarLoop]: Abstraction has 7568 states and 11064 transitions. [2022-01-11 01:23:57,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:23:57,859 INFO L276 IsEmpty]: Start isEmpty. Operand 7568 states and 11064 transitions. [2022-01-11 01:23:57,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:57,863 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:57,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:57,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 01:23:57,863 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:57,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:57,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1493901596, now seen corresponding path program 1 times [2022-01-11 01:23:57,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:57,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898800736] [2022-01-11 01:23:57,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:57,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:57,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:57,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:57,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898800736] [2022-01-11 01:23:57,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898800736] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:57,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:57,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:23:57,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911690646] [2022-01-11 01:23:57,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:57,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:23:57,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:57,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:23:57,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:23:57,936 INFO L87 Difference]: Start difference. First operand 7568 states and 11064 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 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) [2022-01-11 01:23:58,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:58,718 INFO L93 Difference]: Finished difference Result 16418 states and 22711 transitions. [2022-01-11 01:23:58,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:23:58,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 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 154 [2022-01-11 01:23:58,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:58,741 INFO L225 Difference]: With dead ends: 16418 [2022-01-11 01:23:58,741 INFO L226 Difference]: Without dead ends: 11060 [2022-01-11 01:23:58,755 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 [2022-01-11 01:23:58,756 INFO L933 BasicCegarLoop]: 6045 mSDtfsCounter, 4940 mSDsluCounter, 15764 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4940 SdHoareTripleChecker+Valid, 21809 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:58,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4940 Valid, 21809 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:23:58,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11060 states. [2022-01-11 01:23:59,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11060 to 7580. [2022-01-11 01:23:59,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7580 states, 7578 states have (on average 1.4551332805489574) internal successors, (11027), 7579 states have internal predecessors, (11027), 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) [2022-01-11 01:23:59,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7580 states to 7580 states and 11027 transitions. [2022-01-11 01:23:59,290 INFO L78 Accepts]: Start accepts. Automaton has 7580 states and 11027 transitions. Word has length 154 [2022-01-11 01:23:59,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:59,291 INFO L470 AbstractCegarLoop]: Abstraction has 7580 states and 11027 transitions. [2022-01-11 01:23:59,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 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) [2022-01-11 01:23:59,291 INFO L276 IsEmpty]: Start isEmpty. Operand 7580 states and 11027 transitions. [2022-01-11 01:23:59,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:23:59,292 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:59,292 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:59,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 01:23:59,293 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:59,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:59,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1010226269, now seen corresponding path program 1 times [2022-01-11 01:23:59,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:59,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389547686] [2022-01-11 01:23:59,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:59,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:59,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:59,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:59,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389547686] [2022-01-11 01:23:59,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389547686] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:59,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:59,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:23:59,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316658134] [2022-01-11 01:23:59,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:59,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:23:59,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:59,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:23:59,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:23:59,364 INFO L87 Difference]: Start difference. First operand 7580 states and 11027 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 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) [2022-01-11 01:24:00,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:24:00,236 INFO L93 Difference]: Finished difference Result 16741 states and 22977 transitions. [2022-01-11 01:24:00,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:24:00,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 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 154 [2022-01-11 01:24:00,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:24:00,260 INFO L225 Difference]: With dead ends: 16741 [2022-01-11 01:24:00,260 INFO L226 Difference]: Without dead ends: 11378 [2022-01-11 01:24:00,273 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 [2022-01-11 01:24:00,274 INFO L933 BasicCegarLoop]: 6013 mSDtfsCounter, 4760 mSDsluCounter, 16069 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4760 SdHoareTripleChecker+Valid, 22082 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:24:00,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4760 Valid, 22082 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:24:00,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11378 states. [2022-01-11 01:24:00,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11378 to 7592. [2022-01-11 01:24:00,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7592 states, 7590 states have (on average 1.447957839262187) internal successors, (10990), 7591 states have internal predecessors, (10990), 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) [2022-01-11 01:24:00,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7592 states to 7592 states and 10990 transitions. [2022-01-11 01:24:00,744 INFO L78 Accepts]: Start accepts. Automaton has 7592 states and 10990 transitions. Word has length 154 [2022-01-11 01:24:00,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:24:00,744 INFO L470 AbstractCegarLoop]: Abstraction has 7592 states and 10990 transitions. [2022-01-11 01:24:00,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 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) [2022-01-11 01:24:00,745 INFO L276 IsEmpty]: Start isEmpty. Operand 7592 states and 10990 transitions. [2022-01-11 01:24:00,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:24:00,746 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:24:00,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:24:00,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 01:24:00,747 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:24:00,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:24:00,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1980347298, now seen corresponding path program 1 times [2022-01-11 01:24:00,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:24:00,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202594885] [2022-01-11 01:24:00,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:24:00,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:24:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:24:00,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:24:00,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:24:00,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202594885] [2022-01-11 01:24:00,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202594885] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:24:00,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:24:00,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:24:00,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142929935] [2022-01-11 01:24:00,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:24:00,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:24:00,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:24:00,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:24:00,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:24:00,828 INFO L87 Difference]: Start difference. First operand 7592 states and 10990 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:24:01,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:24:01,237 INFO L93 Difference]: Finished difference Result 13043 states and 17989 transitions. [2022-01-11 01:24:01,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:24:01,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:24:01,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:24:01,247 INFO L225 Difference]: With dead ends: 13043 [2022-01-11 01:24:01,248 INFO L226 Difference]: Without dead ends: 7592 [2022-01-11 01:24:01,255 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 [2022-01-11 01:24:01,255 INFO L933 BasicCegarLoop]: 5969 mSDtfsCounter, 5857 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5857 SdHoareTripleChecker+Valid, 5969 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 [2022-01-11 01:24:01,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5857 Valid, 5969 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:24:01,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7592 states. [2022-01-11 01:24:01,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7592 to 7592. [2022-01-11 01:24:01,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7592 states, 7590 states have (on average 1.4461133069828722) internal successors, (10976), 7591 states have internal predecessors, (10976), 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) [2022-01-11 01:24:01,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7592 states to 7592 states and 10976 transitions. [2022-01-11 01:24:01,646 INFO L78 Accepts]: Start accepts. Automaton has 7592 states and 10976 transitions. Word has length 154 [2022-01-11 01:24:01,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:24:01,646 INFO L470 AbstractCegarLoop]: Abstraction has 7592 states and 10976 transitions. [2022-01-11 01:24:01,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:24:01,646 INFO L276 IsEmpty]: Start isEmpty. Operand 7592 states and 10976 transitions. [2022-01-11 01:24:01,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:24:01,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:24:01,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:24:01,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 01:24:01,648 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:24:01,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:24:01,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1650581537, now seen corresponding path program 1 times [2022-01-11 01:24:01,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:24:01,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839413059] [2022-01-11 01:24:01,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:24:01,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:24:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:24:01,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:24:01,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:24:01,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839413059] [2022-01-11 01:24:01,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839413059] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:24:01,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:24:01,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:24:01,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265070463] [2022-01-11 01:24:01,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:24:01,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:24:01,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:24:01,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:24:01,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:24:01,715 INFO L87 Difference]: Start difference. First operand 7592 states and 10976 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:24:02,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:24:02,198 INFO L93 Difference]: Finished difference Result 13029 states and 17947 transitions. [2022-01-11 01:24:02,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:24:02,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:24:02,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:24:02,211 INFO L225 Difference]: With dead ends: 13029 [2022-01-11 01:24:02,211 INFO L226 Difference]: Without dead ends: 7592 [2022-01-11 01:24:02,219 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 [2022-01-11 01:24:02,220 INFO L933 BasicCegarLoop]: 5938 mSDtfsCounter, 5717 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5717 SdHoareTripleChecker+Valid, 6042 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:24:02,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5717 Valid, 6042 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:24:02,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7592 states. [2022-01-11 01:24:02,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7592 to 7592. [2022-01-11 01:24:02,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7592 states, 7590 states have (on average 1.4409749670619236) internal successors, (10937), 7591 states have internal predecessors, (10937), 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) [2022-01-11 01:24:02,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7592 states to 7592 states and 10937 transitions. [2022-01-11 01:24:02,604 INFO L78 Accepts]: Start accepts. Automaton has 7592 states and 10937 transitions. Word has length 154 [2022-01-11 01:24:02,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:24:02,604 INFO L470 AbstractCegarLoop]: Abstraction has 7592 states and 10937 transitions. [2022-01-11 01:24:02,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:24:02,604 INFO L276 IsEmpty]: Start isEmpty. Operand 7592 states and 10937 transitions. [2022-01-11 01:24:02,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:24:02,605 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:24:02,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:24:02,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 01:24:02,606 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:24:02,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:24:02,606 INFO L85 PathProgramCache]: Analyzing trace with hash -405817056, now seen corresponding path program 1 times [2022-01-11 01:24:02,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:24:02,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7857248] [2022-01-11 01:24:02,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:24:02,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:24:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:24:02,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:24:02,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:24:02,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7857248] [2022-01-11 01:24:02,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7857248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:24:02,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:24:02,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:24:02,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131041604] [2022-01-11 01:24:02,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:24:02,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:24:02,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:24:02,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:24:02,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:24:02,717 INFO L87 Difference]: Start difference. First operand 7592 states and 10937 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:24:03,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:24:03,601 INFO L93 Difference]: Finished difference Result 18274 states and 24579 transitions. [2022-01-11 01:24:03,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:24:03,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2022-01-11 01:24:03,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:24:03,618 INFO L225 Difference]: With dead ends: 18274 [2022-01-11 01:24:03,618 INFO L226 Difference]: Without dead ends: 12846 [2022-01-11 01:24:03,624 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 [2022-01-11 01:24:03,625 INFO L933 BasicCegarLoop]: 5938 mSDtfsCounter, 5767 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5767 SdHoareTripleChecker+Valid, 7721 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:24:03,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5767 Valid, 7721 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:24:03,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12846 states. [2022-01-11 01:24:04,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12846 to 12504. [2022-01-11 01:24:04,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12504 states, 12502 states have (on average 1.3734602463605823) internal successors, (17171), 12503 states have internal predecessors, (17171), 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) [2022-01-11 01:24:04,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12504 states to 12504 states and 17171 transitions. [2022-01-11 01:24:04,352 INFO L78 Accepts]: Start accepts. Automaton has 12504 states and 17171 transitions. Word has length 154 [2022-01-11 01:24:04,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:24:04,352 INFO L470 AbstractCegarLoop]: Abstraction has 12504 states and 17171 transitions. [2022-01-11 01:24:04,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-01-11 01:24:04,352 INFO L276 IsEmpty]: Start isEmpty. Operand 12504 states and 17171 transitions. [2022-01-11 01:24:04,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 01:24:04,359 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:24:04,359 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:24:04,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 01:24:04,359 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:24:04,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:24:04,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1997236647, now seen corresponding path program 1 times [2022-01-11 01:24:04,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:24:04,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966751362] [2022-01-11 01:24:04,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:24:04,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:24:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:24:04,445 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:24:04,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:24:04,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966751362] [2022-01-11 01:24:04,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966751362] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:24:04,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:24:04,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:24:04,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758162664] [2022-01-11 01:24:04,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:24:04,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:24:04,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:24:04,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:24:04,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:24:04,447 INFO L87 Difference]: Start difference. First operand 12504 states and 17171 transitions. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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) [2022-01-11 01:24:05,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:24:05,812 INFO L93 Difference]: Finished difference Result 32883 states and 43137 transitions. [2022-01-11 01:24:05,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:24:05,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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 250 [2022-01-11 01:24:05,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:24:05,842 INFO L225 Difference]: With dead ends: 32883 [2022-01-11 01:24:05,843 INFO L226 Difference]: Without dead ends: 22549 [2022-01-11 01:24:05,855 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 [2022-01-11 01:24:05,856 INFO L933 BasicCegarLoop]: 5935 mSDtfsCounter, 5797 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5797 SdHoareTripleChecker+Valid, 7718 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:24:05,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5797 Valid, 7718 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:24:05,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22549 states. [2022-01-11 01:24:07,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22549 to 21927. [2022-01-11 01:24:07,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21927 states, 21925 states have (on average 1.3280273660205246) internal successors, (29117), 21926 states have internal predecessors, (29117), 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) [2022-01-11 01:24:07,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21927 states to 21927 states and 29117 transitions. [2022-01-11 01:24:07,251 INFO L78 Accepts]: Start accepts. Automaton has 21927 states and 29117 transitions. Word has length 250 [2022-01-11 01:24:07,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:24:07,252 INFO L470 AbstractCegarLoop]: Abstraction has 21927 states and 29117 transitions. [2022-01-11 01:24:07,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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) [2022-01-11 01:24:07,252 INFO L276 IsEmpty]: Start isEmpty. Operand 21927 states and 29117 transitions. [2022-01-11 01:24:07,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 01:24:07,267 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:24:07,267 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:24:07,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-11 01:24:07,267 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:24:07,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:24:07,268 INFO L85 PathProgramCache]: Analyzing trace with hash 463387111, now seen corresponding path program 1 times [2022-01-11 01:24:07,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:24:07,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240936774] [2022-01-11 01:24:07,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:24:07,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:24:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:24:07,353 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:24:07,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:24:07,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240936774] [2022-01-11 01:24:07,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240936774] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:24:07,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:24:07,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:24:07,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821928982] [2022-01-11 01:24:07,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:24:07,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:24:07,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:24:07,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:24:07,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:24:07,355 INFO L87 Difference]: Start difference. First operand 21927 states and 29117 transitions. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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) [2022-01-11 01:24:09,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:24:09,854 INFO L93 Difference]: Finished difference Result 60153 states and 77329 transitions. [2022-01-11 01:24:09,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:24:09,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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 250 [2022-01-11 01:24:09,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:24:09,916 INFO L225 Difference]: With dead ends: 60153 [2022-01-11 01:24:09,916 INFO L226 Difference]: Without dead ends: 40495 [2022-01-11 01:24:09,947 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 [2022-01-11 01:24:09,947 INFO L933 BasicCegarLoop]: 7166 mSDtfsCounter, 5548 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5548 SdHoareTripleChecker+Valid, 9140 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 [2022-01-11 01:24:09,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5548 Valid, 9140 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:24:09,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40495 states. [2022-01-11 01:24:12,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40495 to 40493. [2022-01-11 01:24:12,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40493 states, 40491 states have (on average 1.291225210540614) internal successors, (52283), 40492 states have internal predecessors, (52283), 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) [2022-01-11 01:24:12,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40493 states to 40493 states and 52283 transitions. [2022-01-11 01:24:12,790 INFO L78 Accepts]: Start accepts. Automaton has 40493 states and 52283 transitions. Word has length 250 [2022-01-11 01:24:12,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:24:12,791 INFO L470 AbstractCegarLoop]: Abstraction has 40493 states and 52283 transitions. [2022-01-11 01:24:12,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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) [2022-01-11 01:24:12,791 INFO L276 IsEmpty]: Start isEmpty. Operand 40493 states and 52283 transitions. [2022-01-11 01:24:12,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 01:24:12,810 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:24:12,811 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:24:12,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-11 01:24:12,811 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:24:12,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:24:12,811 INFO L85 PathProgramCache]: Analyzing trace with hash 292547654, now seen corresponding path program 1 times [2022-01-11 01:24:12,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:24:12,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438950382] [2022-01-11 01:24:12,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:24:12,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:24:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:24:12,853 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 01:24:12,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:24:12,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438950382] [2022-01-11 01:24:12,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438950382] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:24:12,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:24:12,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:24:12,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089510179] [2022-01-11 01:24:12,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:24:12,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:24:12,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:24:12,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:24:12,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:24:12,855 INFO L87 Difference]: Start difference. First operand 40493 states and 52283 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2022-01-11 01:24:15,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:24:15,599 INFO L93 Difference]: Finished difference Result 78575 states and 100260 transitions. [2022-01-11 01:24:15,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:24:15,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 250 [2022-01-11 01:24:15,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:24:15,664 INFO L225 Difference]: With dead ends: 78575 [2022-01-11 01:24:15,664 INFO L226 Difference]: Without dead ends: 40351 [2022-01-11 01:24:15,693 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 [2022-01-11 01:24:15,694 INFO L933 BasicCegarLoop]: 5950 mSDtfsCounter, 1988 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1988 SdHoareTripleChecker+Valid, 9908 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 [2022-01-11 01:24:15,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1988 Valid, 9908 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:24:15,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40351 states.