/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label42+token_ring.03.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 13:34:50,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 13:34:50,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 13:34:50,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 13:34:50,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 13:34:50,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 13:34:50,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 13:34:50,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 13:34:50,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 13:34:50,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 13:34:50,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 13:34:50,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 13:34:50,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 13:34:50,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 13:34:50,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 13:34:50,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 13:34:50,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 13:34:50,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 13:34:50,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 13:34:50,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 13:34:50,563 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 13:34:50,585 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 13:34:50,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 13:34:50,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 13:34:50,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 13:34:50,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 13:34:50,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 13:34:50,587 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 13:34:50,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 13:34:50,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 13:34:50,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 13:34:50,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 13:34:50,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 13:34:50,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 13:34:50,588 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 13:34:50,588 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 13:34:50,588 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 13:34:50,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 13:34:50,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 13:34:50,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 13:34:50,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 13:34:50,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 13:34:50,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:34:50,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 13:34:50,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 13:34:50,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 13:34:50,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 13:34:50,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 13:34:50,590 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 13:34:50,590 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 13:34:50,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 13:34:50,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 13:34:50,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 13:34:50,591 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 13:34:50,591 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 13:34:50,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 13:34:50,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 13:34:50,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 13:34:50,776 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 13:34:50,778 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 13:34:50,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label42+token_ring.03.cil-1.c [2022-01-10 13:34:50,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44969670b/5a8e60507b60465787fddd7f70e6a2ff/FLAGca5d7bb59 [2022-01-10 13:34:51,490 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 13:34:51,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.03.cil-1.c [2022-01-10 13:34:51,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44969670b/5a8e60507b60465787fddd7f70e6a2ff/FLAGca5d7bb59 [2022-01-10 13:34:51,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44969670b/5a8e60507b60465787fddd7f70e6a2ff [2022-01-10 13:34:51,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 13:34:51,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 13:34:51,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 13:34:51,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 13:34:51,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 13:34:51,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:34:51" (1/1) ... [2022-01-10 13:34:51,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67b6f4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:34:51, skipping insertion in model container [2022-01-10 13:34:51,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:34:51" (1/1) ... [2022-01-10 13:34:51,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 13:34:51,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 13:34:52,944 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_label42+token_ring.03.cil-1.c[378560,378573] [2022-01-10 13:34:52,965 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_label42+token_ring.03.cil-1.c[383339,383352] [2022-01-10 13:34:53,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:34:53,132 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 13:34:53,702 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_label42+token_ring.03.cil-1.c[378560,378573] [2022-01-10 13:34:53,708 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_label42+token_ring.03.cil-1.c[383339,383352] [2022-01-10 13:34:53,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:34:53,773 INFO L208 MainTranslator]: Completed translation [2022-01-10 13:34:53,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:34:53 WrapperNode [2022-01-10 13:34:53,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 13:34:53,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 13:34:53,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 13:34:53,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 13:34:53,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:34:53" (1/1) ... [2022-01-10 13:34:53,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:34:53" (1/1) ... [2022-01-10 13:34:54,226 INFO L137 Inliner]: procedures = 51, calls = 51, calls flagged for inlining = 46, calls inlined = 73, statements flattened = 13160 [2022-01-10 13:34:54,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 13:34:54,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 13:34:54,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 13:34:54,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 13:34:54,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:34:53" (1/1) ... [2022-01-10 13:34:54,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:34:53" (1/1) ... [2022-01-10 13:34:54,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:34:53" (1/1) ... [2022-01-10 13:34:54,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:34:53" (1/1) ... [2022-01-10 13:34:54,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:34:53" (1/1) ... [2022-01-10 13:34:54,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:34:53" (1/1) ... [2022-01-10 13:34:54,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:34:53" (1/1) ... [2022-01-10 13:34:54,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 13:34:54,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 13:34:54,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 13:34:54,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 13:34:54,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:34:53" (1/1) ... [2022-01-10 13:34:54,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:34:54,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 13:34:54,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 13:34:54,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 13:34:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 13:34:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 13:34:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 13:34:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 13:34:54,862 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 13:34:54,864 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 13:35:01,538 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 13:35:01,562 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 13:35:01,562 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-01-10 13:35:01,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:35:01 BoogieIcfgContainer [2022-01-10 13:35:01,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 13:35:01,566 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 13:35:01,566 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 13:35:01,567 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 13:35:01,569 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:35:01" (1/1) ... [2022-01-10 13:35:02,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:35:02 BasicIcfg [2022-01-10 13:35:02,860 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 13:35:02,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 13:35:02,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 13:35:02,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 13:35:02,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:34:51" (1/4) ... [2022-01-10 13:35:02,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab39bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:35:02, skipping insertion in model container [2022-01-10 13:35:02,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:34:53" (2/4) ... [2022-01-10 13:35:02,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab39bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:35:02, skipping insertion in model container [2022-01-10 13:35:02,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:35:01" (3/4) ... [2022-01-10 13:35:02,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab39bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:35:02, skipping insertion in model container [2022-01-10 13:35:02,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:35:02" (4/4) ... [2022-01-10 13:35:02,865 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.03.cil-1.cTransformedIcfg [2022-01-10 13:35:02,869 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 13:35:02,869 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 13:35:02,914 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 13:35:02,919 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 13:35:02,919 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 13:35:02,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 2516 states, 2512 states have (on average 1.8288216560509554) internal successors, (4594), 2515 states have internal predecessors, (4594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:02,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 13:35:02,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:02,965 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] [2022-01-10 13:35:02,965 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:02,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:02,969 INFO L85 PathProgramCache]: Analyzing trace with hash -202657724, now seen corresponding path program 1 times [2022-01-10 13:35:02,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:02,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328729674] [2022-01-10 13:35:02,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:02,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:03,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:03,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:03,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328729674] [2022-01-10 13:35:03,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328729674] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:03,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:03,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:03,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277945164] [2022-01-10 13:35:03,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:03,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:03,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:03,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:03,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:03,157 INFO L87 Difference]: Start difference. First operand has 2516 states, 2512 states have (on average 1.8288216560509554) internal successors, (4594), 2515 states have internal predecessors, (4594), 0 states have call successors, (0), 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 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:03,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:03,407 INFO L93 Difference]: Finished difference Result 5266 states and 9548 transitions. [2022-01-10 13:35:03,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:03,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-10 13:35:03,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:03,434 INFO L225 Difference]: With dead ends: 5266 [2022-01-10 13:35:03,434 INFO L226 Difference]: Without dead ends: 2690 [2022-01-10 13:35:03,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:03,446 INFO L933 BasicCegarLoop]: 4509 mSDtfsCounter, 4457 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4457 SdHoareTripleChecker+Valid, 4910 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:03,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4457 Valid, 4910 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:03,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2022-01-10 13:35:03,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 2686. [2022-01-10 13:35:03,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2686 states, 2683 states have (on average 1.7897875512486023) internal successors, (4802), 2685 states have internal predecessors, (4802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:03,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 4802 transitions. [2022-01-10 13:35:03,547 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 4802 transitions. Word has length 66 [2022-01-10 13:35:03,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:03,548 INFO L470 AbstractCegarLoop]: Abstraction has 2686 states and 4802 transitions. [2022-01-10 13:35:03,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:03,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 4802 transitions. [2022-01-10 13:35:03,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 13:35:03,551 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:03,551 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] [2022-01-10 13:35:03,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 13:35:03,551 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:03,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:03,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1062444132, now seen corresponding path program 1 times [2022-01-10 13:35:03,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:03,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242995894] [2022-01-10 13:35:03,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:03,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:03,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:03,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:03,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242995894] [2022-01-10 13:35:03,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242995894] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:03,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:03,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:03,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778528491] [2022-01-10 13:35:03,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:03,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:03,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:03,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:03,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:03,665 INFO L87 Difference]: Start difference. First operand 2686 states and 4802 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:03,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:03,721 INFO L93 Difference]: Finished difference Result 3240 states and 5630 transitions. [2022-01-10 13:35:03,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:03,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-10 13:35:03,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:03,731 INFO L225 Difference]: With dead ends: 3240 [2022-01-10 13:35:03,732 INFO L226 Difference]: Without dead ends: 2686 [2022-01-10 13:35:03,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:03,736 INFO L933 BasicCegarLoop]: 4436 mSDtfsCounter, 4430 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4430 SdHoareTripleChecker+Valid, 4436 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:03,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4430 Valid, 4436 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:03,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2022-01-10 13:35:03,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2686. [2022-01-10 13:35:03,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2686 states, 2683 states have (on average 1.7868058143868804) internal successors, (4794), 2685 states have internal predecessors, (4794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:03,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 4794 transitions. [2022-01-10 13:35:03,794 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 4794 transitions. Word has length 66 [2022-01-10 13:35:03,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:03,795 INFO L470 AbstractCegarLoop]: Abstraction has 2686 states and 4794 transitions. [2022-01-10 13:35:03,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:03,796 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 4794 transitions. [2022-01-10 13:35:03,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 13:35:03,803 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:03,804 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] [2022-01-10 13:35:03,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 13:35:03,805 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:03,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:03,805 INFO L85 PathProgramCache]: Analyzing trace with hash -282219452, now seen corresponding path program 1 times [2022-01-10 13:35:03,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:03,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442881941] [2022-01-10 13:35:03,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:03,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:03,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:03,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:03,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442881941] [2022-01-10 13:35:03,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442881941] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:03,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:03,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:03,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348687509] [2022-01-10 13:35:03,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:03,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:03,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:03,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:03,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:03,874 INFO L87 Difference]: Start difference. First operand 2686 states and 4794 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:03,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:03,922 INFO L93 Difference]: Finished difference Result 3239 states and 5613 transitions. [2022-01-10 13:35:03,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:03,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-10 13:35:03,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:03,930 INFO L225 Difference]: With dead ends: 3239 [2022-01-10 13:35:03,931 INFO L226 Difference]: Without dead ends: 2686 [2022-01-10 13:35:03,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:03,938 INFO L933 BasicCegarLoop]: 4431 mSDtfsCounter, 4424 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4424 SdHoareTripleChecker+Valid, 4431 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:03,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4424 Valid, 4431 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:03,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2022-01-10 13:35:03,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2686. [2022-01-10 13:35:03,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2686 states, 2683 states have (on average 1.7838240775251584) internal successors, (4786), 2685 states have internal predecessors, (4786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:03,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 4786 transitions. [2022-01-10 13:35:03,990 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 4786 transitions. Word has length 66 [2022-01-10 13:35:03,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:03,990 INFO L470 AbstractCegarLoop]: Abstraction has 2686 states and 4786 transitions. [2022-01-10 13:35:03,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:03,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 4786 transitions. [2022-01-10 13:35:03,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 13:35:03,992 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:03,992 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] [2022-01-10 13:35:03,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 13:35:03,993 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:03,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:03,993 INFO L85 PathProgramCache]: Analyzing trace with hash 367140964, now seen corresponding path program 1 times [2022-01-10 13:35:03,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:03,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727914535] [2022-01-10 13:35:03,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:03,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:04,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:04,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:04,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727914535] [2022-01-10 13:35:04,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727914535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:04,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:04,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:04,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941556622] [2022-01-10 13:35:04,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:04,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:04,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:04,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:04,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:04,060 INFO L87 Difference]: Start difference. First operand 2686 states and 4786 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:04,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:04,111 INFO L93 Difference]: Finished difference Result 3238 states and 5596 transitions. [2022-01-10 13:35:04,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:04,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-10 13:35:04,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:04,120 INFO L225 Difference]: With dead ends: 3238 [2022-01-10 13:35:04,120 INFO L226 Difference]: Without dead ends: 2686 [2022-01-10 13:35:04,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:04,127 INFO L933 BasicCegarLoop]: 4426 mSDtfsCounter, 4418 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4418 SdHoareTripleChecker+Valid, 4426 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:04,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4418 Valid, 4426 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:04,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2022-01-10 13:35:04,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2686. [2022-01-10 13:35:04,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2686 states, 2683 states have (on average 1.7808423406634364) internal successors, (4778), 2685 states have internal predecessors, (4778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:04,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 4778 transitions. [2022-01-10 13:35:04,181 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 4778 transitions. Word has length 66 [2022-01-10 13:35:04,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:04,183 INFO L470 AbstractCegarLoop]: Abstraction has 2686 states and 4778 transitions. [2022-01-10 13:35:04,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:04,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 4778 transitions. [2022-01-10 13:35:04,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 13:35:04,184 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:04,184 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] [2022-01-10 13:35:04,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 13:35:04,185 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:04,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:04,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1967216572, now seen corresponding path program 1 times [2022-01-10 13:35:04,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:04,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129126452] [2022-01-10 13:35:04,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:04,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:04,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:04,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:04,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129126452] [2022-01-10 13:35:04,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129126452] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:04,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:04,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:04,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874918097] [2022-01-10 13:35:04,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:04,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:04,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:04,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:04,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:04,226 INFO L87 Difference]: Start difference. First operand 2686 states and 4778 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:04,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:04,297 INFO L93 Difference]: Finished difference Result 3237 states and 5579 transitions. [2022-01-10 13:35:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:04,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-10 13:35:04,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:04,306 INFO L225 Difference]: With dead ends: 3237 [2022-01-10 13:35:04,306 INFO L226 Difference]: Without dead ends: 2686 [2022-01-10 13:35:04,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:04,308 INFO L933 BasicCegarLoop]: 4409 mSDtfsCounter, 4364 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4364 SdHoareTripleChecker+Valid, 4447 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:04,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4364 Valid, 4447 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:04,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2022-01-10 13:35:04,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2686. [2022-01-10 13:35:04,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2686 states, 2683 states have (on average 1.7741334327245621) internal successors, (4760), 2685 states have internal predecessors, (4760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:04,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 4760 transitions. [2022-01-10 13:35:04,481 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 4760 transitions. Word has length 66 [2022-01-10 13:35:04,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:04,483 INFO L470 AbstractCegarLoop]: Abstraction has 2686 states and 4760 transitions. [2022-01-10 13:35:04,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:04,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 4760 transitions. [2022-01-10 13:35:04,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 13:35:04,486 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:04,486 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] [2022-01-10 13:35:04,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 13:35:04,486 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:04,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:04,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1856693731, now seen corresponding path program 1 times [2022-01-10 13:35:04,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:04,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856199901] [2022-01-10 13:35:04,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:04,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:04,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:04,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:04,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856199901] [2022-01-10 13:35:04,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856199901] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:04,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:04,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:04,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541877533] [2022-01-10 13:35:04,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:04,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:04,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:04,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:04,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:04,542 INFO L87 Difference]: Start difference. First operand 2686 states and 4760 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:04,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:04,604 INFO L93 Difference]: Finished difference Result 3236 states and 5542 transitions. [2022-01-10 13:35:04,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:04,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-10 13:35:04,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:04,612 INFO L225 Difference]: With dead ends: 3236 [2022-01-10 13:35:04,612 INFO L226 Difference]: Without dead ends: 2686 [2022-01-10 13:35:04,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:04,615 INFO L933 BasicCegarLoop]: 4398 mSDtfsCounter, 4353 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4353 SdHoareTripleChecker+Valid, 4435 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:04,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4353 Valid, 4435 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:04,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2022-01-10 13:35:04,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2686. [2022-01-10 13:35:04,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2686 states, 2683 states have (on average 1.7674245247856877) internal successors, (4742), 2685 states have internal predecessors, (4742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:04,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 4742 transitions. [2022-01-10 13:35:04,666 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 4742 transitions. Word has length 66 [2022-01-10 13:35:04,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:04,666 INFO L470 AbstractCegarLoop]: Abstraction has 2686 states and 4742 transitions. [2022-01-10 13:35:04,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:04,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 4742 transitions. [2022-01-10 13:35:04,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 13:35:04,667 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:04,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:35:04,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 13:35:04,667 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:04,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:04,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1314655614, now seen corresponding path program 1 times [2022-01-10 13:35:04,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:04,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817794201] [2022-01-10 13:35:04,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:04,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:04,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:04,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:04,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817794201] [2022-01-10 13:35:04,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817794201] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:04,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:04,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:04,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839325106] [2022-01-10 13:35:04,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:04,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:04,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:04,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:04,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:04,700 INFO L87 Difference]: Start difference. First operand 2686 states and 4742 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:04,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:04,760 INFO L93 Difference]: Finished difference Result 3235 states and 5505 transitions. [2022-01-10 13:35:04,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:04,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-10 13:35:04,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:04,769 INFO L225 Difference]: With dead ends: 3235 [2022-01-10 13:35:04,769 INFO L226 Difference]: Without dead ends: 2686 [2022-01-10 13:35:04,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:04,772 INFO L933 BasicCegarLoop]: 4387 mSDtfsCounter, 4342 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4342 SdHoareTripleChecker+Valid, 4423 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:04,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4342 Valid, 4423 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:04,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2022-01-10 13:35:04,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2686. [2022-01-10 13:35:04,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2686 states, 2683 states have (on average 1.7607156168468132) internal successors, (4724), 2685 states have internal predecessors, (4724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:04,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 4724 transitions. [2022-01-10 13:35:04,831 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 4724 transitions. Word has length 66 [2022-01-10 13:35:04,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:04,831 INFO L470 AbstractCegarLoop]: Abstraction has 2686 states and 4724 transitions. [2022-01-10 13:35:04,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:04,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 4724 transitions. [2022-01-10 13:35:04,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 13:35:04,832 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:04,832 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] [2022-01-10 13:35:04,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 13:35:04,832 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:04,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:04,833 INFO L85 PathProgramCache]: Analyzing trace with hash -720388447, now seen corresponding path program 1 times [2022-01-10 13:35:04,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:04,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630328378] [2022-01-10 13:35:04,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:04,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:04,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:04,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:04,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630328378] [2022-01-10 13:35:04,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630328378] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:04,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:04,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:04,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083408448] [2022-01-10 13:35:04,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:04,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:04,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:04,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:04,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:04,853 INFO L87 Difference]: Start difference. First operand 2686 states and 4724 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:04,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:04,908 INFO L93 Difference]: Finished difference Result 3234 states and 5468 transitions. [2022-01-10 13:35:04,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:04,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-10 13:35:04,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:04,916 INFO L225 Difference]: With dead ends: 3234 [2022-01-10 13:35:04,917 INFO L226 Difference]: Without dead ends: 2686 [2022-01-10 13:35:04,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:04,919 INFO L933 BasicCegarLoop]: 4376 mSDtfsCounter, 4331 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4331 SdHoareTripleChecker+Valid, 4411 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:04,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4331 Valid, 4411 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:04,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2022-01-10 13:35:04,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2686. [2022-01-10 13:35:04,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2686 states, 2683 states have (on average 1.754006708907939) internal successors, (4706), 2685 states have internal predecessors, (4706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:04,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 4706 transitions. [2022-01-10 13:35:04,969 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 4706 transitions. Word has length 66 [2022-01-10 13:35:04,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:04,969 INFO L470 AbstractCegarLoop]: Abstraction has 2686 states and 4706 transitions. [2022-01-10 13:35:04,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:04,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 4706 transitions. [2022-01-10 13:35:04,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 13:35:04,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:04,971 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] [2022-01-10 13:35:04,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 13:35:04,971 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:04,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:04,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1238681983, now seen corresponding path program 1 times [2022-01-10 13:35:04,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:04,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595583430] [2022-01-10 13:35:04,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:04,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:04,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:04,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:04,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:04,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595583430] [2022-01-10 13:35:04,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595583430] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:04,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:04,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:04,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857738617] [2022-01-10 13:35:04,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:04,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:04,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:05,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:05,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:05,000 INFO L87 Difference]: Start difference. First operand 2686 states and 4706 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:05,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:05,073 INFO L93 Difference]: Finished difference Result 3710 states and 6065 transitions. [2022-01-10 13:35:05,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:05,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-10 13:35:05,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:05,094 INFO L225 Difference]: With dead ends: 3710 [2022-01-10 13:35:05,094 INFO L226 Difference]: Without dead ends: 3164 [2022-01-10 13:35:05,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:05,097 INFO L933 BasicCegarLoop]: 4377 mSDtfsCounter, 4291 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4291 SdHoareTripleChecker+Valid, 4722 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:05,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4291 Valid, 4722 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:05,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3164 states. [2022-01-10 13:35:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3164 to 3110. [2022-01-10 13:35:05,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3107 states have (on average 1.6919858384293531) internal successors, (5257), 3109 states have internal predecessors, (5257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:05,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 5257 transitions. [2022-01-10 13:35:05,168 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 5257 transitions. Word has length 66 [2022-01-10 13:35:05,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:05,169 INFO L470 AbstractCegarLoop]: Abstraction has 3110 states and 5257 transitions. [2022-01-10 13:35:05,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:05,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 5257 transitions. [2022-01-10 13:35:05,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 13:35:05,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:05,173 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] [2022-01-10 13:35:05,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 13:35:05,174 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:05,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:05,175 INFO L85 PathProgramCache]: Analyzing trace with hash 945473165, now seen corresponding path program 1 times [2022-01-10 13:35:05,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:05,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570007030] [2022-01-10 13:35:05,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:05,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:05,221 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:05,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:05,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570007030] [2022-01-10 13:35:05,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570007030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:05,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:05,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:05,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215311060] [2022-01-10 13:35:05,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:05,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:05,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:05,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:05,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:05,223 INFO L87 Difference]: Start difference. First operand 3110 states and 5257 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:05,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:05,337 INFO L93 Difference]: Finished difference Result 4950 states and 7688 transitions. [2022-01-10 13:35:05,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:05,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2022-01-10 13:35:05,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:05,346 INFO L225 Difference]: With dead ends: 4950 [2022-01-10 13:35:05,346 INFO L226 Difference]: Without dead ends: 3986 [2022-01-10 13:35:05,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:05,349 INFO L933 BasicCegarLoop]: 4374 mSDtfsCounter, 4309 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4309 SdHoareTripleChecker+Valid, 4719 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:05,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4309 Valid, 4719 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:05,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3986 states. [2022-01-10 13:35:05,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3986 to 3894. [2022-01-10 13:35:05,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3894 states, 3891 states have (on average 1.61526599845798) internal successors, (6285), 3893 states have internal predecessors, (6285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:05,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 6285 transitions. [2022-01-10 13:35:05,453 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 6285 transitions. Word has length 106 [2022-01-10 13:35:05,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:05,453 INFO L470 AbstractCegarLoop]: Abstraction has 3894 states and 6285 transitions. [2022-01-10 13:35:05,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:05,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 6285 transitions. [2022-01-10 13:35:05,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 13:35:05,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:05,455 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] [2022-01-10 13:35:05,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 13:35:05,455 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:05,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:05,456 INFO L85 PathProgramCache]: Analyzing trace with hash 426970764, now seen corresponding path program 1 times [2022-01-10 13:35:05,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:05,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803241361] [2022-01-10 13:35:05,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:05,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:05,588 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:05,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:05,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803241361] [2022-01-10 13:35:05,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803241361] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:05,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:05,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:05,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491119825] [2022-01-10 13:35:05,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:05,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:05,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:05,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:05,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:05,589 INFO L87 Difference]: Start difference. First operand 3894 states and 6285 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:05,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:05,742 INFO L93 Difference]: Finished difference Result 7251 states and 10656 transitions. [2022-01-10 13:35:05,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:05,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2022-01-10 13:35:05,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:05,754 INFO L225 Difference]: With dead ends: 7251 [2022-01-10 13:35:05,754 INFO L226 Difference]: Without dead ends: 5531 [2022-01-10 13:35:05,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:05,759 INFO L933 BasicCegarLoop]: 4466 mSDtfsCounter, 4318 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4318 SdHoareTripleChecker+Valid, 4865 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:05,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4318 Valid, 4865 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:05,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5531 states. [2022-01-10 13:35:05,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5531 to 5455. [2022-01-10 13:35:05,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5452 states have (on average 1.516140865737344) internal successors, (8266), 5454 states have internal predecessors, (8266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:05,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 8266 transitions. [2022-01-10 13:35:05,920 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 8266 transitions. Word has length 106 [2022-01-10 13:35:05,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:05,921 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 8266 transitions. [2022-01-10 13:35:05,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:05,921 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 8266 transitions. [2022-01-10 13:35:05,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 13:35:05,925 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:05,925 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] [2022-01-10 13:35:05,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 13:35:05,926 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:05,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:05,926 INFO L85 PathProgramCache]: Analyzing trace with hash -420964564, now seen corresponding path program 1 times [2022-01-10 13:35:05,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:05,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309529848] [2022-01-10 13:35:05,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:05,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:05,958 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:35:05,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:05,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309529848] [2022-01-10 13:35:05,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309529848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:05,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:05,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:05,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244287856] [2022-01-10 13:35:05,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:05,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:05,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:05,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:05,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:05,960 INFO L87 Difference]: Start difference. First operand 5455 states and 8266 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:06,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:06,084 INFO L93 Difference]: Finished difference Result 8713 states and 12484 transitions. [2022-01-10 13:35:06,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:06,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 106 [2022-01-10 13:35:06,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:06,094 INFO L225 Difference]: With dead ends: 8713 [2022-01-10 13:35:06,095 INFO L226 Difference]: Without dead ends: 5408 [2022-01-10 13:35:06,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:06,101 INFO L933 BasicCegarLoop]: 4381 mSDtfsCounter, 419 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 8339 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:06,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 8339 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:06,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5408 states. [2022-01-10 13:35:06,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5408 to 5408. [2022-01-10 13:35:06,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5408 states, 5405 states have (on average 1.518963922294172) internal successors, (8210), 5407 states have internal predecessors, (8210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:06,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5408 states to 5408 states and 8210 transitions. [2022-01-10 13:35:06,250 INFO L78 Accepts]: Start accepts. Automaton has 5408 states and 8210 transitions. Word has length 106 [2022-01-10 13:35:06,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:06,250 INFO L470 AbstractCegarLoop]: Abstraction has 5408 states and 8210 transitions. [2022-01-10 13:35:06,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:06,251 INFO L276 IsEmpty]: Start isEmpty. Operand 5408 states and 8210 transitions. [2022-01-10 13:35:06,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-10 13:35:06,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:06,253 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] [2022-01-10 13:35:06,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 13:35:06,253 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:06,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:06,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1577245362, now seen corresponding path program 1 times [2022-01-10 13:35:06,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:06,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624366309] [2022-01-10 13:35:06,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:06,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:06,305 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:06,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:06,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624366309] [2022-01-10 13:35:06,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624366309] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:06,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:06,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:06,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055151588] [2022-01-10 13:35:06,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:06,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:06,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:06,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:06,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:06,306 INFO L87 Difference]: Start difference. First operand 5408 states and 8210 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:06,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:06,599 INFO L93 Difference]: Finished difference Result 11514 states and 16083 transitions. [2022-01-10 13:35:06,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:06,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2022-01-10 13:35:06,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:06,614 INFO L225 Difference]: With dead ends: 11514 [2022-01-10 13:35:06,615 INFO L226 Difference]: Without dead ends: 8280 [2022-01-10 13:35:06,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:06,623 INFO L933 BasicCegarLoop]: 4477 mSDtfsCounter, 4317 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4317 SdHoareTripleChecker+Valid, 4874 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:06,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4317 Valid, 4874 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:06,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8280 states. [2022-01-10 13:35:06,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8280 to 8100. [2022-01-10 13:35:06,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8100 states, 8097 states have (on average 1.4359639372607138) internal successors, (11627), 8099 states have internal predecessors, (11627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:06,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8100 states to 8100 states and 11627 transitions. [2022-01-10 13:35:06,917 INFO L78 Accepts]: Start accepts. Automaton has 8100 states and 11627 transitions. Word has length 107 [2022-01-10 13:35:06,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:06,917 INFO L470 AbstractCegarLoop]: Abstraction has 8100 states and 11627 transitions. [2022-01-10 13:35:06,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:06,917 INFO L276 IsEmpty]: Start isEmpty. Operand 8100 states and 11627 transitions. [2022-01-10 13:35:06,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-10 13:35:06,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:06,920 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] [2022-01-10 13:35:06,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 13:35:06,921 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:06,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:06,921 INFO L85 PathProgramCache]: Analyzing trace with hash -559026773, now seen corresponding path program 1 times [2022-01-10 13:35:06,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:06,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168046689] [2022-01-10 13:35:06,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:06,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:06,945 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:35:06,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:06,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168046689] [2022-01-10 13:35:06,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168046689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:06,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:06,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:06,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113777032] [2022-01-10 13:35:06,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:06,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:06,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:06,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:06,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:06,947 INFO L87 Difference]: Start difference. First operand 8100 states and 11627 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:07,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:07,210 INFO L93 Difference]: Finished difference Result 13997 states and 19200 transitions. [2022-01-10 13:35:07,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:07,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 107 [2022-01-10 13:35:07,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:07,225 INFO L225 Difference]: With dead ends: 13997 [2022-01-10 13:35:07,226 INFO L226 Difference]: Without dead ends: 8054 [2022-01-10 13:35:07,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:07,236 INFO L933 BasicCegarLoop]: 4380 mSDtfsCounter, 417 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 8338 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:07,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 8338 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:07,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8054 states. [2022-01-10 13:35:07,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8054 to 8054. [2022-01-10 13:35:07,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8054 states, 8051 states have (on average 1.4374611849459695) internal successors, (11573), 8053 states have internal predecessors, (11573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:07,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8054 states to 8054 states and 11573 transitions. [2022-01-10 13:35:07,542 INFO L78 Accepts]: Start accepts. Automaton has 8054 states and 11573 transitions. Word has length 107 [2022-01-10 13:35:07,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:07,542 INFO L470 AbstractCegarLoop]: Abstraction has 8054 states and 11573 transitions. [2022-01-10 13:35:07,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:07,543 INFO L276 IsEmpty]: Start isEmpty. Operand 8054 states and 11573 transitions. [2022-01-10 13:35:07,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 13:35:07,546 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:07,546 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] [2022-01-10 13:35:07,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 13:35:07,546 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:07,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:07,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1069271650, now seen corresponding path program 1 times [2022-01-10 13:35:07,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:07,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692040618] [2022-01-10 13:35:07,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:07,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:07,587 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:07,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:07,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692040618] [2022-01-10 13:35:07,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692040618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:07,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:07,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:07,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760380399] [2022-01-10 13:35:07,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:07,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:07,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:07,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:07,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:07,589 INFO L87 Difference]: Start difference. First operand 8054 states and 11573 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:08,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:08,080 INFO L93 Difference]: Finished difference Result 18867 states and 25404 transitions. [2022-01-10 13:35:08,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:08,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2022-01-10 13:35:08,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:08,106 INFO L225 Difference]: With dead ends: 18867 [2022-01-10 13:35:08,106 INFO L226 Difference]: Without dead ends: 12987 [2022-01-10 13:35:08,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:08,120 INFO L933 BasicCegarLoop]: 4449 mSDtfsCounter, 4316 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4316 SdHoareTripleChecker+Valid, 4844 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:08,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4316 Valid, 4844 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:08,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12987 states. [2022-01-10 13:35:08,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12987 to 12855. [2022-01-10 13:35:08,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12855 states, 12852 states have (on average 1.3744164332399627) internal successors, (17664), 12854 states have internal predecessors, (17664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:08,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12855 states to 12855 states and 17664 transitions. [2022-01-10 13:35:08,543 INFO L78 Accepts]: Start accepts. Automaton has 12855 states and 17664 transitions. Word has length 108 [2022-01-10 13:35:08,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:08,543 INFO L470 AbstractCegarLoop]: Abstraction has 12855 states and 17664 transitions. [2022-01-10 13:35:08,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:08,544 INFO L276 IsEmpty]: Start isEmpty. Operand 12855 states and 17664 transitions. [2022-01-10 13:35:08,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 13:35:08,548 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:08,548 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] [2022-01-10 13:35:08,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 13:35:08,548 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:08,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:08,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1630234431, now seen corresponding path program 1 times [2022-01-10 13:35:08,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:08,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321587548] [2022-01-10 13:35:08,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:08,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:08,577 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:35:08,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:08,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321587548] [2022-01-10 13:35:08,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321587548] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:08,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:08,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:08,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512686728] [2022-01-10 13:35:08,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:08,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:08,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:08,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:08,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:08,581 INFO L87 Difference]: Start difference. First operand 12855 states and 17664 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:08,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:08,959 INFO L93 Difference]: Finished difference Result 23501 states and 31268 transitions. [2022-01-10 13:35:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:08,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 108 [2022-01-10 13:35:08,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:08,987 INFO L225 Difference]: With dead ends: 23501 [2022-01-10 13:35:08,988 INFO L226 Difference]: Without dead ends: 12810 [2022-01-10 13:35:09,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:09,004 INFO L933 BasicCegarLoop]: 4379 mSDtfsCounter, 415 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 8337 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:09,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 8337 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:09,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12810 states. [2022-01-10 13:35:09,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12810 to 12810. [2022-01-10 13:35:09,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12810 states, 12807 states have (on average 1.3751854454595143) internal successors, (17612), 12809 states have internal predecessors, (17612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:09,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12810 states to 12810 states and 17612 transitions. [2022-01-10 13:35:09,593 INFO L78 Accepts]: Start accepts. Automaton has 12810 states and 17612 transitions. Word has length 108 [2022-01-10 13:35:09,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:09,593 INFO L470 AbstractCegarLoop]: Abstraction has 12810 states and 17612 transitions. [2022-01-10 13:35:09,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:09,593 INFO L276 IsEmpty]: Start isEmpty. Operand 12810 states and 17612 transitions. [2022-01-10 13:35:09,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-10 13:35:09,599 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:09,599 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] [2022-01-10 13:35:09,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 13:35:09,599 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:09,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:09,599 INFO L85 PathProgramCache]: Analyzing trace with hash 2102120895, now seen corresponding path program 1 times [2022-01-10 13:35:09,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:09,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856707844] [2022-01-10 13:35:09,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:09,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:09,631 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:09,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:09,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856707844] [2022-01-10 13:35:09,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856707844] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:09,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:09,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:09,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762619767] [2022-01-10 13:35:09,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:09,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:09,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:09,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:09,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:09,633 INFO L87 Difference]: Start difference. First operand 12810 states and 17612 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:10,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:10,272 INFO L93 Difference]: Finished difference Result 32670 states and 42820 transitions. [2022-01-10 13:35:10,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:10,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-01-10 13:35:10,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:10,316 INFO L225 Difference]: With dead ends: 32670 [2022-01-10 13:35:10,316 INFO L226 Difference]: Without dead ends: 22034 [2022-01-10 13:35:10,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:10,337 INFO L933 BasicCegarLoop]: 4718 mSDtfsCounter, 337 mSDsluCounter, 4359 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 9077 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:10,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 9077 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:10,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22034 states. [2022-01-10 13:35:11,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22034 to 22034. [2022-01-10 13:35:11,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22034 states, 22031 states have (on average 1.3149652762017157) internal successors, (28970), 22033 states have internal predecessors, (28970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:11,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22034 states to 22034 states and 28970 transitions. [2022-01-10 13:35:11,130 INFO L78 Accepts]: Start accepts. Automaton has 22034 states and 28970 transitions. Word has length 109 [2022-01-10 13:35:11,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:11,130 INFO L470 AbstractCegarLoop]: Abstraction has 22034 states and 28970 transitions. [2022-01-10 13:35:11,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:11,131 INFO L276 IsEmpty]: Start isEmpty. Operand 22034 states and 28970 transitions. [2022-01-10 13:35:11,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-01-10 13:35:11,144 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:11,145 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] [2022-01-10 13:35:11,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 13:35:11,146 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:11,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:11,146 INFO L85 PathProgramCache]: Analyzing trace with hash -213855212, now seen corresponding path program 1 times [2022-01-10 13:35:11,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:11,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011197016] [2022-01-10 13:35:11,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:11,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:11,193 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:11,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:11,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011197016] [2022-01-10 13:35:11,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011197016] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:11,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:11,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:11,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627777772] [2022-01-10 13:35:11,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:11,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:11,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:11,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:11,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:11,195 INFO L87 Difference]: Start difference. First operand 22034 states and 28970 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:12,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:12,228 INFO L93 Difference]: Finished difference Result 50724 states and 64950 transitions. [2022-01-10 13:35:12,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:12,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2022-01-10 13:35:12,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:12,321 INFO L225 Difference]: With dead ends: 50724 [2022-01-10 13:35:12,322 INFO L226 Difference]: Without dead ends: 30868 [2022-01-10 13:35:12,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:12,350 INFO L933 BasicCegarLoop]: 4371 mSDtfsCounter, 4218 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4218 SdHoareTripleChecker+Valid, 4716 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:12,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4218 Valid, 4716 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:12,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30868 states. [2022-01-10 13:35:13,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30868 to 30736. [2022-01-10 13:35:13,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30736 states, 30733 states have (on average 1.2900139914749618) internal successors, (39646), 30735 states have internal predecessors, (39646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:13,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30736 states to 30736 states and 39646 transitions. [2022-01-10 13:35:13,443 INFO L78 Accepts]: Start accepts. Automaton has 30736 states and 39646 transitions. Word has length 140 [2022-01-10 13:35:13,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:13,443 INFO L470 AbstractCegarLoop]: Abstraction has 30736 states and 39646 transitions. [2022-01-10 13:35:13,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:13,443 INFO L276 IsEmpty]: Start isEmpty. Operand 30736 states and 39646 transitions. [2022-01-10 13:35:13,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-01-10 13:35:13,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:13,461 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] [2022-01-10 13:35:13,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 13:35:13,461 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:13,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:13,461 INFO L85 PathProgramCache]: Analyzing trace with hash 647066896, now seen corresponding path program 1 times [2022-01-10 13:35:13,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:13,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337595418] [2022-01-10 13:35:13,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:13,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:13,516 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:13,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:13,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337595418] [2022-01-10 13:35:13,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337595418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:13,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:13,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:13,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249912868] [2022-01-10 13:35:13,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:13,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:13,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:13,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:13,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:13,518 INFO L87 Difference]: Start difference. First operand 30736 states and 39646 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:14,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:14,654 INFO L93 Difference]: Finished difference Result 72036 states and 91140 transitions. [2022-01-10 13:35:14,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:14,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2022-01-10 13:35:14,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:14,726 INFO L225 Difference]: With dead ends: 72036 [2022-01-10 13:35:14,726 INFO L226 Difference]: Without dead ends: 43490 [2022-01-10 13:35:14,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:14,759 INFO L933 BasicCegarLoop]: 4369 mSDtfsCounter, 4220 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4220 SdHoareTripleChecker+Valid, 4714 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:14,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4220 Valid, 4714 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:14,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43490 states. [2022-01-10 13:35:16,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43490 to 43294. [2022-01-10 13:35:16,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43294 states, 43291 states have (on average 1.2707953154235292) internal successors, (55014), 43293 states have internal predecessors, (55014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:16,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43294 states to 43294 states and 55014 transitions. [2022-01-10 13:35:16,608 INFO L78 Accepts]: Start accepts. Automaton has 43294 states and 55014 transitions. Word has length 140 [2022-01-10 13:35:16,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:16,608 INFO L470 AbstractCegarLoop]: Abstraction has 43294 states and 55014 transitions. [2022-01-10 13:35:16,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:16,608 INFO L276 IsEmpty]: Start isEmpty. Operand 43294 states and 55014 transitions. [2022-01-10 13:35:16,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-01-10 13:35:16,640 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:16,640 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:35:16,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 13:35:16,640 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:16,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:16,641 INFO L85 PathProgramCache]: Analyzing trace with hash 2029344296, now seen corresponding path program 1 times [2022-01-10 13:35:16,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:16,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508747919] [2022-01-10 13:35:16,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:16,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:16,670 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-01-10 13:35:16,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:16,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508747919] [2022-01-10 13:35:16,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508747919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:16,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:16,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:16,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738467771] [2022-01-10 13:35:16,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:16,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:16,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:16,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:16,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:16,672 INFO L87 Difference]: Start difference. First operand 43294 states and 55014 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:18,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:18,000 INFO L93 Difference]: Finished difference Result 75848 states and 95600 transitions. [2022-01-10 13:35:18,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:18,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 157 [2022-01-10 13:35:18,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:18,071 INFO L225 Difference]: With dead ends: 75848 [2022-01-10 13:35:18,071 INFO L226 Difference]: Without dead ends: 44146 [2022-01-10 13:35:18,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:18,104 INFO L933 BasicCegarLoop]: 4381 mSDtfsCounter, 4278 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4278 SdHoareTripleChecker+Valid, 4775 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:18,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4278 Valid, 4775 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:18,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44146 states. [2022-01-10 13:35:19,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44146 to 42574. [2022-01-10 13:35:19,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42574 states, 42571 states have (on average 1.2545159850602523) internal successors, (53406), 42573 states have internal predecessors, (53406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:19,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42574 states to 42574 states and 53406 transitions. [2022-01-10 13:35:19,533 INFO L78 Accepts]: Start accepts. Automaton has 42574 states and 53406 transitions. Word has length 157 [2022-01-10 13:35:19,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:19,534 INFO L470 AbstractCegarLoop]: Abstraction has 42574 states and 53406 transitions. [2022-01-10 13:35:19,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:19,534 INFO L276 IsEmpty]: Start isEmpty. Operand 42574 states and 53406 transitions. [2022-01-10 13:35:19,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-01-10 13:35:19,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:19,578 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:35:19,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 13:35:19,578 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:19,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:19,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1177354213, now seen corresponding path program 1 times [2022-01-10 13:35:19,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:19,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912415476] [2022-01-10 13:35:19,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:19,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:19,616 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-10 13:35:19,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:19,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912415476] [2022-01-10 13:35:19,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912415476] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:19,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:19,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:19,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212787849] [2022-01-10 13:35:19,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:19,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:19,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:19,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:19,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:19,619 INFO L87 Difference]: Start difference. First operand 42574 states and 53406 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:21,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:21,280 INFO L93 Difference]: Finished difference Result 82934 states and 102750 transitions. [2022-01-10 13:35:21,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:21,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 158 [2022-01-10 13:35:21,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:21,352 INFO L225 Difference]: With dead ends: 82934 [2022-01-10 13:35:21,352 INFO L226 Difference]: Without dead ends: 42578 [2022-01-10 13:35:21,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:21,393 INFO L933 BasicCegarLoop]: 4657 mSDtfsCounter, 298 mSDsluCounter, 4344 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 9001 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:21,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 9001 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:21,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42578 states. [2022-01-10 13:35:22,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42578 to 42574. [2022-01-10 13:35:22,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42574 states, 42571 states have (on average 1.2460595240891688) internal successors, (53046), 42573 states have internal predecessors, (53046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:22,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42574 states to 42574 states and 53046 transitions. [2022-01-10 13:35:22,938 INFO L78 Accepts]: Start accepts. Automaton has 42574 states and 53046 transitions. Word has length 158 [2022-01-10 13:35:22,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:22,939 INFO L470 AbstractCegarLoop]: Abstraction has 42574 states and 53046 transitions. [2022-01-10 13:35:22,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:22,939 INFO L276 IsEmpty]: Start isEmpty. Operand 42574 states and 53046 transitions. [2022-01-10 13:35:22,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-01-10 13:35:22,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:22,961 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:35:22,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 13:35:22,962 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:22,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:22,962 INFO L85 PathProgramCache]: Analyzing trace with hash -2131487745, now seen corresponding path program 1 times [2022-01-10 13:35:22,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:22,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946285620] [2022-01-10 13:35:22,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:22,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:22,993 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:22,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:22,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946285620] [2022-01-10 13:35:22,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946285620] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:22,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:22,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:22,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113640021] [2022-01-10 13:35:22,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:22,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:22,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:22,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:22,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:22,994 INFO L87 Difference]: Start difference. First operand 42574 states and 53046 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:24,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:24,476 INFO L93 Difference]: Finished difference Result 70638 states and 87354 transitions. [2022-01-10 13:35:24,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:24,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2022-01-10 13:35:24,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:24,546 INFO L225 Difference]: With dead ends: 70638 [2022-01-10 13:35:24,547 INFO L226 Difference]: Without dead ends: 42578 [2022-01-10 13:35:24,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:24,573 INFO L933 BasicCegarLoop]: 4666 mSDtfsCounter, 293 mSDsluCounter, 4350 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 9016 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:24,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 9016 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:24,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42578 states. [2022-01-10 13:35:25,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42578 to 42574. [2022-01-10 13:35:25,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42574 states, 42571 states have (on average 1.2421131756359964) internal successors, (52878), 42573 states have internal predecessors, (52878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:26,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42574 states to 42574 states and 52878 transitions. [2022-01-10 13:35:26,018 INFO L78 Accepts]: Start accepts. Automaton has 42574 states and 52878 transitions. Word has length 158 [2022-01-10 13:35:26,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:26,019 INFO L470 AbstractCegarLoop]: Abstraction has 42574 states and 52878 transitions. [2022-01-10 13:35:26,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:26,019 INFO L276 IsEmpty]: Start isEmpty. Operand 42574 states and 52878 transitions. [2022-01-10 13:35:26,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-01-10 13:35:26,040 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:26,040 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:35:26,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 13:35:26,040 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:26,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:26,041 INFO L85 PathProgramCache]: Analyzing trace with hash 737639735, now seen corresponding path program 1 times [2022-01-10 13:35:26,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:26,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730493694] [2022-01-10 13:35:26,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:26,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:26,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:26,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730493694] [2022-01-10 13:35:26,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730493694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:26,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:26,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:26,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505235708] [2022-01-10 13:35:26,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:26,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:26,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:26,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:26,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:26,077 INFO L87 Difference]: Start difference. First operand 42574 states and 52878 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:27,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:27,570 INFO L93 Difference]: Finished difference Result 70614 states and 87026 transitions. [2022-01-10 13:35:27,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:27,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2022-01-10 13:35:27,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:27,630 INFO L225 Difference]: With dead ends: 70614 [2022-01-10 13:35:27,631 INFO L226 Difference]: Without dead ends: 42578 [2022-01-10 13:35:27,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:27,653 INFO L933 BasicCegarLoop]: 4674 mSDtfsCounter, 293 mSDsluCounter, 4356 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 9030 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:27,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 9030 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:27,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42578 states. [2022-01-10 13:35:29,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42578 to 42574. [2022-01-10 13:35:29,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42574 states, 42571 states have (on average 1.2392943553123017) internal successors, (52758), 42573 states have internal predecessors, (52758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:29,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42574 states to 42574 states and 52758 transitions. [2022-01-10 13:35:29,176 INFO L78 Accepts]: Start accepts. Automaton has 42574 states and 52758 transitions. Word has length 158 [2022-01-10 13:35:29,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:29,176 INFO L470 AbstractCegarLoop]: Abstraction has 42574 states and 52758 transitions. [2022-01-10 13:35:29,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:29,176 INFO L276 IsEmpty]: Start isEmpty. Operand 42574 states and 52758 transitions. [2022-01-10 13:35:29,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-01-10 13:35:29,194 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:29,194 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:35:29,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 13:35:29,194 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:29,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:29,194 INFO L85 PathProgramCache]: Analyzing trace with hash -343394932, now seen corresponding path program 1 times [2022-01-10 13:35:29,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:29,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923783441] [2022-01-10 13:35:29,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:29,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:29,229 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-10 13:35:29,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:29,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923783441] [2022-01-10 13:35:29,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923783441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:29,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:29,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:29,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822446100] [2022-01-10 13:35:29,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:29,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:29,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:29,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:29,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:29,231 INFO L87 Difference]: Start difference. First operand 42574 states and 52758 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:30,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:30,737 INFO L93 Difference]: Finished difference Result 66258 states and 81816 transitions. [2022-01-10 13:35:30,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:30,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 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 158 [2022-01-10 13:35:30,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:30,805 INFO L225 Difference]: With dead ends: 66258 [2022-01-10 13:35:30,805 INFO L226 Difference]: Without dead ends: 44434 [2022-01-10 13:35:30,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:30,828 INFO L933 BasicCegarLoop]: 4577 mSDtfsCounter, 347 mSDsluCounter, 4335 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 8912 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:30,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 8912 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:30,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44434 states. [2022-01-10 13:35:32,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44434 to 42574. [2022-01-10 13:35:32,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42574 states, 42571 states have (on average 1.2260458997909376) internal successors, (52194), 42573 states have internal predecessors, (52194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:32,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42574 states to 42574 states and 52194 transitions. [2022-01-10 13:35:32,383 INFO L78 Accepts]: Start accepts. Automaton has 42574 states and 52194 transitions. Word has length 158 [2022-01-10 13:35:32,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:32,383 INFO L470 AbstractCegarLoop]: Abstraction has 42574 states and 52194 transitions. [2022-01-10 13:35:32,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:32,384 INFO L276 IsEmpty]: Start isEmpty. Operand 42574 states and 52194 transitions. [2022-01-10 13:35:32,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-01-10 13:35:32,401 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:32,401 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:35:32,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 13:35:32,401 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:32,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:32,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1372551687, now seen corresponding path program 1 times [2022-01-10 13:35:32,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:32,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954877906] [2022-01-10 13:35:32,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:32,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:32,433 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:32,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:32,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954877906] [2022-01-10 13:35:32,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954877906] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:32,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:32,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:32,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134121132] [2022-01-10 13:35:32,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:32,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:32,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:32,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:32,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:32,435 INFO L87 Difference]: Start difference. First operand 42574 states and 52194 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:33,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:33,765 INFO L93 Difference]: Finished difference Result 70806 states and 86022 transitions. [2022-01-10 13:35:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:33,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2022-01-10 13:35:33,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:33,830 INFO L225 Difference]: With dead ends: 70806 [2022-01-10 13:35:33,830 INFO L226 Difference]: Without dead ends: 42770 [2022-01-10 13:35:33,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:33,858 INFO L933 BasicCegarLoop]: 4662 mSDtfsCounter, 322 mSDsluCounter, 4308 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 8970 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:33,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 8970 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:33,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42770 states. [2022-01-10 13:35:35,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42770 to 42574. [2022-01-10 13:35:35,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42574 states, 42571 states have (on average 1.2087571351389443) internal successors, (51458), 42573 states have internal predecessors, (51458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:35,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42574 states to 42574 states and 51458 transitions. [2022-01-10 13:35:35,579 INFO L78 Accepts]: Start accepts. Automaton has 42574 states and 51458 transitions. Word has length 158 [2022-01-10 13:35:35,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:35,579 INFO L470 AbstractCegarLoop]: Abstraction has 42574 states and 51458 transitions. [2022-01-10 13:35:35,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:35,579 INFO L276 IsEmpty]: Start isEmpty. Operand 42574 states and 51458 transitions. [2022-01-10 13:35:35,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-10 13:35:35,597 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:35,597 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:35:35,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 13:35:35,597 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:35,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:35,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1280133448, now seen corresponding path program 1 times [2022-01-10 13:35:35,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:35,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401049711] [2022-01-10 13:35:35,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:35,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:35,629 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:35,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:35,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401049711] [2022-01-10 13:35:35,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401049711] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:35,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:35,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:35,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924985656] [2022-01-10 13:35:35,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:35,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:35,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:35,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:35,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:35,631 INFO L87 Difference]: Start difference. First operand 42574 states and 51458 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:36,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:36,742 INFO L93 Difference]: Finished difference Result 73686 states and 88146 transitions. [2022-01-10 13:35:36,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:36,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2022-01-10 13:35:36,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:36,789 INFO L225 Difference]: With dead ends: 73686 [2022-01-10 13:35:36,789 INFO L226 Difference]: Without dead ends: 33330 [2022-01-10 13:35:36,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:36,820 INFO L933 BasicCegarLoop]: 4648 mSDtfsCounter, 296 mSDsluCounter, 4294 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 8942 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:36,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 8942 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:36,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33330 states. [2022-01-10 13:35:38,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33330 to 33182. [2022-01-10 13:35:38,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33182 states, 33179 states have (on average 1.2068477048735646) internal successors, (40042), 33181 states have internal predecessors, (40042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:38,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33182 states to 33182 states and 40042 transitions. [2022-01-10 13:35:38,124 INFO L78 Accepts]: Start accepts. Automaton has 33182 states and 40042 transitions. Word has length 159 [2022-01-10 13:35:38,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:38,125 INFO L470 AbstractCegarLoop]: Abstraction has 33182 states and 40042 transitions. [2022-01-10 13:35:38,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:38,125 INFO L276 IsEmpty]: Start isEmpty. Operand 33182 states and 40042 transitions. [2022-01-10 13:35:38,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-10 13:35:38,137 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:38,137 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:35:38,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 13:35:38,137 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:38,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:38,137 INFO L85 PathProgramCache]: Analyzing trace with hash -111634237, now seen corresponding path program 1 times [2022-01-10 13:35:38,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:38,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809846262] [2022-01-10 13:35:38,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:38,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:38,170 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:38,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:38,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809846262] [2022-01-10 13:35:38,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809846262] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:38,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:38,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:38,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677429063] [2022-01-10 13:35:38,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:38,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:38,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:38,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:38,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:38,171 INFO L87 Difference]: Start difference. First operand 33182 states and 40042 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:39,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:39,210 INFO L93 Difference]: Finished difference Result 54842 states and 65334 transitions. [2022-01-10 13:35:39,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:39,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2022-01-10 13:35:39,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:39,261 INFO L225 Difference]: With dead ends: 54842 [2022-01-10 13:35:39,262 INFO L226 Difference]: Without dead ends: 33330 [2022-01-10 13:35:39,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:39,286 INFO L933 BasicCegarLoop]: 4650 mSDtfsCounter, 323 mSDsluCounter, 4299 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 8949 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:39,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 8949 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:39,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33330 states. [2022-01-10 13:35:40,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33330 to 33182. [2022-01-10 13:35:40,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33182 states, 33179 states have (on average 1.1898490008740468) internal successors, (39478), 33181 states have internal predecessors, (39478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:40,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33182 states to 33182 states and 39478 transitions. [2022-01-10 13:35:40,577 INFO L78 Accepts]: Start accepts. Automaton has 33182 states and 39478 transitions. Word has length 159 [2022-01-10 13:35:40,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:40,577 INFO L470 AbstractCegarLoop]: Abstraction has 33182 states and 39478 transitions. [2022-01-10 13:35:40,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:40,577 INFO L276 IsEmpty]: Start isEmpty. Operand 33182 states and 39478 transitions. [2022-01-10 13:35:40,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-10 13:35:40,589 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:40,589 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:35:40,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 13:35:40,589 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:40,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:40,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1063421134, now seen corresponding path program 1 times [2022-01-10 13:35:40,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:40,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879176832] [2022-01-10 13:35:40,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:40,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:40,645 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-01-10 13:35:40,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:40,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879176832] [2022-01-10 13:35:40,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879176832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:40,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:40,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:35:40,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455323026] [2022-01-10 13:35:40,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:40,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:35:40,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:40,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:35:40,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:35:40,646 INFO L87 Difference]: Start difference. First operand 33182 states and 39478 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:42,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:42,082 INFO L93 Difference]: Finished difference Result 57993 states and 68011 transitions. [2022-01-10 13:35:42,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:35:42,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 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 160 [2022-01-10 13:35:42,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:42,127 INFO L225 Difference]: With dead ends: 57993 [2022-01-10 13:35:42,127 INFO L226 Difference]: Without dead ends: 26955 [2022-01-10 13:35:42,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 13:35:42,150 INFO L933 BasicCegarLoop]: 4418 mSDtfsCounter, 1107 mSDsluCounter, 12476 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 16894 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:42,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1107 Valid, 16894 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:42,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26955 states. [2022-01-10 13:35:43,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26955 to 23681. [2022-01-10 13:35:43,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23681 states, 23678 states have (on average 1.1926260663907424) internal successors, (28239), 23680 states have internal predecessors, (28239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:43,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23681 states to 23681 states and 28239 transitions. [2022-01-10 13:35:43,202 INFO L78 Accepts]: Start accepts. Automaton has 23681 states and 28239 transitions. Word has length 160 [2022-01-10 13:35:43,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:43,203 INFO L470 AbstractCegarLoop]: Abstraction has 23681 states and 28239 transitions. [2022-01-10 13:35:43,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:43,203 INFO L276 IsEmpty]: Start isEmpty. Operand 23681 states and 28239 transitions. [2022-01-10 13:35:43,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-10 13:35:43,211 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:43,211 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:35:43,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 13:35:43,211 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:43,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:43,212 INFO L85 PathProgramCache]: Analyzing trace with hash -253730100, now seen corresponding path program 1 times [2022-01-10 13:35:43,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:43,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864957946] [2022-01-10 13:35:43,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:43,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:43,259 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-10 13:35:43,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:43,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864957946] [2022-01-10 13:35:43,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864957946] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:43,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:43,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:35:43,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530612467] [2022-01-10 13:35:43,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:43,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:35:43,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:43,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:35:43,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:35:43,260 INFO L87 Difference]: Start difference. First operand 23681 states and 28239 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:44,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:44,399 INFO L93 Difference]: Finished difference Result 45503 states and 52830 transitions. [2022-01-10 13:35:44,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:35:44,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 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 160 [2022-01-10 13:35:44,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:44,435 INFO L225 Difference]: With dead ends: 45503 [2022-01-10 13:35:44,435 INFO L226 Difference]: Without dead ends: 23984 [2022-01-10 13:35:44,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 13:35:44,459 INFO L933 BasicCegarLoop]: 4365 mSDtfsCounter, 872 mSDsluCounter, 12679 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 17044 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:44,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [872 Valid, 17044 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:35:44,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23984 states. [2022-01-10 13:35:45,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23984 to 20228. [2022-01-10 13:35:45,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20228 states, 20225 states have (on average 1.1853152039555006) internal successors, (23973), 20227 states have internal predecessors, (23973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:45,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20228 states to 20228 states and 23973 transitions. [2022-01-10 13:35:45,493 INFO L78 Accepts]: Start accepts. Automaton has 20228 states and 23973 transitions. Word has length 160 [2022-01-10 13:35:45,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:45,493 INFO L470 AbstractCegarLoop]: Abstraction has 20228 states and 23973 transitions. [2022-01-10 13:35:45,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:45,493 INFO L276 IsEmpty]: Start isEmpty. Operand 20228 states and 23973 transitions. [2022-01-10 13:35:45,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-01-10 13:35:45,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:45,502 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:35:45,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 13:35:45,502 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:45,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:45,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1028031953, now seen corresponding path program 1 times [2022-01-10 13:35:45,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:45,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168425069] [2022-01-10 13:35:45,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:45,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:45,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:45,546 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-10 13:35:45,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:45,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168425069] [2022-01-10 13:35:45,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168425069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:45,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:45,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:35:45,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606176959] [2022-01-10 13:35:45,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:45,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:35:45,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:45,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:35:45,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:35:45,548 INFO L87 Difference]: Start difference. First operand 20228 states and 23973 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:46,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:46,582 INFO L93 Difference]: Finished difference Result 38093 states and 43689 transitions. [2022-01-10 13:35:46,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:35:46,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 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 199 [2022-01-10 13:35:46,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:46,611 INFO L225 Difference]: With dead ends: 38093 [2022-01-10 13:35:46,611 INFO L226 Difference]: Without dead ends: 20015 [2022-01-10 13:35:46,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 13:35:46,628 INFO L933 BasicCegarLoop]: 4337 mSDtfsCounter, 1003 mSDsluCounter, 12429 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 16766 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:46,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 16766 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:35:46,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20015 states. [2022-01-10 13:35:47,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20015 to 17763. [2022-01-10 13:35:47,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17763 states, 17760 states have (on average 1.1811373873873874) internal successors, (20977), 17762 states have internal predecessors, (20977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:47,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17763 states to 17763 states and 20977 transitions. [2022-01-10 13:35:47,516 INFO L78 Accepts]: Start accepts. Automaton has 17763 states and 20977 transitions. Word has length 199 [2022-01-10 13:35:47,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:47,517 INFO L470 AbstractCegarLoop]: Abstraction has 17763 states and 20977 transitions. [2022-01-10 13:35:47,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:35:47,517 INFO L276 IsEmpty]: Start isEmpty. Operand 17763 states and 20977 transitions. [2022-01-10 13:35:47,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-01-10 13:35:47,524 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:47,524 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:35:47,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 13:35:47,525 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:47,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:47,525 INFO L85 PathProgramCache]: Analyzing trace with hash 2104977100, now seen corresponding path program 1 times [2022-01-10 13:35:47,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:47,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862884208] [2022-01-10 13:35:47,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:47,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:47,573 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-10 13:35:47,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:47,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862884208] [2022-01-10 13:35:47,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862884208] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:47,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:47,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:35:47,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209058347] [2022-01-10 13:35:47,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:47,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:35:47,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:47,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:35:47,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:35:47,574 INFO L87 Difference]: Start difference. First operand 17763 states and 20977 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)