/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/systemc/pipeline.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:27:00,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:27:00,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:27:00,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 18:27:00,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:27:00,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:27:00,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:27:00,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:27:00,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:27:00,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:27:00,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:27:00,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:27:00,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:27:00,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:27:00,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:27:00,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:27:00,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 18:27:00,735 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 18:27:00,755 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:27:00,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:27:00,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:27:00,755 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:27:00,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:27:00,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:27:00,756 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:27:00,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:27:00,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:27:00,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:27:00,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:27:00,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:27:00,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:27:00,757 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:27:00,757 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:27:00,757 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:27:00,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:27:00,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:27:00,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:27:00,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:27:00,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:27:00,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:27:00,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:27:00,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:27:00,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:27:00,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:27:00,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:27:00,758 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:27:00,758 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:27:00,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:27:00,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:27:00,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:27:00,759 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:27:00,759 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:27:00,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:27:00,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:27:00,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:27:00,963 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:27:00,963 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:27:00,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pipeline.cil-1.c [2022-01-10 18:27:01,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/030f72661/9f1b68c04ced4737bc13de2f1e0b68c1/FLAG20e378fbb [2022-01-10 18:27:01,383 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:27:01,384 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pipeline.cil-1.c [2022-01-10 18:27:01,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/030f72661/9f1b68c04ced4737bc13de2f1e0b68c1/FLAG20e378fbb [2022-01-10 18:27:01,399 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/030f72661/9f1b68c04ced4737bc13de2f1e0b68c1 [2022-01-10 18:27:01,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:27:01,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:27:01,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:27:01,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:27:01,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:27:01,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:27:01" (1/1) ... [2022-01-10 18:27:01,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b62ede1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:27:01, skipping insertion in model container [2022-01-10 18:27:01,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:27:01" (1/1) ... [2022-01-10 18:27:01,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:27:01,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:27:01,569 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/pipeline.cil-1.c[640,653] [2022-01-10 18:27:01,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:27:01,625 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:27:01,633 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/pipeline.cil-1.c[640,653] [2022-01-10 18:27:01,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:27:01,687 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:27:01,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:27:01 WrapperNode [2022-01-10 18:27:01,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:27:01,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:27:01,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:27:01,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:27:01,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:27:01" (1/1) ... [2022-01-10 18:27:01,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:27:01" (1/1) ... [2022-01-10 18:27:01,756 INFO L137 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 12, calls inlined = 24, statements flattened = 1037 [2022-01-10 18:27:01,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:27:01,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:27:01,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:27:01,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:27:01,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:27:01" (1/1) ... [2022-01-10 18:27:01,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:27:01" (1/1) ... [2022-01-10 18:27:01,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:27:01" (1/1) ... [2022-01-10 18:27:01,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:27:01" (1/1) ... [2022-01-10 18:27:01,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:27:01" (1/1) ... [2022-01-10 18:27:01,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:27:01" (1/1) ... [2022-01-10 18:27:01,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:27:01" (1/1) ... [2022-01-10 18:27:01,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:27:01,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:27:01,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:27:01,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:27:01,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:27:01" (1/1) ... [2022-01-10 18:27:01,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:27:01,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:27:01,862 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 18:27:01,868 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 18:27:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:27:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:27:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:27:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:27:01,970 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:27:01,971 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:27:02,709 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:27:02,722 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:27:02,723 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-01-10 18:27:02,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:27:02 BoogieIcfgContainer [2022-01-10 18:27:02,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:27:02,727 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:27:02,727 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:27:02,727 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:27:02,730 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:27:02" (1/1) ... [2022-01-10 18:27:02,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:27:02 BasicIcfg [2022-01-10 18:27:02,899 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:27:02,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:27:02,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:27:02,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:27:02,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:27:01" (1/4) ... [2022-01-10 18:27:02,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60098371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:27:02, skipping insertion in model container [2022-01-10 18:27:02,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:27:01" (2/4) ... [2022-01-10 18:27:02,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60098371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:27:02, skipping insertion in model container [2022-01-10 18:27:02,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:27:02" (3/4) ... [2022-01-10 18:27:02,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60098371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:27:02, skipping insertion in model container [2022-01-10 18:27:02,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:27:02" (4/4) ... [2022-01-10 18:27:02,904 INFO L111 eAbstractionObserver]: Analyzing ICFG pipeline.cil-1.cTransformedIcfg [2022-01-10 18:27:02,908 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:27:02,908 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 18:27:02,938 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:27:02,942 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 18:27:02,943 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 18:27:02,971 INFO L276 IsEmpty]: Start isEmpty. Operand has 423 states, 421 states have (on average 1.817102137767221) internal successors, (765), 422 states have internal predecessors, (765), 0 states have call successors, (0), 0 states 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 18:27:02,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-10 18:27:02,978 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:02,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:27:02,978 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:02,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:02,982 INFO L85 PathProgramCache]: Analyzing trace with hash 2047794772, now seen corresponding path program 1 times [2022-01-10 18:27:02,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:02,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267280670] [2022-01-10 18:27:02,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:02,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:03,161 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 18:27:03,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:03,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267280670] [2022-01-10 18:27:03,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267280670] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:03,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:03,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:03,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224697578] [2022-01-10 18:27:03,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:03,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:03,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:03,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:03,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:03,210 INFO L87 Difference]: Start difference. First operand has 423 states, 421 states have (on average 1.817102137767221) internal successors, (765), 422 states have internal predecessors, (765), 0 states have call successors, (0), 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 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 18:27:03,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:03,295 INFO L93 Difference]: Finished difference Result 813 states and 1480 transitions. [2022-01-10 18:27:03,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:03,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2022-01-10 18:27:03,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:03,307 INFO L225 Difference]: With dead ends: 813 [2022-01-10 18:27:03,307 INFO L226 Difference]: Without dead ends: 418 [2022-01-10 18:27:03,310 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 18:27:03,312 INFO L933 BasicCegarLoop]: 740 mSDtfsCounter, 733 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:03,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [733 Valid, 740 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:27:03,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-01-10 18:27:03,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2022-01-10 18:27:03,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 417 states have (on average 1.7817745803357314) internal successors, (743), 417 states have internal predecessors, (743), 0 states have call successors, (0), 0 states 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 18:27:03,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 743 transitions. [2022-01-10 18:27:03,352 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 743 transitions. Word has length 87 [2022-01-10 18:27:03,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:03,353 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 743 transitions. [2022-01-10 18:27:03,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 18:27:03,353 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 743 transitions. [2022-01-10 18:27:03,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 18:27:03,357 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:03,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:03,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:27:03,358 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:03,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:03,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1922217363, now seen corresponding path program 1 times [2022-01-10 18:27:03,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:03,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140826063] [2022-01-10 18:27:03,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:03,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:03,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:27:03,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:03,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140826063] [2022-01-10 18:27:03,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140826063] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:03,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:03,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:03,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927519490] [2022-01-10 18:27:03,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:03,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:03,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:03,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:03,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:03,539 INFO L87 Difference]: Start difference. First operand 418 states and 743 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:03,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:03,556 INFO L93 Difference]: Finished difference Result 807 states and 1439 transitions. [2022-01-10 18:27:03,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:03,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 18:27:03,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:03,559 INFO L225 Difference]: With dead ends: 807 [2022-01-10 18:27:03,559 INFO L226 Difference]: Without dead ends: 418 [2022-01-10 18:27:03,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:03,567 INFO L933 BasicCegarLoop]: 737 mSDtfsCounter, 729 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:03,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [729 Valid, 737 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:27:03,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-01-10 18:27:03,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2022-01-10 18:27:03,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 417 states have (on average 1.774580335731415) internal successors, (740), 417 states have internal predecessors, (740), 0 states have call successors, (0), 0 states 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 18:27:03,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 740 transitions. [2022-01-10 18:27:03,586 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 740 transitions. Word has length 181 [2022-01-10 18:27:03,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:03,586 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 740 transitions. [2022-01-10 18:27:03,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:03,586 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 740 transitions. [2022-01-10 18:27:03,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 18:27:03,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:03,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:03,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 18:27:03,590 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:03,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:03,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1092281741, now seen corresponding path program 1 times [2022-01-10 18:27:03,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:03,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675532827] [2022-01-10 18:27:03,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:03,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:03,697 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 18:27:03,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:03,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675532827] [2022-01-10 18:27:03,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675532827] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:03,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:03,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:03,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864184797] [2022-01-10 18:27:03,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:03,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:03,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:03,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:03,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:03,700 INFO L87 Difference]: Start difference. First operand 418 states and 740 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:03,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:03,722 INFO L93 Difference]: Finished difference Result 806 states and 1432 transitions. [2022-01-10 18:27:03,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:03,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 18:27:03,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:03,725 INFO L225 Difference]: With dead ends: 806 [2022-01-10 18:27:03,725 INFO L226 Difference]: Without dead ends: 418 [2022-01-10 18:27:03,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:03,731 INFO L933 BasicCegarLoop]: 734 mSDtfsCounter, 725 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:03,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [725 Valid, 734 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:27:03,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-01-10 18:27:03,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2022-01-10 18:27:03,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 417 states have (on average 1.7673860911270982) internal successors, (737), 417 states have internal predecessors, (737), 0 states have call successors, (0), 0 states 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 18:27:03,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 737 transitions. [2022-01-10 18:27:03,748 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 737 transitions. Word has length 181 [2022-01-10 18:27:03,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:03,749 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 737 transitions. [2022-01-10 18:27:03,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:03,749 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 737 transitions. [2022-01-10 18:27:03,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 18:27:03,757 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:03,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:03,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 18:27:03,758 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:03,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:03,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1581422995, now seen corresponding path program 1 times [2022-01-10 18:27:03,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:03,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8544771] [2022-01-10 18:27:03,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:03,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:03,915 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 18:27:03,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:03,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8544771] [2022-01-10 18:27:03,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8544771] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:03,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:03,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:03,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28111073] [2022-01-10 18:27:03,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:03,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:03,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:03,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:03,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:03,919 INFO L87 Difference]: Start difference. First operand 418 states and 737 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:03,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:03,937 INFO L93 Difference]: Finished difference Result 805 states and 1425 transitions. [2022-01-10 18:27:03,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:03,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 18:27:03,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:03,939 INFO L225 Difference]: With dead ends: 805 [2022-01-10 18:27:03,939 INFO L226 Difference]: Without dead ends: 418 [2022-01-10 18:27:03,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:03,944 INFO L933 BasicCegarLoop]: 731 mSDtfsCounter, 721 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:03,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [721 Valid, 731 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:27:03,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-01-10 18:27:03,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2022-01-10 18:27:03,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 417 states have (on average 1.7601918465227817) internal successors, (734), 417 states have internal predecessors, (734), 0 states have call successors, (0), 0 states 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 18:27:03,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 734 transitions. [2022-01-10 18:27:03,956 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 734 transitions. Word has length 181 [2022-01-10 18:27:03,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:03,956 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 734 transitions. [2022-01-10 18:27:03,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:03,956 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 734 transitions. [2022-01-10 18:27:03,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 18:27:03,957 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:03,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:03,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:27:03,958 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:03,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:03,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1926338740, now seen corresponding path program 1 times [2022-01-10 18:27:03,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:03,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830781305] [2022-01-10 18:27:03,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:03,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:04,015 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 18:27:04,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:04,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830781305] [2022-01-10 18:27:04,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830781305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:04,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:04,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:04,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147488176] [2022-01-10 18:27:04,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:04,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:04,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:04,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:04,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:04,017 INFO L87 Difference]: Start difference. First operand 418 states and 734 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:04,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:04,031 INFO L93 Difference]: Finished difference Result 804 states and 1418 transitions. [2022-01-10 18:27:04,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:04,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 18:27:04,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:04,032 INFO L225 Difference]: With dead ends: 804 [2022-01-10 18:27:04,032 INFO L226 Difference]: Without dead ends: 418 [2022-01-10 18:27:04,033 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 18:27:04,033 INFO L933 BasicCegarLoop]: 728 mSDtfsCounter, 717 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:04,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [717 Valid, 728 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:27:04,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-01-10 18:27:04,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2022-01-10 18:27:04,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 417 states have (on average 1.7529976019184652) internal successors, (731), 417 states have internal predecessors, (731), 0 states have call successors, (0), 0 states 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 18:27:04,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 731 transitions. [2022-01-10 18:27:04,041 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 731 transitions. Word has length 181 [2022-01-10 18:27:04,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:04,041 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 731 transitions. [2022-01-10 18:27:04,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:04,041 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 731 transitions. [2022-01-10 18:27:04,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 18:27:04,042 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:04,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:04,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 18:27:04,043 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:04,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:04,043 INFO L85 PathProgramCache]: Analyzing trace with hash 2084282412, now seen corresponding path program 1 times [2022-01-10 18:27:04,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:04,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554430354] [2022-01-10 18:27:04,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:04,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:04,080 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 18:27:04,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:04,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554430354] [2022-01-10 18:27:04,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554430354] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:04,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:04,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:04,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122816267] [2022-01-10 18:27:04,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:04,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:04,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:04,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:04,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:04,081 INFO L87 Difference]: Start difference. First operand 418 states and 731 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:04,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:04,139 INFO L93 Difference]: Finished difference Result 1217 states and 2136 transitions. [2022-01-10 18:27:04,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:04,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 18:27:04,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:04,142 INFO L225 Difference]: With dead ends: 1217 [2022-01-10 18:27:04,142 INFO L226 Difference]: Without dead ends: 832 [2022-01-10 18:27:04,143 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 18:27:04,143 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 698 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:04,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [698 Valid, 1421 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:27:04,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-01-10 18:27:04,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 830. [2022-01-10 18:27:04,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 829 states have (on average 1.7406513872135103) internal successors, (1443), 829 states have internal predecessors, (1443), 0 states have call successors, (0), 0 states 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 18:27:04,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1443 transitions. [2022-01-10 18:27:04,167 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1443 transitions. Word has length 181 [2022-01-10 18:27:04,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:04,167 INFO L470 AbstractCegarLoop]: Abstraction has 830 states and 1443 transitions. [2022-01-10 18:27:04,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:04,167 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1443 transitions. [2022-01-10 18:27:04,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 18:27:04,168 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:04,169 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:04,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 18:27:04,169 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:04,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:04,169 INFO L85 PathProgramCache]: Analyzing trace with hash 893001772, now seen corresponding path program 1 times [2022-01-10 18:27:04,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:04,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577091580] [2022-01-10 18:27:04,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:04,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:04,225 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 18:27:04,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:04,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577091580] [2022-01-10 18:27:04,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577091580] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:04,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:04,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:04,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926114453] [2022-01-10 18:27:04,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:04,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:04,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:04,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:04,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:04,228 INFO L87 Difference]: Start difference. First operand 830 states and 1443 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:04,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:04,296 INFO L93 Difference]: Finished difference Result 2416 states and 4214 transitions. [2022-01-10 18:27:04,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:04,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 18:27:04,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:04,301 INFO L225 Difference]: With dead ends: 2416 [2022-01-10 18:27:04,301 INFO L226 Difference]: Without dead ends: 1650 [2022-01-10 18:27:04,302 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 18:27:04,303 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 697 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:04,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [697 Valid, 1416 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:27:04,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2022-01-10 18:27:04,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1648. [2022-01-10 18:27:04,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1647 states have (on average 1.7273831208257437) internal successors, (2845), 1647 states have internal predecessors, (2845), 0 states have call successors, (0), 0 states 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 18:27:04,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2845 transitions. [2022-01-10 18:27:04,336 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2845 transitions. Word has length 181 [2022-01-10 18:27:04,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:04,336 INFO L470 AbstractCegarLoop]: Abstraction has 1648 states and 2845 transitions. [2022-01-10 18:27:04,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:04,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2845 transitions. [2022-01-10 18:27:04,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 18:27:04,339 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:04,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:04,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 18:27:04,339 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:04,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:04,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1533811669, now seen corresponding path program 1 times [2022-01-10 18:27:04,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:04,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447555453] [2022-01-10 18:27:04,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:04,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:04,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:27:04,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:04,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447555453] [2022-01-10 18:27:04,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447555453] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:04,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:04,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:04,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969136283] [2022-01-10 18:27:04,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:04,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:04,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:04,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:04,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:04,383 INFO L87 Difference]: Start difference. First operand 1648 states and 2845 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:04,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:04,460 INFO L93 Difference]: Finished difference Result 4784 states and 8283 transitions. [2022-01-10 18:27:04,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:04,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 18:27:04,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:04,472 INFO L225 Difference]: With dead ends: 4784 [2022-01-10 18:27:04,472 INFO L226 Difference]: Without dead ends: 3262 [2022-01-10 18:27:04,477 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 18:27:04,477 INFO L933 BasicCegarLoop]: 724 mSDtfsCounter, 695 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:04,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [695 Valid, 1405 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:27:04,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2022-01-10 18:27:04,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 3260. [2022-01-10 18:27:04,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3260 states, 3259 states have (on average 1.7137158637618901) internal successors, (5585), 3259 states have internal predecessors, (5585), 0 states have call successors, (0), 0 states 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 18:27:04,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3260 states to 3260 states and 5585 transitions. [2022-01-10 18:27:04,574 INFO L78 Accepts]: Start accepts. Automaton has 3260 states and 5585 transitions. Word has length 181 [2022-01-10 18:27:04,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:04,576 INFO L470 AbstractCegarLoop]: Abstraction has 3260 states and 5585 transitions. [2022-01-10 18:27:04,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:04,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3260 states and 5585 transitions. [2022-01-10 18:27:04,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 18:27:04,580 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:04,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:04,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 18:27:04,580 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:04,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:04,581 INFO L85 PathProgramCache]: Analyzing trace with hash 659730699, now seen corresponding path program 1 times [2022-01-10 18:27:04,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:04,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259476677] [2022-01-10 18:27:04,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:04,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:04,630 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 18:27:04,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:04,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259476677] [2022-01-10 18:27:04,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259476677] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:04,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:04,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:04,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087426149] [2022-01-10 18:27:04,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:04,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:04,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:04,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:04,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:04,633 INFO L87 Difference]: Start difference. First operand 3260 states and 5585 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:04,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:04,736 INFO L93 Difference]: Finished difference Result 9496 states and 16311 transitions. [2022-01-10 18:27:04,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:04,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 18:27:04,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:04,756 INFO L225 Difference]: With dead ends: 9496 [2022-01-10 18:27:04,756 INFO L226 Difference]: Without dead ends: 6462 [2022-01-10 18:27:04,762 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 18:27:04,764 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 694 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:04,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [694 Valid, 1401 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:27:04,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6462 states. [2022-01-10 18:27:04,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6462 to 6460. [2022-01-10 18:27:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6460 states, 6459 states have (on average 1.6994890849976776) internal successors, (10977), 6459 states have internal predecessors, (10977), 0 states have call successors, (0), 0 states 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 18:27:04,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6460 states to 6460 states and 10977 transitions. [2022-01-10 18:27:04,895 INFO L78 Accepts]: Start accepts. Automaton has 6460 states and 10977 transitions. Word has length 181 [2022-01-10 18:27:04,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:04,895 INFO L470 AbstractCegarLoop]: Abstraction has 6460 states and 10977 transitions. [2022-01-10 18:27:04,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:04,895 INFO L276 IsEmpty]: Start isEmpty. Operand 6460 states and 10977 transitions. [2022-01-10 18:27:04,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 18:27:04,903 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:04,903 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:04,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 18:27:04,904 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:04,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:04,904 INFO L85 PathProgramCache]: Analyzing trace with hash 596717835, now seen corresponding path program 1 times [2022-01-10 18:27:04,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:04,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984972390] [2022-01-10 18:27:04,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:04,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:04,955 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 18:27:04,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:04,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984972390] [2022-01-10 18:27:04,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984972390] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:04,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:04,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:04,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774373769] [2022-01-10 18:27:04,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:04,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:04,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:04,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:04,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:04,957 INFO L87 Difference]: Start difference. First operand 6460 states and 10977 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:05,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:05,168 INFO L93 Difference]: Finished difference Result 18864 states and 32131 transitions. [2022-01-10 18:27:05,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:05,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 18:27:05,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:05,215 INFO L225 Difference]: With dead ends: 18864 [2022-01-10 18:27:05,215 INFO L226 Difference]: Without dead ends: 12814 [2022-01-10 18:27:05,223 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 18:27:05,224 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 693 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:05,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [693 Valid, 1396 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:27:05,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12814 states. [2022-01-10 18:27:05,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12814 to 12812. [2022-01-10 18:27:05,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12812 states, 12811 states have (on average 1.684880181094372) internal successors, (21585), 12811 states have internal predecessors, (21585), 0 states have call successors, (0), 0 states 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 18:27:05,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12812 states to 12812 states and 21585 transitions. [2022-01-10 18:27:05,479 INFO L78 Accepts]: Start accepts. Automaton has 12812 states and 21585 transitions. Word has length 181 [2022-01-10 18:27:05,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:05,479 INFO L470 AbstractCegarLoop]: Abstraction has 12812 states and 21585 transitions. [2022-01-10 18:27:05,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:05,480 INFO L276 IsEmpty]: Start isEmpty. Operand 12812 states and 21585 transitions. [2022-01-10 18:27:05,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 18:27:05,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:05,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:05,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 18:27:05,494 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:05,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:05,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1009962122, now seen corresponding path program 1 times [2022-01-10 18:27:05,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:05,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393602637] [2022-01-10 18:27:05,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:05,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:05,543 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 18:27:05,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:05,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393602637] [2022-01-10 18:27:05,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393602637] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:05,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:05,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:05,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129282986] [2022-01-10 18:27:05,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:05,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:05,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:05,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:05,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:05,545 INFO L87 Difference]: Start difference. First operand 12812 states and 21585 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:05,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:05,841 INFO L93 Difference]: Finished difference Result 37488 states and 63299 transitions. [2022-01-10 18:27:05,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:05,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 18:27:05,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:05,885 INFO L225 Difference]: With dead ends: 37488 [2022-01-10 18:27:05,885 INFO L226 Difference]: Without dead ends: 25422 [2022-01-10 18:27:05,908 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 18:27:05,908 INFO L933 BasicCegarLoop]: 724 mSDtfsCounter, 692 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:05,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [692 Valid, 1390 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:27:05,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25422 states. [2022-01-10 18:27:06,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25422 to 25420. [2022-01-10 18:27:06,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25420 states, 25419 states have (on average 1.6699712813249932) internal successors, (42449), 25419 states have internal predecessors, (42449), 0 states have call successors, (0), 0 states 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 18:27:06,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25420 states to 25420 states and 42449 transitions. [2022-01-10 18:27:06,419 INFO L78 Accepts]: Start accepts. Automaton has 25420 states and 42449 transitions. Word has length 181 [2022-01-10 18:27:06,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:06,419 INFO L470 AbstractCegarLoop]: Abstraction has 25420 states and 42449 transitions. [2022-01-10 18:27:06,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:06,420 INFO L276 IsEmpty]: Start isEmpty. Operand 25420 states and 42449 transitions. [2022-01-10 18:27:06,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 18:27:06,551 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:06,551 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:06,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 18:27:06,551 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:06,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:06,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1684181704, now seen corresponding path program 1 times [2022-01-10 18:27:06,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:06,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126589640] [2022-01-10 18:27:06,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:06,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:06,581 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 18:27:06,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:06,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126589640] [2022-01-10 18:27:06,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126589640] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:06,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:06,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:06,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628144123] [2022-01-10 18:27:06,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:06,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:06,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:06,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:06,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:06,583 INFO L87 Difference]: Start difference. First operand 25420 states and 42449 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:07,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:07,099 INFO L93 Difference]: Finished difference Result 74128 states and 123923 transitions. [2022-01-10 18:27:07,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:07,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 18:27:07,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:07,191 INFO L225 Difference]: With dead ends: 74128 [2022-01-10 18:27:07,191 INFO L226 Difference]: Without dead ends: 50062 [2022-01-10 18:27:07,218 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 18:27:07,218 INFO L933 BasicCegarLoop]: 719 mSDtfsCounter, 679 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:07,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [679 Valid, 1380 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:27:07,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50062 states. [2022-01-10 18:27:07,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50062 to 50060. [2022-01-10 18:27:07,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50060 states, 50059 states have (on average 1.652150462454304) internal successors, (82705), 50059 states have internal predecessors, (82705), 0 states have call successors, (0), 0 states 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 18:27:08,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50060 states to 50060 states and 82705 transitions. [2022-01-10 18:27:08,172 INFO L78 Accepts]: Start accepts. Automaton has 50060 states and 82705 transitions. Word has length 181 [2022-01-10 18:27:08,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:08,173 INFO L470 AbstractCegarLoop]: Abstraction has 50060 states and 82705 transitions. [2022-01-10 18:27:08,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:08,173 INFO L276 IsEmpty]: Start isEmpty. Operand 50060 states and 82705 transitions. [2022-01-10 18:27:08,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 18:27:08,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:08,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:08,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 18:27:08,226 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:08,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:08,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1264565639, now seen corresponding path program 1 times [2022-01-10 18:27:08,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:08,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181900104] [2022-01-10 18:27:08,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:08,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:08,322 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 18:27:08,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:08,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181900104] [2022-01-10 18:27:08,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181900104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:08,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:08,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:08,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477434045] [2022-01-10 18:27:08,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:08,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:08,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:08,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:08,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:08,324 INFO L87 Difference]: Start difference. First operand 50060 states and 82705 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:09,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:09,278 INFO L93 Difference]: Finished difference Result 145488 states and 241107 transitions. [2022-01-10 18:27:09,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:09,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 18:27:09,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:09,457 INFO L225 Difference]: With dead ends: 145488 [2022-01-10 18:27:09,457 INFO L226 Difference]: Without dead ends: 97806 [2022-01-10 18:27:09,496 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 18:27:09,497 INFO L933 BasicCegarLoop]: 691 mSDtfsCounter, 654 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:09,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [654 Valid, 1285 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:27:09,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97806 states. [2022-01-10 18:27:10,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97806 to 97484. [2022-01-10 18:27:11,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97484 states, 97483 states have (on average 1.5981555758439934) internal successors, (155793), 97483 states have internal predecessors, (155793), 0 states have call successors, (0), 0 states 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 18:27:11,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97484 states to 97484 states and 155793 transitions. [2022-01-10 18:27:11,203 INFO L78 Accepts]: Start accepts. Automaton has 97484 states and 155793 transitions. Word has length 181 [2022-01-10 18:27:11,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:11,203 INFO L470 AbstractCegarLoop]: Abstraction has 97484 states and 155793 transitions. [2022-01-10 18:27:11,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:11,203 INFO L276 IsEmpty]: Start isEmpty. Operand 97484 states and 155793 transitions. [2022-01-10 18:27:11,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 18:27:11,427 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:11,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:11,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 18:27:11,441 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:11,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:11,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1893899099, now seen corresponding path program 1 times [2022-01-10 18:27:11,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:11,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717694207] [2022-01-10 18:27:11,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:11,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:11,476 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 18:27:11,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:11,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717694207] [2022-01-10 18:27:11,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717694207] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:11,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:11,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:11,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901744778] [2022-01-10 18:27:11,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:11,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:11,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:11,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:11,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:11,478 INFO L87 Difference]: Start difference. First operand 97484 states and 155793 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:12,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:12,825 INFO L93 Difference]: Finished difference Result 236368 states and 376851 transitions. [2022-01-10 18:27:12,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:12,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 18:27:12,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:13,012 INFO L225 Difference]: With dead ends: 236368 [2022-01-10 18:27:13,012 INFO L226 Difference]: Without dead ends: 143310 [2022-01-10 18:27:13,065 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 18:27:13,065 INFO L933 BasicCegarLoop]: 719 mSDtfsCounter, 683 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:13,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [683 Valid, 1331 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:27:13,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143310 states. [2022-01-10 18:27:15,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143310 to 142988. [2022-01-10 18:27:15,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142988 states, 142987 states have (on average 1.5644569086700189) internal successors, (223697), 142987 states have internal predecessors, (223697), 0 states have call successors, (0), 0 states 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 18:27:15,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142988 states to 142988 states and 223697 transitions. [2022-01-10 18:27:15,579 INFO L78 Accepts]: Start accepts. Automaton has 142988 states and 223697 transitions. Word has length 181 [2022-01-10 18:27:15,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:15,579 INFO L470 AbstractCegarLoop]: Abstraction has 142988 states and 223697 transitions. [2022-01-10 18:27:15,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:15,579 INFO L276 IsEmpty]: Start isEmpty. Operand 142988 states and 223697 transitions. [2022-01-10 18:27:15,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 18:27:15,678 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:15,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:15,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 18:27:15,679 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:15,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:15,679 INFO L85 PathProgramCache]: Analyzing trace with hash 27170724, now seen corresponding path program 1 times [2022-01-10 18:27:15,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:15,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777406868] [2022-01-10 18:27:15,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:15,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:15,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:27:15,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:15,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777406868] [2022-01-10 18:27:15,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777406868] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:15,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:15,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:15,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091054450] [2022-01-10 18:27:15,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:15,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:15,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:15,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:15,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:15,707 INFO L87 Difference]: Start difference. First operand 142988 states and 223697 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:18,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:18,211 INFO L93 Difference]: Finished difference Result 426756 states and 668159 transitions. [2022-01-10 18:27:18,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:18,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 18:27:18,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:18,620 INFO L225 Difference]: With dead ends: 426756 [2022-01-10 18:27:18,621 INFO L226 Difference]: Without dead ends: 285954 [2022-01-10 18:27:18,719 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 18:27:18,720 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 681 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:18,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [681 Valid, 1411 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:27:19,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285954 states. [2022-01-10 18:27:22,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285954 to 285952. [2022-01-10 18:27:22,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285952 states, 285951 states have (on average 1.5496815888036761) internal successors, (443133), 285951 states have internal predecessors, (443133), 0 states have call successors, (0), 0 states 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 18:27:23,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285952 states to 285952 states and 443133 transitions. [2022-01-10 18:27:23,648 INFO L78 Accepts]: Start accepts. Automaton has 285952 states and 443133 transitions. Word has length 181 [2022-01-10 18:27:23,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:23,649 INFO L470 AbstractCegarLoop]: Abstraction has 285952 states and 443133 transitions. [2022-01-10 18:27:23,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:23,649 INFO L276 IsEmpty]: Start isEmpty. Operand 285952 states and 443133 transitions. [2022-01-10 18:27:23,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 18:27:23,835 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:23,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:23,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 18:27:23,836 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:23,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:23,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1756707197, now seen corresponding path program 1 times [2022-01-10 18:27:23,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:23,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648067424] [2022-01-10 18:27:23,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:23,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:23,863 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 18:27:23,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:23,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648067424] [2022-01-10 18:27:23,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648067424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:23,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:23,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:23,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712852959] [2022-01-10 18:27:23,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:23,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:23,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:23,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:23,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:23,864 INFO L87 Difference]: Start difference. First operand 285952 states and 443133 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:26,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:26,564 INFO L93 Difference]: Finished difference Result 496898 states and 769790 transitions. [2022-01-10 18:27:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:26,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-01-10 18:27:26,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:26,963 INFO L225 Difference]: With dead ends: 496898 [2022-01-10 18:27:26,964 INFO L226 Difference]: Without dead ends: 285952 [2022-01-10 18:27:27,045 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 18:27:27,046 INFO L933 BasicCegarLoop]: 727 mSDtfsCounter, 89 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:27,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 1342 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:27:27,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285952 states. [2022-01-10 18:27:30,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285952 to 285952. [2022-01-10 18:27:31,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285952 states, 285951 states have (on average 1.5443100391325786) internal successors, (441597), 285951 states have internal predecessors, (441597), 0 states have call successors, (0), 0 states 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 18:27:31,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285952 states to 285952 states and 441597 transitions. [2022-01-10 18:27:31,849 INFO L78 Accepts]: Start accepts. Automaton has 285952 states and 441597 transitions. Word has length 181 [2022-01-10 18:27:31,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:31,849 INFO L470 AbstractCegarLoop]: Abstraction has 285952 states and 441597 transitions. [2022-01-10 18:27:31,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:27:31,850 INFO L276 IsEmpty]: Start isEmpty. Operand 285952 states and 441597 transitions. [2022-01-10 18:27:32,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-01-10 18:27:32,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:32,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:32,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 18:27:32,055 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:32,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:32,055 INFO L85 PathProgramCache]: Analyzing trace with hash 518211915, now seen corresponding path program 1 times [2022-01-10 18:27:32,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:32,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72764870] [2022-01-10 18:27:32,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:32,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:32,098 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 18:27:32,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:32,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72764870] [2022-01-10 18:27:32,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72764870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:32,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:32,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:27:32,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997871957] [2022-01-10 18:27:32,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:32,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:27:32,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:32,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:27:32,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:27:32,100 INFO L87 Difference]: Start difference. First operand 285952 states and 441597 transitions. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 0 states have call successors, (0), 0 states 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 18:27:34,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:34,892 INFO L93 Difference]: Finished difference Result 510466 states and 787710 transitions. [2022-01-10 18:27:34,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:27:34,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 0 states have call successors, (0), 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 183 [2022-01-10 18:27:34,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:35,286 INFO L225 Difference]: With dead ends: 510466 [2022-01-10 18:27:35,287 INFO L226 Difference]: Without dead ends: 299520 [2022-01-10 18:27:35,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:27:35,388 INFO L933 BasicCegarLoop]: 724 mSDtfsCounter, 190 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:35,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 1601 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:27:35,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299520 states. [2022-01-10 18:27:39,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299520 to 299520. [2022-01-10 18:27:40,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299520 states, 299519 states have (on average 1.5440122329468247) internal successors, (462461), 299519 states have internal predecessors, (462461), 0 states have call successors, (0), 0 states 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 18:27:40,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299520 states to 299520 states and 462461 transitions. [2022-01-10 18:27:40,498 INFO L78 Accepts]: Start accepts. Automaton has 299520 states and 462461 transitions. Word has length 183 [2022-01-10 18:27:40,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:40,498 INFO L470 AbstractCegarLoop]: Abstraction has 299520 states and 462461 transitions. [2022-01-10 18:27:40,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 0 states have call successors, (0), 0 states 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 18:27:40,498 INFO L276 IsEmpty]: Start isEmpty. Operand 299520 states and 462461 transitions. [2022-01-10 18:27:41,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-01-10 18:27:41,008 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:41,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:41,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 18:27:41,009 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:41,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:41,009 INFO L85 PathProgramCache]: Analyzing trace with hash 762528683, now seen corresponding path program 1 times [2022-01-10 18:27:41,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:41,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939860054] [2022-01-10 18:27:41,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:41,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:41,040 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 18:27:41,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:41,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939860054] [2022-01-10 18:27:41,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939860054] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:41,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:41,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:41,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394962053] [2022-01-10 18:27:41,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:41,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:41,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:41,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:41,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:41,041 INFO L87 Difference]: Start difference. First operand 299520 states and 462461 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states 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 18:27:44,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:44,258 INFO L93 Difference]: Finished difference Result 595586 states and 924542 transitions. [2022-01-10 18:27:44,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:44,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 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 184 [2022-01-10 18:27:44,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:44,755 INFO L225 Difference]: With dead ends: 595586 [2022-01-10 18:27:44,755 INFO L226 Difference]: Without dead ends: 320768 [2022-01-10 18:27:44,893 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 18:27:44,894 INFO L933 BasicCegarLoop]: 777 mSDtfsCounter, 131 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:44,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 1408 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:27:45,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320768 states. [2022-01-10 18:27:49,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320768 to 320768. [2022-01-10 18:27:49,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320768 states, 320767 states have (on average 1.5257336322003199) internal successors, (489405), 320767 states have internal predecessors, (489405), 0 states have call successors, (0), 0 states 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 18:27:50,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320768 states to 320768 states and 489405 transitions. [2022-01-10 18:27:50,434 INFO L78 Accepts]: Start accepts. Automaton has 320768 states and 489405 transitions. Word has length 184 [2022-01-10 18:27:50,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:27:50,435 INFO L470 AbstractCegarLoop]: Abstraction has 320768 states and 489405 transitions. [2022-01-10 18:27:50,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states 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 18:27:50,435 INFO L276 IsEmpty]: Start isEmpty. Operand 320768 states and 489405 transitions. [2022-01-10 18:27:51,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-01-10 18:27:51,092 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:27:51,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:51,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 18:27:51,092 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:27:51,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:27:51,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1579303849, now seen corresponding path program 1 times [2022-01-10 18:27:51,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:27:51,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346024694] [2022-01-10 18:27:51,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:27:51,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:27:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:27:51,131 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 18:27:51,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:27:51,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346024694] [2022-01-10 18:27:51,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346024694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:27:51,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:27:51,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:27:51,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993344406] [2022-01-10 18:27:51,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:27:51,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:27:51,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:27:51,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:27:51,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:27:51,133 INFO L87 Difference]: Start difference. First operand 320768 states and 489405 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states 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 18:27:54,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:27:54,396 INFO L93 Difference]: Finished difference Result 656642 states and 999678 transitions. [2022-01-10 18:27:54,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:27:54,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 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 184 [2022-01-10 18:27:54,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:27:54,967 INFO L225 Difference]: With dead ends: 656642 [2022-01-10 18:27:54,967 INFO L226 Difference]: Without dead ends: 364160 [2022-01-10 18:27:55,124 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 18:27:55,124 INFO L933 BasicCegarLoop]: 856 mSDtfsCounter, 154 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:27:55,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 1553 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:27:55,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364160 states.