/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.05.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 01:22:32,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 01:22:32,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 01:22:32,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-11 01:22:32,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 01:22:32,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 01:22:32,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 01:22:32,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 01:22:32,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 01:22:32,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 01:22:32,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 01:22:32,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 01:22:32,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 01:22:32,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 01:22:32,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 01:22:32,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 01:22:32,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 01:22:32,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 01:22:32,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 01:22:32,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 01:22:32,979 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 01:22:33,003 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 01:22:33,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 01:22:33,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 01:22:33,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 01:22:33,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 01:22:33,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 01:22:33,005 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 01:22:33,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 01:22:33,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 01:22:33,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 01:22:33,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 01:22:33,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 01:22:33,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 01:22:33,006 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 01:22:33,006 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 01:22:33,006 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 01:22:33,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 01:22:33,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 01:22:33,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 01:22:33,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 01:22:33,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 01:22:33,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:22:33,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 01:22:33,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 01:22:33,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 01:22:33,007 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 01:22:33,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 01:22:33,008 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 01:22:33,008 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 01:22:33,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 01:22:33,008 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 01:22:33,008 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 01:22:33,009 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 01:22:33,010 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 01:22:33,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 01:22:33,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 01:22:33,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 01:22:33,215 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 01:22:33,216 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 01:22:33,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.05.cil-2.c [2022-01-11 01:22:33,270 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8823b9cfd/3af39af62d864b6faddc877be47d596e/FLAG623d9da87 [2022-01-11 01:22:33,999 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 01:22:34,000 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.05.cil-2.c [2022-01-11 01:22:34,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8823b9cfd/3af39af62d864b6faddc877be47d596e/FLAG623d9da87 [2022-01-11 01:22:34,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8823b9cfd/3af39af62d864b6faddc877be47d596e [2022-01-11 01:22:34,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 01:22:34,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 01:22:34,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 01:22:34,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 01:22:34,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 01:22:34,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:22:34" (1/1) ... [2022-01-11 01:22:34,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19d96c64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:34, skipping insertion in model container [2022-01-11 01:22:34,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:22:34" (1/1) ... [2022-01-11 01:22:34,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 01:22:34,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 01:22:35,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.05.cil-2.c[380593,380606] [2022-01-11 01:22:35,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.05.cil-2.c[383339,383352] [2022-01-11 01:22:35,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:22:35,689 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 01:22:36,294 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.05.cil-2.c[380593,380606] [2022-01-11 01:22:36,298 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.05.cil-2.c[383339,383352] [2022-01-11 01:22:36,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:22:36,359 INFO L208 MainTranslator]: Completed translation [2022-01-11 01:22:36,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:36 WrapperNode [2022-01-11 01:22:36,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 01:22:36,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 01:22:36,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 01:22:36,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 01:22:36,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:36" (1/1) ... [2022-01-11 01:22:36,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:36" (1/1) ... [2022-01-11 01:22:36,736 INFO L137 Inliner]: procedures = 55, calls = 57, calls flagged for inlining = 52, calls inlined = 105, statements flattened = 13688 [2022-01-11 01:22:36,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 01:22:36,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 01:22:36,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 01:22:36,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 01:22:36,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:36" (1/1) ... [2022-01-11 01:22:36,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:36" (1/1) ... [2022-01-11 01:22:36,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:36" (1/1) ... [2022-01-11 01:22:36,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:36" (1/1) ... [2022-01-11 01:22:37,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:36" (1/1) ... [2022-01-11 01:22:37,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:36" (1/1) ... [2022-01-11 01:22:37,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:36" (1/1) ... [2022-01-11 01:22:37,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 01:22:37,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 01:22:37,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 01:22:37,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 01:22:37,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:36" (1/1) ... [2022-01-11 01:22:37,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:22:37,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:22:37,264 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 01:22:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 01:22:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 01:22:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 01:22:37,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 01:22:37,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 01:22:37,424 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 01:22:37,425 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 01:22:43,560 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 01:22:43,611 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 01:22:43,611 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2022-01-11 01:22:43,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:22:43 BoogieIcfgContainer [2022-01-11 01:22:43,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 01:22:43,627 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 01:22:43,627 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 01:22:43,628 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 01:22:43,630 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:22:43" (1/1) ... [2022-01-11 01:22:44,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:22:44 BasicIcfg [2022-01-11 01:22:44,862 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 01:22:44,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 01:22:44,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 01:22:44,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 01:22:44,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:22:34" (1/4) ... [2022-01-11 01:22:44,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3610c877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:22:44, skipping insertion in model container [2022-01-11 01:22:44,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:36" (2/4) ... [2022-01-11 01:22:44,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3610c877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:22:44, skipping insertion in model container [2022-01-11 01:22:44,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:22:43" (3/4) ... [2022-01-11 01:22:44,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3610c877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:22:44, skipping insertion in model container [2022-01-11 01:22:44,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:22:44" (4/4) ... [2022-01-11 01:22:44,868 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.05.cil-2.cTransformedIcfg [2022-01-11 01:22:44,872 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 01:22:44,872 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 01:22:44,909 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 01:22:44,914 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 01:22:44,914 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 01:22:44,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 2744 states, 2740 states have (on average 1.802919708029197) internal successors, (4940), 2743 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:44,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 01:22:44,958 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:44,959 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] [2022-01-11 01:22:44,959 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:44,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:44,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2068063412, now seen corresponding path program 1 times [2022-01-11 01:22:44,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:44,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258994982] [2022-01-11 01:22:44,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:44,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:45,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:45,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:45,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258994982] [2022-01-11 01:22:45,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258994982] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:45,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:45,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:45,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721704214] [2022-01-11 01:22:45,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:45,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:45,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:45,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:45,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:45,164 INFO L87 Difference]: Start difference. First operand has 2744 states, 2740 states have (on average 1.802919708029197) internal successors, (4940), 2743 states have internal predecessors, (4940), 0 states have call successors, (0), 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 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:45,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:45,396 INFO L93 Difference]: Finished difference Result 5910 states and 10522 transitions. [2022-01-11 01:22:45,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:45,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 01:22:45,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:45,461 INFO L225 Difference]: With dead ends: 5910 [2022-01-11 01:22:45,462 INFO L226 Difference]: Without dead ends: 3108 [2022-01-11 01:22:45,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:45,476 INFO L933 BasicCegarLoop]: 4851 mSDtfsCounter, 4777 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4777 SdHoareTripleChecker+Valid, 5554 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:45,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4777 Valid, 5554 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:45,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2022-01-11 01:22:45,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 3104. [2022-01-11 01:22:45,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.7497581425346662) internal successors, (5426), 3103 states have internal predecessors, (5426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:45,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5426 transitions. [2022-01-11 01:22:45,600 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5426 transitions. Word has length 88 [2022-01-11 01:22:45,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:45,601 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5426 transitions. [2022-01-11 01:22:45,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:45,602 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5426 transitions. [2022-01-11 01:22:45,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 01:22:45,610 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:45,610 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] [2022-01-11 01:22:45,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 01:22:45,611 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:45,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:45,614 INFO L85 PathProgramCache]: Analyzing trace with hash -156474668, now seen corresponding path program 1 times [2022-01-11 01:22:45,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:45,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157573334] [2022-01-11 01:22:45,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:45,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:45,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:45,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:45,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157573334] [2022-01-11 01:22:45,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157573334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:45,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:45,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:45,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062281950] [2022-01-11 01:22:45,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:45,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:45,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:45,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:45,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:45,707 INFO L87 Difference]: Start difference. First operand 3104 states and 5426 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:45,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:45,783 INFO L93 Difference]: Finished difference Result 4074 states and 6874 transitions. [2022-01-11 01:22:45,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:45,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 01:22:45,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:45,795 INFO L225 Difference]: With dead ends: 4074 [2022-01-11 01:22:45,795 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 01:22:45,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:45,800 INFO L933 BasicCegarLoop]: 4778 mSDtfsCounter, 4770 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4770 SdHoareTripleChecker+Valid, 4778 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:45,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4770 Valid, 4778 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:45,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 01:22:45,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 01:22:45,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.747178329571106) internal successors, (5418), 3103 states have internal predecessors, (5418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:45,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5418 transitions. [2022-01-11 01:22:45,858 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5418 transitions. Word has length 88 [2022-01-11 01:22:45,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:45,859 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5418 transitions. [2022-01-11 01:22:45,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:45,860 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5418 transitions. [2022-01-11 01:22:45,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 01:22:45,864 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:45,864 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] [2022-01-11 01:22:45,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 01:22:45,869 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:45,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:45,869 INFO L85 PathProgramCache]: Analyzing trace with hash 741597364, now seen corresponding path program 1 times [2022-01-11 01:22:45,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:45,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413135826] [2022-01-11 01:22:45,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:45,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:45,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:45,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:45,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413135826] [2022-01-11 01:22:45,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413135826] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:45,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:45,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:45,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780046818] [2022-01-11 01:22:45,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:45,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:45,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:45,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:45,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:45,984 INFO L87 Difference]: Start difference. First operand 3104 states and 5418 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:46,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:46,159 INFO L93 Difference]: Finished difference Result 4073 states and 6857 transitions. [2022-01-11 01:22:46,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:46,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 01:22:46,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:46,168 INFO L225 Difference]: With dead ends: 4073 [2022-01-11 01:22:46,168 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 01:22:46,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:46,175 INFO L933 BasicCegarLoop]: 4773 mSDtfsCounter, 4764 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4764 SdHoareTripleChecker+Valid, 4773 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:46,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4764 Valid, 4773 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:46,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 01:22:46,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 01:22:46,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.744598516607546) internal successors, (5410), 3103 states have internal predecessors, (5410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:46,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5410 transitions. [2022-01-11 01:22:46,230 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5410 transitions. Word has length 88 [2022-01-11 01:22:46,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:46,231 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5410 transitions. [2022-01-11 01:22:46,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:46,232 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5410 transitions. [2022-01-11 01:22:46,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 01:22:46,233 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:46,233 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] [2022-01-11 01:22:46,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 01:22:46,233 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:46,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:46,234 INFO L85 PathProgramCache]: Analyzing trace with hash -892000556, now seen corresponding path program 1 times [2022-01-11 01:22:46,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:46,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738025223] [2022-01-11 01:22:46,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:46,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:46,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:46,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:46,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738025223] [2022-01-11 01:22:46,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738025223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:46,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:46,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:46,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656506250] [2022-01-11 01:22:46,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:46,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:46,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:46,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:46,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:46,312 INFO L87 Difference]: Start difference. First operand 3104 states and 5410 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:46,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:46,369 INFO L93 Difference]: Finished difference Result 4072 states and 6840 transitions. [2022-01-11 01:22:46,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:46,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 01:22:46,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:46,378 INFO L225 Difference]: With dead ends: 4072 [2022-01-11 01:22:46,379 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 01:22:46,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:46,386 INFO L933 BasicCegarLoop]: 4768 mSDtfsCounter, 4758 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4758 SdHoareTripleChecker+Valid, 4768 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:46,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4758 Valid, 4768 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:46,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 01:22:46,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 01:22:46,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.7420187036439858) internal successors, (5402), 3103 states have internal predecessors, (5402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:46,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5402 transitions. [2022-01-11 01:22:46,444 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5402 transitions. Word has length 88 [2022-01-11 01:22:46,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:46,444 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5402 transitions. [2022-01-11 01:22:46,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:46,444 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5402 transitions. [2022-01-11 01:22:46,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 01:22:46,445 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:46,445 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] [2022-01-11 01:22:46,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 01:22:46,445 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:46,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:46,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1914528588, now seen corresponding path program 1 times [2022-01-11 01:22:46,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:46,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200157499] [2022-01-11 01:22:46,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:46,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:46,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:46,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:46,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200157499] [2022-01-11 01:22:46,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200157499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:46,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:46,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:46,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729088782] [2022-01-11 01:22:46,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:46,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:46,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:46,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:46,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:46,508 INFO L87 Difference]: Start difference. First operand 3104 states and 5402 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:46,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:46,568 INFO L93 Difference]: Finished difference Result 4071 states and 6823 transitions. [2022-01-11 01:22:46,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:46,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 01:22:46,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:46,577 INFO L225 Difference]: With dead ends: 4071 [2022-01-11 01:22:46,577 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 01:22:46,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:46,580 INFO L933 BasicCegarLoop]: 4763 mSDtfsCounter, 4752 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4752 SdHoareTripleChecker+Valid, 4763 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:46,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4752 Valid, 4763 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:46,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 01:22:46,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 01:22:46,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.7394388906804257) internal successors, (5394), 3103 states have internal predecessors, (5394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:46,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5394 transitions. [2022-01-11 01:22:46,643 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5394 transitions. Word has length 88 [2022-01-11 01:22:46,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:46,645 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5394 transitions. [2022-01-11 01:22:46,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:46,646 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5394 transitions. [2022-01-11 01:22:46,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 01:22:46,647 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:46,647 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] [2022-01-11 01:22:46,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 01:22:46,647 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:46,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:46,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1516169940, now seen corresponding path program 1 times [2022-01-11 01:22:46,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:46,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041698546] [2022-01-11 01:22:46,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:46,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:46,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:46,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:46,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041698546] [2022-01-11 01:22:46,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041698546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:46,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:46,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:46,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254434254] [2022-01-11 01:22:46,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:46,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:46,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:46,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:46,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:46,692 INFO L87 Difference]: Start difference. First operand 3104 states and 5394 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:46,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:46,753 INFO L93 Difference]: Finished difference Result 4070 states and 6806 transitions. [2022-01-11 01:22:46,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:46,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 01:22:46,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:46,762 INFO L225 Difference]: With dead ends: 4070 [2022-01-11 01:22:46,762 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 01:22:46,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:46,765 INFO L933 BasicCegarLoop]: 4758 mSDtfsCounter, 4746 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4746 SdHoareTripleChecker+Valid, 4758 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:46,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4746 Valid, 4758 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:46,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 01:22:46,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 01:22:46,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.7368590777168655) internal successors, (5386), 3103 states have internal predecessors, (5386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:46,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5386 transitions. [2022-01-11 01:22:46,837 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5386 transitions. Word has length 88 [2022-01-11 01:22:46,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:46,838 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5386 transitions. [2022-01-11 01:22:46,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:46,838 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5386 transitions. [2022-01-11 01:22:46,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 01:22:46,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:46,839 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] [2022-01-11 01:22:46,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 01:22:46,839 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:46,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:46,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1005561676, now seen corresponding path program 1 times [2022-01-11 01:22:46,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:46,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069239464] [2022-01-11 01:22:46,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:46,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:46,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:46,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:46,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069239464] [2022-01-11 01:22:46,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069239464] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:46,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:46,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:46,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939392432] [2022-01-11 01:22:46,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:46,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:46,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:46,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:46,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:46,871 INFO L87 Difference]: Start difference. First operand 3104 states and 5386 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:46,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:46,979 INFO L93 Difference]: Finished difference Result 4068 states and 6787 transitions. [2022-01-11 01:22:46,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:46,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 01:22:46,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:46,990 INFO L225 Difference]: With dead ends: 4068 [2022-01-11 01:22:46,990 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 01:22:46,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:46,994 INFO L933 BasicCegarLoop]: 4737 mSDtfsCounter, 4669 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4669 SdHoareTripleChecker+Valid, 4795 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:46,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4669 Valid, 4795 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:22:46,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 01:22:47,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 01:22:47,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.7297645920670752) internal successors, (5364), 3103 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:47,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5364 transitions. [2022-01-11 01:22:47,054 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5364 transitions. Word has length 88 [2022-01-11 01:22:47,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:47,055 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5364 transitions. [2022-01-11 01:22:47,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:47,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5364 transitions. [2022-01-11 01:22:47,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 01:22:47,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:47,056 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] [2022-01-11 01:22:47,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 01:22:47,057 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:47,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:47,057 INFO L85 PathProgramCache]: Analyzing trace with hash -580741388, now seen corresponding path program 1 times [2022-01-11 01:22:47,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:47,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095495199] [2022-01-11 01:22:47,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:47,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:47,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:47,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095495199] [2022-01-11 01:22:47,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095495199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:47,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:47,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:47,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122963121] [2022-01-11 01:22:47,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:47,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:47,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:47,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:47,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:47,091 INFO L87 Difference]: Start difference. First operand 3104 states and 5364 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:47,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:47,253 INFO L93 Difference]: Finished difference Result 4067 states and 6742 transitions. [2022-01-11 01:22:47,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:47,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 01:22:47,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:47,271 INFO L225 Difference]: With dead ends: 4067 [2022-01-11 01:22:47,271 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 01:22:47,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:47,274 INFO L933 BasicCegarLoop]: 4724 mSDtfsCounter, 4656 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4656 SdHoareTripleChecker+Valid, 4781 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:47,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4656 Valid, 4781 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:47,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 01:22:47,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 01:22:47,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.7226701064172847) internal successors, (5342), 3103 states have internal predecessors, (5342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5342 transitions. [2022-01-11 01:22:47,334 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5342 transitions. Word has length 88 [2022-01-11 01:22:47,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:47,334 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5342 transitions. [2022-01-11 01:22:47,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:47,334 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5342 transitions. [2022-01-11 01:22:47,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 01:22:47,335 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:47,335 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] [2022-01-11 01:22:47,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 01:22:47,335 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:47,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:47,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1199240468, now seen corresponding path program 1 times [2022-01-11 01:22:47,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:47,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136463145] [2022-01-11 01:22:47,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:47,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:47,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:47,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:47,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136463145] [2022-01-11 01:22:47,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136463145] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:47,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:47,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:47,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983947627] [2022-01-11 01:22:47,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:47,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:47,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:47,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:47,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:47,376 INFO L87 Difference]: Start difference. First operand 3104 states and 5342 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:47,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:47,455 INFO L93 Difference]: Finished difference Result 4066 states and 6697 transitions. [2022-01-11 01:22:47,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:47,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 01:22:47,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:47,461 INFO L225 Difference]: With dead ends: 4066 [2022-01-11 01:22:47,461 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 01:22:47,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:47,464 INFO L933 BasicCegarLoop]: 4711 mSDtfsCounter, 4643 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4643 SdHoareTripleChecker+Valid, 4767 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:47,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4643 Valid, 4767 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:47,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 01:22:47,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 01:22:47,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.7155756207674944) internal successors, (5320), 3103 states have internal predecessors, (5320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:47,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5320 transitions. [2022-01-11 01:22:47,531 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5320 transitions. Word has length 88 [2022-01-11 01:22:47,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:47,531 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5320 transitions. [2022-01-11 01:22:47,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:47,534 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5320 transitions. [2022-01-11 01:22:47,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 01:22:47,535 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:47,535 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] [2022-01-11 01:22:47,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 01:22:47,535 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:47,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:47,535 INFO L85 PathProgramCache]: Analyzing trace with hash 138930227, now seen corresponding path program 1 times [2022-01-11 01:22:47,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:47,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947972247] [2022-01-11 01:22:47,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:47,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:47,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:47,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:47,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947972247] [2022-01-11 01:22:47,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947972247] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:47,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:47,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:47,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159615578] [2022-01-11 01:22:47,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:47,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:47,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:47,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:47,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:47,567 INFO L87 Difference]: Start difference. First operand 3104 states and 5320 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:47,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:47,643 INFO L93 Difference]: Finished difference Result 4065 states and 6652 transitions. [2022-01-11 01:22:47,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:47,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 01:22:47,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:47,649 INFO L225 Difference]: With dead ends: 4065 [2022-01-11 01:22:47,649 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 01:22:47,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:47,651 INFO L933 BasicCegarLoop]: 4698 mSDtfsCounter, 4630 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4630 SdHoareTripleChecker+Valid, 4753 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:47,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4630 Valid, 4753 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:47,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 01:22:47,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 01:22:47,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.708481135117704) internal successors, (5298), 3103 states have internal predecessors, (5298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:47,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5298 transitions. [2022-01-11 01:22:47,717 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5298 transitions. Word has length 88 [2022-01-11 01:22:47,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:47,717 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5298 transitions. [2022-01-11 01:22:47,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:47,717 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5298 transitions. [2022-01-11 01:22:47,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 01:22:47,718 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:47,718 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] [2022-01-11 01:22:47,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 01:22:47,718 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:47,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:47,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1321696978, now seen corresponding path program 1 times [2022-01-11 01:22:47,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:47,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758207244] [2022-01-11 01:22:47,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:47,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:47,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:47,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:47,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758207244] [2022-01-11 01:22:47,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758207244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:47,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:47,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:47,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844914699] [2022-01-11 01:22:47,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:47,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:47,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:47,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:47,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:47,748 INFO L87 Difference]: Start difference. First operand 3104 states and 5298 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:47,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:47,829 INFO L93 Difference]: Finished difference Result 4064 states and 6607 transitions. [2022-01-11 01:22:47,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:47,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 01:22:47,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:47,835 INFO L225 Difference]: With dead ends: 4064 [2022-01-11 01:22:47,835 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 01:22:47,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:47,837 INFO L933 BasicCegarLoop]: 4685 mSDtfsCounter, 4617 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4617 SdHoareTripleChecker+Valid, 4739 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:47,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4617 Valid, 4739 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:47,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 01:22:47,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 01:22:47,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.7013866494679135) internal successors, (5276), 3103 states have internal predecessors, (5276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:47,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5276 transitions. [2022-01-11 01:22:47,898 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5276 transitions. Word has length 88 [2022-01-11 01:22:47,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:47,898 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5276 transitions. [2022-01-11 01:22:47,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:47,898 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5276 transitions. [2022-01-11 01:22:47,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 01:22:47,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:47,899 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] [2022-01-11 01:22:47,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 01:22:47,899 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:47,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:47,900 INFO L85 PathProgramCache]: Analyzing trace with hash 717173394, now seen corresponding path program 1 times [2022-01-11 01:22:47,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:47,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169082776] [2022-01-11 01:22:47,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:47,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:47,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:47,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:47,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169082776] [2022-01-11 01:22:47,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169082776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:47,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:47,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:47,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047296281] [2022-01-11 01:22:47,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:47,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:47,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:47,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:47,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:47,927 INFO L87 Difference]: Start difference. First operand 3104 states and 5276 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:48,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:48,037 INFO L93 Difference]: Finished difference Result 4930 states and 7715 transitions. [2022-01-11 01:22:48,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:48,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 01:22:48,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:48,043 INFO L225 Difference]: With dead ends: 4930 [2022-01-11 01:22:48,043 INFO L226 Difference]: Without dead ends: 3972 [2022-01-11 01:22:48,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:48,046 INFO L933 BasicCegarLoop]: 4685 mSDtfsCounter, 4627 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4627 SdHoareTripleChecker+Valid, 5304 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:48,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4627 Valid, 5304 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:48,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3972 states. [2022-01-11 01:22:48,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3972 to 3890. [2022-01-11 01:22:48,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3890 states, 3887 states have (on average 1.622330846411114) internal successors, (6306), 3889 states have internal predecessors, (6306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:48,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3890 states to 3890 states and 6306 transitions. [2022-01-11 01:22:48,212 INFO L78 Accepts]: Start accepts. Automaton has 3890 states and 6306 transitions. Word has length 88 [2022-01-11 01:22:48,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:48,213 INFO L470 AbstractCegarLoop]: Abstraction has 3890 states and 6306 transitions. [2022-01-11 01:22:48,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:48,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3890 states and 6306 transitions. [2022-01-11 01:22:48,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-11 01:22:48,215 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:48,215 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:48,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 01:22:48,215 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:48,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:48,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1891710493, now seen corresponding path program 1 times [2022-01-11 01:22:48,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:48,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211152421] [2022-01-11 01:22:48,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:48,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:48,275 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 01:22:48,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:48,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211152421] [2022-01-11 01:22:48,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211152421] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:48,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:48,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:22:48,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125086501] [2022-01-11 01:22:48,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:48,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:22:48,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:48,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:22:48,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:22:48,277 INFO L87 Difference]: Start difference. First operand 3890 states and 6306 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:48,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:48,528 INFO L93 Difference]: Finished difference Result 6181 states and 9392 transitions. [2022-01-11 01:22:48,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:22:48,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 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 142 [2022-01-11 01:22:48,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:48,536 INFO L225 Difference]: With dead ends: 6181 [2022-01-11 01:22:48,536 INFO L226 Difference]: Without dead ends: 4448 [2022-01-11 01:22:48,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 01:22:48,541 INFO L933 BasicCegarLoop]: 4796 mSDtfsCounter, 1922 mSDsluCounter, 13102 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 17898 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:48,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1922 Valid, 17898 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:22:48,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4448 states. [2022-01-11 01:22:48,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4448 to 3896. [2022-01-11 01:22:48,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3893 states have (on average 1.6144361674800924) internal successors, (6285), 3895 states have internal predecessors, (6285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:48,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 6285 transitions. [2022-01-11 01:22:48,689 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 6285 transitions. Word has length 142 [2022-01-11 01:22:48,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:48,690 INFO L470 AbstractCegarLoop]: Abstraction has 3896 states and 6285 transitions. [2022-01-11 01:22:48,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:48,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 6285 transitions. [2022-01-11 01:22:48,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-11 01:22:48,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:48,693 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:48,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 01:22:48,694 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:48,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:48,694 INFO L85 PathProgramCache]: Analyzing trace with hash -815157084, now seen corresponding path program 1 times [2022-01-11 01:22:48,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:48,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503902044] [2022-01-11 01:22:48,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:48,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:48,755 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 01:22:48,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:48,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503902044] [2022-01-11 01:22:48,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503902044] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:48,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:48,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:48,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760716899] [2022-01-11 01:22:48,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:48,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:48,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:48,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:48,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:48,757 INFO L87 Difference]: Start difference. First operand 3896 states and 6285 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:48,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:48,904 INFO L93 Difference]: Finished difference Result 5653 states and 8587 transitions. [2022-01-11 01:22:48,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:48,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 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 142 [2022-01-11 01:22:48,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:48,910 INFO L225 Difference]: With dead ends: 5653 [2022-01-11 01:22:48,910 INFO L226 Difference]: Without dead ends: 3896 [2022-01-11 01:22:48,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:48,914 INFO L933 BasicCegarLoop]: 4663 mSDtfsCounter, 4552 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4552 SdHoareTripleChecker+Valid, 4715 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:48,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4552 Valid, 4715 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:48,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3896 states. [2022-01-11 01:22:49,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3896 to 3896. [2022-01-11 01:22:49,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3893 states have (on average 1.6075006421782687) internal successors, (6258), 3895 states have internal predecessors, (6258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:49,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 6258 transitions. [2022-01-11 01:22:49,049 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 6258 transitions. Word has length 142 [2022-01-11 01:22:49,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:49,050 INFO L470 AbstractCegarLoop]: Abstraction has 3896 states and 6258 transitions. [2022-01-11 01:22:49,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:49,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 6258 transitions. [2022-01-11 01:22:49,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-11 01:22:49,052 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:49,052 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:49,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 01:22:49,052 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:49,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:49,053 INFO L85 PathProgramCache]: Analyzing trace with hash 51895141, now seen corresponding path program 1 times [2022-01-11 01:22:49,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:49,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355435732] [2022-01-11 01:22:49,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:49,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:49,103 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:49,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:49,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355435732] [2022-01-11 01:22:49,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355435732] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:49,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:49,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:22:49,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312649809] [2022-01-11 01:22:49,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:49,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:49,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:49,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:49,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:49,105 INFO L87 Difference]: Start difference. First operand 3896 states and 6258 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:49,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:49,380 INFO L93 Difference]: Finished difference Result 7264 states and 10638 transitions. [2022-01-11 01:22:49,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:49,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2022-01-11 01:22:49,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:49,389 INFO L225 Difference]: With dead ends: 7264 [2022-01-11 01:22:49,389 INFO L226 Difference]: Without dead ends: 5520 [2022-01-11 01:22:49,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:49,394 INFO L933 BasicCegarLoop]: 4662 mSDtfsCounter, 4578 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4578 SdHoareTripleChecker+Valid, 5264 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:49,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4578 Valid, 5264 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:49,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5520 states. [2022-01-11 01:22:49,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5520 to 5372. [2022-01-11 01:22:49,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5372 states, 5369 states have (on average 1.5209536226485378) internal successors, (8166), 5371 states have internal predecessors, (8166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:49,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 8166 transitions. [2022-01-11 01:22:49,559 INFO L78 Accepts]: Start accepts. Automaton has 5372 states and 8166 transitions. Word has length 142 [2022-01-11 01:22:49,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:49,559 INFO L470 AbstractCegarLoop]: Abstraction has 5372 states and 8166 transitions. [2022-01-11 01:22:49,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:49,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5372 states and 8166 transitions. [2022-01-11 01:22:49,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-11 01:22:49,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:49,561 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:49,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 01:22:49,562 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:49,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:49,562 INFO L85 PathProgramCache]: Analyzing trace with hash 282557349, now seen corresponding path program 1 times [2022-01-11 01:22:49,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:49,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639132902] [2022-01-11 01:22:49,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:49,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:49,610 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:49,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:49,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639132902] [2022-01-11 01:22:49,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639132902] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:49,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:49,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:22:49,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476969183] [2022-01-11 01:22:49,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:49,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:49,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:49,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:49,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:49,613 INFO L87 Difference]: Start difference. First operand 5372 states and 8166 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:49,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:49,892 INFO L93 Difference]: Finished difference Result 11485 states and 16014 transitions. [2022-01-11 01:22:49,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:49,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2022-01-11 01:22:49,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:49,906 INFO L225 Difference]: With dead ends: 11485 [2022-01-11 01:22:49,907 INFO L226 Difference]: Without dead ends: 8311 [2022-01-11 01:22:49,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:49,913 INFO L933 BasicCegarLoop]: 4968 mSDtfsCounter, 4459 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4459 SdHoareTripleChecker+Valid, 5663 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:49,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4459 Valid, 5663 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:49,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8311 states. [2022-01-11 01:22:50,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8311 to 8307. [2022-01-11 01:22:50,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8307 states, 8304 states have (on average 1.428709055876686) internal successors, (11864), 8306 states have internal predecessors, (11864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:50,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8307 states to 8307 states and 11864 transitions. [2022-01-11 01:22:50,313 INFO L78 Accepts]: Start accepts. Automaton has 8307 states and 11864 transitions. Word has length 142 [2022-01-11 01:22:50,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:50,314 INFO L470 AbstractCegarLoop]: Abstraction has 8307 states and 11864 transitions. [2022-01-11 01:22:50,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:50,314 INFO L276 IsEmpty]: Start isEmpty. Operand 8307 states and 11864 transitions. [2022-01-11 01:22:50,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-11 01:22:50,319 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:50,319 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:50,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 01:22:50,319 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:50,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:50,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1655981948, now seen corresponding path program 1 times [2022-01-11 01:22:50,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:50,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605873167] [2022-01-11 01:22:50,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:50,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:50,349 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 01:22:50,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:50,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605873167] [2022-01-11 01:22:50,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605873167] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:50,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:50,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:22:50,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214546883] [2022-01-11 01:22:50,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:50,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:50,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:50,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:50,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:50,351 INFO L87 Difference]: Start difference. First operand 8307 states and 11864 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:50,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:50,701 INFO L93 Difference]: Finished difference Result 14345 states and 19594 transitions. [2022-01-11 01:22:50,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:50,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 142 [2022-01-11 01:22:50,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:50,714 INFO L225 Difference]: With dead ends: 14345 [2022-01-11 01:22:50,715 INFO L226 Difference]: Without dead ends: 8236 [2022-01-11 01:22:50,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:50,725 INFO L933 BasicCegarLoop]: 4671 mSDtfsCounter, 709 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 8629 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:50,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [709 Valid, 8629 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:50,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8236 states. [2022-01-11 01:22:51,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8236 to 8236. [2022-01-11 01:22:51,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8236 states, 8233 states have (on average 1.4307056965869063) internal successors, (11779), 8235 states have internal predecessors, (11779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:51,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8236 states to 8236 states and 11779 transitions. [2022-01-11 01:22:51,079 INFO L78 Accepts]: Start accepts. Automaton has 8236 states and 11779 transitions. Word has length 142 [2022-01-11 01:22:51,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:51,080 INFO L470 AbstractCegarLoop]: Abstraction has 8236 states and 11779 transitions. [2022-01-11 01:22:51,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:51,080 INFO L276 IsEmpty]: Start isEmpty. Operand 8236 states and 11779 transitions. [2022-01-11 01:22:51,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-11 01:22:51,083 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:51,083 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:51,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 01:22:51,084 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:51,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:51,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1765629220, now seen corresponding path program 1 times [2022-01-11 01:22:51,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:51,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104862208] [2022-01-11 01:22:51,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:51,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:51,136 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:51,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:51,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104862208] [2022-01-11 01:22:51,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104862208] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:51,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:51,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:22:51,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071188445] [2022-01-11 01:22:51,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:51,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:51,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:51,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:51,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:51,139 INFO L87 Difference]: Start difference. First operand 8236 states and 11779 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:51,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:51,667 INFO L93 Difference]: Finished difference Result 19926 states and 26681 transitions. [2022-01-11 01:22:51,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:51,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-11 01:22:51,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:51,690 INFO L225 Difference]: With dead ends: 19926 [2022-01-11 01:22:51,690 INFO L226 Difference]: Without dead ends: 13888 [2022-01-11 01:22:51,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:51,702 INFO L933 BasicCegarLoop]: 4840 mSDtfsCounter, 4582 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4582 SdHoareTripleChecker+Valid, 5525 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:51,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4582 Valid, 5525 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:51,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13888 states. [2022-01-11 01:22:52,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13888 to 13484. [2022-01-11 01:22:52,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13484 states, 13481 states have (on average 1.364661375268897) internal successors, (18397), 13483 states have internal predecessors, (18397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:52,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13484 states to 13484 states and 18397 transitions. [2022-01-11 01:22:52,187 INFO L78 Accepts]: Start accepts. Automaton has 13484 states and 18397 transitions. Word has length 143 [2022-01-11 01:22:52,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:52,187 INFO L470 AbstractCegarLoop]: Abstraction has 13484 states and 18397 transitions. [2022-01-11 01:22:52,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:52,188 INFO L276 IsEmpty]: Start isEmpty. Operand 13484 states and 18397 transitions. [2022-01-11 01:22:52,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-11 01:22:52,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:52,193 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:52,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 01:22:52,194 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:52,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:52,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1119024441, now seen corresponding path program 1 times [2022-01-11 01:22:52,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:52,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147974674] [2022-01-11 01:22:52,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:52,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:52,217 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 01:22:52,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:52,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147974674] [2022-01-11 01:22:52,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147974674] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:52,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:52,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:22:52,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014490665] [2022-01-11 01:22:52,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:52,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:52,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:52,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:52,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:52,219 INFO L87 Difference]: Start difference. First operand 13484 states and 18397 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:52,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:52,698 INFO L93 Difference]: Finished difference Result 24735 states and 32704 transitions. [2022-01-11 01:22:52,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:52,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 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 143 [2022-01-11 01:22:52,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:52,723 INFO L225 Difference]: With dead ends: 24735 [2022-01-11 01:22:52,723 INFO L226 Difference]: Without dead ends: 13414 [2022-01-11 01:22:52,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:52,742 INFO L933 BasicCegarLoop]: 4670 mSDtfsCounter, 707 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 8628 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:52,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [707 Valid, 8628 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:52,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13414 states. [2022-01-11 01:22:53,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13414 to 13414. [2022-01-11 01:22:53,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13414 states, 13411 states have (on average 1.3655954067556484) internal successors, (18314), 13413 states have internal predecessors, (18314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:53,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13414 states to 13414 states and 18314 transitions. [2022-01-11 01:22:53,344 INFO L78 Accepts]: Start accepts. Automaton has 13414 states and 18314 transitions. Word has length 143 [2022-01-11 01:22:53,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:53,344 INFO L470 AbstractCegarLoop]: Abstraction has 13414 states and 18314 transitions. [2022-01-11 01:22:53,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:53,344 INFO L276 IsEmpty]: Start isEmpty. Operand 13414 states and 18314 transitions. [2022-01-11 01:22:53,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-11 01:22:53,349 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:53,349 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:53,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 01:22:53,349 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:53,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:53,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1474324216, now seen corresponding path program 1 times [2022-01-11 01:22:53,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:53,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949347526] [2022-01-11 01:22:53,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:53,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:53,384 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:53,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:53,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949347526] [2022-01-11 01:22:53,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949347526] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:53,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:53,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:22:53,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924604671] [2022-01-11 01:22:53,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:53,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:53,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:53,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:53,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:53,386 INFO L87 Difference]: Start difference. First operand 13414 states and 18314 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:54,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:54,166 INFO L93 Difference]: Finished difference Result 34875 states and 45550 transitions. [2022-01-11 01:22:54,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:54,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2022-01-11 01:22:54,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:54,207 INFO L225 Difference]: With dead ends: 34875 [2022-01-11 01:22:54,207 INFO L226 Difference]: Without dead ends: 23659 [2022-01-11 01:22:54,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:54,227 INFO L933 BasicCegarLoop]: 4832 mSDtfsCounter, 4582 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4582 SdHoareTripleChecker+Valid, 5515 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:54,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4582 Valid, 5515 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:54,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23659 states. [2022-01-11 01:22:55,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23659 to 23079. [2022-01-11 01:22:55,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23079 states, 23076 states have (on average 1.3212861847807245) internal successors, (30490), 23078 states have internal predecessors, (30490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:55,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23079 states to 23079 states and 30490 transitions. [2022-01-11 01:22:55,152 INFO L78 Accepts]: Start accepts. Automaton has 23079 states and 30490 transitions. Word has length 144 [2022-01-11 01:22:55,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:55,152 INFO L470 AbstractCegarLoop]: Abstraction has 23079 states and 30490 transitions. [2022-01-11 01:22:55,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:55,153 INFO L276 IsEmpty]: Start isEmpty. Operand 23079 states and 30490 transitions. [2022-01-11 01:22:55,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-11 01:22:55,161 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:55,161 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:55,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 01:22:55,162 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:55,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:55,162 INFO L85 PathProgramCache]: Analyzing trace with hash 2061801369, now seen corresponding path program 1 times [2022-01-11 01:22:55,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:55,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590339190] [2022-01-11 01:22:55,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:55,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:55,187 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 01:22:55,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:55,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590339190] [2022-01-11 01:22:55,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590339190] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:55,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:55,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:22:55,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322743374] [2022-01-11 01:22:55,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:55,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:55,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:55,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:55,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:55,189 INFO L87 Difference]: Start difference. First operand 23079 states and 30490 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:56,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:56,081 INFO L93 Difference]: Finished difference Result 43919 states and 56884 transitions. [2022-01-11 01:22:56,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:56,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2022-01-11 01:22:56,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:56,120 INFO L225 Difference]: With dead ends: 43919 [2022-01-11 01:22:56,120 INFO L226 Difference]: Without dead ends: 23010 [2022-01-11 01:22:56,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:56,141 INFO L933 BasicCegarLoop]: 4669 mSDtfsCounter, 705 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 8627 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:56,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [705 Valid, 8627 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:56,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23010 states. [2022-01-11 01:22:57,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23010 to 23010. [2022-01-11 01:22:57,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23010 states, 23007 states have (on average 1.3217281696874865) internal successors, (30409), 23009 states have internal predecessors, (30409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:57,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23010 states to 23010 states and 30409 transitions. [2022-01-11 01:22:57,167 INFO L78 Accepts]: Start accepts. Automaton has 23010 states and 30409 transitions. Word has length 144 [2022-01-11 01:22:57,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:57,167 INFO L470 AbstractCegarLoop]: Abstraction has 23010 states and 30409 transitions. [2022-01-11 01:22:57,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:57,167 INFO L276 IsEmpty]: Start isEmpty. Operand 23010 states and 30409 transitions. [2022-01-11 01:22:57,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-11 01:22:57,176 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:57,176 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:57,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 01:22:57,176 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:22:57,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:57,177 INFO L85 PathProgramCache]: Analyzing trace with hash -464981875, now seen corresponding path program 1 times [2022-01-11 01:22:57,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:57,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664195672] [2022-01-11 01:22:57,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:57,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:57,218 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:57,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:57,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664195672] [2022-01-11 01:22:57,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664195672] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:57,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:57,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:22:57,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184417614] [2022-01-11 01:22:57,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:57,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:57,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:57,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:57,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:57,220 INFO L87 Difference]: Start difference. First operand 23010 states and 30409 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:58,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:58,918 INFO L93 Difference]: Finished difference Result 62246 states and 80027 transitions. [2022-01-11 01:22:58,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:58,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2022-01-11 01:22:58,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:58,988 INFO L225 Difference]: With dead ends: 62246 [2022-01-11 01:22:58,988 INFO L226 Difference]: Without dead ends: 41434 [2022-01-11 01:22:59,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:59,010 INFO L933 BasicCegarLoop]: 4806 mSDtfsCounter, 4520 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4520 SdHoareTripleChecker+Valid, 5487 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:59,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4520 Valid, 5487 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:59,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41434 states. [2022-01-11 01:23:00,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41434 to 40726. [2022-01-11 01:23:00,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40726 states, 40723 states have (on average 1.2935933010829261) internal successors, (52679), 40725 states have internal predecessors, (52679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:00,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40726 states to 40726 states and 52679 transitions. [2022-01-11 01:23:00,767 INFO L78 Accepts]: Start accepts. Automaton has 40726 states and 52679 transitions. Word has length 145 [2022-01-11 01:23:00,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:00,767 INFO L470 AbstractCegarLoop]: Abstraction has 40726 states and 52679 transitions. [2022-01-11 01:23:00,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:00,768 INFO L276 IsEmpty]: Start isEmpty. Operand 40726 states and 52679 transitions. [2022-01-11 01:23:00,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-11 01:23:00,779 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:00,779 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:00,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 01:23:00,779 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:00,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:00,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1877195979, now seen corresponding path program 1 times [2022-01-11 01:23:00,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:00,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491334956] [2022-01-11 01:23:00,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:00,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:00,800 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 01:23:00,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:00,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491334956] [2022-01-11 01:23:00,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491334956] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:00,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:00,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:23:00,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820851575] [2022-01-11 01:23:00,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:00,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:00,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:00,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:00,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:00,802 INFO L87 Difference]: Start difference. First operand 40726 states and 52679 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:02,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:02,995 INFO L93 Difference]: Finished difference Result 79207 states and 101256 transitions. [2022-01-11 01:23:02,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:02,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 145 [2022-01-11 01:23:02,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:03,054 INFO L225 Difference]: With dead ends: 79207 [2022-01-11 01:23:03,054 INFO L226 Difference]: Without dead ends: 40658 [2022-01-11 01:23:03,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:03,086 INFO L933 BasicCegarLoop]: 4668 mSDtfsCounter, 703 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 8626 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:03,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [703 Valid, 8626 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:03,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40658 states. [2022-01-11 01:23:04,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40658 to 40658. [2022-01-11 01:23:04,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40658 states, 40655 states have (on average 1.2938137990407084) internal successors, (52600), 40657 states have internal predecessors, (52600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:05,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40658 states to 40658 states and 52600 transitions. [2022-01-11 01:23:05,023 INFO L78 Accepts]: Start accepts. Automaton has 40658 states and 52600 transitions. Word has length 145 [2022-01-11 01:23:05,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:05,023 INFO L470 AbstractCegarLoop]: Abstraction has 40658 states and 52600 transitions. [2022-01-11 01:23:05,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:05,024 INFO L276 IsEmpty]: Start isEmpty. Operand 40658 states and 52600 transitions. [2022-01-11 01:23:05,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-11 01:23:05,047 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:05,048 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:05,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 01:23:05,048 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:05,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:05,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1989266078, now seen corresponding path program 1 times [2022-01-11 01:23:05,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:05,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956490870] [2022-01-11 01:23:05,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:05,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:05,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:05,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956490870] [2022-01-11 01:23:05,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956490870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:05,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:05,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:23:05,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035251790] [2022-01-11 01:23:05,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:05,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:05,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:05,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:05,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:05,175 INFO L87 Difference]: Start difference. First operand 40658 states and 52600 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:08,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:08,500 INFO L93 Difference]: Finished difference Result 111885 states and 142296 transitions. [2022-01-11 01:23:08,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:08,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2022-01-11 01:23:08,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:08,604 INFO L225 Difference]: With dead ends: 111885 [2022-01-11 01:23:08,604 INFO L226 Difference]: Without dead ends: 73425 [2022-01-11 01:23:08,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:08,648 INFO L933 BasicCegarLoop]: 4761 mSDtfsCounter, 4581 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4581 SdHoareTripleChecker+Valid, 5440 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:08,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4581 Valid, 5440 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:08,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73425 states. [2022-01-11 01:23:12,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73425 to 72909. [2022-01-11 01:23:12,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72909 states, 72906 states have (on average 1.2766576139138068) internal successors, (93076), 72908 states have internal predecessors, (93076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:12,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72909 states to 72909 states and 93076 transitions. [2022-01-11 01:23:12,604 INFO L78 Accepts]: Start accepts. Automaton has 72909 states and 93076 transitions. Word has length 146 [2022-01-11 01:23:12,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:12,604 INFO L470 AbstractCegarLoop]: Abstraction has 72909 states and 93076 transitions. [2022-01-11 01:23:12,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:12,605 INFO L276 IsEmpty]: Start isEmpty. Operand 72909 states and 93076 transitions. [2022-01-11 01:23:12,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-11 01:23:12,627 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:12,627 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:12,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 01:23:12,627 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:12,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:12,628 INFO L85 PathProgramCache]: Analyzing trace with hash 144298115, now seen corresponding path program 1 times [2022-01-11 01:23:12,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:12,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942698040] [2022-01-11 01:23:12,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:12,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:12,667 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 01:23:12,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:12,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942698040] [2022-01-11 01:23:12,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942698040] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:12,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:12,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:23:12,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711410166] [2022-01-11 01:23:12,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:12,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:12,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:12,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:12,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:12,669 INFO L87 Difference]: Start difference. First operand 72909 states and 93076 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:16,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:16,368 INFO L93 Difference]: Finished difference Result 143567 states and 182044 transitions. [2022-01-11 01:23:16,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:16,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 146 [2022-01-11 01:23:16,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:16,504 INFO L225 Difference]: With dead ends: 143567 [2022-01-11 01:23:16,504 INFO L226 Difference]: Without dead ends: 72842 [2022-01-11 01:23:16,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:16,574 INFO L933 BasicCegarLoop]: 4667 mSDtfsCounter, 701 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 8625 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:16,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [701 Valid, 8625 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:16,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72842 states. [2022-01-11 01:23:20,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72842 to 72842. [2022-01-11 01:23:20,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72842 states, 72839 states have (on average 1.27677480470627) internal successors, (92999), 72841 states have internal predecessors, (92999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:20,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72842 states to 72842 states and 92999 transitions. [2022-01-11 01:23:20,430 INFO L78 Accepts]: Start accepts. Automaton has 72842 states and 92999 transitions. Word has length 146 [2022-01-11 01:23:20,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:20,430 INFO L470 AbstractCegarLoop]: Abstraction has 72842 states and 92999 transitions. [2022-01-11 01:23:20,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:20,439 INFO L276 IsEmpty]: Start isEmpty. Operand 72842 states and 92999 transitions. [2022-01-11 01:23:20,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-11 01:23:20,463 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:20,463 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:20,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 01:23:20,463 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:20,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:20,464 INFO L85 PathProgramCache]: Analyzing trace with hash -33986521, now seen corresponding path program 1 times [2022-01-11 01:23:20,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:20,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647632827] [2022-01-11 01:23:20,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:20,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:20,518 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:23:20,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:20,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647632827] [2022-01-11 01:23:20,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647632827] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:20,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:20,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:23:20,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337775299] [2022-01-11 01:23:20,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:20,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:20,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:20,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:20,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:20,521 INFO L87 Difference]: Start difference. First operand 72842 states and 92999 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:27,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:27,194 INFO L93 Difference]: Finished difference Result 206390 states and 260426 transitions. [2022-01-11 01:23:27,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:27,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2022-01-11 01:23:27,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:27,448 INFO L225 Difference]: With dead ends: 206390 [2022-01-11 01:23:27,448 INFO L226 Difference]: Without dead ends: 135746 [2022-01-11 01:23:27,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:27,531 INFO L933 BasicCegarLoop]: 5272 mSDtfsCounter, 601 mSDsluCounter, 4645 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 9917 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:27,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [601 Valid, 9917 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:27,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135746 states.