/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 13:47:14,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 13:47:14,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 13:47:14,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 13:47:14,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 13:47:14,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 13:47:14,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 13:47:14,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 13:47:14,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 13:47:14,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 13:47:14,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 13:47:14,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 13:47:14,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 13:47:14,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 13:47:14,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 13:47:14,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 13:47:14,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 13:47:14,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 13:47:14,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 13:47:14,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 13:47:14,381 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 13:47:14,401 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 13:47:14,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 13:47:14,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 13:47:14,401 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 13:47:14,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 13:47:14,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 13:47:14,402 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 13:47:14,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 13:47:14,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 13:47:14,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 13:47:14,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 13:47:14,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 13:47:14,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 13:47:14,403 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 13:47:14,403 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 13:47:14,403 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 13:47:14,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 13:47:14,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 13:47:14,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 13:47:14,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 13:47:14,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 13:47:14,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:47:14,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 13:47:14,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 13:47:14,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 13:47:14,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 13:47:14,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 13:47:14,407 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 13:47:14,407 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 13:47:14,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 13:47:14,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 13:47:14,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 13:47:14,408 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 13:47:14,408 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 13:47:14,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 13:47:14,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 13:47:14,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 13:47:14,633 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 13:47:14,634 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 13:47:14,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.14.cil.c [2022-01-10 13:47:14,693 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfe6e91f1/597ac669160f4b87b1e05bd8ec3be0da/FLAGaeaea5de3 [2022-01-10 13:47:15,413 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 13:47:15,414 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.14.cil.c [2022-01-10 13:47:15,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfe6e91f1/597ac669160f4b87b1e05bd8ec3be0da/FLAGaeaea5de3 [2022-01-10 13:47:15,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfe6e91f1/597ac669160f4b87b1e05bd8ec3be0da [2022-01-10 13:47:15,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 13:47:15,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 13:47:15,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 13:47:15,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 13:47:15,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 13:47:15,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:47:15" (1/1) ... [2022-01-10 13:47:15,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c059927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:47:15, skipping insertion in model container [2022-01-10 13:47:15,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:47:15" (1/1) ... [2022-01-10 13:47:15,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 13:47:15,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 13:47:17,265 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.14.cil.c[380593,380606] [2022-01-10 13:47:17,291 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.14.cil.c[383339,383352] [2022-01-10 13:47:17,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:47:17,573 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 13:47:18,188 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.14.cil.c[380593,380606] [2022-01-10 13:47:18,194 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.14.cil.c[383339,383352] [2022-01-10 13:47:18,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:47:18,281 INFO L208 MainTranslator]: Completed translation [2022-01-10 13:47:18,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:47:18 WrapperNode [2022-01-10 13:47:18,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 13:47:18,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 13:47:18,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 13:47:18,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 13:47:18,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:47:18" (1/1) ... [2022-01-10 13:47:18,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:47:18" (1/1) ... [2022-01-10 13:47:18,760 INFO L137 Inliner]: procedures = 69, calls = 78, calls flagged for inlining = 73, calls inlined = 280, statements flattened = 16479 [2022-01-10 13:47:18,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 13:47:18,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 13:47:18,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 13:47:18,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 13:47:18,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:47:18" (1/1) ... [2022-01-10 13:47:18,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:47:18" (1/1) ... [2022-01-10 13:47:18,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:47:18" (1/1) ... [2022-01-10 13:47:18,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:47:18" (1/1) ... [2022-01-10 13:47:18,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:47:18" (1/1) ... [2022-01-10 13:47:19,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:47:18" (1/1) ... [2022-01-10 13:47:19,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:47:18" (1/1) ... [2022-01-10 13:47:19,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 13:47:19,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 13:47:19,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 13:47:19,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 13:47:19,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:47:18" (1/1) ... [2022-01-10 13:47:19,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:47:19,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 13:47:19,163 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 13:47:19,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 13:47:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 13:47:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 13:47:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 13:47:19,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 13:47:19,305 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 13:47:19,306 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 13:47:27,066 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 13:47:27,091 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 13:47:27,091 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-01-10 13:47:27,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:47:27 BoogieIcfgContainer [2022-01-10 13:47:27,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 13:47:27,097 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 13:47:27,097 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 13:47:27,097 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 13:47:27,099 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:47:27" (1/1) ... [2022-01-10 13:47:28,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:47:28 BasicIcfg [2022-01-10 13:47:28,682 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 13:47:28,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 13:47:28,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 13:47:28,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 13:47:28,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:47:15" (1/4) ... [2022-01-10 13:47:28,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44eb48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:47:28, skipping insertion in model container [2022-01-10 13:47:28,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:47:18" (2/4) ... [2022-01-10 13:47:28,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44eb48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:47:28, skipping insertion in model container [2022-01-10 13:47:28,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:47:27" (3/4) ... [2022-01-10 13:47:28,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44eb48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:47:28, skipping insertion in model container [2022-01-10 13:47:28,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:47:28" (4/4) ... [2022-01-10 13:47:28,688 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.14.cil.cTransformedIcfg [2022-01-10 13:47:28,694 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 13:47:28,694 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 13:47:28,744 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 13:47:28,750 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 13:47:28,750 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 13:47:28,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 3981 states, 3977 states have (on average 1.704048277596178) internal successors, (6777), 3980 states have internal predecessors, (6777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:28,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:28,813 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:28,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:28,814 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:28,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:28,819 INFO L85 PathProgramCache]: Analyzing trace with hash 660541864, now seen corresponding path program 1 times [2022-01-10 13:47:28,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:28,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440058315] [2022-01-10 13:47:28,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:28,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:29,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:29,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:29,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440058315] [2022-01-10 13:47:29,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440058315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:29,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:29,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:29,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851678534] [2022-01-10 13:47:29,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:29,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:29,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:29,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:29,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:29,207 INFO L87 Difference]: Start difference. First operand has 3981 states, 3977 states have (on average 1.704048277596178) internal successors, (6777), 3980 states have internal predecessors, (6777), 0 states have call successors, (0), 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 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:29,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:29,509 INFO L93 Difference]: Finished difference Result 9481 states and 15809 transitions. [2022-01-10 13:47:29,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:29,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:29,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:29,541 INFO L225 Difference]: With dead ends: 9481 [2022-01-10 13:47:29,542 INFO L226 Difference]: Without dead ends: 5449 [2022-01-10 13:47:29,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:29,564 INFO L933 BasicCegarLoop]: 6674 mSDtfsCounter, 6523 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6523 SdHoareTripleChecker+Valid, 9060 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:29,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6523 Valid, 9060 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:29,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-10 13:47:29,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5445. [2022-01-10 13:47:29,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6284454244762956) internal successors, (8862), 5444 states have internal predecessors, (8862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:29,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8862 transitions. [2022-01-10 13:47:29,741 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8862 transitions. Word has length 165 [2022-01-10 13:47:29,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:29,743 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8862 transitions. [2022-01-10 13:47:29,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:29,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8862 transitions. [2022-01-10 13:47:29,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:29,752 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:29,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:29,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 13:47:29,753 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:29,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:29,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1936707896, now seen corresponding path program 1 times [2022-01-10 13:47:29,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:29,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051925459] [2022-01-10 13:47:29,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:29,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:29,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:29,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:29,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051925459] [2022-01-10 13:47:29,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051925459] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:29,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:29,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:29,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580464992] [2022-01-10 13:47:29,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:29,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:29,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:29,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:29,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:29,857 INFO L87 Difference]: Start difference. First operand 5445 states and 8862 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:29,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:29,970 INFO L93 Difference]: Finished difference Result 8749 states and 13732 transitions. [2022-01-10 13:47:29,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:29,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:29,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:29,987 INFO L225 Difference]: With dead ends: 8749 [2022-01-10 13:47:29,988 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:29,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:29,997 INFO L933 BasicCegarLoop]: 6601 mSDtfsCounter, 6586 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6586 SdHoareTripleChecker+Valid, 6601 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:29,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6586 Valid, 6601 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:30,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:30,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:30,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6269753766997428) internal successors, (8854), 5444 states have internal predecessors, (8854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:30,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8854 transitions. [2022-01-10 13:47:30,107 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8854 transitions. Word has length 165 [2022-01-10 13:47:30,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:30,108 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8854 transitions. [2022-01-10 13:47:30,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8854 transitions. [2022-01-10 13:47:30,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:30,113 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:30,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:30,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 13:47:30,117 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:30,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:30,118 INFO L85 PathProgramCache]: Analyzing trace with hash 473361832, now seen corresponding path program 1 times [2022-01-10 13:47:30,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:30,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177540782] [2022-01-10 13:47:30,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:30,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:30,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:30,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:30,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177540782] [2022-01-10 13:47:30,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177540782] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:30,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:30,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:30,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472141551] [2022-01-10 13:47:30,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:30,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:30,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:30,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:30,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:30,194 INFO L87 Difference]: Start difference. First operand 5445 states and 8854 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:30,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:30,297 INFO L93 Difference]: Finished difference Result 8748 states and 13715 transitions. [2022-01-10 13:47:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:30,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:30,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:30,314 INFO L225 Difference]: With dead ends: 8748 [2022-01-10 13:47:30,315 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:30,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:30,327 INFO L933 BasicCegarLoop]: 6596 mSDtfsCounter, 6580 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6580 SdHoareTripleChecker+Valid, 6596 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:30,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6580 Valid, 6596 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:30,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:30,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:30,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.62550532892319) internal successors, (8846), 5444 states have internal predecessors, (8846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:30,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8846 transitions. [2022-01-10 13:47:30,449 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8846 transitions. Word has length 165 [2022-01-10 13:47:30,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:30,449 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8846 transitions. [2022-01-10 13:47:30,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:30,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8846 transitions. [2022-01-10 13:47:30,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:30,452 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:30,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:30,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 13:47:30,452 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:30,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:30,453 INFO L85 PathProgramCache]: Analyzing trace with hash -280177976, now seen corresponding path program 1 times [2022-01-10 13:47:30,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:30,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778444926] [2022-01-10 13:47:30,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:30,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:30,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:30,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:30,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778444926] [2022-01-10 13:47:30,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778444926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:30,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:30,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:30,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680642879] [2022-01-10 13:47:30,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:30,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:30,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:30,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:30,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:30,528 INFO L87 Difference]: Start difference. First operand 5445 states and 8846 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:30,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:30,627 INFO L93 Difference]: Finished difference Result 8746 states and 13696 transitions. [2022-01-10 13:47:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:30,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:30,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:30,644 INFO L225 Difference]: With dead ends: 8746 [2022-01-10 13:47:30,644 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:30,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:30,657 INFO L933 BasicCegarLoop]: 6591 mSDtfsCounter, 6573 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6573 SdHoareTripleChecker+Valid, 6591 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:30,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6573 Valid, 6591 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:30,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:30,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:30,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6240352811466372) internal successors, (8838), 5444 states have internal predecessors, (8838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:30,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8838 transitions. [2022-01-10 13:47:30,919 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8838 transitions. Word has length 165 [2022-01-10 13:47:30,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:30,920 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8838 transitions. [2022-01-10 13:47:30,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:30,920 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8838 transitions. [2022-01-10 13:47:30,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:30,921 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:30,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:30,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 13:47:30,922 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:30,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:30,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1926856680, now seen corresponding path program 1 times [2022-01-10 13:47:30,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:30,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953207487] [2022-01-10 13:47:30,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:30,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:30,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:30,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:30,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953207487] [2022-01-10 13:47:30,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953207487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:30,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:30,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:30,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916874311] [2022-01-10 13:47:30,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:30,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:30,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:30,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:30,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:30,994 INFO L87 Difference]: Start difference. First operand 5445 states and 8838 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:31,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:31,113 INFO L93 Difference]: Finished difference Result 8745 states and 13679 transitions. [2022-01-10 13:47:31,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:31,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:31,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:31,140 INFO L225 Difference]: With dead ends: 8745 [2022-01-10 13:47:31,140 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:31,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:31,147 INFO L933 BasicCegarLoop]: 6586 mSDtfsCounter, 6567 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6567 SdHoareTripleChecker+Valid, 6586 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:31,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6567 Valid, 6586 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:31,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:31,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:31,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6225652333700846) internal successors, (8830), 5444 states have internal predecessors, (8830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:31,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8830 transitions. [2022-01-10 13:47:31,284 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8830 transitions. Word has length 165 [2022-01-10 13:47:31,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:31,287 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8830 transitions. [2022-01-10 13:47:31,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:31,288 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8830 transitions. [2022-01-10 13:47:31,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:31,290 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:31,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:31,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 13:47:31,290 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:31,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:31,291 INFO L85 PathProgramCache]: Analyzing trace with hash -495800632, now seen corresponding path program 1 times [2022-01-10 13:47:31,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:31,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297836378] [2022-01-10 13:47:31,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:31,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:31,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:31,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:31,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297836378] [2022-01-10 13:47:31,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297836378] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:31,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:31,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:31,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773862635] [2022-01-10 13:47:31,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:31,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:31,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:31,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:31,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:31,348 INFO L87 Difference]: Start difference. First operand 5445 states and 8830 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:31,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:31,471 INFO L93 Difference]: Finished difference Result 8744 states and 13662 transitions. [2022-01-10 13:47:31,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:31,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:31,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:31,481 INFO L225 Difference]: With dead ends: 8744 [2022-01-10 13:47:31,482 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:31,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:31,488 INFO L933 BasicCegarLoop]: 6581 mSDtfsCounter, 6561 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6561 SdHoareTripleChecker+Valid, 6581 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:31,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6561 Valid, 6581 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:31,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:31,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:31,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6210951855935318) internal successors, (8822), 5444 states have internal predecessors, (8822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:31,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8822 transitions. [2022-01-10 13:47:31,632 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8822 transitions. Word has length 165 [2022-01-10 13:47:31,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:31,632 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8822 transitions. [2022-01-10 13:47:31,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:31,632 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8822 transitions. [2022-01-10 13:47:31,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:31,634 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:31,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:31,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 13:47:31,634 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:31,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:31,635 INFO L85 PathProgramCache]: Analyzing trace with hash -712498200, now seen corresponding path program 1 times [2022-01-10 13:47:31,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:31,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145589130] [2022-01-10 13:47:31,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:31,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:31,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:31,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:31,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145589130] [2022-01-10 13:47:31,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145589130] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:31,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:31,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:31,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551497780] [2022-01-10 13:47:31,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:31,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:31,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:31,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:31,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:31,683 INFO L87 Difference]: Start difference. First operand 5445 states and 8822 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:31,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:31,907 INFO L93 Difference]: Finished difference Result 8743 states and 13645 transitions. [2022-01-10 13:47:31,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:31,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:31,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:31,916 INFO L225 Difference]: With dead ends: 8743 [2022-01-10 13:47:31,916 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:31,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:31,922 INFO L933 BasicCegarLoop]: 6576 mSDtfsCounter, 6555 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6555 SdHoareTripleChecker+Valid, 6576 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:31,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6555 Valid, 6576 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:31,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:32,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:32,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.619625137816979) internal successors, (8814), 5444 states have internal predecessors, (8814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:32,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8814 transitions. [2022-01-10 13:47:32,022 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8814 transitions. Word has length 165 [2022-01-10 13:47:32,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:32,023 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8814 transitions. [2022-01-10 13:47:32,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:32,023 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8814 transitions. [2022-01-10 13:47:32,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:32,024 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:32,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:32,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 13:47:32,024 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:32,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:32,025 INFO L85 PathProgramCache]: Analyzing trace with hash -580941112, now seen corresponding path program 1 times [2022-01-10 13:47:32,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:32,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459701611] [2022-01-10 13:47:32,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:32,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:32,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:32,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:32,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459701611] [2022-01-10 13:47:32,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459701611] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:32,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:32,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:32,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548230942] [2022-01-10 13:47:32,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:32,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:32,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:32,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:32,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:32,062 INFO L87 Difference]: Start difference. First operand 5445 states and 8814 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:32,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:32,158 INFO L93 Difference]: Finished difference Result 8742 states and 13628 transitions. [2022-01-10 13:47:32,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:32,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:32,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:32,169 INFO L225 Difference]: With dead ends: 8742 [2022-01-10 13:47:32,169 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:32,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:32,175 INFO L933 BasicCegarLoop]: 6571 mSDtfsCounter, 6549 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6549 SdHoareTripleChecker+Valid, 6571 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:32,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6549 Valid, 6571 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:32,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:32,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:32,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6181550900404262) internal successors, (8806), 5444 states have internal predecessors, (8806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:32,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8806 transitions. [2022-01-10 13:47:32,285 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8806 transitions. Word has length 165 [2022-01-10 13:47:32,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:32,285 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8806 transitions. [2022-01-10 13:47:32,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:32,285 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8806 transitions. [2022-01-10 13:47:32,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:32,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:32,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:32,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 13:47:32,287 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:32,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:32,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1685075992, now seen corresponding path program 1 times [2022-01-10 13:47:32,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:32,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947299658] [2022-01-10 13:47:32,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:32,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:32,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:32,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:32,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947299658] [2022-01-10 13:47:32,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947299658] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:32,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:32,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:32,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865937930] [2022-01-10 13:47:32,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:32,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:32,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:32,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:32,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:32,326 INFO L87 Difference]: Start difference. First operand 5445 states and 8806 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:32,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:32,448 INFO L93 Difference]: Finished difference Result 8741 states and 13611 transitions. [2022-01-10 13:47:32,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:32,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:32,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:32,458 INFO L225 Difference]: With dead ends: 8741 [2022-01-10 13:47:32,458 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:32,463 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 [2022-01-10 13:47:32,465 INFO L933 BasicCegarLoop]: 6566 mSDtfsCounter, 6543 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6543 SdHoareTripleChecker+Valid, 6566 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:32,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6543 Valid, 6566 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:32,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:32,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:32,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6166850422638737) internal successors, (8798), 5444 states have internal predecessors, (8798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:32,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8798 transitions. [2022-01-10 13:47:32,607 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8798 transitions. Word has length 165 [2022-01-10 13:47:32,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:32,607 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8798 transitions. [2022-01-10 13:47:32,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:32,610 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8798 transitions. [2022-01-10 13:47:32,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:32,611 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:32,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:32,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 13:47:32,612 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:32,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:32,612 INFO L85 PathProgramCache]: Analyzing trace with hash 634611400, now seen corresponding path program 1 times [2022-01-10 13:47:32,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:32,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254305160] [2022-01-10 13:47:32,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:32,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:32,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:32,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:32,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254305160] [2022-01-10 13:47:32,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254305160] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:32,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:32,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:32,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422564333] [2022-01-10 13:47:32,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:32,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:32,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:32,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:32,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:32,659 INFO L87 Difference]: Start difference. First operand 5445 states and 8798 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:32,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:32,831 INFO L93 Difference]: Finished difference Result 8739 states and 13592 transitions. [2022-01-10 13:47:32,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:32,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:32,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:32,839 INFO L225 Difference]: With dead ends: 8739 [2022-01-10 13:47:32,839 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:32,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:32,842 INFO L933 BasicCegarLoop]: 6561 mSDtfsCounter, 6536 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6536 SdHoareTripleChecker+Valid, 6561 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:32,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6536 Valid, 6561 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:32,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:32,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:32,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6152149944873209) internal successors, (8790), 5444 states have internal predecessors, (8790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:32,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8790 transitions. [2022-01-10 13:47:32,952 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8790 transitions. Word has length 165 [2022-01-10 13:47:32,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:32,952 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8790 transitions. [2022-01-10 13:47:32,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:32,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8790 transitions. [2022-01-10 13:47:32,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:32,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:32,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:32,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 13:47:32,954 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:32,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:32,955 INFO L85 PathProgramCache]: Analyzing trace with hash -802079320, now seen corresponding path program 1 times [2022-01-10 13:47:32,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:32,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987738813] [2022-01-10 13:47:32,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:32,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:32,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:32,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:32,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987738813] [2022-01-10 13:47:32,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987738813] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:32,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:32,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:32,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094743142] [2022-01-10 13:47:32,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:32,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:32,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:32,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:32,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:32,999 INFO L87 Difference]: Start difference. First operand 5445 states and 8790 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:33,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:33,105 INFO L93 Difference]: Finished difference Result 8738 states and 13575 transitions. [2022-01-10 13:47:33,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:33,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:33,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:33,114 INFO L225 Difference]: With dead ends: 8738 [2022-01-10 13:47:33,115 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:33,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:33,120 INFO L933 BasicCegarLoop]: 6556 mSDtfsCounter, 6530 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6530 SdHoareTripleChecker+Valid, 6556 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:33,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6530 Valid, 6556 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:33,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:33,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:33,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.613744946710768) internal successors, (8782), 5444 states have internal predecessors, (8782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:33,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8782 transitions. [2022-01-10 13:47:33,226 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8782 transitions. Word has length 165 [2022-01-10 13:47:33,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:33,227 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8782 transitions. [2022-01-10 13:47:33,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:33,227 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8782 transitions. [2022-01-10 13:47:33,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:33,228 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:33,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:33,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 13:47:33,229 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:33,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:33,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1229785800, now seen corresponding path program 1 times [2022-01-10 13:47:33,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:33,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617366268] [2022-01-10 13:47:33,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:33,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:33,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:33,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:33,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617366268] [2022-01-10 13:47:33,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617366268] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:33,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:33,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:33,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574593392] [2022-01-10 13:47:33,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:33,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:33,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:33,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:33,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:33,265 INFO L87 Difference]: Start difference. First operand 5445 states and 8782 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:33,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:33,404 INFO L93 Difference]: Finished difference Result 8737 states and 13558 transitions. [2022-01-10 13:47:33,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:33,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:33,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:33,415 INFO L225 Difference]: With dead ends: 8737 [2022-01-10 13:47:33,415 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:33,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:33,420 INFO L933 BasicCegarLoop]: 6521 mSDtfsCounter, 6377 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6377 SdHoareTripleChecker+Valid, 6649 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:33,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6377 Valid, 6649 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:33,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:33,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:33,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6071297317162807) internal successors, (8746), 5444 states have internal predecessors, (8746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:33,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8746 transitions. [2022-01-10 13:47:33,535 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8746 transitions. Word has length 165 [2022-01-10 13:47:33,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:33,536 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8746 transitions. [2022-01-10 13:47:33,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:33,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8746 transitions. [2022-01-10 13:47:33,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:33,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:33,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:33,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 13:47:33,537 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:33,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:33,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1326779353, now seen corresponding path program 1 times [2022-01-10 13:47:33,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:33,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352604143] [2022-01-10 13:47:33,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:33,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:33,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:33,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:33,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352604143] [2022-01-10 13:47:33,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352604143] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:33,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:33,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:33,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205884224] [2022-01-10 13:47:33,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:33,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:33,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:33,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:33,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:33,581 INFO L87 Difference]: Start difference. First operand 5445 states and 8746 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:33,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:33,731 INFO L93 Difference]: Finished difference Result 8735 states and 13483 transitions. [2022-01-10 13:47:33,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:33,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:33,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:33,740 INFO L225 Difference]: With dead ends: 8735 [2022-01-10 13:47:33,740 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:33,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:33,747 INFO L933 BasicCegarLoop]: 6501 mSDtfsCounter, 6356 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6356 SdHoareTripleChecker+Valid, 6628 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:33,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6356 Valid, 6628 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:33,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:33,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:33,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6005145167217936) internal successors, (8710), 5444 states have internal predecessors, (8710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:33,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8710 transitions. [2022-01-10 13:47:33,898 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8710 transitions. Word has length 165 [2022-01-10 13:47:33,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:33,899 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8710 transitions. [2022-01-10 13:47:33,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:33,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8710 transitions. [2022-01-10 13:47:33,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:33,901 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:33,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:33,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 13:47:33,901 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:33,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:33,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1114924026, now seen corresponding path program 1 times [2022-01-10 13:47:33,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:33,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356967438] [2022-01-10 13:47:33,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:33,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:33,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:33,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:33,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356967438] [2022-01-10 13:47:33,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356967438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:33,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:33,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:33,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133727833] [2022-01-10 13:47:33,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:33,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:33,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:33,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:33,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:33,945 INFO L87 Difference]: Start difference. First operand 5445 states and 8710 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:34,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:34,110 INFO L93 Difference]: Finished difference Result 8734 states and 13410 transitions. [2022-01-10 13:47:34,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:34,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:34,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:34,121 INFO L225 Difference]: With dead ends: 8734 [2022-01-10 13:47:34,122 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:34,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:34,127 INFO L933 BasicCegarLoop]: 6481 mSDtfsCounter, 6336 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6336 SdHoareTripleChecker+Valid, 6607 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:34,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6336 Valid, 6607 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:34,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:34,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:34,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5938993017273062) internal successors, (8674), 5444 states have internal predecessors, (8674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:34,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8674 transitions. [2022-01-10 13:47:34,284 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8674 transitions. Word has length 165 [2022-01-10 13:47:34,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:34,284 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8674 transitions. [2022-01-10 13:47:34,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:34,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8674 transitions. [2022-01-10 13:47:34,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:34,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:34,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:34,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 13:47:34,286 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:34,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:34,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1610627739, now seen corresponding path program 1 times [2022-01-10 13:47:34,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:34,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119382127] [2022-01-10 13:47:34,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:34,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:34,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:34,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:34,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119382127] [2022-01-10 13:47:34,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119382127] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:34,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:34,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:34,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655684729] [2022-01-10 13:47:34,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:34,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:34,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:34,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:34,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:34,329 INFO L87 Difference]: Start difference. First operand 5445 states and 8674 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:34,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:34,528 INFO L93 Difference]: Finished difference Result 8733 states and 13337 transitions. [2022-01-10 13:47:34,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:34,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:34,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:34,538 INFO L225 Difference]: With dead ends: 8733 [2022-01-10 13:47:34,538 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:34,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:34,544 INFO L933 BasicCegarLoop]: 6461 mSDtfsCounter, 6316 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6316 SdHoareTripleChecker+Valid, 6586 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:34,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6316 Valid, 6586 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:34,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:34,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:34,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5872840867328188) internal successors, (8638), 5444 states have internal predecessors, (8638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:34,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8638 transitions. [2022-01-10 13:47:34,703 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8638 transitions. Word has length 165 [2022-01-10 13:47:34,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:34,703 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8638 transitions. [2022-01-10 13:47:34,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:34,703 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8638 transitions. [2022-01-10 13:47:34,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:34,704 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:34,704 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:34,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 13:47:34,704 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:34,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:34,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1200024516, now seen corresponding path program 1 times [2022-01-10 13:47:34,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:34,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208491416] [2022-01-10 13:47:34,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:34,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:34,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:34,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208491416] [2022-01-10 13:47:34,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208491416] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:34,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:34,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:34,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432557128] [2022-01-10 13:47:34,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:34,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:34,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:34,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:34,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:34,741 INFO L87 Difference]: Start difference. First operand 5445 states and 8638 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:34,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:34,879 INFO L93 Difference]: Finished difference Result 8732 states and 13264 transitions. [2022-01-10 13:47:34,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:34,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:34,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:34,887 INFO L225 Difference]: With dead ends: 8732 [2022-01-10 13:47:34,887 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:34,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:34,891 INFO L933 BasicCegarLoop]: 6441 mSDtfsCounter, 6296 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6296 SdHoareTripleChecker+Valid, 6565 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:34,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6296 Valid, 6565 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:34,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:35,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:35,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5806688717383315) internal successors, (8602), 5444 states have internal predecessors, (8602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:35,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8602 transitions. [2022-01-10 13:47:35,017 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8602 transitions. Word has length 165 [2022-01-10 13:47:35,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:35,017 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8602 transitions. [2022-01-10 13:47:35,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:35,017 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8602 transitions. [2022-01-10 13:47:35,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:35,018 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:35,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:35,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 13:47:35,019 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:35,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:35,019 INFO L85 PathProgramCache]: Analyzing trace with hash -2142564124, now seen corresponding path program 1 times [2022-01-10 13:47:35,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:35,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934724133] [2022-01-10 13:47:35,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:35,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:35,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:35,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:35,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934724133] [2022-01-10 13:47:35,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934724133] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:35,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:35,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:35,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411343109] [2022-01-10 13:47:35,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:35,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:35,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:35,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:35,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:35,058 INFO L87 Difference]: Start difference. First operand 5445 states and 8602 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:35,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:35,211 INFO L93 Difference]: Finished difference Result 8731 states and 13191 transitions. [2022-01-10 13:47:35,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:35,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:35,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:35,219 INFO L225 Difference]: With dead ends: 8731 [2022-01-10 13:47:35,219 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:35,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:35,224 INFO L933 BasicCegarLoop]: 6421 mSDtfsCounter, 6276 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6276 SdHoareTripleChecker+Valid, 6544 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:35,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6276 Valid, 6544 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:35,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:35,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:35,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5740536567438441) internal successors, (8566), 5444 states have internal predecessors, (8566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:35,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8566 transitions. [2022-01-10 13:47:35,355 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8566 transitions. Word has length 165 [2022-01-10 13:47:35,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:35,355 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8566 transitions. [2022-01-10 13:47:35,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:35,356 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8566 transitions. [2022-01-10 13:47:35,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:35,357 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:35,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:35,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 13:47:35,358 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:35,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:35,358 INFO L85 PathProgramCache]: Analyzing trace with hash 2126280131, now seen corresponding path program 1 times [2022-01-10 13:47:35,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:35,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887818045] [2022-01-10 13:47:35,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:35,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:35,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:35,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:35,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887818045] [2022-01-10 13:47:35,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887818045] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:35,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:35,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:35,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536296120] [2022-01-10 13:47:35,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:35,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:35,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:35,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:35,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:35,396 INFO L87 Difference]: Start difference. First operand 5445 states and 8566 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:35,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:35,540 INFO L93 Difference]: Finished difference Result 8730 states and 13118 transitions. [2022-01-10 13:47:35,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:35,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:35,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:35,546 INFO L225 Difference]: With dead ends: 8730 [2022-01-10 13:47:35,546 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:35,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:35,550 INFO L933 BasicCegarLoop]: 6401 mSDtfsCounter, 6256 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6256 SdHoareTripleChecker+Valid, 6523 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:35,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6256 Valid, 6523 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:35,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:35,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:35,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5674384417493568) internal successors, (8530), 5444 states have internal predecessors, (8530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:35,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8530 transitions. [2022-01-10 13:47:35,674 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8530 transitions. Word has length 165 [2022-01-10 13:47:35,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:35,674 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8530 transitions. [2022-01-10 13:47:35,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:35,674 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8530 transitions. [2022-01-10 13:47:35,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:35,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:35,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:35,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 13:47:35,676 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:35,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:35,677 INFO L85 PathProgramCache]: Analyzing trace with hash 58997794, now seen corresponding path program 1 times [2022-01-10 13:47:35,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:35,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460377612] [2022-01-10 13:47:35,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:35,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:35,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:35,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:35,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460377612] [2022-01-10 13:47:35,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460377612] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:35,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:35,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:35,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790393199] [2022-01-10 13:47:35,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:35,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:35,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:35,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:35,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:35,735 INFO L87 Difference]: Start difference. First operand 5445 states and 8530 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:35,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:35,897 INFO L93 Difference]: Finished difference Result 8729 states and 13045 transitions. [2022-01-10 13:47:35,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:35,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:35,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:35,904 INFO L225 Difference]: With dead ends: 8729 [2022-01-10 13:47:35,904 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:35,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:35,909 INFO L933 BasicCegarLoop]: 6381 mSDtfsCounter, 6236 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6236 SdHoareTripleChecker+Valid, 6502 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:35,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6236 Valid, 6502 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:35,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:36,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:36,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5608232267548696) internal successors, (8494), 5444 states have internal predecessors, (8494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:36,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8494 transitions. [2022-01-10 13:47:36,053 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8494 transitions. Word has length 165 [2022-01-10 13:47:36,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:36,053 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8494 transitions. [2022-01-10 13:47:36,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:36,053 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8494 transitions. [2022-01-10 13:47:36,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:36,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:36,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:36,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 13:47:36,054 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:36,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:36,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1425825919, now seen corresponding path program 1 times [2022-01-10 13:47:36,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:36,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719351495] [2022-01-10 13:47:36,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:36,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:36,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:36,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:36,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719351495] [2022-01-10 13:47:36,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719351495] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:36,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:36,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:36,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388733826] [2022-01-10 13:47:36,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:36,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:36,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:36,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:36,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:36,100 INFO L87 Difference]: Start difference. First operand 5445 states and 8494 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:36,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:36,270 INFO L93 Difference]: Finished difference Result 8728 states and 12972 transitions. [2022-01-10 13:47:36,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:36,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:36,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:36,279 INFO L225 Difference]: With dead ends: 8728 [2022-01-10 13:47:36,279 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:36,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:36,282 INFO L933 BasicCegarLoop]: 6361 mSDtfsCounter, 6216 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6216 SdHoareTripleChecker+Valid, 6481 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:36,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6216 Valid, 6481 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:36,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:36,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:36,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5542080117603823) internal successors, (8458), 5444 states have internal predecessors, (8458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:36,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8458 transitions. [2022-01-10 13:47:36,416 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8458 transitions. Word has length 165 [2022-01-10 13:47:36,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:36,416 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8458 transitions. [2022-01-10 13:47:36,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:36,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8458 transitions. [2022-01-10 13:47:36,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:36,417 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:36,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:36,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 13:47:36,417 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:36,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:36,418 INFO L85 PathProgramCache]: Analyzing trace with hash -546778016, now seen corresponding path program 1 times [2022-01-10 13:47:36,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:36,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201583364] [2022-01-10 13:47:36,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:36,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:36,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:36,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:36,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201583364] [2022-01-10 13:47:36,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201583364] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:36,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:36,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:36,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617309227] [2022-01-10 13:47:36,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:36,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:36,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:36,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:36,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:36,459 INFO L87 Difference]: Start difference. First operand 5445 states and 8458 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:36,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:36,611 INFO L93 Difference]: Finished difference Result 8727 states and 12899 transitions. [2022-01-10 13:47:36,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:36,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:36,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:36,617 INFO L225 Difference]: With dead ends: 8727 [2022-01-10 13:47:36,618 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:36,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:36,622 INFO L933 BasicCegarLoop]: 6341 mSDtfsCounter, 6196 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6196 SdHoareTripleChecker+Valid, 6460 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:36,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6196 Valid, 6460 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:36,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:36,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:36,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.547592796765895) internal successors, (8422), 5444 states have internal predecessors, (8422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:36,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8422 transitions. [2022-01-10 13:47:36,774 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8422 transitions. Word has length 165 [2022-01-10 13:47:36,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:36,774 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8422 transitions. [2022-01-10 13:47:36,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:36,774 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8422 transitions. [2022-01-10 13:47:36,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:36,775 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:36,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:36,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 13:47:36,775 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:36,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:36,776 INFO L85 PathProgramCache]: Analyzing trace with hash -398854593, now seen corresponding path program 1 times [2022-01-10 13:47:36,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:36,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152268556] [2022-01-10 13:47:36,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:36,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:36,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:36,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:36,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152268556] [2022-01-10 13:47:36,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152268556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:36,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:36,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:36,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032915982] [2022-01-10 13:47:36,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:36,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:36,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:36,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:36,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:36,808 INFO L87 Difference]: Start difference. First operand 5445 states and 8422 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:36,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:36,971 INFO L93 Difference]: Finished difference Result 8726 states and 12826 transitions. [2022-01-10 13:47:36,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:36,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:36,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:36,977 INFO L225 Difference]: With dead ends: 8726 [2022-01-10 13:47:36,978 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:36,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:36,983 INFO L933 BasicCegarLoop]: 6321 mSDtfsCounter, 6176 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6176 SdHoareTripleChecker+Valid, 6439 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:36,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6176 Valid, 6439 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:36,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:37,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:37,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5409775817714075) internal successors, (8386), 5444 states have internal predecessors, (8386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:37,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8386 transitions. [2022-01-10 13:47:37,128 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8386 transitions. Word has length 165 [2022-01-10 13:47:37,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:37,129 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8386 transitions. [2022-01-10 13:47:37,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:37,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8386 transitions. [2022-01-10 13:47:37,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:37,130 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:37,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:37,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 13:47:37,130 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:37,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:37,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1689541022, now seen corresponding path program 1 times [2022-01-10 13:47:37,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:37,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926542262] [2022-01-10 13:47:37,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:37,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:37,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:37,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:37,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926542262] [2022-01-10 13:47:37,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926542262] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:37,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:37,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:37,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365541335] [2022-01-10 13:47:37,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:37,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:37,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:37,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:37,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:37,173 INFO L87 Difference]: Start difference. First operand 5445 states and 8386 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:37,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:37,349 INFO L93 Difference]: Finished difference Result 8725 states and 12753 transitions. [2022-01-10 13:47:37,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:37,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:37,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:37,355 INFO L225 Difference]: With dead ends: 8725 [2022-01-10 13:47:37,355 INFO L226 Difference]: Without dead ends: 5445 [2022-01-10 13:47:37,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:37,358 INFO L933 BasicCegarLoop]: 6301 mSDtfsCounter, 6156 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6156 SdHoareTripleChecker+Valid, 6418 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:37,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6156 Valid, 6418 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:37,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-10 13:47:37,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-10 13:47:37,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5343623667769202) internal successors, (8350), 5444 states have internal predecessors, (8350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:37,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8350 transitions. [2022-01-10 13:47:37,501 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8350 transitions. Word has length 165 [2022-01-10 13:47:37,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:37,501 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8350 transitions. [2022-01-10 13:47:37,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:37,501 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8350 transitions. [2022-01-10 13:47:37,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:37,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:37,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:37,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 13:47:37,502 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:37,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:37,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1120208387, now seen corresponding path program 1 times [2022-01-10 13:47:37,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:37,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031301618] [2022-01-10 13:47:37,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:37,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:37,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:37,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:37,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031301618] [2022-01-10 13:47:37,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031301618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:37,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:37,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:37,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970325037] [2022-01-10 13:47:37,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:37,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:37,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:37,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:37,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:37,537 INFO L87 Difference]: Start difference. First operand 5445 states and 8350 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:37,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:37,833 INFO L93 Difference]: Finished difference Result 11659 states and 16549 transitions. [2022-01-10 13:47:37,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:37,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:37,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:37,843 INFO L225 Difference]: With dead ends: 11659 [2022-01-10 13:47:37,843 INFO L226 Difference]: Without dead ends: 8388 [2022-01-10 13:47:37,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:37,848 INFO L933 BasicCegarLoop]: 6302 mSDtfsCounter, 6098 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6098 SdHoareTripleChecker+Valid, 8421 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:37,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6098 Valid, 8421 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:37,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8388 states. [2022-01-10 13:47:38,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8388 to 8380. [2022-01-10 13:47:38,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8380 states, 8377 states have (on average 1.4555330070430943) internal successors, (12193), 8379 states have internal predecessors, (12193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:38,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8380 states to 8380 states and 12193 transitions. [2022-01-10 13:47:38,113 INFO L78 Accepts]: Start accepts. Automaton has 8380 states and 12193 transitions. Word has length 165 [2022-01-10 13:47:38,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:38,114 INFO L470 AbstractCegarLoop]: Abstraction has 8380 states and 12193 transitions. [2022-01-10 13:47:38,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:38,114 INFO L276 IsEmpty]: Start isEmpty. Operand 8380 states and 12193 transitions. [2022-01-10 13:47:38,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:38,115 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:38,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:38,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 13:47:38,115 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:38,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:38,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1932763204, now seen corresponding path program 1 times [2022-01-10 13:47:38,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:38,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935578610] [2022-01-10 13:47:38,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:38,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:38,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:38,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:38,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935578610] [2022-01-10 13:47:38,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935578610] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:38,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:38,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:47:38,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031800717] [2022-01-10 13:47:38,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:38,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:47:38,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:38,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:47:38,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:47:38,171 INFO L87 Difference]: Start difference. First operand 8380 states and 12193 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:39,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:39,020 INFO L93 Difference]: Finished difference Result 20440 states and 28049 transitions. [2022-01-10 13:47:39,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:47:39,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:39,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:39,043 INFO L225 Difference]: With dead ends: 20440 [2022-01-10 13:47:39,043 INFO L226 Difference]: Without dead ends: 14238 [2022-01-10 13:47:39,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 13:47:39,056 INFO L933 BasicCegarLoop]: 6476 mSDtfsCounter, 8127 mSDsluCounter, 22135 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8127 SdHoareTripleChecker+Valid, 28611 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:39,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8127 Valid, 28611 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:47:39,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14238 states. [2022-01-10 13:47:39,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14238 to 8467. [2022-01-10 13:47:39,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8467 states, 8464 states have (on average 1.4475425330812854) internal successors, (12252), 8466 states have internal predecessors, (12252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:39,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8467 states to 8467 states and 12252 transitions. [2022-01-10 13:47:39,494 INFO L78 Accepts]: Start accepts. Automaton has 8467 states and 12252 transitions. Word has length 165 [2022-01-10 13:47:39,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:39,494 INFO L470 AbstractCegarLoop]: Abstraction has 8467 states and 12252 transitions. [2022-01-10 13:47:39,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:39,495 INFO L276 IsEmpty]: Start isEmpty. Operand 8467 states and 12252 transitions. [2022-01-10 13:47:39,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:39,496 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:39,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:39,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 13:47:39,496 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:39,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:39,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1842911805, now seen corresponding path program 1 times [2022-01-10 13:47:39,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:39,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509620198] [2022-01-10 13:47:39,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:39,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:39,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:39,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:39,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509620198] [2022-01-10 13:47:39,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509620198] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:39,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:39,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:47:39,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238755524] [2022-01-10 13:47:39,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:39,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:47:39,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:39,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:47:39,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:47:39,542 INFO L87 Difference]: Start difference. First operand 8467 states and 12252 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:40,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:40,212 INFO L93 Difference]: Finished difference Result 18623 states and 25646 transitions. [2022-01-10 13:47:40,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:47:40,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:40,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:40,231 INFO L225 Difference]: With dead ends: 18623 [2022-01-10 13:47:40,231 INFO L226 Difference]: Without dead ends: 12369 [2022-01-10 13:47:40,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 13:47:40,241 INFO L933 BasicCegarLoop]: 6369 mSDtfsCounter, 5789 mSDsluCounter, 16154 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5789 SdHoareTripleChecker+Valid, 22523 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:40,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5789 Valid, 22523 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:47:40,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12369 states. [2022-01-10 13:47:40,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12369 to 8479. [2022-01-10 13:47:40,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8479 states, 8476 states have (on average 1.440655969797074) internal successors, (12211), 8478 states have internal predecessors, (12211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:40,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8479 states to 8479 states and 12211 transitions. [2022-01-10 13:47:40,715 INFO L78 Accepts]: Start accepts. Automaton has 8479 states and 12211 transitions. Word has length 165 [2022-01-10 13:47:40,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:40,716 INFO L470 AbstractCegarLoop]: Abstraction has 8479 states and 12211 transitions. [2022-01-10 13:47:40,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:40,716 INFO L276 IsEmpty]: Start isEmpty. Operand 8479 states and 12211 transitions. [2022-01-10 13:47:40,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:40,717 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:40,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:40,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 13:47:40,717 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:40,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:40,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1963031678, now seen corresponding path program 1 times [2022-01-10 13:47:40,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:40,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230427162] [2022-01-10 13:47:40,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:40,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:40,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:40,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:40,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230427162] [2022-01-10 13:47:40,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230427162] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:40,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:40,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:47:40,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497814525] [2022-01-10 13:47:40,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:40,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:47:40,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:40,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:47:40,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:47:40,775 INFO L87 Difference]: Start difference. First operand 8479 states and 12211 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:41,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:41,501 INFO L93 Difference]: Finished difference Result 18974 states and 25936 transitions. [2022-01-10 13:47:41,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:47:41,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:41,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:41,517 INFO L225 Difference]: With dead ends: 18974 [2022-01-10 13:47:41,517 INFO L226 Difference]: Without dead ends: 12715 [2022-01-10 13:47:41,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 13:47:41,525 INFO L933 BasicCegarLoop]: 6336 mSDtfsCounter, 5598 mSDsluCounter, 16483 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5598 SdHoareTripleChecker+Valid, 22819 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:41,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5598 Valid, 22819 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:47:41,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12715 states. [2022-01-10 13:47:41,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12715 to 8491. [2022-01-10 13:47:41,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8491 states, 8488 states have (on average 1.4337888784165882) internal successors, (12170), 8490 states have internal predecessors, (12170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:41,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8491 states to 8491 states and 12170 transitions. [2022-01-10 13:47:41,978 INFO L78 Accepts]: Start accepts. Automaton has 8491 states and 12170 transitions. Word has length 165 [2022-01-10 13:47:41,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:41,978 INFO L470 AbstractCegarLoop]: Abstraction has 8491 states and 12170 transitions. [2022-01-10 13:47:41,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:41,978 INFO L276 IsEmpty]: Start isEmpty. Operand 8491 states and 12170 transitions. [2022-01-10 13:47:41,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:41,979 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:41,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:41,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 13:47:41,979 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:41,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:41,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1007510399, now seen corresponding path program 1 times [2022-01-10 13:47:41,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:41,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905444001] [2022-01-10 13:47:41,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:41,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:42,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:42,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905444001] [2022-01-10 13:47:42,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905444001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:42,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:42,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:42,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856582963] [2022-01-10 13:47:42,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:42,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:42,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:42,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:42,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:42,068 INFO L87 Difference]: Start difference. First operand 8491 states and 12170 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:42,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:42,492 INFO L93 Difference]: Finished difference Result 14839 states and 20346 transitions. [2022-01-10 13:47:42,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:42,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:42,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:42,504 INFO L225 Difference]: With dead ends: 14839 [2022-01-10 13:47:42,504 INFO L226 Difference]: Without dead ends: 8491 [2022-01-10 13:47:42,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:42,513 INFO L933 BasicCegarLoop]: 6277 mSDtfsCounter, 6155 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6155 SdHoareTripleChecker+Valid, 6277 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:42,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6155 Valid, 6277 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:42,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8491 states. [2022-01-10 13:47:42,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8491 to 8491. [2022-01-10 13:47:42,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8491 states, 8488 states have (on average 1.4321394910461829) internal successors, (12156), 8490 states have internal predecessors, (12156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:42,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8491 states to 8491 states and 12156 transitions. [2022-01-10 13:47:42,954 INFO L78 Accepts]: Start accepts. Automaton has 8491 states and 12156 transitions. Word has length 165 [2022-01-10 13:47:42,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:42,954 INFO L470 AbstractCegarLoop]: Abstraction has 8491 states and 12156 transitions. [2022-01-10 13:47:42,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:42,955 INFO L276 IsEmpty]: Start isEmpty. Operand 8491 states and 12156 transitions. [2022-01-10 13:47:42,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:42,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:42,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:42,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 13:47:42,956 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:42,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:42,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1654652898, now seen corresponding path program 1 times [2022-01-10 13:47:42,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:42,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771679844] [2022-01-10 13:47:42,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:42,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:43,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:43,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:43,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771679844] [2022-01-10 13:47:43,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771679844] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:43,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:43,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:43,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85175241] [2022-01-10 13:47:43,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:43,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:43,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:43,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:43,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:43,020 INFO L87 Difference]: Start difference. First operand 8491 states and 12156 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:43,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:43,508 INFO L93 Difference]: Finished difference Result 14832 states and 20311 transitions. [2022-01-10 13:47:43,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:43,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:43,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:43,519 INFO L225 Difference]: With dead ends: 14832 [2022-01-10 13:47:43,519 INFO L226 Difference]: Without dead ends: 8491 [2022-01-10 13:47:43,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:43,525 INFO L933 BasicCegarLoop]: 6272 mSDtfsCounter, 6143 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6143 SdHoareTripleChecker+Valid, 6272 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:43,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6143 Valid, 6272 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:43,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8491 states. [2022-01-10 13:47:43,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8491 to 8491. [2022-01-10 13:47:43,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8491 states, 8488 states have (on average 1.4304901036757776) internal successors, (12142), 8490 states have internal predecessors, (12142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:43,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8491 states to 8491 states and 12142 transitions. [2022-01-10 13:47:43,941 INFO L78 Accepts]: Start accepts. Automaton has 8491 states and 12142 transitions. Word has length 165 [2022-01-10 13:47:43,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:43,941 INFO L470 AbstractCegarLoop]: Abstraction has 8491 states and 12142 transitions. [2022-01-10 13:47:43,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:43,941 INFO L276 IsEmpty]: Start isEmpty. Operand 8491 states and 12142 transitions. [2022-01-10 13:47:43,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:47:43,942 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:43,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:43,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 13:47:43,943 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:43,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:43,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1303852961, now seen corresponding path program 1 times [2022-01-10 13:47:43,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:43,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869830505] [2022-01-10 13:47:43,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:43,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:43,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:43,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:43,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869830505] [2022-01-10 13:47:43,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869830505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:43,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:43,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:47:43,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851673605] [2022-01-10 13:47:43,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:43,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:43,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:43,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:43,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:43,998 INFO L87 Difference]: Start difference. First operand 8491 states and 12142 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:44,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:44,870 INFO L93 Difference]: Finished difference Result 20938 states and 28143 transitions. [2022-01-10 13:47:44,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:44,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-01-10 13:47:44,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:44,886 INFO L225 Difference]: With dead ends: 20938 [2022-01-10 13:47:44,886 INFO L226 Difference]: Without dead ends: 14614 [2022-01-10 13:47:44,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:44,891 INFO L933 BasicCegarLoop]: 6258 mSDtfsCounter, 6068 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6068 SdHoareTripleChecker+Valid, 8343 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:44,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6068 Valid, 8343 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:44,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14614 states. [2022-01-10 13:47:45,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14614 to 14250. [2022-01-10 13:47:45,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14250 states, 14247 states have (on average 1.3690601530146698) internal successors, (19505), 14249 states have internal predecessors, (19505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:45,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14250 states to 14250 states and 19505 transitions. [2022-01-10 13:47:45,682 INFO L78 Accepts]: Start accepts. Automaton has 14250 states and 19505 transitions. Word has length 165 [2022-01-10 13:47:45,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:45,683 INFO L470 AbstractCegarLoop]: Abstraction has 14250 states and 19505 transitions. [2022-01-10 13:47:45,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:45,683 INFO L276 IsEmpty]: Start isEmpty. Operand 14250 states and 19505 transitions. [2022-01-10 13:47:45,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-10 13:47:45,689 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:45,689 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:45,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 13:47:45,690 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:45,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:45,690 INFO L85 PathProgramCache]: Analyzing trace with hash -714949087, now seen corresponding path program 1 times [2022-01-10 13:47:45,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:45,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070811672] [2022-01-10 13:47:45,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:45,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:45,752 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:45,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:45,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070811672] [2022-01-10 13:47:45,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070811672] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:45,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:45,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:47:45,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968739687] [2022-01-10 13:47:45,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:45,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:47:45,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:45,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:47:45,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:47:45,754 INFO L87 Difference]: Start difference. First operand 14250 states and 19505 transitions. Second operand has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:47,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:47,431 INFO L93 Difference]: Finished difference Result 36310 states and 47956 transitions. [2022-01-10 13:47:47,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:47:47,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2022-01-10 13:47:47,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:47,455 INFO L225 Difference]: With dead ends: 36310 [2022-01-10 13:47:47,455 INFO L226 Difference]: Without dead ends: 24300 [2022-01-10 13:47:47,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 13:47:47,464 INFO L933 BasicCegarLoop]: 6255 mSDtfsCounter, 5055 mSDsluCounter, 17534 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5055 SdHoareTripleChecker+Valid, 23789 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:47,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5055 Valid, 23789 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:47:47,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24300 states. [2022-01-10 13:47:48,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24300 to 14274. [2022-01-10 13:47:48,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14274 states, 14271 states have (on average 1.3613622030691612) internal successors, (19428), 14273 states have internal predecessors, (19428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:48,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14274 states to 14274 states and 19428 transitions. [2022-01-10 13:47:48,340 INFO L78 Accepts]: Start accepts. Automaton has 14274 states and 19428 transitions. Word has length 268 [2022-01-10 13:47:48,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:48,340 INFO L470 AbstractCegarLoop]: Abstraction has 14274 states and 19428 transitions. [2022-01-10 13:47:48,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:48,340 INFO L276 IsEmpty]: Start isEmpty. Operand 14274 states and 19428 transitions. [2022-01-10 13:47:48,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-10 13:47:48,346 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:48,347 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:48,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 13:47:48,347 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:48,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:48,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1796500127, now seen corresponding path program 1 times [2022-01-10 13:47:48,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:48,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720253136] [2022-01-10 13:47:48,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:48,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:48,407 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:48,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:48,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720253136] [2022-01-10 13:47:48,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720253136] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:48,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:48,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:47:48,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500705808] [2022-01-10 13:47:48,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:48,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:48,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:48,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:48,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:48,409 INFO L87 Difference]: Start difference. First operand 14274 states and 19428 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:50,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:50,172 INFO L93 Difference]: Finished difference Result 38059 states and 49512 transitions. [2022-01-10 13:47:50,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:50,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2022-01-10 13:47:50,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:50,209 INFO L225 Difference]: With dead ends: 38059 [2022-01-10 13:47:50,209 INFO L226 Difference]: Without dead ends: 26067 [2022-01-10 13:47:50,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:50,220 INFO L933 BasicCegarLoop]: 7707 mSDtfsCounter, 5910 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5910 SdHoareTripleChecker+Valid, 9975 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:50,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5910 Valid, 9975 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:50,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26067 states. [2022-01-10 13:47:51,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26067 to 25739. [2022-01-10 13:47:51,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25739 states, 25736 states have (on average 1.3133354056574449) internal successors, (33800), 25738 states have internal predecessors, (33800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:51,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25739 states to 25739 states and 33800 transitions. [2022-01-10 13:47:51,992 INFO L78 Accepts]: Start accepts. Automaton has 25739 states and 33800 transitions. Word has length 268 [2022-01-10 13:47:51,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:51,992 INFO L470 AbstractCegarLoop]: Abstraction has 25739 states and 33800 transitions. [2022-01-10 13:47:51,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:51,993 INFO L276 IsEmpty]: Start isEmpty. Operand 25739 states and 33800 transitions. [2022-01-10 13:47:52,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-10 13:47:52,004 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:52,004 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:52,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 13:47:52,005 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:52,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:52,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2013830338, now seen corresponding path program 1 times [2022-01-10 13:47:52,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:52,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799860941] [2022-01-10 13:47:52,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:52,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:52,039 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:47:52,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:52,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799860941] [2022-01-10 13:47:52,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799860941] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:52,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:52,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:47:52,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883786259] [2022-01-10 13:47:52,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:52,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:52,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:52,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:52,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:52,041 INFO L87 Difference]: Start difference. First operand 25739 states and 33800 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:53,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:53,411 INFO L93 Difference]: Finished difference Result 43358 states and 56068 transitions. [2022-01-10 13:47:53,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:53,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 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 268 [2022-01-10 13:47:53,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:53,438 INFO L225 Difference]: With dead ends: 43358 [2022-01-10 13:47:53,438 INFO L226 Difference]: Without dead ends: 19901 [2022-01-10 13:47:53,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:53,463 INFO L933 BasicCegarLoop]: 6258 mSDtfsCounter, 2296 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2296 SdHoareTripleChecker+Valid, 10216 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:53,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2296 Valid, 10216 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:53,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19901 states. [2022-01-10 13:47:54,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19901 to 19901. [2022-01-10 13:47:54,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19901 states, 19898 states have (on average 1.3278218916474018) internal successors, (26421), 19900 states have internal predecessors, (26421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:54,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19901 states to 19901 states and 26421 transitions. [2022-01-10 13:47:54,864 INFO L78 Accepts]: Start accepts. Automaton has 19901 states and 26421 transitions. Word has length 268 [2022-01-10 13:47:54,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:47:54,865 INFO L470 AbstractCegarLoop]: Abstraction has 19901 states and 26421 transitions. [2022-01-10 13:47:54,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:54,865 INFO L276 IsEmpty]: Start isEmpty. Operand 19901 states and 26421 transitions. [2022-01-10 13:47:54,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-01-10 13:47:54,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:47:54,873 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:47:54,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 13:47:54,873 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:47:54,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:47:54,874 INFO L85 PathProgramCache]: Analyzing trace with hash 2090897317, now seen corresponding path program 1 times [2022-01-10 13:47:54,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:47:54,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463946798] [2022-01-10 13:47:54,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:47:54,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:47:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:47:54,932 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:47:54,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:47:54,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463946798] [2022-01-10 13:47:54,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463946798] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:47:54,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:47:54,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:47:54,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628875951] [2022-01-10 13:47:54,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:47:54,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:47:54,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:47:54,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:47:54,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:54,933 INFO L87 Difference]: Start difference. First operand 19901 states and 26421 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:47:57,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:47:57,604 INFO L93 Difference]: Finished difference Result 54859 states and 70487 transitions. [2022-01-10 13:47:57,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:47:57,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 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 269 [2022-01-10 13:47:57,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:47:57,653 INFO L225 Difference]: With dead ends: 54859 [2022-01-10 13:47:57,654 INFO L226 Difference]: Without dead ends: 37240 [2022-01-10 13:47:57,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:47:57,667 INFO L933 BasicCegarLoop]: 6708 mSDtfsCounter, 6076 mSDsluCounter, 2265 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6076 SdHoareTripleChecker+Valid, 8973 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:47:57,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6076 Valid, 8973 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:47:57,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37240 states. [2022-01-10 13:48:00,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37240 to 36348. [2022-01-10 13:48:00,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36348 states, 36345 states have (on average 1.2956115008942082) internal successors, (47089), 36347 states have internal predecessors, (47089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:48:00,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36348 states to 36348 states and 47089 transitions. [2022-01-10 13:48:00,617 INFO L78 Accepts]: Start accepts. Automaton has 36348 states and 47089 transitions. Word has length 269 [2022-01-10 13:48:00,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:48:00,618 INFO L470 AbstractCegarLoop]: Abstraction has 36348 states and 47089 transitions. [2022-01-10 13:48:00,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:48:00,618 INFO L276 IsEmpty]: Start isEmpty. Operand 36348 states and 47089 transitions. [2022-01-10 13:48:00,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-01-10 13:48:00,631 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:48:00,631 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:48:00,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 13:48:00,631 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:48:00,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:48:00,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1829707654, now seen corresponding path program 1 times [2022-01-10 13:48:00,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:48:00,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852644752] [2022-01-10 13:48:00,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:48:00,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:48:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:48:00,676 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:48:00,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:48:00,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852644752] [2022-01-10 13:48:00,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852644752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:48:00,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:48:00,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:48:00,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128053058] [2022-01-10 13:48:00,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:48:00,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:48:00,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:48:00,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:48:00,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:48:00,678 INFO L87 Difference]: Start difference. First operand 36348 states and 47089 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:48:03,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:48:03,664 INFO L93 Difference]: Finished difference Result 70358 states and 89955 transitions. [2022-01-10 13:48:03,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:48:03,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 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 269 [2022-01-10 13:48:03,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:48:03,711 INFO L225 Difference]: With dead ends: 70358 [2022-01-10 13:48:03,712 INFO L226 Difference]: Without dead ends: 36194 [2022-01-10 13:48:03,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:48:03,741 INFO L933 BasicCegarLoop]: 6257 mSDtfsCounter, 2294 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2294 SdHoareTripleChecker+Valid, 10215 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:48:03,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2294 Valid, 10215 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:48:03,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36194 states. [2022-01-10 13:48:06,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36194 to 36194. [2022-01-10 13:48:06,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36194 states, 36191 states have (on average 1.2959575585090215) internal successors, (46902), 36193 states have internal predecessors, (46902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:48:06,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36194 states to 36194 states and 46902 transitions. [2022-01-10 13:48:06,689 INFO L78 Accepts]: Start accepts. Automaton has 36194 states and 46902 transitions. Word has length 269 [2022-01-10 13:48:06,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:48:06,689 INFO L470 AbstractCegarLoop]: Abstraction has 36194 states and 46902 transitions. [2022-01-10 13:48:06,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:48:06,690 INFO L276 IsEmpty]: Start isEmpty. Operand 36194 states and 46902 transitions. [2022-01-10 13:48:06,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-01-10 13:48:06,703 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:48:06,704 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:48:06,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 13:48:06,704 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:48:06,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:48:06,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1974657550, now seen corresponding path program 1 times [2022-01-10 13:48:06,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:48:06,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100739239] [2022-01-10 13:48:06,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:48:06,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:48:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:48:06,768 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:48:06,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:48:06,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100739239] [2022-01-10 13:48:06,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100739239] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:48:06,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:48:06,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:48:06,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221119052] [2022-01-10 13:48:06,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:48:06,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:48:06,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:48:06,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:48:06,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:48:06,770 INFO L87 Difference]: Start difference. First operand 36194 states and 46902 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:48:12,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:48:12,399 INFO L93 Difference]: Finished difference Result 103267 states and 131322 transitions. [2022-01-10 13:48:12,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:48:12,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 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 270 [2022-01-10 13:48:12,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:48:12,500 INFO L225 Difference]: With dead ends: 103267 [2022-01-10 13:48:12,500 INFO L226 Difference]: Without dead ends: 69355 [2022-01-10 13:48:12,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:48:12,534 INFO L933 BasicCegarLoop]: 6843 mSDtfsCounter, 6076 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6076 SdHoareTripleChecker+Valid, 9106 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:48:12,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6076 Valid, 9106 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:48:12,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69355 states.