/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_SUM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 03:41:37,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 03:41:37,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 03:41:38,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-11 03:41:38,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 03:41:38,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 03:41:38,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 03:41:38,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 03:41:38,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 03:41:38,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 03:41:38,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 03:41:38,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 03:41:38,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 03:41:38,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 03:41:38,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 03:41:38,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 03:41:38,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 03:41:38,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 03:41:38,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 03:41:38,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 03:41:38,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 03:41:38,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 03:41:38,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 03:41:38,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 03:41:38,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 03:41:38,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 03:41:38,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 03:41:38,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 03:41:38,059 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 03:41:38,074 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 03:41:38,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 03:41:38,074 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 03:41:38,074 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 03:41:38,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 03:41:38,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 03:41:38,075 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 03:41:38,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 03:41:38,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 03:41:38,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 03:41:38,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 03:41:38,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 03:41:38,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 03:41:38,076 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 03:41:38,076 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 03:41:38,076 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 03:41:38,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 03:41:38,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 03:41:38,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 03:41:38,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 03:41:38,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 03:41:38,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 03:41:38,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 03:41:38,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 03:41:38,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 03:41:38,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 03:41:38,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 03:41:38,077 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 03:41:38,077 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 03:41:38,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 03:41:38,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 03:41:38,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 03:41:38,078 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 03:41:38,078 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 03:41:38,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 03:41:38,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 03:41:38,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 03:41:38,278 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 03:41:38,281 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 03:41:38,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label13.c [2022-01-11 03:41:38,336 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e63a6b9f/43032f8983fc4620abde4879b753c3bd/FLAG951d993a3 [2022-01-11 03:41:38,874 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 03:41:38,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label13.c [2022-01-11 03:41:38,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e63a6b9f/43032f8983fc4620abde4879b753c3bd/FLAG951d993a3 [2022-01-11 03:41:39,082 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e63a6b9f/43032f8983fc4620abde4879b753c3bd [2022-01-11 03:41:39,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 03:41:39,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 03:41:39,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 03:41:39,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 03:41:39,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 03:41:39,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:41:39" (1/1) ... [2022-01-11 03:41:39,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4ad856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:41:39, skipping insertion in model container [2022-01-11 03:41:39,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:41:39" (1/1) ... [2022-01-11 03:41:39,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 03:41:39,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 03:41:39,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label13.c[179372,179385] [2022-01-11 03:41:40,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:41:40,018 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 03:41:40,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label13.c[179372,179385] [2022-01-11 03:41:40,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:41:40,388 INFO L208 MainTranslator]: Completed translation [2022-01-11 03:41:40,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:41:40 WrapperNode [2022-01-11 03:41:40,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 03:41:40,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 03:41:40,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 03:41:40,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 03:41:40,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:41:40" (1/1) ... [2022-01-11 03:41:40,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:41:40" (1/1) ... [2022-01-11 03:41:40,560 INFO L137 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5567 [2022-01-11 03:41:40,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 03:41:40,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 03:41:40,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 03:41:40,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 03:41:40,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:41:40" (1/1) ... [2022-01-11 03:41:40,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:41:40" (1/1) ... [2022-01-11 03:41:40,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:41:40" (1/1) ... [2022-01-11 03:41:40,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:41:40" (1/1) ... [2022-01-11 03:41:40,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:41:40" (1/1) ... [2022-01-11 03:41:40,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:41:40" (1/1) ... [2022-01-11 03:41:40,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:41:40" (1/1) ... [2022-01-11 03:41:40,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 03:41:40,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 03:41:40,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 03:41:40,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 03:41:40,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:41:40" (1/1) ... [2022-01-11 03:41:40,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 03:41:40,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 03:41:40,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 03:41:40,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 03:41:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 03:41:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 03:41:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 03:41:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 03:41:40,937 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 03:41:40,938 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 03:41:44,468 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 03:41:44,483 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 03:41:44,483 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 03:41:44,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:41:44 BoogieIcfgContainer [2022-01-11 03:41:44,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 03:41:44,487 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 03:41:44,487 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 03:41:44,488 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 03:41:44,490 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:41:44" (1/1) ... [2022-01-11 03:41:45,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:41:45 BasicIcfg [2022-01-11 03:41:45,131 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 03:41:45,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 03:41:45,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 03:41:45,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 03:41:45,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 03:41:39" (1/4) ... [2022-01-11 03:41:45,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10940ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:41:45, skipping insertion in model container [2022-01-11 03:41:45,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:41:40" (2/4) ... [2022-01-11 03:41:45,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10940ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:41:45, skipping insertion in model container [2022-01-11 03:41:45,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:41:44" (3/4) ... [2022-01-11 03:41:45,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10940ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 03:41:45, skipping insertion in model container [2022-01-11 03:41:45,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:41:45" (4/4) ... [2022-01-11 03:41:45,138 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem04_label13.cTransformedIcfg [2022-01-11 03:41:45,142 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 03:41:45,142 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 03:41:45,188 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 03:41:45,195 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 03:41:45,195 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 03:41:45,225 INFO L276 IsEmpty]: Start isEmpty. Operand has 885 states, 883 states have (on average 1.9229898074745186) internal successors, (1698), 884 states have internal predecessors, (1698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:41:45,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 779 [2022-01-11 03:41:45,261 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:41:45,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:41:45,263 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:41:45,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:41:45,267 INFO L85 PathProgramCache]: Analyzing trace with hash 608946426, now seen corresponding path program 1 times [2022-01-11 03:41:45,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:41:45,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199167449] [2022-01-11 03:41:45,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:41:45,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:41:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:41:46,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:41:46,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:41:46,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199167449] [2022-01-11 03:41:46,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199167449] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:41:46,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:41:46,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:41:46,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502481541] [2022-01-11 03:41:46,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:41:46,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 03:41:46,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:41:46,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 03:41:46,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:41:46,889 INFO L87 Difference]: Start difference. First operand has 885 states, 883 states have (on average 1.9229898074745186) internal successors, (1698), 884 states have internal predecessors, (1698), 0 states have call successors, (0), 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 4 states, 4 states have (on average 194.5) internal successors, (778), 3 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:41:54,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:41:54,557 INFO L93 Difference]: Finished difference Result 4174 states and 8184 transitions. [2022-01-11 03:41:54,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 03:41:54,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 194.5) internal successors, (778), 3 states have internal predecessors, (778), 0 states have call successors, (0), 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 778 [2022-01-11 03:41:54,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:41:54,592 INFO L225 Difference]: With dead ends: 4174 [2022-01-11 03:41:54,593 INFO L226 Difference]: Without dead ends: 3219 [2022-01-11 03:41:54,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 03:41:54,606 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 1799 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 5220 mSolverCounterSat, 1992 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1799 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 7212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1992 IncrementalHoareTripleChecker+Valid, 5220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-01-11 03:41:54,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1799 Valid, 275 Invalid, 7212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1992 Valid, 5220 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-01-11 03:41:54,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2022-01-11 03:41:54,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 2458. [2022-01-11 03:41:54,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2458 states, 2457 states have (on average 1.5474155474155473) internal successors, (3802), 2457 states have internal predecessors, (3802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:41:54,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3802 transitions. [2022-01-11 03:41:54,716 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3802 transitions. Word has length 778 [2022-01-11 03:41:54,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:41:54,718 INFO L470 AbstractCegarLoop]: Abstraction has 2458 states and 3802 transitions. [2022-01-11 03:41:54,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.5) internal successors, (778), 3 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:41:54,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3802 transitions. [2022-01-11 03:41:54,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2022-01-11 03:41:54,732 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:41:54,732 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:41:54,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 03:41:54,733 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:41:54,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:41:54,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1685593467, now seen corresponding path program 1 times [2022-01-11 03:41:54,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:41:54,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815926314] [2022-01-11 03:41:54,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:41:54,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:41:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:41:55,085 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:41:55,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:41:55,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815926314] [2022-01-11 03:41:55,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815926314] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:41:55,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:41:55,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:41:55,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588864004] [2022-01-11 03:41:55,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:41:55,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 03:41:55,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:41:55,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 03:41:55,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:41:55,095 INFO L87 Difference]: Start difference. First operand 2458 states and 3802 transitions. Second operand has 4 states, 4 states have (on average 199.25) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:00,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:42:00,833 INFO L93 Difference]: Finished difference Result 8186 states and 13540 transitions. [2022-01-11 03:42:00,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 03:42:00,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 199.25) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 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 797 [2022-01-11 03:42:00,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:42:00,863 INFO L225 Difference]: With dead ends: 8186 [2022-01-11 03:42:00,863 INFO L226 Difference]: Without dead ends: 5730 [2022-01-11 03:42:00,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:42:00,868 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 1688 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4982 mSolverCounterSat, 1532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 6514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1532 IncrementalHoareTripleChecker+Valid, 4982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-01-11 03:42:00,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1688 Valid, 532 Invalid, 6514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1532 Valid, 4982 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-01-11 03:42:00,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5730 states. [2022-01-11 03:42:00,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5730 to 5730. [2022-01-11 03:42:00,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5730 states, 5729 states have (on average 1.4498167219410019) internal successors, (8306), 5729 states have internal predecessors, (8306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:00,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5730 states to 5730 states and 8306 transitions. [2022-01-11 03:42:00,957 INFO L78 Accepts]: Start accepts. Automaton has 5730 states and 8306 transitions. Word has length 797 [2022-01-11 03:42:00,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:42:00,957 INFO L470 AbstractCegarLoop]: Abstraction has 5730 states and 8306 transitions. [2022-01-11 03:42:00,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 199.25) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:00,957 INFO L276 IsEmpty]: Start isEmpty. Operand 5730 states and 8306 transitions. [2022-01-11 03:42:00,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 803 [2022-01-11 03:42:00,975 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:42:00,975 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:42:00,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 03:42:00,976 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:42:00,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:42:00,976 INFO L85 PathProgramCache]: Analyzing trace with hash 289213193, now seen corresponding path program 1 times [2022-01-11 03:42:00,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:42:00,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124726911] [2022-01-11 03:42:00,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:42:00,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:42:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:42:01,253 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-11 03:42:01,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:42:01,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124726911] [2022-01-11 03:42:01,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124726911] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:42:01,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:42:01,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:42:01,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689729528] [2022-01-11 03:42:01,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:42:01,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 03:42:01,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:42:01,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 03:42:01,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:42:01,257 INFO L87 Difference]: Start difference. First operand 5730 states and 8306 transitions. Second operand has 4 states, 4 states have (on average 199.75) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:05,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:42:05,884 INFO L93 Difference]: Finished difference Result 14730 states and 21114 transitions. [2022-01-11 03:42:05,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 03:42:05,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 199.75) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 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 802 [2022-01-11 03:42:05,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:42:05,909 INFO L225 Difference]: With dead ends: 14730 [2022-01-11 03:42:05,909 INFO L226 Difference]: Without dead ends: 9002 [2022-01-11 03:42:05,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:42:05,923 INFO L933 BasicCegarLoop]: 572 mSDtfsCounter, 1648 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 4272 mSolverCounterSat, 1088 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 5360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1088 IncrementalHoareTripleChecker+Valid, 4272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-11 03:42:05,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1648 Valid, 591 Invalid, 5360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1088 Valid, 4272 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-01-11 03:42:05,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9002 states. [2022-01-11 03:42:06,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9002 to 9002. [2022-01-11 03:42:06,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 1.3536273747361405) internal successors, (12184), 9001 states have internal predecessors, (12184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:06,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 12184 transitions. [2022-01-11 03:42:06,084 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 12184 transitions. Word has length 802 [2022-01-11 03:42:06,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:42:06,084 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 12184 transitions. [2022-01-11 03:42:06,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 199.75) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:06,085 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 12184 transitions. [2022-01-11 03:42:06,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2022-01-11 03:42:06,101 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:42:06,103 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:42:06,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 03:42:06,103 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:42:06,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:42:06,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1911489809, now seen corresponding path program 1 times [2022-01-11 03:42:06,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:42:06,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637752637] [2022-01-11 03:42:06,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:42:06,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:42:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:42:06,412 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-11 03:42:06,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:42:06,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637752637] [2022-01-11 03:42:06,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637752637] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:42:06,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:42:06,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 03:42:06,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459701081] [2022-01-11 03:42:06,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:42:06,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:42:06,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:42:06,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:42:06,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:42:06,415 INFO L87 Difference]: Start difference. First operand 9002 states and 12184 transitions. Second operand has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 2 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:09,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:42:09,700 INFO L93 Difference]: Finished difference Result 26182 states and 35717 transitions. [2022-01-11 03:42:09,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:42:09,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 2 states have internal predecessors, (802), 0 states have call successors, (0), 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 811 [2022-01-11 03:42:09,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:42:09,761 INFO L225 Difference]: With dead ends: 26182 [2022-01-11 03:42:09,761 INFO L226 Difference]: Without dead ends: 17182 [2022-01-11 03:42:09,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:42:09,770 INFO L933 BasicCegarLoop]: 467 mSDtfsCounter, 1071 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2065 mSolverCounterSat, 1063 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 3128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1063 IncrementalHoareTripleChecker+Valid, 2065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-11 03:42:09,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1071 Valid, 474 Invalid, 3128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1063 Valid, 2065 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-11 03:42:09,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17182 states. [2022-01-11 03:42:09,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17182 to 15546. [2022-01-11 03:42:09,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15546 states, 15545 states have (on average 1.291798005789643) internal successors, (20081), 15545 states have internal predecessors, (20081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:09,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15546 states to 15546 states and 20081 transitions. [2022-01-11 03:42:09,992 INFO L78 Accepts]: Start accepts. Automaton has 15546 states and 20081 transitions. Word has length 811 [2022-01-11 03:42:09,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:42:09,992 INFO L470 AbstractCegarLoop]: Abstraction has 15546 states and 20081 transitions. [2022-01-11 03:42:09,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 2 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:09,993 INFO L276 IsEmpty]: Start isEmpty. Operand 15546 states and 20081 transitions. [2022-01-11 03:42:10,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 865 [2022-01-11 03:42:10,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:42:10,020 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:42:10,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 03:42:10,020 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:42:10,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:42:10,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1592463062, now seen corresponding path program 1 times [2022-01-11 03:42:10,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:42:10,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481322854] [2022-01-11 03:42:10,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:42:10,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:42:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:42:10,335 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-01-11 03:42:10,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:42:10,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481322854] [2022-01-11 03:42:10,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481322854] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:42:10,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:42:10,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 03:42:10,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422720402] [2022-01-11 03:42:10,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:42:10,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:42:10,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:42:10,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:42:10,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:42:10,339 INFO L87 Difference]: Start difference. First operand 15546 states and 20081 transitions. Second operand has 3 states, 3 states have (on average 281.3333333333333) internal successors, (844), 2 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:13,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:42:13,525 INFO L93 Difference]: Finished difference Result 39270 states and 51991 transitions. [2022-01-11 03:42:13,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:42:13,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 281.3333333333333) internal successors, (844), 2 states have internal predecessors, (844), 0 states have call successors, (0), 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 864 [2022-01-11 03:42:13,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:42:13,562 INFO L225 Difference]: With dead ends: 39270 [2022-01-11 03:42:13,562 INFO L226 Difference]: Without dead ends: 23726 [2022-01-11 03:42:13,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:42:13,576 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 776 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2922 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 3326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-11 03:42:13,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [776 Valid, 411 Invalid, 3326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 2922 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-01-11 03:42:13,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23726 states. [2022-01-11 03:42:13,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23726 to 23726. [2022-01-11 03:42:13,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23726 states, 23725 states have (on average 1.3124552160168599) internal successors, (31138), 23725 states have internal predecessors, (31138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:13,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23726 states to 23726 states and 31138 transitions. [2022-01-11 03:42:13,861 INFO L78 Accepts]: Start accepts. Automaton has 23726 states and 31138 transitions. Word has length 864 [2022-01-11 03:42:13,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:42:13,861 INFO L470 AbstractCegarLoop]: Abstraction has 23726 states and 31138 transitions. [2022-01-11 03:42:13,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 281.3333333333333) internal successors, (844), 2 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:13,864 INFO L276 IsEmpty]: Start isEmpty. Operand 23726 states and 31138 transitions. [2022-01-11 03:42:13,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 923 [2022-01-11 03:42:13,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:42:13,905 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:42:13,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 03:42:13,905 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:42:13,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:42:13,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1375887525, now seen corresponding path program 1 times [2022-01-11 03:42:13,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:42:13,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727111877] [2022-01-11 03:42:13,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:42:13,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:42:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:42:14,229 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-01-11 03:42:14,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:42:14,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727111877] [2022-01-11 03:42:14,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727111877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:42:14,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:42:14,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:42:14,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116956106] [2022-01-11 03:42:14,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:42:14,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:42:14,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:42:14,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:42:14,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:42:14,231 INFO L87 Difference]: Start difference. First operand 23726 states and 31138 transitions. Second operand has 3 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:17,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:42:17,776 INFO L93 Difference]: Finished difference Result 53994 states and 72212 transitions. [2022-01-11 03:42:17,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:42:17,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 0 states have call successors, (0), 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 922 [2022-01-11 03:42:17,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:42:17,828 INFO L225 Difference]: With dead ends: 53994 [2022-01-11 03:42:17,829 INFO L226 Difference]: Without dead ends: 30270 [2022-01-11 03:42:17,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:42:17,855 INFO L933 BasicCegarLoop]: 1507 mSDtfsCounter, 775 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2761 mSolverCounterSat, 540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 3301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 540 IncrementalHoareTripleChecker+Valid, 2761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-11 03:42:17,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [775 Valid, 1516 Invalid, 3301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [540 Valid, 2761 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-01-11 03:42:17,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30270 states. [2022-01-11 03:42:18,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30270 to 28634. [2022-01-11 03:42:18,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28634 states, 28633 states have (on average 1.291167533964307) internal successors, (36970), 28633 states have internal predecessors, (36970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:18,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28634 states to 28634 states and 36970 transitions. [2022-01-11 03:42:18,237 INFO L78 Accepts]: Start accepts. Automaton has 28634 states and 36970 transitions. Word has length 922 [2022-01-11 03:42:18,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:42:18,237 INFO L470 AbstractCegarLoop]: Abstraction has 28634 states and 36970 transitions. [2022-01-11 03:42:18,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:18,237 INFO L276 IsEmpty]: Start isEmpty. Operand 28634 states and 36970 transitions. [2022-01-11 03:42:18,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 929 [2022-01-11 03:42:18,297 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:42:18,443 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:42:18,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 03:42:18,443 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:42:18,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:42:18,444 INFO L85 PathProgramCache]: Analyzing trace with hash 802862612, now seen corresponding path program 1 times [2022-01-11 03:42:18,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:42:18,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576607788] [2022-01-11 03:42:18,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:42:18,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:42:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:42:18,761 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-01-11 03:42:18,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:42:18,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576607788] [2022-01-11 03:42:18,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576607788] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:42:18,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:42:18,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:42:18,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817456795] [2022-01-11 03:42:18,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:42:18,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:42:18,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:42:18,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:42:18,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:42:18,764 INFO L87 Difference]: Start difference. First operand 28634 states and 36970 transitions. Second operand has 3 states, 3 states have (on average 280.6666666666667) internal successors, (842), 3 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:22,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:42:22,062 INFO L93 Difference]: Finished difference Result 61356 states and 78352 transitions. [2022-01-11 03:42:22,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:42:22,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 280.6666666666667) internal successors, (842), 3 states have internal predecessors, (842), 0 states have call successors, (0), 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 928 [2022-01-11 03:42:22,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:42:22,112 INFO L225 Difference]: With dead ends: 61356 [2022-01-11 03:42:22,112 INFO L226 Difference]: Without dead ends: 29452 [2022-01-11 03:42:22,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:42:22,136 INFO L933 BasicCegarLoop]: 1395 mSDtfsCounter, 928 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 1006 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 2981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1006 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-11 03:42:22,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [928 Valid, 1403 Invalid, 2981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1006 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-11 03:42:22,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29452 states. [2022-01-11 03:42:22,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29452 to 26998. [2022-01-11 03:42:22,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26998 states, 26997 states have (on average 1.1789458087935696) internal successors, (31828), 26997 states have internal predecessors, (31828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:22,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26998 states to 26998 states and 31828 transitions. [2022-01-11 03:42:22,465 INFO L78 Accepts]: Start accepts. Automaton has 26998 states and 31828 transitions. Word has length 928 [2022-01-11 03:42:22,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:42:22,465 INFO L470 AbstractCegarLoop]: Abstraction has 26998 states and 31828 transitions. [2022-01-11 03:42:22,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 280.6666666666667) internal successors, (842), 3 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:22,466 INFO L276 IsEmpty]: Start isEmpty. Operand 26998 states and 31828 transitions. [2022-01-11 03:42:22,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 950 [2022-01-11 03:42:22,489 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:42:22,489 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:42:22,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 03:42:22,489 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:42:22,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:42:22,490 INFO L85 PathProgramCache]: Analyzing trace with hash -832434247, now seen corresponding path program 1 times [2022-01-11 03:42:22,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:42:22,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991108900] [2022-01-11 03:42:22,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:42:22,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:42:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:42:22,877 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-01-11 03:42:22,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:42:22,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991108900] [2022-01-11 03:42:22,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991108900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:42:22,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:42:22,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 03:42:22,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778474870] [2022-01-11 03:42:22,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:42:22,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:42:22,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:42:22,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:42:22,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:42:22,879 INFO L87 Difference]: Start difference. First operand 26998 states and 31828 transitions. Second operand has 3 states, 3 states have (on average 269.6666666666667) internal successors, (809), 2 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:26,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:42:26,052 INFO L93 Difference]: Finished difference Result 59720 states and 70424 transitions. [2022-01-11 03:42:26,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:42:26,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 269.6666666666667) internal successors, (809), 2 states have internal predecessors, (809), 0 states have call successors, (0), 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 949 [2022-01-11 03:42:26,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:42:26,193 INFO L225 Difference]: With dead ends: 59720 [2022-01-11 03:42:26,193 INFO L226 Difference]: Without dead ends: 32724 [2022-01-11 03:42:26,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:42:26,205 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 971 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2278 mSolverCounterSat, 963 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 3241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 963 IncrementalHoareTripleChecker+Valid, 2278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-11 03:42:26,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [971 Valid, 227 Invalid, 3241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [963 Valid, 2278 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-11 03:42:26,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32724 states. [2022-01-11 03:42:26,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32724 to 31906. [2022-01-11 03:42:26,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31906 states, 31905 states have (on average 1.1476884500861935) internal successors, (36617), 31905 states have internal predecessors, (36617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:26,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31906 states to 31906 states and 36617 transitions. [2022-01-11 03:42:26,505 INFO L78 Accepts]: Start accepts. Automaton has 31906 states and 36617 transitions. Word has length 949 [2022-01-11 03:42:26,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:42:26,505 INFO L470 AbstractCegarLoop]: Abstraction has 31906 states and 36617 transitions. [2022-01-11 03:42:26,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 269.6666666666667) internal successors, (809), 2 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:26,506 INFO L276 IsEmpty]: Start isEmpty. Operand 31906 states and 36617 transitions. [2022-01-11 03:42:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1003 [2022-01-11 03:42:26,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:42:26,538 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:42:26,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 03:42:26,538 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:42:26,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:42:26,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1222443242, now seen corresponding path program 1 times [2022-01-11 03:42:26,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:42:26,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707197061] [2022-01-11 03:42:26,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:42:26,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:42:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:42:26,874 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 261 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-01-11 03:42:26,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:42:26,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707197061] [2022-01-11 03:42:26,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707197061] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:42:26,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:42:26,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 03:42:26,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630473442] [2022-01-11 03:42:26,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:42:26,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:42:26,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:42:26,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:42:26,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:42:26,876 INFO L87 Difference]: Start difference. First operand 31906 states and 36617 transitions. Second operand has 3 states, 3 states have (on average 301.0) internal successors, (903), 2 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:30,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:42:30,228 INFO L93 Difference]: Finished difference Result 80170 states and 92944 transitions. [2022-01-11 03:42:30,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:42:30,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 301.0) internal successors, (903), 2 states have internal predecessors, (903), 0 states have call successors, (0), 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 1002 [2022-01-11 03:42:30,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:42:30,286 INFO L225 Difference]: With dead ends: 80170 [2022-01-11 03:42:30,286 INFO L226 Difference]: Without dead ends: 48266 [2022-01-11 03:42:30,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:42:30,314 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 911 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 975 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 3145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 975 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-11 03:42:30,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [911 Valid, 330 Invalid, 3145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [975 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-11 03:42:30,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48266 states. [2022-01-11 03:42:30,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48266 to 46630. [2022-01-11 03:42:30,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46630 states, 46629 states have (on average 1.131784940702138) internal successors, (52774), 46629 states have internal predecessors, (52774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:30,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46630 states to 46630 states and 52774 transitions. [2022-01-11 03:42:30,869 INFO L78 Accepts]: Start accepts. Automaton has 46630 states and 52774 transitions. Word has length 1002 [2022-01-11 03:42:30,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:42:30,869 INFO L470 AbstractCegarLoop]: Abstraction has 46630 states and 52774 transitions. [2022-01-11 03:42:30,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 301.0) internal successors, (903), 2 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:30,870 INFO L276 IsEmpty]: Start isEmpty. Operand 46630 states and 52774 transitions. [2022-01-11 03:42:30,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1061 [2022-01-11 03:42:30,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:42:30,904 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:42:30,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 03:42:30,904 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:42:30,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:42:30,905 INFO L85 PathProgramCache]: Analyzing trace with hash 532544356, now seen corresponding path program 1 times [2022-01-11 03:42:30,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:42:30,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180547995] [2022-01-11 03:42:30,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:42:30,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:42:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:42:31,249 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-01-11 03:42:31,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:42:31,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180547995] [2022-01-11 03:42:31,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180547995] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:42:31,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:42:31,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 03:42:31,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795332914] [2022-01-11 03:42:31,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:42:31,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:42:31,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:42:31,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:42:31,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:42:31,251 INFO L87 Difference]: Start difference. First operand 46630 states and 52774 transitions. Second operand has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 2 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:34,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:42:34,779 INFO L93 Difference]: Finished difference Result 128432 states and 146020 transitions. [2022-01-11 03:42:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:42:34,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 2 states have internal predecessors, (886), 0 states have call successors, (0), 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 1060 [2022-01-11 03:42:34,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:42:34,869 INFO L225 Difference]: With dead ends: 128432 [2022-01-11 03:42:34,869 INFO L226 Difference]: Without dead ends: 82622 [2022-01-11 03:42:34,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:42:34,904 INFO L933 BasicCegarLoop]: 529 mSDtfsCounter, 879 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2089 mSolverCounterSat, 1053 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 3142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1053 IncrementalHoareTripleChecker+Valid, 2089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-11 03:42:34,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [879 Valid, 536 Invalid, 3142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1053 Valid, 2089 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-11 03:42:34,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82622 states. [2022-01-11 03:42:35,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82622 to 79350. [2022-01-11 03:42:35,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79350 states, 79349 states have (on average 1.1039332568778435) internal successors, (87596), 79349 states have internal predecessors, (87596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:35,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79350 states to 79350 states and 87596 transitions. [2022-01-11 03:42:35,798 INFO L78 Accepts]: Start accepts. Automaton has 79350 states and 87596 transitions. Word has length 1060 [2022-01-11 03:42:35,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:42:35,799 INFO L470 AbstractCegarLoop]: Abstraction has 79350 states and 87596 transitions. [2022-01-11 03:42:35,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 2 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:42:35,799 INFO L276 IsEmpty]: Start isEmpty. Operand 79350 states and 87596 transitions. [2022-01-11 03:42:36,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1283 [2022-01-11 03:42:36,072 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:42:36,073 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:42:36,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 03:42:36,074 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:42:36,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:42:36,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1786340316, now seen corresponding path program 1 times [2022-01-11 03:42:36,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:42:36,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288207369] [2022-01-11 03:42:36,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:42:36,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:42:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:42:36,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 824 proven. 0 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2022-01-11 03:42:36,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:42:36,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288207369] [2022-01-11 03:42:36,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288207369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:42:36,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:42:36,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:42:36,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809997215] [2022-01-11 03:42:36,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:42:36,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:42:36,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:42:36,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:42:36,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:42:36,936 INFO L87 Difference]: Start difference. First operand 79350 states and 87596 transitions. Second operand has 3 states, 3 states have (on average 336.0) internal successors, (1008), 3 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)