/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/16_peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 00:27:02,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 00:27:02,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 00:27:02,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 00:27:02,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 00:27:02,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 00:27:02,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 00:27:02,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 00:27:02,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 00:27:02,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 00:27:02,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 00:27:02,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 00:27:02,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 00:27:02,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 00:27:02,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 00:27:02,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 00:27:02,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 00:27:02,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 00:27:02,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 00:27:02,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 00:27:02,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 00:27:02,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 00:27:02,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 00:27:02,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 00:27:02,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 00:27:02,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 00:27:02,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 00:27:02,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 00:27:02,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 00:27:02,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 00:27:02,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 00:27:02,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 00:27:02,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 00:27:02,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 00:27:02,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 00:27:02,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 00:27:02,369 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2020-10-16 00:27:02,390 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 00:27:02,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 00:27:02,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 00:27:02,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 00:27:02,392 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 00:27:02,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 00:27:02,393 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 00:27:02,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 00:27:02,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 00:27:02,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 00:27:02,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 00:27:02,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 00:27:02,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 00:27:02,394 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 00:27:02,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 00:27:02,394 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 00:27:02,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 00:27:02,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 00:27:02,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 00:27:02,395 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 00:27:02,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 00:27:02,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 00:27:02,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 00:27:02,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 00:27:02,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 00:27:02,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 00:27:02,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 00:27:02,397 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 00:27:02,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 00:27:02,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 00:27:02,734 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 00:27:02,737 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 00:27:02,739 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 00:27:02,739 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 00:27:02,740 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/16_peterson.i [2020-10-16 00:27:02,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d2e808d7/d9df0ff4ef1d4e448687bd3b524d4f97/FLAGa69b69b20 [2020-10-16 00:27:03,348 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 00:27:03,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/16_peterson.i [2020-10-16 00:27:03,365 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d2e808d7/d9df0ff4ef1d4e448687bd3b524d4f97/FLAGa69b69b20 [2020-10-16 00:27:03,644 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d2e808d7/d9df0ff4ef1d4e448687bd3b524d4f97 [2020-10-16 00:27:03,654 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 00:27:03,656 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 00:27:03,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 00:27:03,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 00:27:03,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 00:27:03,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:27:03" (1/1) ... [2020-10-16 00:27:03,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@380a1b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:27:03, skipping insertion in model container [2020-10-16 00:27:03,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:27:03" (1/1) ... [2020-10-16 00:27:03,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 00:27:03,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 00:27:04,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 00:27:04,216 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 00:27:04,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 00:27:04,376 INFO L208 MainTranslator]: Completed translation [2020-10-16 00:27:04,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:27:04 WrapperNode [2020-10-16 00:27:04,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 00:27:04,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 00:27:04,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 00:27:04,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 00:27:04,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:27:04" (1/1) ... [2020-10-16 00:27:04,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:27:04" (1/1) ... [2020-10-16 00:27:04,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 00:27:04,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 00:27:04,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 00:27:04,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 00:27:04,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:27:04" (1/1) ... [2020-10-16 00:27:04,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:27:04" (1/1) ... [2020-10-16 00:27:04,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:27:04" (1/1) ... [2020-10-16 00:27:04,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:27:04" (1/1) ... [2020-10-16 00:27:04,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:27:04" (1/1) ... [2020-10-16 00:27:04,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:27:04" (1/1) ... [2020-10-16 00:27:04,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:27:04" (1/1) ... [2020-10-16 00:27:04,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 00:27:04,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 00:27:04,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 00:27:04,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 00:27:04,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:27:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 00:27:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-16 00:27:04,524 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-16 00:27:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 00:27:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 00:27:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 00:27:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 00:27:04,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 00:27:04,527 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 00:27:04,862 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 00:27:04,863 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 00:27:04,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:27:04 BoogieIcfgContainer [2020-10-16 00:27:04,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 00:27:04,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 00:27:04,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 00:27:04,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 00:27:04,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:27:03" (1/3) ... [2020-10-16 00:27:04,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef9ebe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:27:04, skipping insertion in model container [2020-10-16 00:27:04,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:27:04" (2/3) ... [2020-10-16 00:27:04,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef9ebe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:27:04, skipping insertion in model container [2020-10-16 00:27:04,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:27:04" (3/3) ... [2020-10-16 00:27:04,874 INFO L111 eAbstractionObserver]: Analyzing ICFG 16_peterson.i [2020-10-16 00:27:04,886 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 00:27:04,893 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 00:27:04,894 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 00:27:04,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:27:04,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:27:04,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:27:04,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:27:04,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:27:04,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:27:04,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:27:04,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:27:04,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:27:04,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:27:04,953 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 00:27:04,975 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 00:27:04,976 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 00:27:04,976 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 00:27:04,976 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 00:27:04,976 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 00:27:04,976 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 00:27:04,977 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 00:27:04,977 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 00:27:04,994 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 49 places, 51 transitions, 107 flow [2020-10-16 00:27:05,026 INFO L129 PetriNetUnfolder]: 6/50 cut-off events. [2020-10-16 00:27:05,027 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 00:27:05,032 INFO L80 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 50 events. 6/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2020-10-16 00:27:05,032 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 51 transitions, 107 flow [2020-10-16 00:27:05,039 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 50 transitions, 103 flow [2020-10-16 00:27:05,042 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 00:27:05,045 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 50 transitions, 103 flow [2020-10-16 00:27:05,047 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 50 transitions, 103 flow [2020-10-16 00:27:05,048 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 48 places, 50 transitions, 103 flow [2020-10-16 00:27:05,063 INFO L129 PetriNetUnfolder]: 6/50 cut-off events. [2020-10-16 00:27:05,063 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 00:27:05,064 INFO L80 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 50 events. 6/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2020-10-16 00:27:05,066 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-16 00:27:05,934 INFO L132 LiptonReduction]: Checked pairs total: 1287 [2020-10-16 00:27:05,934 INFO L134 LiptonReduction]: Total number of compositions: 37 [2020-10-16 00:27:05,937 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 897 [2020-10-16 00:27:05,945 INFO L129 PetriNetUnfolder]: 4/14 cut-off events. [2020-10-16 00:27:05,945 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 00:27:05,946 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:27:05,946 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 00:27:05,947 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:27:05,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:27:05,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1943364148, now seen corresponding path program 1 times [2020-10-16 00:27:05,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:27:05,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845216521] [2020-10-16 00:27:05,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:27:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:27:06,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 00:27:06,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845216521] [2020-10-16 00:27:06,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 00:27:06,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 00:27:06,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182975112] [2020-10-16 00:27:06,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 00:27:06,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:27:06,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 00:27:06,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 00:27:06,171 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 88 [2020-10-16 00:27:06,173 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 21 transitions, 45 flow. Second operand 2 states. [2020-10-16 00:27:06,173 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:27:06,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 88 [2020-10-16 00:27:06,175 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:27:06,185 INFO L129 PetriNetUnfolder]: 2/18 cut-off events. [2020-10-16 00:27:06,185 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 00:27:06,186 INFO L80 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 18 events. 2/18 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 0 based on Foata normal form. 3/17 useless extension candidates. Maximal degree in co-relation 20. Up to 2 conditions per place. [2020-10-16 00:27:06,187 INFO L132 encePairwiseOnDemand]: 85/88 looper letters, 0 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2020-10-16 00:27:06,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 18 transitions, 39 flow [2020-10-16 00:27:06,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 00:27:06,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-16 00:27:06,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 159 transitions. [2020-10-16 00:27:06,207 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.9034090909090909 [2020-10-16 00:27:06,208 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 159 transitions. [2020-10-16 00:27:06,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 159 transitions. [2020-10-16 00:27:06,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:27:06,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 159 transitions. [2020-10-16 00:27:06,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-16 00:27:06,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-16 00:27:06,224 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-16 00:27:06,227 INFO L185 Difference]: Start difference. First operand has 20 places, 21 transitions, 45 flow. Second operand 2 states and 159 transitions. [2020-10-16 00:27:06,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 18 transitions, 39 flow [2020-10-16 00:27:06,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 18 transitions, 38 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 00:27:06,235 INFO L241 Difference]: Finished difference. Result has 20 places, 18 transitions, 38 flow [2020-10-16 00:27:06,239 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=20, PETRI_TRANSITIONS=18} [2020-10-16 00:27:06,240 INFO L342 CegarLoopForPetriNet]: 20 programPoint places, 0 predicate places. [2020-10-16 00:27:06,240 INFO L481 AbstractCegarLoop]: Abstraction has has 20 places, 18 transitions, 38 flow [2020-10-16 00:27:06,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 00:27:06,240 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:27:06,241 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 00:27:06,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 00:27:06,241 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:27:06,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:27:06,242 INFO L82 PathProgramCache]: Analyzing trace with hash 114699826, now seen corresponding path program 1 times [2020-10-16 00:27:06,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:27:06,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162782067] [2020-10-16 00:27:06,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:27:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:27:06,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 00:27:06,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162782067] [2020-10-16 00:27:06,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 00:27:06,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 00:27:06,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310584934] [2020-10-16 00:27:06,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 00:27:06,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:27:06,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 00:27:06,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 00:27:06,318 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 88 [2020-10-16 00:27:06,319 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 18 transitions, 38 flow. Second operand 3 states. [2020-10-16 00:27:06,319 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:27:06,319 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 88 [2020-10-16 00:27:06,319 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:27:06,350 INFO L129 PetriNetUnfolder]: 9/44 cut-off events. [2020-10-16 00:27:06,351 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 00:27:06,351 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 44 events. 9/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 127 event pairs, 2 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 74. Up to 19 conditions per place. [2020-10-16 00:27:06,352 INFO L132 encePairwiseOnDemand]: 84/88 looper letters, 8 selfloop transitions, 2 changer transitions 0/21 dead transitions. [2020-10-16 00:27:06,352 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 21 transitions, 64 flow [2020-10-16 00:27:06,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 00:27:06,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 00:27:06,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2020-10-16 00:27:06,356 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7840909090909091 [2020-10-16 00:27:06,356 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 207 transitions. [2020-10-16 00:27:06,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 207 transitions. [2020-10-16 00:27:06,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:27:06,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 207 transitions. [2020-10-16 00:27:06,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 00:27:06,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 00:27:06,361 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 00:27:06,361 INFO L185 Difference]: Start difference. First operand has 20 places, 18 transitions, 38 flow. Second operand 3 states and 207 transitions. [2020-10-16 00:27:06,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 21 transitions, 64 flow [2020-10-16 00:27:06,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 21 transitions, 64 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 00:27:06,363 INFO L241 Difference]: Finished difference. Result has 23 places, 19 transitions, 52 flow [2020-10-16 00:27:06,363 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2020-10-16 00:27:06,364 INFO L342 CegarLoopForPetriNet]: 20 programPoint places, 3 predicate places. [2020-10-16 00:27:06,364 INFO L481 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 52 flow [2020-10-16 00:27:06,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 00:27:06,365 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:27:06,365 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 00:27:06,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 00:27:06,365 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:27:06,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:27:06,366 INFO L82 PathProgramCache]: Analyzing trace with hash 98318518, now seen corresponding path program 1 times [2020-10-16 00:27:06,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:27:06,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089007959] [2020-10-16 00:27:06,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:27:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:27:06,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 00:27:06,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089007959] [2020-10-16 00:27:06,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 00:27:06,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 00:27:06,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888209261] [2020-10-16 00:27:06,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 00:27:06,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:27:06,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 00:27:06,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 00:27:06,406 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 88 [2020-10-16 00:27:06,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 52 flow. Second operand 3 states. [2020-10-16 00:27:06,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:27:06,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 88 [2020-10-16 00:27:06,407 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:27:06,438 INFO L129 PetriNetUnfolder]: 4/34 cut-off events. [2020-10-16 00:27:06,438 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 00:27:06,440 INFO L80 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 34 events. 4/34 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 86 event pairs, 2 based on Foata normal form. 6/38 useless extension candidates. Maximal degree in co-relation 69. Up to 10 conditions per place. [2020-10-16 00:27:06,440 INFO L132 encePairwiseOnDemand]: 83/88 looper letters, 5 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2020-10-16 00:27:06,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 19 transitions, 68 flow [2020-10-16 00:27:06,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 00:27:06,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 00:27:06,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions. [2020-10-16 00:27:06,446 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7765151515151515 [2020-10-16 00:27:06,446 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 205 transitions. [2020-10-16 00:27:06,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 205 transitions. [2020-10-16 00:27:06,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:27:06,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 205 transitions. [2020-10-16 00:27:06,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 00:27:06,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 00:27:06,452 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 00:27:06,452 INFO L185 Difference]: Start difference. First operand has 23 places, 19 transitions, 52 flow. Second operand 3 states and 205 transitions. [2020-10-16 00:27:06,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 19 transitions, 68 flow [2020-10-16 00:27:06,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 19 transitions, 66 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 00:27:06,455 INFO L241 Difference]: Finished difference. Result has 25 places, 19 transitions, 63 flow [2020-10-16 00:27:06,455 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2020-10-16 00:27:06,455 INFO L342 CegarLoopForPetriNet]: 20 programPoint places, 5 predicate places. [2020-10-16 00:27:06,456 INFO L481 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 63 flow [2020-10-16 00:27:06,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 00:27:06,456 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:27:06,456 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 00:27:06,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 00:27:06,457 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:27:06,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:27:06,457 INFO L82 PathProgramCache]: Analyzing trace with hash -657830012, now seen corresponding path program 1 times [2020-10-16 00:27:06,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:27:06,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291339855] [2020-10-16 00:27:06,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:27:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:27:06,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 00:27:06,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291339855] [2020-10-16 00:27:06,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 00:27:06,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 00:27:06,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142173591] [2020-10-16 00:27:06,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 00:27:06,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:27:06,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 00:27:06,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 00:27:06,556 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 88 [2020-10-16 00:27:06,557 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 63 flow. Second operand 4 states. [2020-10-16 00:27:06,557 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:27:06,557 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 88 [2020-10-16 00:27:06,557 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:27:06,599 INFO L129 PetriNetUnfolder]: 22/72 cut-off events. [2020-10-16 00:27:06,599 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2020-10-16 00:27:06,600 INFO L80 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 72 events. 22/72 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 220 event pairs, 4 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 151. Up to 16 conditions per place. [2020-10-16 00:27:06,601 INFO L132 encePairwiseOnDemand]: 81/88 looper letters, 9 selfloop transitions, 6 changer transitions 2/27 dead transitions. [2020-10-16 00:27:06,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 113 flow [2020-10-16 00:27:06,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 00:27:06,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 00:27:06,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 259 transitions. [2020-10-16 00:27:06,603 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7357954545454546 [2020-10-16 00:27:06,603 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 259 transitions. [2020-10-16 00:27:06,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 259 transitions. [2020-10-16 00:27:06,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:27:06,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 259 transitions. [2020-10-16 00:27:06,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 00:27:06,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 00:27:06,606 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 00:27:06,606 INFO L185 Difference]: Start difference. First operand has 25 places, 19 transitions, 63 flow. Second operand 4 states and 259 transitions. [2020-10-16 00:27:06,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 113 flow [2020-10-16 00:27:06,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 27 transitions, 107 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 00:27:06,609 INFO L241 Difference]: Finished difference. Result has 29 places, 24 transitions, 103 flow [2020-10-16 00:27:06,609 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=103, PETRI_PLACES=29, PETRI_TRANSITIONS=24} [2020-10-16 00:27:06,609 INFO L342 CegarLoopForPetriNet]: 20 programPoint places, 9 predicate places. [2020-10-16 00:27:06,610 INFO L481 AbstractCegarLoop]: Abstraction has has 29 places, 24 transitions, 103 flow [2020-10-16 00:27:06,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 00:27:06,610 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:27:06,610 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 00:27:06,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 00:27:06,611 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:27:06,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:27:06,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1879737810, now seen corresponding path program 2 times [2020-10-16 00:27:06,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:27:06,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663140380] [2020-10-16 00:27:06,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:27:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:27:06,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 00:27:06,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663140380] [2020-10-16 00:27:06,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 00:27:06,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 00:27:06,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285756583] [2020-10-16 00:27:06,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 00:27:06,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:27:06,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 00:27:06,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 00:27:06,653 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 88 [2020-10-16 00:27:06,653 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 24 transitions, 103 flow. Second operand 4 states. [2020-10-16 00:27:06,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:27:06,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 88 [2020-10-16 00:27:06,654 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:27:06,689 INFO L129 PetriNetUnfolder]: 20/59 cut-off events. [2020-10-16 00:27:06,689 INFO L130 PetriNetUnfolder]: For 20/21 co-relation queries the response was YES. [2020-10-16 00:27:06,690 INFO L80 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 59 events. 20/59 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 131 event pairs, 0 based on Foata normal form. 7/66 useless extension candidates. Maximal degree in co-relation 165. Up to 21 conditions per place. [2020-10-16 00:27:06,690 INFO L132 encePairwiseOnDemand]: 81/88 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2020-10-16 00:27:06,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 30 transitions, 165 flow [2020-10-16 00:27:06,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 00:27:06,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 00:27:06,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 247 transitions. [2020-10-16 00:27:06,692 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7017045454545454 [2020-10-16 00:27:06,692 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 247 transitions. [2020-10-16 00:27:06,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 247 transitions. [2020-10-16 00:27:06,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:27:06,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 247 transitions. [2020-10-16 00:27:06,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 00:27:06,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 00:27:06,695 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 00:27:06,695 INFO L185 Difference]: Start difference. First operand has 29 places, 24 transitions, 103 flow. Second operand 4 states and 247 transitions. [2020-10-16 00:27:06,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 30 transitions, 165 flow [2020-10-16 00:27:06,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 159 flow, removed 3 selfloop flow, removed 0 redundant places. [2020-10-16 00:27:06,697 INFO L241 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2020-10-16 00:27:06,698 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2020-10-16 00:27:06,698 INFO L342 CegarLoopForPetriNet]: 20 programPoint places, 10 predicate places. [2020-10-16 00:27:06,698 INFO L481 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2020-10-16 00:27:06,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 00:27:06,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 00:27:06,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:27:06 BasicIcfg [2020-10-16 00:27:06,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 00:27:06,705 INFO L168 Benchmark]: Toolchain (without parser) took 3048.48 ms. Allocated memory was 249.0 MB in the beginning and 354.9 MB in the end (delta: 105.9 MB). Free memory was 204.1 MB in the beginning and 230.2 MB in the end (delta: -26.1 MB). Peak memory consumption was 79.8 MB. Max. memory is 14.2 GB. [2020-10-16 00:27:06,706 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 249.0 MB. Free memory is still 225.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 00:27:06,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.36 ms. Allocated memory was 249.0 MB in the beginning and 309.3 MB in the end (delta: 60.3 MB). Free memory was 204.1 MB in the beginning and 267.2 MB in the end (delta: -63.1 MB). Peak memory consumption was 32.9 MB. Max. memory is 14.2 GB. [2020-10-16 00:27:06,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.26 ms. Allocated memory is still 309.3 MB. Free memory was 267.2 MB in the beginning and 264.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 00:27:06,709 INFO L168 Benchmark]: Boogie Preprocessor took 26.19 ms. Allocated memory is still 309.3 MB. Free memory was 264.7 MB in the beginning and 262.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 00:27:06,709 INFO L168 Benchmark]: RCFGBuilder took 415.75 ms. Allocated memory is still 309.3 MB. Free memory was 262.2 MB in the beginning and 242.9 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.2 GB. [2020-10-16 00:27:06,710 INFO L168 Benchmark]: TraceAbstraction took 1836.43 ms. Allocated memory was 309.3 MB in the beginning and 354.9 MB in the end (delta: 45.6 MB). Free memory was 242.9 MB in the beginning and 230.2 MB in the end (delta: 12.7 MB). Peak memory consumption was 58.3 MB. Max. memory is 14.2 GB. [2020-10-16 00:27:06,714 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 249.0 MB. Free memory is still 225.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 720.36 ms. Allocated memory was 249.0 MB in the beginning and 309.3 MB in the end (delta: 60.3 MB). Free memory was 204.1 MB in the beginning and 267.2 MB in the end (delta: -63.1 MB). Peak memory consumption was 32.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 44.26 ms. Allocated memory is still 309.3 MB. Free memory was 267.2 MB in the beginning and 264.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.19 ms. Allocated memory is still 309.3 MB. Free memory was 264.7 MB in the beginning and 262.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 415.75 ms. Allocated memory is still 309.3 MB. Free memory was 262.2 MB in the beginning and 242.9 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.2 GB. * TraceAbstraction took 1836.43 ms. Allocated memory was 309.3 MB in the beginning and 354.9 MB in the end (delta: 45.6 MB). Free memory was 242.9 MB in the beginning and 230.2 MB in the end (delta: 12.7 MB). Peak memory consumption was 58.3 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 410 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 62 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.8s, 48 PlacesBefore, 20 PlacesAfterwards, 50 TransitionsBefore, 21 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 37 TotalNumberOfCompositions, 1287 MoverChecksTotal - PositiveResult [Line: 681]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 690]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 38 SDtfs, 12 SDslu, 2 SDs, 0 SdLazy, 42 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 621 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...