/usr/bin/java -Xmx8000000000 -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-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 18:51:22,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 18:51:22,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 18:51:22,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 18:51:22,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 18:51:22,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 18:51:22,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 18:51:22,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 18:51:22,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 18:51:22,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 18:51:22,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 18:51:22,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 18:51:22,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 18:51:22,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 18:51:22,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 18:51:22,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 18:51:22,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 18:51:22,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 18:51:22,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 18:51:22,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 18:51:22,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 18:51:22,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 18:51:22,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 18:51:22,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 18:51:22,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 18:51:22,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 18:51:22,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 18:51:22,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 18:51:22,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 18:51:22,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 18:51:22,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 18:51:22,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 18:51:22,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 18:51:22,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 18:51:22,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 18:51:22,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 18:51:22,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 18:51:22,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 18:51:22,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 18:51:22,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 18:51:22,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 18:51:22,616 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-FA-SemanticLbe.epf [2020-04-17 18:51:22,629 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 18:51:22,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 18:51:22,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 18:51:22,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 18:51:22,631 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 18:51:22,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 18:51:22,631 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 18:51:22,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 18:51:22,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 18:51:22,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 18:51:22,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 18:51:22,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 18:51:22,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 18:51:22,633 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 18:51:22,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 18:51:22,633 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 18:51:22,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 18:51:22,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 18:51:22,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 18:51:22,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 18:51:22,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 18:51:22,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 18:51:22,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 18:51:22,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 18:51:22,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 18:51:22,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 18:51:22,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 18:51:22,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 18:51:22,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 18:51:22,934 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 18:51:22,952 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 18:51:22,955 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 18:51:22,957 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 18:51:22,957 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 18:51:22,958 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-04-17 18:51:23,034 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e72a0ea1/4043d0ccb1ab49fcb5216ff443302c67/FLAG81cee4511 [2020-04-17 18:51:23,594 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 18:51:23,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-04-17 18:51:23,615 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e72a0ea1/4043d0ccb1ab49fcb5216ff443302c67/FLAG81cee4511 [2020-04-17 18:51:23,890 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e72a0ea1/4043d0ccb1ab49fcb5216ff443302c67 [2020-04-17 18:51:23,899 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 18:51:23,917 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 18:51:23,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 18:51:23,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 18:51:23,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 18:51:23,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:51:23" (1/1) ... [2020-04-17 18:51:23,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30bb7608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:23, skipping insertion in model container [2020-04-17 18:51:23,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:51:23" (1/1) ... [2020-04-17 18:51:23,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 18:51:23,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 18:51:24,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:51:24,508 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 18:51:24,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:51:24,646 INFO L208 MainTranslator]: Completed translation [2020-04-17 18:51:24,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:24 WrapperNode [2020-04-17 18:51:24,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 18:51:24,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 18:51:24,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 18:51:24,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 18:51:24,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:24" (1/1) ... [2020-04-17 18:51:24,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:24" (1/1) ... [2020-04-17 18:51:24,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 18:51:24,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 18:51:24,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 18:51:24,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 18:51:24,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:24" (1/1) ... [2020-04-17 18:51:24,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:24" (1/1) ... [2020-04-17 18:51:24,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:24" (1/1) ... [2020-04-17 18:51:24,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:24" (1/1) ... [2020-04-17 18:51:24,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:24" (1/1) ... [2020-04-17 18:51:24,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:24" (1/1) ... [2020-04-17 18:51:24,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:24" (1/1) ... [2020-04-17 18:51:24,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 18:51:24,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 18:51:24,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 18:51:24,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 18:51:24,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:24" (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 [2020-04-17 18:51:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-04-17 18:51:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-04-17 18:51:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 18:51:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 18:51:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 18:51:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 18:51:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 18:51:24,808 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 18:51:25,204 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 18:51:25,205 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-04-17 18:51:25,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:51:25 BoogieIcfgContainer [2020-04-17 18:51:25,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 18:51:25,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 18:51:25,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 18:51:25,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 18:51:25,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 06:51:23" (1/3) ... [2020-04-17 18:51:25,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e246151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:51:25, skipping insertion in model container [2020-04-17 18:51:25,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:24" (2/3) ... [2020-04-17 18:51:25,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e246151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:51:25, skipping insertion in model container [2020-04-17 18:51:25,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:51:25" (3/3) ... [2020-04-17 18:51:25,217 INFO L109 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2020-04-17 18:51:25,228 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 18:51:25,228 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 18:51:25,235 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-04-17 18:51:25,236 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 18:51:25,258 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:25,258 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:25,259 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:25,259 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:25,260 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:25,260 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:25,264 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:25,265 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:25,265 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:25,265 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:25,281 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 18:51:25,298 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 18:51:25,299 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 18:51:25,299 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 18:51:25,299 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 18:51:25,299 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 18:51:25,299 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 18:51:25,299 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 18:51:25,299 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 18:51:25,315 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 82 transitions, 169 flow [2020-04-17 18:51:25,317 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 62 places, 82 transitions, 169 flow [2020-04-17 18:51:25,369 INFO L129 PetriNetUnfolder]: 24/81 cut-off events. [2020-04-17 18:51:25,370 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 18:51:25,378 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 24/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 134 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2020-04-17 18:51:25,382 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 62 places, 82 transitions, 169 flow [2020-04-17 18:51:25,415 INFO L129 PetriNetUnfolder]: 24/81 cut-off events. [2020-04-17 18:51:25,416 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 18:51:25,417 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 24/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 134 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2020-04-17 18:51:25,423 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2400 [2020-04-17 18:51:25,425 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 18:51:26,372 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4233 [2020-04-17 18:51:26,373 INFO L214 etLargeBlockEncoding]: Total number of compositions: 39 [2020-04-17 18:51:26,377 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 51 transitions, 107 flow [2020-04-17 18:51:26,399 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 227 states. [2020-04-17 18:51:26,401 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states. [2020-04-17 18:51:26,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 18:51:26,410 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:51:26,411 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:51:26,411 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:51:26,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:51:26,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1558311805, now seen corresponding path program 1 times [2020-04-17 18:51:26,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:51:26,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754069653] [2020-04-17 18:51:26,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:51:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:51:26,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:51:26,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754069653] [2020-04-17 18:51:26,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:51:26,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 18:51:26,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526376449] [2020-04-17 18:51:26,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-17 18:51:26,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:51:26,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-17 18:51:26,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-17 18:51:26,610 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 2 states. [2020-04-17 18:51:26,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:51:26,637 INFO L93 Difference]: Finished difference Result 198 states and 534 transitions. [2020-04-17 18:51:26,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-17 18:51:26,639 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-04-17 18:51:26,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:51:26,653 INFO L225 Difference]: With dead ends: 198 [2020-04-17 18:51:26,654 INFO L226 Difference]: Without dead ends: 198 [2020-04-17 18:51:26,655 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-17 18:51:26,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-04-17 18:51:26,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-04-17 18:51:26,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-04-17 18:51:26,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 534 transitions. [2020-04-17 18:51:26,718 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 534 transitions. Word has length 9 [2020-04-17 18:51:26,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:51:26,718 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 534 transitions. [2020-04-17 18:51:26,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-17 18:51:26,719 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 534 transitions. [2020-04-17 18:51:26,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 18:51:26,720 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:51:26,720 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:51:26,721 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:51:26,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:51:26,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1031484476, now seen corresponding path program 1 times [2020-04-17 18:51:26,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:51:26,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709511708] [2020-04-17 18:51:26,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:51:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:51:26,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:51:26,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709511708] [2020-04-17 18:51:26,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:51:26,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 18:51:26,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578411342] [2020-04-17 18:51:26,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 18:51:26,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:51:26,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 18:51:26,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:51:26,800 INFO L87 Difference]: Start difference. First operand 198 states and 534 transitions. Second operand 3 states. [2020-04-17 18:51:26,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:51:26,871 INFO L93 Difference]: Finished difference Result 362 states and 979 transitions. [2020-04-17 18:51:26,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 18:51:26,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-04-17 18:51:26,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:51:26,879 INFO L225 Difference]: With dead ends: 362 [2020-04-17 18:51:26,879 INFO L226 Difference]: Without dead ends: 362 [2020-04-17 18:51:26,880 INFO L678 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 [2020-04-17 18:51:26,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-04-17 18:51:26,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 221. [2020-04-17 18:51:26,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-04-17 18:51:26,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 589 transitions. [2020-04-17 18:51:26,926 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 589 transitions. Word has length 11 [2020-04-17 18:51:26,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:51:26,927 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 589 transitions. [2020-04-17 18:51:26,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 18:51:26,927 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 589 transitions. [2020-04-17 18:51:26,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 18:51:26,928 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:51:26,929 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:51:26,929 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:51:26,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:51:26,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1746695160, now seen corresponding path program 1 times [2020-04-17 18:51:26,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:51:26,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926798315] [2020-04-17 18:51:26,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:51:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:51:27,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:51:27,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926798315] [2020-04-17 18:51:27,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:51:27,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 18:51:27,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734309442] [2020-04-17 18:51:27,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 18:51:27,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:51:27,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 18:51:27,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:51:27,015 INFO L87 Difference]: Start difference. First operand 221 states and 589 transitions. Second operand 3 states. [2020-04-17 18:51:27,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:51:27,052 INFO L93 Difference]: Finished difference Result 348 states and 934 transitions. [2020-04-17 18:51:27,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 18:51:27,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-04-17 18:51:27,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:51:27,058 INFO L225 Difference]: With dead ends: 348 [2020-04-17 18:51:27,058 INFO L226 Difference]: Without dead ends: 348 [2020-04-17 18:51:27,059 INFO L678 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 [2020-04-17 18:51:27,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-04-17 18:51:27,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 218. [2020-04-17 18:51:27,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-04-17 18:51:27,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 560 transitions. [2020-04-17 18:51:27,088 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 560 transitions. Word has length 11 [2020-04-17 18:51:27,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:51:27,088 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 560 transitions. [2020-04-17 18:51:27,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 18:51:27,089 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 560 transitions. [2020-04-17 18:51:27,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-17 18:51:27,095 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:51:27,095 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:51:27,095 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:51:27,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:51:27,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1652537164, now seen corresponding path program 1 times [2020-04-17 18:51:27,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:51:27,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151131143] [2020-04-17 18:51:27,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:51:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:51:27,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:51:27,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151131143] [2020-04-17 18:51:27,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:51:27,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:51:27,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858462643] [2020-04-17 18:51:27,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 18:51:27,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:51:27,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 18:51:27,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:51:27,156 INFO L87 Difference]: Start difference. First operand 218 states and 560 transitions. Second operand 3 states. [2020-04-17 18:51:27,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:51:27,204 INFO L93 Difference]: Finished difference Result 220 states and 542 transitions. [2020-04-17 18:51:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 18:51:27,205 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-04-17 18:51:27,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:51:27,207 INFO L225 Difference]: With dead ends: 220 [2020-04-17 18:51:27,207 INFO L226 Difference]: Without dead ends: 220 [2020-04-17 18:51:27,208 INFO L678 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 [2020-04-17 18:51:27,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-04-17 18:51:27,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2020-04-17 18:51:27,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-04-17 18:51:27,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 542 transitions. [2020-04-17 18:51:27,218 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 542 transitions. Word has length 19 [2020-04-17 18:51:27,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:51:27,218 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 542 transitions. [2020-04-17 18:51:27,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 18:51:27,219 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 542 transitions. [2020-04-17 18:51:27,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-17 18:51:27,221 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:51:27,221 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:51:27,221 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:51:27,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:51:27,222 INFO L82 PathProgramCache]: Analyzing trace with hash 952506058, now seen corresponding path program 1 times [2020-04-17 18:51:27,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:51:27,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423814963] [2020-04-17 18:51:27,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:51:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:51:27,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:51:27,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423814963] [2020-04-17 18:51:27,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:51:27,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:51:27,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528617450] [2020-04-17 18:51:27,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 18:51:27,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:51:27,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 18:51:27,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:51:27,294 INFO L87 Difference]: Start difference. First operand 220 states and 542 transitions. Second operand 3 states. [2020-04-17 18:51:27,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:51:27,349 INFO L93 Difference]: Finished difference Result 240 states and 579 transitions. [2020-04-17 18:51:27,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 18:51:27,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-04-17 18:51:27,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:51:27,352 INFO L225 Difference]: With dead ends: 240 [2020-04-17 18:51:27,352 INFO L226 Difference]: Without dead ends: 240 [2020-04-17 18:51:27,352 INFO L678 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 [2020-04-17 18:51:27,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-04-17 18:51:27,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 230. [2020-04-17 18:51:27,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-04-17 18:51:27,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 557 transitions. [2020-04-17 18:51:27,364 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 557 transitions. Word has length 19 [2020-04-17 18:51:27,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:51:27,365 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 557 transitions. [2020-04-17 18:51:27,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 18:51:27,365 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 557 transitions. [2020-04-17 18:51:27,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-17 18:51:27,366 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:51:27,366 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:51:27,367 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:51:27,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:51:27,367 INFO L82 PathProgramCache]: Analyzing trace with hash -687819132, now seen corresponding path program 2 times [2020-04-17 18:51:27,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:51:27,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122909407] [2020-04-17 18:51:27,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:51:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:51:27,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:51:27,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122909407] [2020-04-17 18:51:27,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:51:27,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:51:27,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291477050] [2020-04-17 18:51:27,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 18:51:27,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:51:27,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 18:51:27,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:51:27,434 INFO L87 Difference]: Start difference. First operand 230 states and 557 transitions. Second operand 3 states. [2020-04-17 18:51:27,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:51:27,481 INFO L93 Difference]: Finished difference Result 228 states and 541 transitions. [2020-04-17 18:51:27,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 18:51:27,483 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-04-17 18:51:27,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:51:27,485 INFO L225 Difference]: With dead ends: 228 [2020-04-17 18:51:27,486 INFO L226 Difference]: Without dead ends: 228 [2020-04-17 18:51:27,486 INFO L678 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 [2020-04-17 18:51:27,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-04-17 18:51:27,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2020-04-17 18:51:27,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-04-17 18:51:27,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 541 transitions. [2020-04-17 18:51:27,494 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 541 transitions. Word has length 19 [2020-04-17 18:51:27,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:51:27,494 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 541 transitions. [2020-04-17 18:51:27,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 18:51:27,494 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 541 transitions. [2020-04-17 18:51:27,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-17 18:51:27,495 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:51:27,495 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:51:27,496 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:51:27,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:51:27,496 INFO L82 PathProgramCache]: Analyzing trace with hash -36638496, now seen corresponding path program 3 times [2020-04-17 18:51:27,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:51:27,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509292094] [2020-04-17 18:51:27,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:51:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:51:27,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:51:27,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509292094] [2020-04-17 18:51:27,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:51:27,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:51:27,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083972871] [2020-04-17 18:51:27,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 18:51:27,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:51:27,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 18:51:27,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:51:27,527 INFO L87 Difference]: Start difference. First operand 228 states and 541 transitions. Second operand 3 states. [2020-04-17 18:51:27,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:51:27,583 INFO L93 Difference]: Finished difference Result 194 states and 456 transitions. [2020-04-17 18:51:27,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 18:51:27,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-04-17 18:51:27,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:51:27,584 INFO L225 Difference]: With dead ends: 194 [2020-04-17 18:51:27,585 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 18:51:27,585 INFO L678 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 [2020-04-17 18:51:27,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 18:51:27,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 18:51:27,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 18:51:27,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 18:51:27,586 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-04-17 18:51:27,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:51:27,586 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 18:51:27,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 18:51:27,587 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 18:51:27,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 18:51:27,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 06:51:27 BasicIcfg [2020-04-17 18:51:27,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 18:51:27,594 INFO L168 Benchmark]: Toolchain (without parser) took 3692.71 ms. Allocated memory was 147.3 MB in the beginning and 245.4 MB in the end (delta: 98.0 MB). Free memory was 102.7 MB in the beginning and 178.3 MB in the end (delta: -75.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-04-17 18:51:27,600 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 147.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-17 18:51:27,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.52 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 100.7 MB in the beginning and 162.4 MB in the end (delta: -61.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-04-17 18:51:27,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.99 ms. Allocated memory is still 203.9 MB. Free memory was 162.4 MB in the beginning and 160.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-04-17 18:51:27,604 INFO L168 Benchmark]: Boogie Preprocessor took 30.44 ms. Allocated memory is still 203.9 MB. Free memory was 160.5 MB in the beginning and 159.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-17 18:51:27,605 INFO L168 Benchmark]: RCFGBuilder took 475.22 ms. Allocated memory is still 203.9 MB. Free memory was 159.2 MB in the beginning and 137.4 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-04-17 18:51:27,608 INFO L168 Benchmark]: TraceAbstraction took 2380.99 ms. Allocated memory was 203.9 MB in the beginning and 245.4 MB in the end (delta: 41.4 MB). Free memory was 137.4 MB in the beginning and 178.3 MB in the end (delta: -40.9 MB). Peak memory consumption was 517.0 kB. Max. memory is 7.1 GB. [2020-04-17 18:51:27,621 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 147.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 729.52 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 100.7 MB in the beginning and 162.4 MB in the end (delta: -61.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.99 ms. Allocated memory is still 203.9 MB. Free memory was 162.4 MB in the beginning and 160.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.44 ms. Allocated memory is still 203.9 MB. Free memory was 160.5 MB in the beginning and 159.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 475.22 ms. Allocated memory is still 203.9 MB. Free memory was 159.2 MB in the beginning and 137.4 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2380.99 ms. Allocated memory was 203.9 MB in the beginning and 245.4 MB in the end (delta: 41.4 MB). Free memory was 137.4 MB in the beginning and 178.3 MB in the end (delta: -40.9 MB). Peak memory consumption was 517.0 kB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 62 ProgramPointsBefore, 35 ProgramPointsAfterwards, 82 TransitionsBefore, 51 TransitionsAfterwards, 2400 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 990 VarBasedMoverChecksPositive, 68 VarBasedMoverChecksNegative, 40 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 4233 CheckedPairsTotal, 39 TotalNumberOfCompositions - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 705]: 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, 59 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 373 SDtfs, 152 SDslu, 134 SDs, 0 SdLazy, 98 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 281 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 2248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...