/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/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 17:23:12,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 17:23:12,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 17:23:12,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 17:23:12,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 17:23:12,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 17:23:12,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 17:23:12,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 17:23:12,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 17:23:12,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 17:23:12,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 17:23:12,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 17:23:12,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 17:23:12,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 17:23:12,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 17:23:12,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 17:23:12,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 17:23:12,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 17:23:12,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 17:23:12,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 17:23:12,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 17:23:12,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 17:23:12,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 17:23:12,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 17:23:12,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 17:23:12,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 17:23:12,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 17:23:12,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 17:23:12,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 17:23:12,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 17:23:12,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 17:23:12,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 17:23:12,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 17:23:12,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 17:23:12,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 17:23:12,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 17:23:12,362 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 17:23:12,387 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 17:23:12,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 17:23:12,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 17:23:12,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 17:23:12,389 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 17:23:12,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 17:23:12,389 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 17:23:12,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 17:23:12,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 17:23:12,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 17:23:12,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 17:23:12,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 17:23:12,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 17:23:12,390 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 17:23:12,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 17:23:12,391 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 17:23:12,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 17:23:12,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 17:23:12,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 17:23:12,392 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 17:23:12,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 17:23:12,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 17:23:12,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 17:23:12,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 17:23:12,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 17:23:12,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 17:23:12,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 17:23:12,393 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 17:23:12,393 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 17:23:12,394 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 17:23:12,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 17:23:12,723 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 17:23:12,727 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 17:23:12,729 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 17:23:12,730 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 17:23:12,731 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2020-10-11 17:23:12,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2016c8627/25a77a889e3c40ba879374a849768f4d/FLAGf637f5a49 [2020-10-11 17:23:13,348 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 17:23:13,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2020-10-11 17:23:13,379 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2016c8627/25a77a889e3c40ba879374a849768f4d/FLAGf637f5a49 [2020-10-11 17:23:13,627 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2016c8627/25a77a889e3c40ba879374a849768f4d [2020-10-11 17:23:13,638 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 17:23:13,640 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 17:23:13,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 17:23:13,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 17:23:13,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 17:23:13,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:23:13" (1/1) ... [2020-10-11 17:23:13,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e464cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:23:13, skipping insertion in model container [2020-10-11 17:23:13,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:23:13" (1/1) ... [2020-10-11 17:23:13,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 17:23:13,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 17:23:14,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 17:23:14,169 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 17:23:14,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 17:23:14,352 INFO L208 MainTranslator]: Completed translation [2020-10-11 17:23:14,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:23:14 WrapperNode [2020-10-11 17:23:14,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 17:23:14,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 17:23:14,355 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 17:23:14,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 17:23:14,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:23:14" (1/1) ... [2020-10-11 17:23:14,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:23:14" (1/1) ... [2020-10-11 17:23:14,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 17:23:14,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 17:23:14,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 17:23:14,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 17:23:14,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:23:14" (1/1) ... [2020-10-11 17:23:14,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:23:14" (1/1) ... [2020-10-11 17:23:14,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:23:14" (1/1) ... [2020-10-11 17:23:14,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:23:14" (1/1) ... [2020-10-11 17:23:14,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:23:14" (1/1) ... [2020-10-11 17:23:14,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:23:14" (1/1) ... [2020-10-11 17:23:14,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:23:14" (1/1) ... [2020-10-11 17:23:14,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 17:23:14,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 17:23:14,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 17:23:14,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 17:23:14,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:23:14" (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 [2020-10-11 17:23:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-11 17:23:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-11 17:23:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 17:23:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 17:23:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 17:23:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 17:23:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 17:23:14,558 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 17:23:14,944 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 17:23:14,945 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-11 17:23:14,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:23:14 BoogieIcfgContainer [2020-10-11 17:23:14,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 17:23:14,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 17:23:14,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 17:23:14,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 17:23:14,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:23:13" (1/3) ... [2020-10-11 17:23:14,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b79b2ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:23:14, skipping insertion in model container [2020-10-11 17:23:14,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:23:14" (2/3) ... [2020-10-11 17:23:14,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b79b2ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:23:14, skipping insertion in model container [2020-10-11 17:23:14,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:23:14" (3/3) ... [2020-10-11 17:23:14,955 INFO L111 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2020-10-11 17:23:14,966 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 17:23:14,973 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 17:23:14,974 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 17:23:14,995 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 17:23:14,995 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 17:23:14,995 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 17:23:14,996 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 17:23:14,996 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 17:23:14,996 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 17:23:14,997 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 17:23:14,997 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 17:23:15,000 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 17:23:15,000 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 17:23:15,001 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 17:23:15,001 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 17:23:15,001 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 17:23:15,001 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 17:23:15,021 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-11 17:23:15,038 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 17:23:15,038 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 17:23:15,038 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 17:23:15,038 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 17:23:15,038 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 17:23:15,038 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 17:23:15,038 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 17:23:15,038 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 17:23:15,047 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 42 places, 39 transitions, 83 flow [2020-10-11 17:23:15,090 INFO L129 PetriNetUnfolder]: 1/38 cut-off events. [2020-10-11 17:23:15,090 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 17:23:15,094 INFO L80 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 38 events. 1/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 16 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2020-10-11 17:23:15,094 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 39 transitions, 83 flow [2020-10-11 17:23:15,099 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 27 transitions, 57 flow [2020-10-11 17:23:15,108 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2020-10-11 17:23:15,109 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 17:23:15,109 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 17:23:15,110 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 17:23:15,110 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 17:23:15,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 17:23:15,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1822071689, now seen corresponding path program 1 times [2020-10-11 17:23:15,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 17:23:15,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390511033] [2020-10-11 17:23:15,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 17:23:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 17:23:15,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 17:23:15,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390511033] [2020-10-11 17:23:15,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 17:23:15,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 17:23:15,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384000899] [2020-10-11 17:23:15,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 17:23:15,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 17:23:15,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 17:23:15,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 17:23:15,432 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 39 [2020-10-11 17:23:15,434 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 57 flow. Second operand 3 states. [2020-10-11 17:23:15,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 17:23:15,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 39 [2020-10-11 17:23:15,437 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 17:23:15,456 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2020-10-11 17:23:15,456 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 17:23:15,456 INFO L80 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 32 events. 0/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 2/33 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2020-10-11 17:23:15,458 INFO L132 encePairwiseOnDemand]: 36/39 looper letters, 3 selfloop transitions, 2 changer transitions 1/28 dead transitions. [2020-10-11 17:23:15,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 28 transitions, 71 flow [2020-10-11 17:23:15,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 17:23:15,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 17:23:15,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2020-10-11 17:23:15,474 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8803418803418803 [2020-10-11 17:23:15,475 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 103 transitions. [2020-10-11 17:23:15,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 103 transitions. [2020-10-11 17:23:15,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 17:23:15,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 103 transitions. [2020-10-11 17:23:15,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 17:23:15,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 17:23:15,489 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 17:23:15,491 INFO L185 Difference]: Start difference. First operand has 31 places, 27 transitions, 57 flow. Second operand 3 states and 103 transitions. [2020-10-11 17:23:15,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 28 transitions, 71 flow [2020-10-11 17:23:15,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 28 transitions, 70 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 17:23:15,503 INFO L241 Difference]: Finished difference. Result has 33 places, 27 transitions, 64 flow [2020-10-11 17:23:15,508 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=33, PETRI_TRANSITIONS=27} [2020-10-11 17:23:15,510 INFO L341 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2020-10-11 17:23:15,510 INFO L481 AbstractCegarLoop]: Abstraction has has 33 places, 27 transitions, 64 flow [2020-10-11 17:23:15,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 17:23:15,511 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 17:23:15,511 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 17:23:15,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 17:23:15,512 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 17:23:15,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 17:23:15,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1559863116, now seen corresponding path program 1 times [2020-10-11 17:23:15,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 17:23:15,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565192284] [2020-10-11 17:23:15,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 17:23:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 17:23:15,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 17:23:15,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565192284] [2020-10-11 17:23:15,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 17:23:15,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 17:23:15,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936348938] [2020-10-11 17:23:15,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 17:23:15,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 17:23:15,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 17:23:15,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 17:23:15,728 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 39 [2020-10-11 17:23:15,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 27 transitions, 64 flow. Second operand 4 states. [2020-10-11 17:23:15,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 17:23:15,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 39 [2020-10-11 17:23:15,729 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 17:23:15,747 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2020-10-11 17:23:15,747 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-11 17:23:15,748 INFO L80 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 29 events. 0/29 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 0 based on Foata normal form. 1/29 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-11 17:23:15,748 INFO L132 encePairwiseOnDemand]: 36/39 looper letters, 1 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2020-10-11 17:23:15,748 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 70 flow [2020-10-11 17:23:15,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 17:23:15,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-11 17:23:15,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2020-10-11 17:23:15,752 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2020-10-11 17:23:15,752 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 140 transitions. [2020-10-11 17:23:15,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 140 transitions. [2020-10-11 17:23:15,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 17:23:15,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 140 transitions. [2020-10-11 17:23:15,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-11 17:23:15,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-11 17:23:15,757 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-11 17:23:15,757 INFO L185 Difference]: Start difference. First operand has 33 places, 27 transitions, 64 flow. Second operand 4 states and 140 transitions. [2020-10-11 17:23:15,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 70 flow [2020-10-11 17:23:15,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 27 transitions, 68 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 17:23:15,761 INFO L241 Difference]: Finished difference. Result has 36 places, 27 transitions, 69 flow [2020-10-11 17:23:15,761 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=69, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2020-10-11 17:23:15,762 INFO L341 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2020-10-11 17:23:15,762 INFO L481 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 69 flow [2020-10-11 17:23:15,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 17:23:15,762 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 17:23:15,763 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 17:23:15,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 17:23:15,763 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 17:23:15,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 17:23:15,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1626152978, now seen corresponding path program 2 times [2020-10-11 17:23:15,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 17:23:15,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292883725] [2020-10-11 17:23:15,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 17:23:15,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 17:23:15,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 17:23:15,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292883725] [2020-10-11 17:23:15,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 17:23:15,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 17:23:15,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37050189] [2020-10-11 17:23:15,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 17:23:15,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 17:23:15,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 17:23:15,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 17:23:15,884 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 39 [2020-10-11 17:23:15,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 69 flow. Second operand 3 states. [2020-10-11 17:23:15,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 17:23:15,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 39 [2020-10-11 17:23:15,885 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 17:23:15,892 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2020-10-11 17:23:15,892 INFO L130 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2020-10-11 17:23:15,893 INFO L80 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 21 events. 0/21 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-11 17:23:15,893 INFO L132 encePairwiseOnDemand]: 37/39 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2020-10-11 17:23:15,893 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 21 transitions, 59 flow [2020-10-11 17:23:15,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 17:23:15,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 17:23:15,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2020-10-11 17:23:15,896 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.905982905982906 [2020-10-11 17:23:15,896 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 106 transitions. [2020-10-11 17:23:15,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 106 transitions. [2020-10-11 17:23:15,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 17:23:15,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 106 transitions. [2020-10-11 17:23:15,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 17:23:15,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 17:23:15,899 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 17:23:15,900 INFO L185 Difference]: Start difference. First operand has 36 places, 27 transitions, 69 flow. Second operand 3 states and 106 transitions. [2020-10-11 17:23:15,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 21 transitions, 59 flow [2020-10-11 17:23:15,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 21 transitions, 55 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-11 17:23:15,902 INFO L241 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2020-10-11 17:23:15,902 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2020-10-11 17:23:15,902 INFO L341 CegarLoopForPetriNet]: 31 programPoint places, -2 predicate places. [2020-10-11 17:23:15,902 INFO L481 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2020-10-11 17:23:15,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 17:23:15,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 17:23:15,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:23:15 BasicIcfg [2020-10-11 17:23:15,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 17:23:15,912 INFO L168 Benchmark]: Toolchain (without parser) took 2271.68 ms. Allocated memory was 249.0 MB in the beginning and 309.9 MB in the end (delta: 60.8 MB). Free memory was 203.9 MB in the beginning and 174.8 MB in the end (delta: 29.1 MB). Peak memory consumption was 89.9 MB. Max. memory is 14.2 GB. [2020-10-11 17:23:15,913 INFO L168 Benchmark]: CDTParser took 0.49 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. [2020-10-11 17:23:15,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.43 ms. Allocated memory was 249.0 MB in the beginning and 309.9 MB in the end (delta: 60.8 MB). Free memory was 203.9 MB in the beginning and 265.2 MB in the end (delta: -61.3 MB). Peak memory consumption was 33.0 MB. Max. memory is 14.2 GB. [2020-10-11 17:23:15,915 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.93 ms. Allocated memory is still 309.9 MB. Free memory is still 265.2 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 17:23:15,916 INFO L168 Benchmark]: Boogie Preprocessor took 53.69 ms. Allocated memory is still 309.9 MB. Free memory was 265.2 MB in the beginning and 262.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 17:23:15,917 INFO L168 Benchmark]: RCFGBuilder took 461.09 ms. Allocated memory is still 309.9 MB. Free memory was 262.6 MB in the beginning and 233.1 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 14.2 GB. [2020-10-11 17:23:15,917 INFO L168 Benchmark]: TraceAbstraction took 961.44 ms. Allocated memory is still 309.9 MB. Free memory was 233.1 MB in the beginning and 174.8 MB in the end (delta: 58.3 MB). Peak memory consumption was 58.3 MB. Max. memory is 14.2 GB. [2020-10-11 17:23:15,922 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 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 710.43 ms. Allocated memory was 249.0 MB in the beginning and 309.9 MB in the end (delta: 60.8 MB). Free memory was 203.9 MB in the beginning and 265.2 MB in the end (delta: -61.3 MB). Peak memory consumption was 33.0 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 76.93 ms. Allocated memory is still 309.9 MB. Free memory is still 265.2 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 53.69 ms. Allocated memory is still 309.9 MB. Free memory was 265.2 MB in the beginning and 262.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 461.09 ms. Allocated memory is still 309.9 MB. Free memory was 262.6 MB in the beginning and 233.1 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 14.2 GB. * TraceAbstraction took 961.44 ms. Allocated memory is still 309.9 MB. Free memory was 233.1 MB in the beginning and 174.8 MB in the end (delta: 58.3 MB). Peak memory consumption was 58.3 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 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: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 21 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=2, 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, 0.3s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 2579 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...