/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerCInline.xml -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-syntacticLbe.epf -i ../../../trunk/examples/svcomp/pthread-lit/qw2004-2b.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 12:34:07,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:34:07,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:34:08,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 12:34:08,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 12:34:08,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 12:34:08,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 12:34:08,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 12:34:08,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 12:34:08,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 12:34:08,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 12:34:08,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 12:34:08,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:34:08,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:34:08,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:34:08,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:34:08,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:34:08,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:34:08,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:34:08,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:34:08,093 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:34:08,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:34:08,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:34:08,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:34:08,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:34:08,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 12:34:08,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 12:34:08,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 12:34:08,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 12:34:08,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 12:34:08,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 12:34:08,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 12:34:08,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 12:34:08,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 12:34:08,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 12:34:08,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 12:34:08,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 12:34:08,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 12:34:08,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 12:34:08,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 12:34:08,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 12:34:08,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 12:34:08,144 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-syntacticLbe.epf [2022-07-22 12:34:08,201 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:34:08,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:34:08,203 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:34:08,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:34:08,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:34:08,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:34:08,205 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:34:08,206 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 12:34:08,206 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 12:34:08,207 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 12:34:08,208 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 12:34:08,208 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 12:34:08,208 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 12:34:08,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:34:08,209 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:34:08,209 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 12:34:08,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:34:08,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:34:08,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:34:08,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 12:34:08,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 12:34:08,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 12:34:08,211 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:34:08,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:34:08,211 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 12:34:08,211 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:34:08,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 12:34:08,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:34:08,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:34:08,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:34:08,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:34:08,214 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-07-22 12:34:08,215 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 12:34:08,216 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 12:34:08,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:34:08,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:34:08,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:34:08,697 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:34:08,697 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:34:08,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-2b.i [2022-07-22 12:34:08,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4020eb94f/5241970103124567a6878966cf2f2b87/FLAG703d89a1d [2022-07-22 12:34:09,600 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:34:09,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2b.i [2022-07-22 12:34:09,632 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4020eb94f/5241970103124567a6878966cf2f2b87/FLAG703d89a1d [2022-07-22 12:34:09,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4020eb94f/5241970103124567a6878966cf2f2b87 [2022-07-22 12:34:09,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:34:09,916 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 12:34:09,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:34:09,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:34:09,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:34:09,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:34:09" (1/1) ... [2022-07-22 12:34:09,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e2655e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:09, skipping insertion in model container [2022-07-22 12:34:09,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:34:09" (1/1) ... [2022-07-22 12:34:09,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:34:10,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:34:10,549 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2b.i[30003,30016] [2022-07-22 12:34:10,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:34:10,594 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:34:10,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2b.i[30003,30016] [2022-07-22 12:34:10,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:34:10,719 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:34:10,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:10 WrapperNode [2022-07-22 12:34:10,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:34:10,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:34:10,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:34:10,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:34:10,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:10" (1/1) ... [2022-07-22 12:34:10,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:10" (1/1) ... [2022-07-22 12:34:10,778 INFO L137 Inliner]: procedures = 175, calls = 36, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 114 [2022-07-22 12:34:10,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:34:10,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:34:10,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:34:10,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:34:10,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:10" (1/1) ... [2022-07-22 12:34:10,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:10" (1/1) ... [2022-07-22 12:34:10,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:10" (1/1) ... [2022-07-22 12:34:10,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:10" (1/1) ... [2022-07-22 12:34:10,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:10" (1/1) ... [2022-07-22 12:34:10,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:10" (1/1) ... [2022-07-22 12:34:10,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:10" (1/1) ... [2022-07-22 12:34:10,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:34:10,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:34:10,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:34:10,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:34:10,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:10" (1/1) ... [2022-07-22 12:34:10,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:34:10,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:34:10,863 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 12:34:10,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 12:34:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2022-07-22 12:34:10,988 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2022-07-22 12:34:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 12:34:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-22 12:34:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:34:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 12:34:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 12:34:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:34:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-22 12:34:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:34:10,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:34:10,992 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-22 12:34:11,126 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:34:11,132 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:34:11,414 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:34:11,448 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:34:11,449 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 12:34:11,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:34:11 BoogieIcfgContainer [2022-07-22 12:34:11,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:34:11,454 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 12:34:11,454 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 12:34:11,460 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 12:34:11,461 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:34:11,461 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 12:34:09" (1/3) ... [2022-07-22 12:34:11,462 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@205cd560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:34:11, skipping insertion in model container [2022-07-22 12:34:11,463 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:34:11,463 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:10" (2/3) ... [2022-07-22 12:34:11,463 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@205cd560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:34:11, skipping insertion in model container [2022-07-22 12:34:11,464 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:34:11,464 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:34:11" (3/3) ... [2022-07-22 12:34:11,465 INFO L322 chiAutomizerObserver]: Analyzing ICFG qw2004-2b.i [2022-07-22 12:34:11,542 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-22 12:34:11,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 117 transitions, 239 flow [2022-07-22 12:34:11,644 INFO L129 PetriNetUnfolder]: 6/115 cut-off events. [2022-07-22 12:34:11,645 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 12:34:11,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 115 events. 6/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 116 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-07-22 12:34:11,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 117 transitions, 239 flow [2022-07-22 12:34:11,665 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 115 transitions, 233 flow [2022-07-22 12:34:11,671 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-07-22 12:34:11,683 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 115 transitions, 233 flow [2022-07-22 12:34:11,687 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 115 transitions, 233 flow [2022-07-22 12:34:11,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 115 transitions, 233 flow [2022-07-22 12:34:11,721 INFO L129 PetriNetUnfolder]: 6/115 cut-off events. [2022-07-22 12:34:11,721 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 12:34:11,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 115 events. 6/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 122 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-07-22 12:34:11,731 INFO L116 LiptonReduction]: Number of co-enabled transitions 3600 [2022-07-22 12:34:14,588 INFO L131 LiptonReduction]: Checked pairs total: 4110 [2022-07-22 12:34:14,589 INFO L133 LiptonReduction]: Total number of compositions: 126 [2022-07-22 12:34:14,617 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 12:34:14,617 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 12:34:14,618 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 12:34:14,618 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 12:34:14,618 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 12:34:14,618 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 12:34:14,618 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 12:34:14,619 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 12:34:14,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-22 12:34:14,690 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 12:34:14,691 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 12:34:14,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 12:34:14 BoogieIcfgContainer [2022-07-22 12:34:14,698 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 12:34:14,703 INFO L158 Benchmark]: Toolchain (without parser) took 4790.33ms. Allocated memory was 151.0MB in the beginning and 181.4MB in the end (delta: 30.4MB). Free memory was 124.4MB in the beginning and 154.9MB in the end (delta: -30.5MB). Peak memory consumption was 808.0kB. Max. memory is 8.0GB. [2022-07-22 12:34:14,704 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 151.0MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 12:34:14,706 INFO L158 Benchmark]: CACSL2BoogieTranslator took 801.58ms. Allocated memory is still 151.0MB. Free memory was 124.1MB in the beginning and 104.9MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-07-22 12:34:14,707 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.59ms. Allocated memory is still 151.0MB. Free memory was 104.9MB in the beginning and 102.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-22 12:34:14,709 INFO L158 Benchmark]: Boogie Preprocessor took 33.26ms. Allocated memory is still 151.0MB. Free memory was 102.8MB in the beginning and 101.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-22 12:34:14,711 INFO L158 Benchmark]: RCFGBuilder took 639.43ms. Allocated memory is still 151.0MB. Free memory was 101.3MB in the beginning and 122.2MB in the end (delta: -20.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-07-22 12:34:14,712 INFO L158 Benchmark]: BuchiAutomizer took 3245.08ms. Allocated memory was 151.0MB in the beginning and 181.4MB in the end (delta: 30.4MB). Free memory was 121.7MB in the beginning and 154.9MB in the end (delta: -33.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 12:34:14,729 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 151.0MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 801.58ms. Allocated memory is still 151.0MB. Free memory was 124.1MB in the beginning and 104.9MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.59ms. Allocated memory is still 151.0MB. Free memory was 104.9MB in the beginning and 102.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.26ms. Allocated memory is still 151.0MB. Free memory was 102.8MB in the beginning and 101.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 639.43ms. Allocated memory is still 151.0MB. Free memory was 101.3MB in the beginning and 122.2MB in the end (delta: -20.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * BuchiAutomizer took 3245.08ms. Allocated memory was 151.0MB in the beginning and 181.4MB in the end (delta: 30.4MB). Free memory was 121.7MB in the beginning and 154.9MB in the end (delta: -33.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition. There is no loop in your program. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 0 iterations. TraceHistogramMax:0. Analysis of lassos took 0.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 3.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 113 PlacesBefore, 18 PlacesAfterwards, 115 TransitionsBefore, 17 TransitionsAfterwards, 3600 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 3 ChoiceCompositions, 126 TotalNumberOfCompositions, 4110 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3329, positive: 3227, positive conditional: 0, positive unconditional: 3227, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2108, positive: 2069, positive conditional: 0, positive unconditional: 2069, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3329, positive: 1158, positive conditional: 0, positive unconditional: 1158, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 2108, unknown conditional: 0, unknown unconditional: 2108] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 RESULT: Ultimate proved your program to be correct! [2022-07-22 12:34:14,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...