/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/weaver/chl-collitem-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 12:42:17,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:42:17,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:42:17,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 12:42:17,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 12:42:17,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 12:42:17,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 12:42:17,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 12:42:17,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 12:42:18,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 12:42:18,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 12:42:18,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 12:42:18,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:42:18,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:42:18,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:42:18,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:42:18,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:42:18,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:42:18,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:42:18,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:42:18,029 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:42:18,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:42:18,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:42:18,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:42:18,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:42:18,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-22 12:42:18,061 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 12:42:18,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:42:18,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:42:18,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:42:18,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:42:18,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:42:18,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:42:18,097 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:42:18,098 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 12:42:18,098 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 12:42:18,098 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 12:42:18,098 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 12:42:18,099 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 12:42:18,099 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 12:42:18,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:42:18,099 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:42:18,100 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 12:42:18,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:42:18,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:42:18,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:42:18,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 12:42:18,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 12:42:18,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 12:42:18,101 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:42:18,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:42:18,102 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 12:42:18,102 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:42:18,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 12:42:18,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:42:18,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:42:18,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:42:18,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:42:18,103 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-07-22 12:42:18,104 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 12:42:18,105 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 12:42:18,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:42:18,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:42:18,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:42:18,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:42:18,506 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:42:18,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c [2022-07-22 12:42:18,589 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13c999bdc/8c4b0168ad304d8d988ee2c6e0f432c0/FLAG71217e707 [2022-07-22 12:42:19,274 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:42:19,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c [2022-07-22 12:42:19,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13c999bdc/8c4b0168ad304d8d988ee2c6e0f432c0/FLAG71217e707 [2022-07-22 12:42:19,644 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13c999bdc/8c4b0168ad304d8d988ee2c6e0f432c0 [2022-07-22 12:42:19,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:42:19,656 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 12:42:19,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:42:19,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:42:19,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:42:19,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:42:19" (1/1) ... [2022-07-22 12:42:19,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c38b096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:19, skipping insertion in model container [2022-07-22 12:42:19,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:42:19" (1/1) ... [2022-07-22 12:42:19,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:42:19,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:42:19,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c[2986,2999] [2022-07-22 12:42:19,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:42:19,905 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:42:19,931 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c[2986,2999] [2022-07-22 12:42:19,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:42:19,952 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:42:19,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:19 WrapperNode [2022-07-22 12:42:19,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:42:19,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:42:19,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:42:19,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:42:19,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:19" (1/1) ... [2022-07-22 12:42:19,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:19" (1/1) ... [2022-07-22 12:42:20,008 INFO L137 Inliner]: procedures = 22, calls = 35, calls flagged for inlining = 15, calls inlined = 29, statements flattened = 234 [2022-07-22 12:42:20,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:42:20,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:42:20,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:42:20,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:42:20,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:19" (1/1) ... [2022-07-22 12:42:20,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:19" (1/1) ... [2022-07-22 12:42:20,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:19" (1/1) ... [2022-07-22 12:42:20,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:19" (1/1) ... [2022-07-22 12:42:20,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:19" (1/1) ... [2022-07-22 12:42:20,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:19" (1/1) ... [2022-07-22 12:42:20,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:19" (1/1) ... [2022-07-22 12:42:20,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:42:20,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:42:20,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:42:20,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:42:20,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:19" (1/1) ... [2022-07-22 12:42:20,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:42:20,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:42:20,132 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 12:42:20,149 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 12:42:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:42:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-22 12:42:20,201 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-22 12:42:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-22 12:42:20,202 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-22 12:42:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:42:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 12:42:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 12:42:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-22 12:42:20,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-22 12:42:20,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:42:20,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:42:20,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 12:42:20,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 12:42:20,206 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 12:42:20,312 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:42:20,314 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:42:20,772 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:42:21,244 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:42:21,244 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 12:42:21,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:42:21 BoogieIcfgContainer [2022-07-22 12:42:21,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:42:21,249 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 12:42:21,249 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 12:42:21,253 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 12:42:21,254 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:42:21,255 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 12:42:19" (1/3) ... [2022-07-22 12:42:21,256 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@422c731d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:42:21, skipping insertion in model container [2022-07-22 12:42:21,256 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:42:21,257 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:19" (2/3) ... [2022-07-22 12:42:21,257 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@422c731d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:42:21, skipping insertion in model container [2022-07-22 12:42:21,257 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:42:21,257 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:42:21" (3/3) ... [2022-07-22 12:42:21,259 INFO L322 chiAutomizerObserver]: Analyzing ICFG chl-collitem-symm.wvr.c [2022-07-22 12:42:21,397 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-22 12:42:21,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 105 transitions, 226 flow [2022-07-22 12:42:21,480 INFO L129 PetriNetUnfolder]: 3/101 cut-off events. [2022-07-22 12:42:21,481 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-22 12:42:21,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 101 events. 3/101 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2022-07-22 12:42:21,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 105 transitions, 226 flow [2022-07-22 12:42:21,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 101 transitions, 214 flow [2022-07-22 12:42:21,495 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-07-22 12:42:21,506 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 101 transitions, 214 flow [2022-07-22 12:42:21,509 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 101 transitions, 214 flow [2022-07-22 12:42:21,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 101 transitions, 214 flow [2022-07-22 12:42:21,535 INFO L129 PetriNetUnfolder]: 3/101 cut-off events. [2022-07-22 12:42:21,536 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-22 12:42:21,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 101 events. 3/101 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2022-07-22 12:42:21,538 INFO L116 LiptonReduction]: Number of co-enabled transitions 108 [2022-07-22 12:42:27,653 INFO L131 LiptonReduction]: Checked pairs total: 170 [2022-07-22 12:42:27,654 INFO L133 LiptonReduction]: Total number of compositions: 105 [2022-07-22 12:42:27,674 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 12:42:27,674 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 12:42:27,674 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 12:42:27,675 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 12:42:27,675 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 12:42:27,675 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 12:42:27,675 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 12:42:27,675 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 12:42:27,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-22 12:42:27,707 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 12:42:27,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 12:42:27,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 12:42:27 BoogieIcfgContainer [2022-07-22 12:42:27,712 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 12:42:27,714 INFO L158 Benchmark]: Toolchain (without parser) took 8061.79ms. Allocated memory was 156.2MB in the beginning and 212.9MB in the end (delta: 56.6MB). Free memory was 130.7MB in the beginning and 70.7MB in the end (delta: 60.0MB). Peak memory consumption was 118.1MB. Max. memory is 8.0GB. [2022-07-22 12:42:27,715 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 156.2MB. Free memory was 126.2MB in the beginning and 126.1MB in the end (delta: 141.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 12:42:27,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.40ms. Allocated memory is still 156.2MB. Free memory was 130.5MB in the beginning and 119.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-07-22 12:42:27,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.69ms. Allocated memory is still 156.2MB. Free memory was 119.5MB in the beginning and 117.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-22 12:42:27,718 INFO L158 Benchmark]: Boogie Preprocessor took 72.07ms. Allocated memory is still 156.2MB. Free memory was 117.1MB in the beginning and 115.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-22 12:42:27,719 INFO L158 Benchmark]: RCFGBuilder took 1165.10ms. Allocated memory is still 156.2MB. Free memory was 115.1MB in the beginning and 82.1MB in the end (delta: 33.0MB). Peak memory consumption was 33.9MB. Max. memory is 8.0GB. [2022-07-22 12:42:27,720 INFO L158 Benchmark]: BuchiAutomizer took 6463.52ms. Allocated memory was 156.2MB in the beginning and 212.9MB in the end (delta: 56.6MB). Free memory was 81.5MB in the beginning and 70.7MB in the end (delta: 10.8MB). Peak memory consumption was 67.5MB. Max. memory is 8.0GB. [2022-07-22 12:42:27,724 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 156.2MB. Free memory was 126.2MB in the beginning and 126.1MB in the end (delta: 141.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 295.40ms. Allocated memory is still 156.2MB. Free memory was 130.5MB in the beginning and 119.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.69ms. Allocated memory is still 156.2MB. Free memory was 119.5MB in the beginning and 117.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.07ms. Allocated memory is still 156.2MB. Free memory was 117.1MB in the beginning and 115.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1165.10ms. Allocated memory is still 156.2MB. Free memory was 115.1MB in the beginning and 82.1MB in the end (delta: 33.0MB). Peak memory consumption was 33.9MB. Max. memory is 8.0GB. * BuchiAutomizer took 6463.52ms. Allocated memory was 156.2MB in the beginning and 212.9MB in the end (delta: 56.6MB). Free memory was 81.5MB in the beginning and 70.7MB in the end (delta: 10.8MB). Peak memory consumption was 67.5MB. 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 6.2s 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: 6.2s - 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: 6.1s, 105 PlacesBefore, 18 PlacesAfterwards, 101 TransitionsBefore, 11 TransitionsAfterwards, 108 CoEnabledTransitionPairs, 7 FixpointIterations, 79 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 0 ConcurrentYvCompositions, 3 ChoiceCompositions, 105 TotalNumberOfCompositions, 170 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170, positive: 170, positive conditional: 0, positive unconditional: 170, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 64, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 170, positive: 106, positive conditional: 0, positive unconditional: 106, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 64, unknown conditional: 0, unknown unconditional: 64] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2022-07-22 12:42:27,778 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...