./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-ext/04_incdec_cas.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-ext/04_incdec_cas.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 11:28:49,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 11:28:49,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 11:28:49,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 11:28:49,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 11:28:49,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 11:28:49,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 11:28:49,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 11:28:49,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 11:28:49,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 11:28:49,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 11:28:49,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 11:28:49,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 11:28:49,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 11:28:49,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 11:28:49,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 11:28:49,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 11:28:49,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 11:28:49,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 11:28:49,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 11:28:49,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 11:28:49,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 11:28:49,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 11:28:49,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 11:28:49,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 11:28:49,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 11:28:49,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 11:28:49,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 11:28:49,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 11:28:49,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 11:28:49,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 11:28:49,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 11:28:49,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 11:28:49,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 11:28:49,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 11:28:49,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 11:28:49,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 11:28:49,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 11:28:49,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 11:28:49,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 11:28:49,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 11:28:49,180 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 11:28:49,211 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 11:28:49,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 11:28:49,212 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 11:28:49,212 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 11:28:49,213 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 11:28:49,213 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 11:28:49,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 11:28:49,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 11:28:49,214 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 11:28:49,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 11:28:49,215 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 11:28:49,215 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 11:28:49,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 11:28:49,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 11:28:49,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 11:28:49,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 11:28:49,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 11:28:49,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 11:28:49,216 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 11:28:49,216 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 11:28:49,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 11:28:49,217 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 11:28:49,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 11:28:49,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 11:28:49,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 11:28:49,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 11:28:49,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 11:28:49,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 11:28:49,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 11:28:49,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 11:28:49,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 11:28:49,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 11:28:49,219 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 11:28:49,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 11:28:49,219 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 11:28:49,219 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 11:28:49,219 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 11:28:49,219 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 11:28:49,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 11:28:49,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 11:28:49,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 11:28:49,515 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 11:28:49,516 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 11:28:49,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/04_incdec_cas.i [2023-08-31 11:28:50,777 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 11:28:51,034 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 11:28:51,034 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.i [2023-08-31 11:28:51,054 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/150505493/a8184ce214d14138ac78f657593002a0/FLAG4c6678b9e [2023-08-31 11:28:51,075 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/150505493/a8184ce214d14138ac78f657593002a0 [2023-08-31 11:28:51,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 11:28:51,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 11:28:51,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 11:28:51,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 11:28:51,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 11:28:51,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 11:28:51" (1/1) ... [2023-08-31 11:28:51,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dd5d511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:28:51, skipping insertion in model container [2023-08-31 11:28:51,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 11:28:51" (1/1) ... [2023-08-31 11:28:51,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 11:28:51,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 11:28:51,429 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.i[30285,30298] [2023-08-31 11:28:51,434 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.i[30729,30742] [2023-08-31 11:28:51,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 11:28:51,446 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 11:28:51,477 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.i[30285,30298] [2023-08-31 11:28:51,483 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.i[30729,30742] [2023-08-31 11:28:51,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 11:28:51,539 INFO L208 MainTranslator]: Completed translation [2023-08-31 11:28:51,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:28:51 WrapperNode [2023-08-31 11:28:51,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 11:28:51,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 11:28:51,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 11:28:51,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 11:28:51,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:28:51" (1/1) ... [2023-08-31 11:28:51,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:28:51" (1/1) ... [2023-08-31 11:28:51,622 INFO L138 Inliner]: procedures = 172, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 265 [2023-08-31 11:28:51,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 11:28:51,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 11:28:51,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 11:28:51,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 11:28:51,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:28:51" (1/1) ... [2023-08-31 11:28:51,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:28:51" (1/1) ... [2023-08-31 11:28:51,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:28:51" (1/1) ... [2023-08-31 11:28:51,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:28:51" (1/1) ... [2023-08-31 11:28:51,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:28:51" (1/1) ... [2023-08-31 11:28:51,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:28:51" (1/1) ... [2023-08-31 11:28:51,679 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:28:51" (1/1) ... [2023-08-31 11:28:51,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:28:51" (1/1) ... [2023-08-31 11:28:51,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 11:28:51,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 11:28:51,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 11:28:51,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 11:28:51,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:28:51" (1/1) ... [2023-08-31 11:28:51,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 11:28:51,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 11:28:51,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 11:28:51,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 11:28:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 11:28:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-31 11:28:51,774 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-31 11:28:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 11:28:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 11:28:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 11:28:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 11:28:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 11:28:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 11:28:51,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 11:28:51,776 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 11:28:51,882 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 11:28:51,884 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 11:28:52,450 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 11:28:52,793 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 11:28:52,794 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-31 11:28:52,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:28:52 BoogieIcfgContainer [2023-08-31 11:28:52,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 11:28:52,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 11:28:52,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 11:28:52,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 11:28:52,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 11:28:51" (1/3) ... [2023-08-31 11:28:52,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4b90c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 11:28:52, skipping insertion in model container [2023-08-31 11:28:52,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:28:51" (2/3) ... [2023-08-31 11:28:52,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4b90c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 11:28:52, skipping insertion in model container [2023-08-31 11:28:52,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:28:52" (3/3) ... [2023-08-31 11:28:52,804 INFO L112 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas.i [2023-08-31 11:28:52,810 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 11:28:52,818 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 11:28:52,819 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-31 11:28:52,819 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 11:28:52,940 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 11:28:52,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 134 transitions, 273 flow [2023-08-31 11:28:53,059 INFO L130 PetriNetUnfolder]: 9/144 cut-off events. [2023-08-31 11:28:53,060 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 11:28:53,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 144 events. 9/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 316 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 113. Up to 4 conditions per place. [2023-08-31 11:28:53,066 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 134 transitions, 273 flow [2023-08-31 11:28:53,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 134 transitions, 273 flow [2023-08-31 11:28:53,077 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 11:28:53,089 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 134 transitions, 273 flow [2023-08-31 11:28:53,093 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 134 transitions, 273 flow [2023-08-31 11:28:53,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 134 transitions, 273 flow [2023-08-31 11:28:53,146 INFO L130 PetriNetUnfolder]: 9/144 cut-off events. [2023-08-31 11:28:53,146 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 11:28:53,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 144 events. 9/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 316 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 113. Up to 4 conditions per place. [2023-08-31 11:28:53,151 INFO L119 LiptonReduction]: Number of co-enabled transitions 2626 [2023-08-31 11:29:11,516 WARN L222 SmtUtils]: Spent 14.96s on a formula simplification. DAG size of input: 144 DAG size of output: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:29:18,602 WARN L222 SmtUtils]: Spent 7.08s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:29:36,089 WARN L222 SmtUtils]: Spent 17.48s on a formula simplification. DAG size of input: 130 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:29:45,178 WARN L222 SmtUtils]: Spent 9.09s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:29:53,049 WARN L222 SmtUtils]: Spent 7.56s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:30:00,448 WARN L222 SmtUtils]: Spent 7.40s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:30:08,261 WARN L222 SmtUtils]: Spent 7.81s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:30:16,337 WARN L222 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:30:25,475 WARN L222 SmtUtils]: Spent 8.65s on a formula simplification that was a NOOP. DAG size: 143 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:30:34,073 WARN L222 SmtUtils]: Spent 8.60s on a formula simplification that was a NOOP. DAG size: 143 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:30:44,153 WARN L222 SmtUtils]: Spent 10.08s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:30:53,990 WARN L222 SmtUtils]: Spent 9.84s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:31:06,380 WARN L222 SmtUtils]: Spent 12.08s on a formula simplification. DAG size of input: 143 DAG size of output: 130 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:31:12,490 WARN L222 SmtUtils]: Spent 6.11s on a formula simplification that was a NOOP. DAG size: 130 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:31:25,234 WARN L222 SmtUtils]: Spent 12.74s on a formula simplification. DAG size of input: 156 DAG size of output: 137 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:31:31,773 WARN L222 SmtUtils]: Spent 6.54s on a formula simplification that was a NOOP. DAG size: 137 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:31:32,942 INFO L134 LiptonReduction]: Checked pairs total: 3810 [2023-08-31 11:31:32,942 INFO L136 LiptonReduction]: Total number of compositions: 139 [2023-08-31 11:31:32,963 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-31 11:31:32,968 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4cb5118f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 11:31:32,968 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-31 11:31:32,972 INFO L130 PetriNetUnfolder]: 1/18 cut-off events. [2023-08-31 11:31:32,972 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 11:31:32,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:31:32,973 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-31 11:31:32,973 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-31 11:31:32,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:31:32,977 INFO L85 PathProgramCache]: Analyzing trace with hash 2131492116, now seen corresponding path program 1 times [2023-08-31 11:31:32,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:31:32,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958025027] [2023-08-31 11:31:32,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:31:32,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:31:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 11:31:33,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 11:31:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 11:31:33,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 11:31:33,096 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 11:31:33,097 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-31 11:31:33,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 11:31:33,099 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-31 11:31:33,101 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-31 11:31:33,101 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-31 11:31:33,102 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-31 11:31:33,206 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 11:31:33,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 226 places, 236 transitions, 484 flow [2023-08-31 11:31:33,272 INFO L130 PetriNetUnfolder]: 17/258 cut-off events. [2023-08-31 11:31:33,272 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 11:31:33,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 258 events. 17/258 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 973 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 214. Up to 6 conditions per place. [2023-08-31 11:31:33,275 INFO L82 GeneralOperation]: Start removeDead. Operand has 226 places, 236 transitions, 484 flow [2023-08-31 11:31:33,277 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 226 places, 236 transitions, 484 flow [2023-08-31 11:31:33,277 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 11:31:33,278 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 226 places, 236 transitions, 484 flow [2023-08-31 11:31:33,278 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 226 places, 236 transitions, 484 flow [2023-08-31 11:31:33,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 226 places, 236 transitions, 484 flow [2023-08-31 11:31:33,315 INFO L130 PetriNetUnfolder]: 17/258 cut-off events. [2023-08-31 11:31:33,315 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 11:31:33,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 258 events. 17/258 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 973 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 214. Up to 6 conditions per place. [2023-08-31 11:31:33,327 INFO L119 LiptonReduction]: Number of co-enabled transitions 25856 [2023-08-31 11:31:48,953 WARN L222 SmtUtils]: Spent 14.06s on a formula simplification. DAG size of input: 144 DAG size of output: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:31:56,376 WARN L222 SmtUtils]: Spent 7.42s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:32:09,210 WARN L222 SmtUtils]: Spent 12.83s on a formula simplification. DAG size of input: 130 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:32:15,649 WARN L222 SmtUtils]: Spent 6.44s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:32:28,851 WARN L222 SmtUtils]: Spent 11.75s on a formula simplification. DAG size of input: 144 DAG size of output: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:32:34,929 WARN L222 SmtUtils]: Spent 6.08s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:32:47,515 WARN L222 SmtUtils]: Spent 12.58s on a formula simplification. DAG size of input: 130 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:32:53,635 WARN L222 SmtUtils]: Spent 6.12s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:33:01,081 WARN L222 SmtUtils]: Spent 6.99s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:33:07,618 WARN L222 SmtUtils]: Spent 6.54s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:33:16,412 WARN L222 SmtUtils]: Spent 8.79s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:33:25,172 WARN L222 SmtUtils]: Spent 8.76s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:33:32,110 WARN L222 SmtUtils]: Spent 6.88s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:33:38,349 WARN L222 SmtUtils]: Spent 6.24s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:33:46,131 WARN L222 SmtUtils]: Spent 7.78s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:33:53,715 WARN L222 SmtUtils]: Spent 7.58s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:34:06,868 WARN L222 SmtUtils]: Spent 12.81s on a formula simplification. DAG size of input: 141 DAG size of output: 128 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:34:13,613 WARN L222 SmtUtils]: Spent 6.74s on a formula simplification that was a NOOP. DAG size: 128 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:34:26,300 WARN L222 SmtUtils]: Spent 12.68s on a formula simplification. DAG size of input: 154 DAG size of output: 135 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:34:32,794 WARN L222 SmtUtils]: Spent 6.49s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:34:45,782 WARN L222 SmtUtils]: Spent 12.57s on a formula simplification. DAG size of input: 141 DAG size of output: 128 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:34:51,831 WARN L222 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 128 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:35:05,477 WARN L222 SmtUtils]: Spent 13.64s on a formula simplification. DAG size of input: 154 DAG size of output: 135 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:35:12,695 WARN L222 SmtUtils]: Spent 7.22s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:35:14,134 INFO L134 LiptonReduction]: Checked pairs total: 100963 [2023-08-31 11:35:14,134 INFO L136 LiptonReduction]: Total number of compositions: 168 [2023-08-31 11:35:14,136 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-31 11:35:14,137 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4cb5118f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 11:35:14,137 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-31 11:35:14,143 INFO L130 PetriNetUnfolder]: 4/57 cut-off events. [2023-08-31 11:35:14,144 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 11:35:14,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:35:14,144 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-31 11:35:14,144 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-31 11:35:14,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:35:14,145 INFO L85 PathProgramCache]: Analyzing trace with hash 85164185, now seen corresponding path program 1 times [2023-08-31 11:35:14,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:35:14,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562032786] [2023-08-31 11:35:14,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:35:14,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:35:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 11:35:14,168 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 11:35:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 11:35:14,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 11:35:14,187 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 11:35:14,187 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-31 11:35:14,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 11:35:14,188 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-31 11:35:14,188 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-31 11:35:14,189 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-31 11:35:14,189 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-31 11:35:14,306 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 11:35:14,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 338 transitions, 697 flow [2023-08-31 11:35:14,423 INFO L130 PetriNetUnfolder]: 25/372 cut-off events. [2023-08-31 11:35:14,423 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-31 11:35:14,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 372 events. 25/372 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1701 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 315. Up to 8 conditions per place. [2023-08-31 11:35:14,428 INFO L82 GeneralOperation]: Start removeDead. Operand has 323 places, 338 transitions, 697 flow [2023-08-31 11:35:14,431 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 323 places, 338 transitions, 697 flow [2023-08-31 11:35:14,431 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 11:35:14,431 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 323 places, 338 transitions, 697 flow [2023-08-31 11:35:14,432 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 323 places, 338 transitions, 697 flow [2023-08-31 11:35:14,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 338 transitions, 697 flow [2023-08-31 11:35:14,498 INFO L130 PetriNetUnfolder]: 25/372 cut-off events. [2023-08-31 11:35:14,499 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-31 11:35:14,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 372 events. 25/372 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1701 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 315. Up to 8 conditions per place. [2023-08-31 11:35:14,527 INFO L119 LiptonReduction]: Number of co-enabled transitions 69690 [2023-08-31 11:35:27,512 WARN L222 SmtUtils]: Spent 11.83s on a formula simplification. DAG size of input: 137 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:35:33,315 WARN L222 SmtUtils]: Spent 5.80s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:35:49,493 WARN L222 SmtUtils]: Spent 16.18s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:35:57,452 WARN L222 SmtUtils]: Spent 7.96s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:36:11,143 WARN L222 SmtUtils]: Spent 13.33s on a formula simplification. DAG size of input: 144 DAG size of output: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:36:17,633 WARN L222 SmtUtils]: Spent 6.49s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:36:33,487 WARN L222 SmtUtils]: Spent 15.85s on a formula simplification. DAG size of input: 130 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:36:41,771 WARN L222 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:36:55,381 WARN L222 SmtUtils]: Spent 11.03s on a formula simplification. DAG size of input: 137 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:37:01,295 WARN L222 SmtUtils]: Spent 5.91s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:37:15,353 WARN L222 SmtUtils]: Spent 14.06s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:37:21,926 WARN L222 SmtUtils]: Spent 6.57s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:37:33,515 WARN L222 SmtUtils]: Spent 11.15s on a formula simplification. DAG size of input: 144 DAG size of output: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:37:38,846 WARN L222 SmtUtils]: Spent 5.33s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:37:52,843 WARN L222 SmtUtils]: Spent 14.00s on a formula simplification. DAG size of input: 130 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:38:00,432 WARN L222 SmtUtils]: Spent 7.59s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:38:11,363 WARN L222 SmtUtils]: Spent 7.14s on a formula simplification that was a NOOP. DAG size: 128 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:38:18,173 WARN L222 SmtUtils]: Spent 6.81s on a formula simplification that was a NOOP. DAG size: 128 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:38:24,395 WARN L222 SmtUtils]: Spent 6.22s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:38:31,339 WARN L222 SmtUtils]: Spent 6.94s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:38:39,466 WARN L222 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:38:47,191 WARN L222 SmtUtils]: Spent 7.72s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:38:55,795 WARN L222 SmtUtils]: Spent 8.60s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:39:04,172 WARN L222 SmtUtils]: Spent 8.38s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:39:11,680 WARN L222 SmtUtils]: Spent 7.31s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:39:18,204 WARN L222 SmtUtils]: Spent 6.52s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:39:25,641 WARN L222 SmtUtils]: Spent 7.44s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:39:33,579 WARN L222 SmtUtils]: Spent 7.94s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:39:35,811 INFO L134 LiptonReduction]: Checked pairs total: 250690 [2023-08-31 11:39:35,811 INFO L136 LiptonReduction]: Total number of compositions: 231 [2023-08-31 11:39:35,813 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-31 11:39:35,813 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4cb5118f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 11:39:35,813 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-31 11:39:35,836 INFO L130 PetriNetUnfolder]: 7/110 cut-off events. [2023-08-31 11:39:35,837 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-31 11:39:35,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:39:35,837 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-31 11:39:35,837 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-31 11:39:35,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:39:35,838 INFO L85 PathProgramCache]: Analyzing trace with hash 250328563, now seen corresponding path program 1 times [2023-08-31 11:39:35,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:39:35,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853270755] [2023-08-31 11:39:35,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:39:35,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:39:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 11:39:35,887 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 11:39:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 11:39:35,947 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 11:39:35,947 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 11:39:35,947 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-31 11:39:35,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 11:39:35,948 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-31 11:39:35,948 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-31 11:39:35,948 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-31 11:39:35,948 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-31 11:39:36,156 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 11:39:36,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 420 places, 440 transitions, 912 flow [2023-08-31 11:39:36,290 INFO L130 PetriNetUnfolder]: 33/486 cut-off events. [2023-08-31 11:39:36,290 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-31 11:39:36,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 486 events. 33/486 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2430 event pairs, 0 based on Foata normal form. 0/376 useless extension candidates. Maximal degree in co-relation 416. Up to 10 conditions per place. [2023-08-31 11:39:36,299 INFO L82 GeneralOperation]: Start removeDead. Operand has 420 places, 440 transitions, 912 flow [2023-08-31 11:39:36,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 420 places, 440 transitions, 912 flow [2023-08-31 11:39:36,304 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 11:39:36,304 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 420 places, 440 transitions, 912 flow [2023-08-31 11:39:36,304 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 420 places, 440 transitions, 912 flow [2023-08-31 11:39:36,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 420 places, 440 transitions, 912 flow [2023-08-31 11:39:36,428 INFO L130 PetriNetUnfolder]: 33/486 cut-off events. [2023-08-31 11:39:36,430 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-31 11:39:36,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 486 events. 33/486 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2430 event pairs, 0 based on Foata normal form. 0/376 useless extension candidates. Maximal degree in co-relation 416. Up to 10 conditions per place. [2023-08-31 11:39:36,463 INFO L119 LiptonReduction]: Number of co-enabled transitions 134128 [2023-08-31 11:39:54,366 WARN L222 SmtUtils]: Spent 15.26s on a formula simplification. DAG size of input: 144 DAG size of output: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:40:02,123 WARN L222 SmtUtils]: Spent 7.76s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:40:19,538 WARN L222 SmtUtils]: Spent 17.41s on a formula simplification. DAG size of input: 130 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:40:28,448 WARN L222 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:40:42,566 WARN L222 SmtUtils]: Spent 13.70s on a formula simplification. DAG size of input: 137 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:40:50,233 WARN L222 SmtUtils]: Spent 7.67s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:41:03,995 WARN L222 SmtUtils]: Spent 13.76s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:41:10,778 WARN L222 SmtUtils]: Spent 6.78s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:41:25,151 WARN L222 SmtUtils]: Spent 13.02s on a formula simplification. DAG size of input: 144 DAG size of output: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:41:32,234 WARN L222 SmtUtils]: Spent 7.08s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:41:47,140 WARN L222 SmtUtils]: Spent 14.90s on a formula simplification. DAG size of input: 130 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:41:55,168 WARN L222 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:42:09,609 WARN L222 SmtUtils]: Spent 14.06s on a formula simplification. DAG size of input: 144 DAG size of output: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:42:16,918 WARN L222 SmtUtils]: Spent 7.31s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:42:31,507 WARN L222 SmtUtils]: Spent 14.59s on a formula simplification. DAG size of input: 130 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:42:39,470 WARN L222 SmtUtils]: Spent 7.96s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:42:54,521 WARN L222 SmtUtils]: Spent 14.76s on a formula simplification. DAG size of input: 137 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:43:01,680 WARN L222 SmtUtils]: Spent 7.16s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:43:15,782 WARN L222 SmtUtils]: Spent 14.10s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 11:43:22,594 WARN L222 SmtUtils]: Spent 6.81s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) Killed by 15