./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/goblint-regression/13-privatized_36-traces-ex-3_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 00ab4006d72abca4f35a64fe9dabb6d6d9b6871c611e836e638cfc5bf3cdc124 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 00:06:08,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 00:06:08,274 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 00:06:08,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 00:06:08,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 00:06:08,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 00:06:08,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 00:06:08,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 00:06:08,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 00:06:08,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 00:06:08,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 00:06:08,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 00:06:08,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 00:06:08,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 00:06:08,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 00:06:08,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 00:06:08,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 00:06:08,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 00:06:08,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 00:06:08,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 00:06:08,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 00:06:08,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 00:06:08,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 00:06:08,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 00:06:08,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 00:06:08,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 00:06:08,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 00:06:08,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 00:06:08,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 00:06:08,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 00:06:08,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 00:06:08,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 00:06:08,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 00:06:08,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 00:06:08,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 00:06:08,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 00:06:08,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 00:06:08,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 00:06:08,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 00:06:08,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 00:06:08,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 00:06:08,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-31 00:06:08,411 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 00:06:08,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 00:06:08,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 00:06:08,413 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 00:06:08,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 00:06:08,414 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 00:06:08,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 00:06:08,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 00:06:08,415 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 00:06:08,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 00:06:08,416 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 00:06:08,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 00:06:08,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 00:06:08,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 00:06:08,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 00:06:08,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 00:06:08,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 00:06:08,417 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 00:06:08,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 00:06:08,418 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 00:06:08,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 00:06:08,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 00:06:08,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 00:06:08,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 00:06:08,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:06:08,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 00:06:08,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 00:06:08,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 00:06:08,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 00:06:08,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 00:06:08,420 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 00:06:08,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 00:06:08,420 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 00:06:08,421 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 00:06:08,421 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 00:06:08,421 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00ab4006d72abca4f35a64fe9dabb6d6d9b6871c611e836e638cfc5bf3cdc124 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-31 00:06:08,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 00:06:08,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 00:06:08,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 00:06:08,755 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 00:06:08,755 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 00:06:08,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i [2023-08-31 00:06:10,018 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 00:06:10,224 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 00:06:10,225 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i [2023-08-31 00:06:10,237 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/940bf6914/26a2121dab444d0aaa853457908815c7/FLAGa5590bda6 [2023-08-31 00:06:10,252 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/940bf6914/26a2121dab444d0aaa853457908815c7 [2023-08-31 00:06:10,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 00:06:10,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 00:06:10,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 00:06:10,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 00:06:10,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 00:06:10,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:06:10" (1/1) ... [2023-08-31 00:06:10,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651a8db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:10, skipping insertion in model container [2023-08-31 00:06:10,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:06:10" (1/1) ... [2023-08-31 00:06:10,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 00:06:10,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 00:06:10,473 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i[1088,1101] [2023-08-31 00:06:10,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:06:10,626 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 00:06:10,638 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i[1088,1101] [2023-08-31 00:06:10,666 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:06:10,715 INFO L208 MainTranslator]: Completed translation [2023-08-31 00:06:10,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:10 WrapperNode [2023-08-31 00:06:10,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 00:06:10,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 00:06:10,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 00:06:10,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 00:06:10,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:10" (1/1) ... [2023-08-31 00:06:10,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:10" (1/1) ... [2023-08-31 00:06:10,753 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-08-31 00:06:10,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 00:06:10,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 00:06:10,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 00:06:10,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 00:06:10,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:10" (1/1) ... [2023-08-31 00:06:10,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:10" (1/1) ... [2023-08-31 00:06:10,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:10" (1/1) ... [2023-08-31 00:06:10,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:10" (1/1) ... [2023-08-31 00:06:10,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:10" (1/1) ... [2023-08-31 00:06:10,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:10" (1/1) ... [2023-08-31 00:06:10,770 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:10" (1/1) ... [2023-08-31 00:06:10,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:10" (1/1) ... [2023-08-31 00:06:10,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 00:06:10,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 00:06:10,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 00:06:10,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 00:06:10,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:10" (1/1) ... [2023-08-31 00:06:10,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:06:10,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:06:10,807 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 00:06:10,828 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 00:06:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 00:06:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 00:06:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 00:06:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 00:06:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 00:06:10,842 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 00:06:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 00:06:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 00:06:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 00:06:10,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 00:06:10,844 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 00:06:10,937 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 00:06:10,939 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 00:06:11,086 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 00:06:11,091 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 00:06:11,104 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 00:06:11,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:06:11 BoogieIcfgContainer [2023-08-31 00:06:11,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 00:06:11,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 00:06:11,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 00:06:11,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 00:06:11,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 12:06:10" (1/3) ... [2023-08-31 00:06:11,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529a8168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:06:11, skipping insertion in model container [2023-08-31 00:06:11,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:10" (2/3) ... [2023-08-31 00:06:11,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529a8168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:06:11, skipping insertion in model container [2023-08-31 00:06:11,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:06:11" (3/3) ... [2023-08-31 00:06:11,113 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_36-traces-ex-3_true.i [2023-08-31 00:06:11,120 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 00:06:11,146 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 00:06:11,146 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-31 00:06:11,146 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 00:06:11,181 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 00:06:11,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 62 transitions, 129 flow [2023-08-31 00:06:11,271 INFO L130 PetriNetUnfolder]: 1/61 cut-off events. [2023-08-31 00:06:11,272 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:06:11,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2023-08-31 00:06:11,277 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 62 transitions, 129 flow [2023-08-31 00:06:11,280 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2023-08-31 00:06:11,283 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:06:11,294 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2023-08-31 00:06:11,301 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2023-08-31 00:06:11,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2023-08-31 00:06:11,330 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2023-08-31 00:06:11,332 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:06:11,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 00:06:11,333 INFO L119 LiptonReduction]: Number of co-enabled transitions 264 [2023-08-31 00:06:13,412 INFO L134 LiptonReduction]: Checked pairs total: 710 [2023-08-31 00:06:13,412 INFO L136 LiptonReduction]: Total number of compositions: 40 [2023-08-31 00:06:13,423 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:06:13,428 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;@2cc93be7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:06:13,428 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-31 00:06:13,431 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-31 00:06:13,431 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:06:13,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:06:13,432 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 00:06:13,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-31 00:06:13,436 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:06:13,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1909908932, now seen corresponding path program 1 times [2023-08-31 00:06:13,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:06:13,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793784254] [2023-08-31 00:06:13,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:06:13,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:06:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:06:13,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:06:13,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:06:13,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793784254] [2023-08-31 00:06:13,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793784254] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:06:13,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:06:13,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-31 00:06:13,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163271990] [2023-08-31 00:06:13,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:06:13,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 00:06:13,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:06:13,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 00:06:13,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 00:06:13,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 102 [2023-08-31 00:06:13,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 27 flow. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:13,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:06:13,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 102 [2023-08-31 00:06:13,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:06:13,801 INFO L130 PetriNetUnfolder]: 11/39 cut-off events. [2023-08-31 00:06:13,801 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:06:13,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 39 events. 11/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 77 event pairs, 7 based on Foata normal form. 4/43 useless extension candidates. Maximal degree in co-relation 69. Up to 21 conditions per place. [2023-08-31 00:06:13,803 INFO L137 encePairwiseOnDemand]: 98/102 looper letters, 9 selfloop transitions, 3 changer transitions 0/14 dead transitions. [2023-08-31 00:06:13,803 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 14 transitions, 55 flow [2023-08-31 00:06:13,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 00:06:13,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 00:06:13,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2023-08-31 00:06:13,813 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5915032679738562 [2023-08-31 00:06:13,814 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 181 transitions. [2023-08-31 00:06:13,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 181 transitions. [2023-08-31 00:06:13,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:06:13,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 181 transitions. [2023-08-31 00:06:13,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:13,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:13,822 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:13,824 INFO L175 Difference]: Start difference. First operand has 16 places, 12 transitions, 27 flow. Second operand 3 states and 181 transitions. [2023-08-31 00:06:13,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 14 transitions, 55 flow [2023-08-31 00:06:13,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 14 transitions, 54 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 00:06:13,827 INFO L231 Difference]: Finished difference. Result has 18 places, 12 transitions, 37 flow [2023-08-31 00:06:13,828 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=37, PETRI_PLACES=18, PETRI_TRANSITIONS=12} [2023-08-31 00:06:13,831 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 2 predicate places. [2023-08-31 00:06:13,832 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 12 transitions, 37 flow [2023-08-31 00:06:13,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:13,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:06:13,832 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:06:13,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:06:13,833 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-31 00:06:13,833 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:06:13,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1468011745, now seen corresponding path program 1 times [2023-08-31 00:06:13,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:06:13,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014973461] [2023-08-31 00:06:13,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:06:13,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:06:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:06:13,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:06:13,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:06:13,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014973461] [2023-08-31 00:06:13,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014973461] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:06:13,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:06:13,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 00:06:13,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382485542] [2023-08-31 00:06:13,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:06:13,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 00:06:13,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:06:13,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 00:06:13,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-31 00:06:14,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 102 [2023-08-31 00:06:14,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 12 transitions, 37 flow. Second operand has 5 states, 5 states have (on average 52.6) internal successors, (263), 5 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:14,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:06:14,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 102 [2023-08-31 00:06:14,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:06:14,070 INFO L130 PetriNetUnfolder]: 8/32 cut-off events. [2023-08-31 00:06:14,070 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 00:06:14,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 32 events. 8/32 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 2 based on Foata normal form. 4/36 useless extension candidates. Maximal degree in co-relation 63. Up to 17 conditions per place. [2023-08-31 00:06:14,071 INFO L137 encePairwiseOnDemand]: 98/102 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2023-08-31 00:06:14,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 13 transitions, 59 flow [2023-08-31 00:06:14,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 00:06:14,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 00:06:14,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 217 transitions. [2023-08-31 00:06:14,073 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5318627450980392 [2023-08-31 00:06:14,073 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 217 transitions. [2023-08-31 00:06:14,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 217 transitions. [2023-08-31 00:06:14,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:06:14,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 217 transitions. [2023-08-31 00:06:14,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:14,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:14,077 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:14,077 INFO L175 Difference]: Start difference. First operand has 18 places, 12 transitions, 37 flow. Second operand 4 states and 217 transitions. [2023-08-31 00:06:14,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 13 transitions, 59 flow [2023-08-31 00:06:14,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 13 transitions, 50 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 00:06:14,078 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2023-08-31 00:06:14,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2023-08-31 00:06:14,079 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 1 predicate places. [2023-08-31 00:06:14,079 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow [2023-08-31 00:06:14,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 52.6) internal successors, (263), 5 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:06:14,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-08-31 00:06:14,082 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-31 00:06:14,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 00:06:14,082 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-31 00:06:14,085 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 00:06:14,085 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 00:06:14,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 12:06:14 BasicIcfg [2023-08-31 00:06:14,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 00:06:14,088 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 00:06:14,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 00:06:14,089 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 00:06:14,089 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:06:11" (3/4) ... [2023-08-31 00:06:14,091 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 00:06:14,096 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-31 00:06:14,099 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-08-31 00:06:14,099 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 00:06:14,099 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 00:06:14,100 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 00:06:14,126 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 00:06:14,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 00:06:14,127 INFO L158 Benchmark]: Toolchain (without parser) took 3871.63ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 50.9MB in the beginning and 53.0MB in the end (delta: -2.0MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2023-08-31 00:06:14,127 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 38.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:06:14,128 INFO L158 Benchmark]: CACSL2BoogieTranslator took 459.59ms. Allocated memory is still 73.4MB. Free memory was 50.7MB in the beginning and 50.2MB in the end (delta: 567.9kB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2023-08-31 00:06:14,128 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.31ms. Allocated memory is still 73.4MB. Free memory was 50.2MB in the beginning and 48.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:06:14,128 INFO L158 Benchmark]: Boogie Preprocessor took 18.53ms. Allocated memory is still 73.4MB. Free memory was 48.1MB in the beginning and 47.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:06:14,129 INFO L158 Benchmark]: RCFGBuilder took 333.14ms. Allocated memory is still 73.4MB. Free memory was 46.7MB in the beginning and 34.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-31 00:06:14,129 INFO L158 Benchmark]: TraceAbstraction took 2979.54ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 34.1MB in the beginning and 55.7MB in the end (delta: -21.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:06:14,130 INFO L158 Benchmark]: Witness Printer took 38.23ms. Allocated memory is still 88.1MB. Free memory was 55.7MB in the beginning and 53.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:06:14,131 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 38.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 459.59ms. Allocated memory is still 73.4MB. Free memory was 50.7MB in the beginning and 50.2MB in the end (delta: 567.9kB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.31ms. Allocated memory is still 73.4MB. Free memory was 50.2MB in the beginning and 48.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.53ms. Allocated memory is still 73.4MB. Free memory was 48.1MB in the beginning and 47.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 333.14ms. Allocated memory is still 73.4MB. Free memory was 46.7MB in the beginning and 34.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2979.54ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 34.1MB in the beginning and 55.7MB in the end (delta: -21.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 38.23ms. Allocated memory is still 88.1MB. Free memory was 55.7MB in the beginning and 53.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 56 PlacesBefore, 16 PlacesAfterwards, 52 TransitionsBefore, 12 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 40 TotalNumberOfCompositions, 710 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 325, independent: 221, independent conditional: 0, independent unconditional: 221, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 140, independent: 120, independent conditional: 0, independent unconditional: 120, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 325, independent: 101, independent conditional: 0, independent unconditional: 101, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 140, unknown conditional: 0, unknown unconditional: 140] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 75 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 112 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 2 mSDtfsCounter, 112 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=1, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 00:06:14,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE