./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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_33-traces-v-matters_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 5093baaae269ae8f20fbce19a6dc2a002c438d5951124b2c99d459b145e3e5a5 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 17:41:35,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 17:41:35,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 17:41:35,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 17:41:35,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 17:41:35,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 17:41:35,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 17:41:35,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 17:41:35,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 17:41:35,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 17:41:35,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 17:41:35,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 17:41:35,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 17:41:35,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 17:41:35,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 17:41:35,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 17:41:35,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 17:41:35,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 17:41:35,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 17:41:35,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 17:41:35,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 17:41:35,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 17:41:35,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 17:41:35,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 17:41:35,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 17:41:35,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 17:41:35,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 17:41:35,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 17:41:35,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 17:41:35,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 17:41:35,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 17:41:35,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 17:41:35,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 17:41:35,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 17:41:35,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 17:41:35,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 17:41:35,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 17:41:35,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 17:41:35,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 17:41:35,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 17:41:35,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 17:41:35,807 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 17:41:35,838 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 17:41:35,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 17:41:35,840 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 17:41:35,840 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 17:41:35,841 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 17:41:35,841 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 17:41:35,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 17:41:35,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 17:41:35,842 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 17:41:35,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 17:41:35,843 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 17:41:35,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 17:41:35,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 17:41:35,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 17:41:35,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 17:41:35,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 17:41:35,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 17:41:35,844 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 17:41:35,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 17:41:35,844 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 17:41:35,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 17:41:35,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 17:41:35,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 17:41:35,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 17:41:35,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:41:35,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 17:41:35,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 17:41:35,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 17:41:35,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 17:41:35,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 17:41:35,846 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 17:41:35,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 17:41:35,847 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 17:41:35,847 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 17:41:35,847 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 17:41:35,847 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5093baaae269ae8f20fbce19a6dc2a002c438d5951124b2c99d459b145e3e5a5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 17:41:36,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 17:41:36,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 17:41:36,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 17:41:36,168 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 17:41:36,168 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 17:41:36,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2023-08-30 17:41:37,345 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 17:41:37,596 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 17:41:37,597 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2023-08-30 17:41:37,608 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/925ae0341/2f3e426f56334b20a2afd0dd8358aa3b/FLAGbdae847b5 [2023-08-30 17:41:37,626 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/925ae0341/2f3e426f56334b20a2afd0dd8358aa3b [2023-08-30 17:41:37,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 17:41:37,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 17:41:37,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 17:41:37,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 17:41:37,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 17:41:37,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:41:37" (1/1) ... [2023-08-30 17:41:37,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65812f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:37, skipping insertion in model container [2023-08-30 17:41:37,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:41:37" (1/1) ... [2023-08-30 17:41:37,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 17:41:37,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 17:41:37,783 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_33-traces-v-matters_true.i[1093,1106] [2023-08-30 17:41:37,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:41:37,946 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 17:41:37,956 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_33-traces-v-matters_true.i[1093,1106] [2023-08-30 17:41:37,995 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:41:38,047 INFO L208 MainTranslator]: Completed translation [2023-08-30 17:41:38,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:38 WrapperNode [2023-08-30 17:41:38,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 17:41:38,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 17:41:38,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 17:41:38,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 17:41:38,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:38" (1/1) ... [2023-08-30 17:41:38,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:38" (1/1) ... [2023-08-30 17:41:38,080 INFO L138 Inliner]: procedures = 162, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2023-08-30 17:41:38,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 17:41:38,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 17:41:38,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 17:41:38,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 17:41:38,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:38" (1/1) ... [2023-08-30 17:41:38,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:38" (1/1) ... [2023-08-30 17:41:38,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:38" (1/1) ... [2023-08-30 17:41:38,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:38" (1/1) ... [2023-08-30 17:41:38,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:38" (1/1) ... [2023-08-30 17:41:38,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:38" (1/1) ... [2023-08-30 17:41:38,097 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:38" (1/1) ... [2023-08-30 17:41:38,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:38" (1/1) ... [2023-08-30 17:41:38,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 17:41:38,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 17:41:38,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 17:41:38,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 17:41:38,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:38" (1/1) ... [2023-08-30 17:41:38,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:41:38,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:41:38,128 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) [2023-08-30 17:41:38,154 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 [2023-08-30 17:41:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 17:41:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 17:41:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 17:41:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 17:41:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 17:41:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 17:41:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 17:41:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 17:41:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 17:41:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 17:41:38,170 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 17:41:38,330 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 17:41:38,331 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 17:41:38,478 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 17:41:38,483 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 17:41:38,484 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 17:41:38,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:41:38 BoogieIcfgContainer [2023-08-30 17:41:38,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 17:41:38,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 17:41:38,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 17:41:38,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 17:41:38,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:41:37" (1/3) ... [2023-08-30 17:41:38,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60eca984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:41:38, skipping insertion in model container [2023-08-30 17:41:38,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:38" (2/3) ... [2023-08-30 17:41:38,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60eca984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:41:38, skipping insertion in model container [2023-08-30 17:41:38,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:41:38" (3/3) ... [2023-08-30 17:41:38,493 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2023-08-30 17:41:38,499 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 17:41:38,508 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 17:41:38,508 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-30 17:41:38,508 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 17:41:38,546 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 17:41:38,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 73 transitions, 151 flow [2023-08-30 17:41:38,629 INFO L130 PetriNetUnfolder]: 1/72 cut-off events. [2023-08-30 17:41:38,630 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:41:38,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 1/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2023-08-30 17:41:38,633 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 73 transitions, 151 flow [2023-08-30 17:41:38,636 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 64 transitions, 131 flow [2023-08-30 17:41:38,639 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 17:41:38,647 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 64 transitions, 131 flow [2023-08-30 17:41:38,650 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 64 transitions, 131 flow [2023-08-30 17:41:38,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 131 flow [2023-08-30 17:41:38,670 INFO L130 PetriNetUnfolder]: 0/64 cut-off events. [2023-08-30 17:41:38,670 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:41:38,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 64 events. 0/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 26 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-30 17:41:38,671 INFO L119 LiptonReduction]: Number of co-enabled transitions 390 [2023-08-30 17:41:41,229 INFO L134 LiptonReduction]: Checked pairs total: 1216 [2023-08-30 17:41:41,229 INFO L136 LiptonReduction]: Total number of compositions: 49 [2023-08-30 17:41:41,242 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 17:41:41,247 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;@e685b6d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 17:41:41,248 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-30 17:41:41,252 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2023-08-30 17:41:41,252 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:41:41,252 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:41:41,253 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:41:41,253 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 17:41:41,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:41:41,258 INFO L85 PathProgramCache]: Analyzing trace with hash -438295067, now seen corresponding path program 1 times [2023-08-30 17:41:41,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:41:41,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215548958] [2023-08-30 17:41:41,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:41:41,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:41:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:41:41,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:41:41,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:41:41,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215548958] [2023-08-30 17:41:41,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215548958] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:41:41,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:41:41,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 17:41:41,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229015456] [2023-08-30 17:41:41,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:41:41,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 17:41:41,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:41:41,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 17:41:41,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 17:41:41,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 122 [2023-08-30 17:41:41,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 15 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2023-08-30 17:41:41,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:41:41,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 122 [2023-08-30 17:41:41,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:41:41,671 INFO L130 PetriNetUnfolder]: 19/70 cut-off events. [2023-08-30 17:41:41,671 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:41:41,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 70 events. 19/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 221 event pairs, 10 based on Foata normal form. 5/73 useless extension candidates. Maximal degree in co-relation 120. Up to 39 conditions per place. [2023-08-30 17:41:41,674 INFO L137 encePairwiseOnDemand]: 119/122 looper letters, 11 selfloop transitions, 2 changer transitions 3/20 dead transitions. [2023-08-30 17:41:41,674 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 20 transitions, 75 flow [2023-08-30 17:41:41,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 17:41:41,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 17:41:41,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2023-08-30 17:41:41,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5956284153005464 [2023-08-30 17:41:41,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2023-08-30 17:41:41,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2023-08-30 17:41:41,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:41:41,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2023-08-30 17:41:41,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2023-08-30 17:41:41,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2023-08-30 17:41:41,705 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2023-08-30 17:41:41,707 INFO L175 Difference]: Start difference. First operand has 19 places, 15 transitions, 33 flow. Second operand 3 states and 218 transitions. [2023-08-30 17:41:41,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 20 transitions, 75 flow [2023-08-30 17:41:41,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 20 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 17:41:41,711 INFO L231 Difference]: Finished difference. Result has 21 places, 15 transitions, 40 flow [2023-08-30 17:41:41,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=21, PETRI_TRANSITIONS=15} [2023-08-30 17:41:41,723 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 2 predicate places. [2023-08-30 17:41:41,724 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 15 transitions, 40 flow [2023-08-30 17:41:41,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2023-08-30 17:41:41,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:41:41,725 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:41:41,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 17:41:41,725 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 17:41:41,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:41:41,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1181676336, now seen corresponding path program 1 times [2023-08-30 17:41:41,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:41:41,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202732467] [2023-08-30 17:41:41,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:41:41,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:41:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:41:41,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:41:41,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:41:41,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202732467] [2023-08-30 17:41:41,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202732467] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:41:41,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:41:41,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 17:41:41,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039838679] [2023-08-30 17:41:41,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:41:41,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 17:41:41,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:41:41,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 17:41:41,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 17:41:41,924 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 122 [2023-08-30 17:41:41,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 15 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2023-08-30 17:41:41,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:41:41,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 122 [2023-08-30 17:41:41,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:41:41,962 INFO L130 PetriNetUnfolder]: 10/38 cut-off events. [2023-08-30 17:41:41,962 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 17:41:41,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 38 events. 10/38 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 4 based on Foata normal form. 4/42 useless extension candidates. Maximal degree in co-relation 79. Up to 20 conditions per place. [2023-08-30 17:41:41,963 INFO L137 encePairwiseOnDemand]: 118/122 looper letters, 12 selfloop transitions, 4 changer transitions 0/17 dead transitions. [2023-08-30 17:41:41,964 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 17 transitions, 78 flow [2023-08-30 17:41:41,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 17:41:41,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 17:41:41,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2023-08-30 17:41:41,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5655737704918032 [2023-08-30 17:41:41,969 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 207 transitions. [2023-08-30 17:41:41,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 207 transitions. [2023-08-30 17:41:41,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:41:41,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 207 transitions. [2023-08-30 17:41:41,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2023-08-30 17:41:41,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2023-08-30 17:41:41,974 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2023-08-30 17:41:41,974 INFO L175 Difference]: Start difference. First operand has 21 places, 15 transitions, 40 flow. Second operand 3 states and 207 transitions. [2023-08-30 17:41:41,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 17 transitions, 78 flow [2023-08-30 17:41:41,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 76 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 17:41:41,975 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 46 flow [2023-08-30 17:41:41,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2023-08-30 17:41:41,976 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 3 predicate places. [2023-08-30 17:41:41,977 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 46 flow [2023-08-30 17:41:41,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2023-08-30 17:41:41,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:41:41,977 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:41:41,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 17:41:41,978 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 17:41:41,980 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:41:41,981 INFO L85 PathProgramCache]: Analyzing trace with hash -547935236, now seen corresponding path program 2 times [2023-08-30 17:41:41,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:41:41,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247911392] [2023-08-30 17:41:41,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:41:41,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:41:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:41:42,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:41:42,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:41:42,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247911392] [2023-08-30 17:41:42,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247911392] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:41:42,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:41:42,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 17:41:42,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267459918] [2023-08-30 17:41:42,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:41:42,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 17:41:42,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:41:42,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 17:41:42,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 17:41:42,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 122 [2023-08-30 17:41:42,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 46 flow. Second operand has 5 states, 5 states have (on average 64.2) internal successors, (321), 5 states have internal predecessors, (321), 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) [2023-08-30 17:41:42,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:41:42,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 122 [2023-08-30 17:41:42,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:41:42,282 INFO L130 PetriNetUnfolder]: 4/29 cut-off events. [2023-08-30 17:41:42,283 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 17:41:42,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 29 events. 4/29 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 0 based on Foata normal form. 4/33 useless extension candidates. Maximal degree in co-relation 66. Up to 15 conditions per place. [2023-08-30 17:41:42,285 INFO L137 encePairwiseOnDemand]: 117/122 looper letters, 13 selfloop transitions, 5 changer transitions 1/19 dead transitions. [2023-08-30 17:41:42,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 19 transitions, 96 flow [2023-08-30 17:41:42,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 17:41:42,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 17:41:42,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2023-08-30 17:41:42,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5512295081967213 [2023-08-30 17:41:42,287 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 269 transitions. [2023-08-30 17:41:42,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 269 transitions. [2023-08-30 17:41:42,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:41:42,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 269 transitions. [2023-08-30 17:41:42,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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) [2023-08-30 17:41:42,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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) [2023-08-30 17:41:42,290 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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) [2023-08-30 17:41:42,290 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 46 flow. Second operand 4 states and 269 transitions. [2023-08-30 17:41:42,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 19 transitions, 96 flow [2023-08-30 17:41:42,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 19 transitions, 91 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 17:41:42,292 INFO L231 Difference]: Finished difference. Result has 25 places, 16 transitions, 60 flow [2023-08-30 17:41:42,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=60, PETRI_PLACES=25, PETRI_TRANSITIONS=16} [2023-08-30 17:41:42,293 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 6 predicate places. [2023-08-30 17:41:42,294 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 16 transitions, 60 flow [2023-08-30 17:41:42,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.2) internal successors, (321), 5 states have internal predecessors, (321), 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) [2023-08-30 17:41:42,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:41:42,294 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:41:42,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 17:41:42,295 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 17:41:42,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:41:42,295 INFO L85 PathProgramCache]: Analyzing trace with hash -700420633, now seen corresponding path program 1 times [2023-08-30 17:41:42,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:41:42,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658513960] [2023-08-30 17:41:42,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:41:42,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:41:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:41:42,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:41:42,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:41:42,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658513960] [2023-08-30 17:41:42,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658513960] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:41:42,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:41:42,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 17:41:42,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166421739] [2023-08-30 17:41:42,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:41:42,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 17:41:42,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:41:42,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 17:41:42,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-30 17:41:42,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 122 [2023-08-30 17:41:42,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 16 transitions, 60 flow. Second operand has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 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) [2023-08-30 17:41:42,594 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:41:42,594 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 122 [2023-08-30 17:41:42,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:41:42,620 INFO L130 PetriNetUnfolder]: 1/14 cut-off events. [2023-08-30 17:41:42,620 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 17:41:42,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 14 events. 1/14 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 1 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 29. Up to 8 conditions per place. [2023-08-30 17:41:42,621 INFO L137 encePairwiseOnDemand]: 119/122 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2023-08-30 17:41:42,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 11 transitions, 60 flow [2023-08-30 17:41:42,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 17:41:42,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 17:41:42,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 255 transitions. [2023-08-30 17:41:42,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5225409836065574 [2023-08-30 17:41:42,626 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 255 transitions. [2023-08-30 17:41:42,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 255 transitions. [2023-08-30 17:41:42,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:41:42,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 255 transitions. [2023-08-30 17:41:42,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 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) [2023-08-30 17:41:42,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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) [2023-08-30 17:41:42,629 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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) [2023-08-30 17:41:42,629 INFO L175 Difference]: Start difference. First operand has 25 places, 16 transitions, 60 flow. Second operand 4 states and 255 transitions. [2023-08-30 17:41:42,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 11 transitions, 60 flow [2023-08-30 17:41:42,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 11 transitions, 55 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 17:41:42,630 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2023-08-30 17:41:42,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2023-08-30 17:41:42,631 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 1 predicate places. [2023-08-30 17:41:42,631 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2023-08-30 17:41:42,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 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) [2023-08-30 17:41:42,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-08-30 17:41:42,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-30 17:41:42,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 17:41:42,634 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-08-30 17:41:42,637 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 17:41:42,637 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 17:41:42,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:41:42 BasicIcfg [2023-08-30 17:41:42,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 17:41:42,641 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 17:41:42,641 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 17:41:42,641 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 17:41:42,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:41:38" (3/4) ... [2023-08-30 17:41:42,644 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 17:41:42,649 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 17:41:42,652 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-08-30 17:41:42,652 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 17:41:42,653 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 17:41:42,653 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 17:41:42,681 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 17:41:42,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 17:41:42,682 INFO L158 Benchmark]: Toolchain (without parser) took 5050.19ms. Allocated memory was 71.3MB in the beginning and 107.0MB in the end (delta: 35.7MB). Free memory was 46.7MB in the beginning and 39.5MB in the end (delta: 7.2MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2023-08-30 17:41:42,682 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:41:42,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.16ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 46.4MB in the beginning and 62.3MB in the end (delta: -15.9MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-08-30 17:41:42,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.56ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 60.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:41:42,683 INFO L158 Benchmark]: Boogie Preprocessor took 19.05ms. Allocated memory is still 88.1MB. Free memory was 60.5MB in the beginning and 59.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:41:42,684 INFO L158 Benchmark]: RCFGBuilder took 385.29ms. Allocated memory is still 88.1MB. Free memory was 59.0MB in the beginning and 46.0MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 17:41:42,684 INFO L158 Benchmark]: TraceAbstraction took 4153.39ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 45.5MB in the beginning and 41.7MB in the end (delta: 3.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-30 17:41:42,684 INFO L158 Benchmark]: Witness Printer took 40.63ms. Allocated memory is still 107.0MB. Free memory was 41.7MB in the beginning and 39.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 17:41:42,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 415.16ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 46.4MB in the beginning and 62.3MB in the end (delta: -15.9MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.56ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 60.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.05ms. Allocated memory is still 88.1MB. Free memory was 60.5MB in the beginning and 59.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 385.29ms. Allocated memory is still 88.1MB. Free memory was 59.0MB in the beginning and 46.0MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4153.39ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 45.5MB in the beginning and 41.7MB in the end (delta: 3.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 40.63ms. Allocated memory is still 107.0MB. Free memory was 41.7MB in the beginning and 39.5MB in the end (delta: 2.1MB). 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: 2.6s, 68 PlacesBefore, 19 PlacesAfterwards, 64 TransitionsBefore, 15 TransitionsAfterwards, 390 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 49 TotalNumberOfCompositions, 1216 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 439, independent: 300, independent conditional: 0, independent unconditional: 300, dependent: 139, dependent conditional: 0, dependent unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 190, independent: 171, independent conditional: 0, independent unconditional: 171, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 439, independent: 129, independent conditional: 0, independent unconditional: 129, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 190, unknown conditional: 0, unknown unconditional: 190] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 10, Positive conditional cache size: 0, Positive unconditional cache size: 10, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, 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, 88 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: 4.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 228 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 127 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 346 IncrementalHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 10 mSDtfsCounter, 346 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=3, InterpolantAutomatonStates: 14, 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, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 178 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2023-08-30 17:41:42,708 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