./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 00:08:27,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 00:08:27,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 00:08:27,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 00:08:27,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 00:08:27,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 00:08:27,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 00:08:27,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 00:08:27,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 00:08:27,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 00:08:27,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 00:08:27,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 00:08:27,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 00:08:27,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 00:08:27,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 00:08:27,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 00:08:27,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 00:08:27,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 00:08:27,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 00:08:27,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 00:08:27,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 00:08:27,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 00:08:27,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 00:08:27,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 00:08:27,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 00:08:27,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 00:08:27,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 00:08:27,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 00:08:27,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 00:08:27,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 00:08:27,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 00:08:27,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 00:08:27,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 00:08:27,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 00:08:27,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 00:08:27,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 00:08:27,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 00:08:27,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 00:08:27,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 00:08:27,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 00:08:27,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 00:08:27,781 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-09-01 00:08:27,815 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 00:08:27,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 00:08:27,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 00:08:27,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 00:08:27,817 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 00:08:27,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 00:08:27,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 00:08:27,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 00:08:27,818 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 00:08:27,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 00:08:27,820 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 00:08:27,820 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 00:08:27,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 00:08:27,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 00:08:27,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 00:08:27,821 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-09-01 00:08:27,821 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-09-01 00:08:27,821 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-09-01 00:08:27,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 00:08:27,822 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-09-01 00:08:27,822 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 00:08:27,822 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 00:08:27,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 00:08:27,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 00:08:27,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 00:08:27,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:08:27,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 00:08:27,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 00:08:27,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 00:08:27,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 00:08:27,824 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 00:08:27,824 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 00:08:27,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 00:08:27,825 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 00:08:27,825 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 00:08:28,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 00:08:28,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 00:08:28,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 00:08:28,209 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 00:08:28,210 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 00:08:28,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i [2023-09-01 00:08:29,332 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 00:08:29,656 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 00:08:29,659 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i [2023-09-01 00:08:29,675 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbba4932d/acda946366df43a6ba4b120243a8142d/FLAGc4ebfd0d6 [2023-09-01 00:08:29,694 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbba4932d/acda946366df43a6ba4b120243a8142d [2023-09-01 00:08:29,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 00:08:29,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 00:08:29,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 00:08:29,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 00:08:29,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 00:08:29,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:08:29" (1/1) ... [2023-09-01 00:08:29,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb7612a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:29, skipping insertion in model container [2023-09-01 00:08:29,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:08:29" (1/1) ... [2023-09-01 00:08:29,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 00:08:29,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 00:08:30,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:08:30,311 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 00:08:30,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:08:30,462 INFO L208 MainTranslator]: Completed translation [2023-09-01 00:08:30,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:30 WrapperNode [2023-09-01 00:08:30,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 00:08:30,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 00:08:30,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 00:08:30,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 00:08:30,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:30" (1/1) ... [2023-09-01 00:08:30,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:30" (1/1) ... [2023-09-01 00:08:30,543 INFO L138 Inliner]: procedures = 368, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 80 [2023-09-01 00:08:30,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 00:08:30,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 00:08:30,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 00:08:30,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 00:08:30,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:30" (1/1) ... [2023-09-01 00:08:30,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:30" (1/1) ... [2023-09-01 00:08:30,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:30" (1/1) ... [2023-09-01 00:08:30,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:30" (1/1) ... [2023-09-01 00:08:30,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:30" (1/1) ... [2023-09-01 00:08:30,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:30" (1/1) ... [2023-09-01 00:08:30,566 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:30" (1/1) ... [2023-09-01 00:08:30,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:30" (1/1) ... [2023-09-01 00:08:30,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 00:08:30,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 00:08:30,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 00:08:30,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 00:08:30,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:30" (1/1) ... [2023-09-01 00:08:30,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:08:30,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 00:08:30,610 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) [2023-09-01 00:08:30,617 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 [2023-09-01 00:08:30,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 00:08:30,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-09-01 00:08:30,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 00:08:30,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 00:08:30,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 00:08:30,647 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 00:08:30,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-01 00:08:30,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 00:08:30,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-09-01 00:08:30,648 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 00:08:30,648 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 00:08:30,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 00:08:30,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 00:08:30,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 00:08:30,650 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 00:08:30,825 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 00:08:30,827 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 00:08:31,179 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 00:08:31,186 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 00:08:31,187 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 00:08:31,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:08:31 BoogieIcfgContainer [2023-09-01 00:08:31,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 00:08:31,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 00:08:31,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 00:08:31,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 00:08:31,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 12:08:29" (1/3) ... [2023-09-01 00:08:31,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c731fde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:08:31, skipping insertion in model container [2023-09-01 00:08:31,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:30" (2/3) ... [2023-09-01 00:08:31,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c731fde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:08:31, skipping insertion in model container [2023-09-01 00:08:31,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:08:31" (3/3) ... [2023-09-01 00:08:31,199 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2023-09-01 00:08:31,215 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 00:08:31,216 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2023-09-01 00:08:31,216 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 00:08:31,314 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 00:08:31,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 117 transitions, 239 flow [2023-09-01 00:08:31,421 INFO L130 PetriNetUnfolder]: 0/116 cut-off events. [2023-09-01 00:08:31,422 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:08:31,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 116 events. 0/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-09-01 00:08:31,426 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 117 transitions, 239 flow [2023-09-01 00:08:31,431 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 116 transitions, 235 flow [2023-09-01 00:08:31,435 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 00:08:31,453 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 116 transitions, 235 flow [2023-09-01 00:08:31,457 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 116 transitions, 235 flow [2023-09-01 00:08:31,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 116 transitions, 235 flow [2023-09-01 00:08:31,498 INFO L130 PetriNetUnfolder]: 0/116 cut-off events. [2023-09-01 00:08:31,498 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:08:31,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 116 events. 0/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-09-01 00:08:31,500 INFO L119 LiptonReduction]: Number of co-enabled transitions 1472 [2023-09-01 00:08:51,848 WARN L222 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 221 DAG size of output: 215 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:08:58,436 INFO L134 LiptonReduction]: Checked pairs total: 6592 [2023-09-01 00:08:58,436 INFO L136 LiptonReduction]: Total number of compositions: 127 [2023-09-01 00:08:58,448 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 00:08:58,452 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@3d735c87, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 00:08:58,453 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-09-01 00:08:58,454 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-09-01 00:08:58,455 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:08:58,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:08:58,455 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 00:08:58,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-09-01 00:08:58,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:08:58,460 INFO L85 PathProgramCache]: Analyzing trace with hash 427, now seen corresponding path program 1 times [2023-09-01 00:08:58,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:08:58,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668708339] [2023-09-01 00:08:58,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:08:58,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:08:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:08:58,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:08:58,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:08:58,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668708339] [2023-09-01 00:08:58,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668708339] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:08:58,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:08:58,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-09-01 00:08:58,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140890640] [2023-09-01 00:08:58,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:08:58,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 00:08:58,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:08:58,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 00:08:58,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 00:08:58,634 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 244 [2023-09-01 00:08:58,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 91 flow. Second operand has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 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) [2023-09-01 00:08:58,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:08:58,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 244 [2023-09-01 00:08:58,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:08:58,786 INFO L130 PetriNetUnfolder]: 120/296 cut-off events. [2023-09-01 00:08:58,786 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:08:58,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 296 events. 120/296 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1301 event pairs, 120 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 556. Up to 265 conditions per place. [2023-09-01 00:08:58,793 INFO L137 encePairwiseOnDemand]: 230/244 looper letters, 24 selfloop transitions, 0 changer transitions 0/30 dead transitions. [2023-09-01 00:08:58,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 30 transitions, 111 flow [2023-09-01 00:08:58,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 00:08:58,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 00:08:58,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 270 transitions. [2023-09-01 00:08:58,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5532786885245902 [2023-09-01 00:08:58,815 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 270 transitions. [2023-09-01 00:08:58,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 270 transitions. [2023-09-01 00:08:58,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:08:58,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 270 transitions. [2023-09-01 00:08:58,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 135.0) internal successors, (270), 2 states have internal predecessors, (270), 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) [2023-09-01 00:08:58,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 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) [2023-09-01 00:08:58,831 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 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) [2023-09-01 00:08:58,832 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 91 flow. Second operand 2 states and 270 transitions. [2023-09-01 00:08:58,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 30 transitions, 111 flow [2023-09-01 00:08:58,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 30 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 00:08:58,836 INFO L231 Difference]: Finished difference. Result has 34 places, 30 transitions, 62 flow [2023-09-01 00:08:58,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=62, PETRI_PLACES=34, PETRI_TRANSITIONS=30} [2023-09-01 00:08:58,841 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -14 predicate places. [2023-09-01 00:08:58,841 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 30 transitions, 62 flow [2023-09-01 00:08:58,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 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) [2023-09-01 00:08:58,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:08:58,842 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 00:08:58,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 00:08:58,843 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-09-01 00:08:58,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:08:58,852 INFO L85 PathProgramCache]: Analyzing trace with hash 12901781, now seen corresponding path program 1 times [2023-09-01 00:08:58,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:08:58,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389608227] [2023-09-01 00:08:58,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:08:58,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:08:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:08:59,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:08:59,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:08:59,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389608227] [2023-09-01 00:08:59,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389608227] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:08:59,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:08:59,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:08:59,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759967714] [2023-09-01 00:08:59,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:08:59,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:08:59,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:08:59,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:08:59,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:08:59,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 244 [2023-09-01 00:08:59,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2023-09-01 00:08:59,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:08:59,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 244 [2023-09-01 00:08:59,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:08:59,346 INFO L130 PetriNetUnfolder]: 124/307 cut-off events. [2023-09-01 00:08:59,347 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:08:59,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 307 events. 124/307 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1365 event pairs, 72 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 590. Up to 187 conditions per place. [2023-09-01 00:08:59,349 INFO L137 encePairwiseOnDemand]: 236/244 looper letters, 34 selfloop transitions, 5 changer transitions 0/43 dead transitions. [2023-09-01 00:08:59,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 43 transitions, 166 flow [2023-09-01 00:08:59,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:08:59,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:08:59,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2023-09-01 00:08:59,351 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48770491803278687 [2023-09-01 00:08:59,351 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 357 transitions. [2023-09-01 00:08:59,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 357 transitions. [2023-09-01 00:08:59,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:08:59,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 357 transitions. [2023-09-01 00:08:59,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2023-09-01 00:08:59,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-09-01 00:08:59,356 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-09-01 00:08:59,356 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 62 flow. Second operand 3 states and 357 transitions. [2023-09-01 00:08:59,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 43 transitions, 166 flow [2023-09-01 00:08:59,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 43 transitions, 166 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 00:08:59,357 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 96 flow [2023-09-01 00:08:59,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2023-09-01 00:08:59,358 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -11 predicate places. [2023-09-01 00:08:59,359 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 96 flow [2023-09-01 00:08:59,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2023-09-01 00:08:59,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:08:59,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 00:08:59,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 00:08:59,360 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-09-01 00:08:59,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:08:59,361 INFO L85 PathProgramCache]: Analyzing trace with hash 12901782, now seen corresponding path program 1 times [2023-09-01 00:08:59,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:08:59,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882094147] [2023-09-01 00:08:59,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:08:59,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:08:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:08:59,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:08:59,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:08:59,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882094147] [2023-09-01 00:08:59,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882094147] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:08:59,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:08:59,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:08:59,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648452079] [2023-09-01 00:08:59,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:08:59,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:08:59,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:08:59,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:08:59,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:08:59,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 244 [2023-09-01 00:08:59,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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) [2023-09-01 00:08:59,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:08:59,552 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 244 [2023-09-01 00:08:59,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:08:59,648 INFO L130 PetriNetUnfolder]: 131/334 cut-off events. [2023-09-01 00:08:59,649 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2023-09-01 00:08:59,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 334 events. 131/334 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1718 event pairs, 17 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 721. Up to 284 conditions per place. [2023-09-01 00:08:59,652 INFO L137 encePairwiseOnDemand]: 241/244 looper letters, 36 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2023-09-01 00:08:59,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 42 transitions, 196 flow [2023-09-01 00:08:59,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:08:59,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:08:59,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2023-09-01 00:08:59,658 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48360655737704916 [2023-09-01 00:08:59,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 354 transitions. [2023-09-01 00:08:59,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 354 transitions. [2023-09-01 00:08:59,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:08:59,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 354 transitions. [2023-09-01 00:08:59,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2023-09-01 00:08:59,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-09-01 00:08:59,662 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-09-01 00:08:59,662 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 96 flow. Second operand 3 states and 354 transitions. [2023-09-01 00:08:59,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 42 transitions, 196 flow [2023-09-01 00:08:59,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:08:59,665 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 94 flow [2023-09-01 00:08:59,665 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2023-09-01 00:08:59,665 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -10 predicate places. [2023-09-01 00:08:59,666 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 94 flow [2023-09-01 00:08:59,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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) [2023-09-01 00:08:59,666 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:08:59,666 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 00:08:59,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 00:08:59,667 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-09-01 00:08:59,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:08:59,667 INFO L85 PathProgramCache]: Analyzing trace with hash 12902409, now seen corresponding path program 1 times [2023-09-01 00:08:59,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:08:59,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428163303] [2023-09-01 00:08:59,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:08:59,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:08:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:08:59,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:08:59,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:08:59,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428163303] [2023-09-01 00:08:59,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428163303] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:08:59,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:08:59,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 00:08:59,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376506636] [2023-09-01 00:08:59,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:08:59,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:08:59,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:08:59,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:08:59,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:08:59,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 244 [2023-09-01 00:08:59,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2023-09-01 00:08:59,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:08:59,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 244 [2023-09-01 00:08:59,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:08:59,993 INFO L130 PetriNetUnfolder]: 143/369 cut-off events. [2023-09-01 00:08:59,994 INFO L131 PetriNetUnfolder]: For 23/24 co-relation queries the response was YES. [2023-09-01 00:08:59,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 369 events. 143/369 cut-off events. For 23/24 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1904 event pairs, 21 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 802. Up to 212 conditions per place. [2023-09-01 00:08:59,996 INFO L137 encePairwiseOnDemand]: 237/244 looper letters, 42 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2023-09-01 00:08:59,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 234 flow [2023-09-01 00:08:59,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:08:59,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:08:59,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-09-01 00:08:59,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5095628415300546 [2023-09-01 00:08:59,998 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-09-01 00:08:59,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-09-01 00:08:59,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:08:59,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-09-01 00:09:00,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2023-09-01 00:09:00,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-09-01 00:09:00,002 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-09-01 00:09:00,002 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 94 flow. Second operand 3 states and 373 transitions. [2023-09-01 00:09:00,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 51 transitions, 234 flow [2023-09-01 00:09:00,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 51 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:09:00,004 INFO L231 Difference]: Finished difference. Result has 40 places, 36 transitions, 132 flow [2023-09-01 00:09:00,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=40, PETRI_TRANSITIONS=36} [2023-09-01 00:09:00,005 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -8 predicate places. [2023-09-01 00:09:00,005 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 132 flow [2023-09-01 00:09:00,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2023-09-01 00:09:00,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:09:00,006 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 00:09:00,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 00:09:00,007 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-09-01 00:09:00,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:09:00,007 INFO L85 PathProgramCache]: Analyzing trace with hash 12902429, now seen corresponding path program 1 times [2023-09-01 00:09:00,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:09:00,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784786712] [2023-09-01 00:09:00,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:09:00,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:09:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:09:00,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:09:00,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:09:00,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784786712] [2023-09-01 00:09:00,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784786712] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:09:00,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:09:00,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 00:09:00,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700975329] [2023-09-01 00:09:00,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:09:00,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:09:00,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:09:00,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:09:00,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:09:00,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 244 [2023-09-01 00:09:00,180 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2023-09-01 00:09:00,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:09:00,180 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 244 [2023-09-01 00:09:00,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:09:00,293 INFO L130 PetriNetUnfolder]: 127/335 cut-off events. [2023-09-01 00:09:00,293 INFO L131 PetriNetUnfolder]: For 91/93 co-relation queries the response was YES. [2023-09-01 00:09:00,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 811 conditions, 335 events. 127/335 cut-off events. For 91/93 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1717 event pairs, 30 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 804. Up to 286 conditions per place. [2023-09-01 00:09:00,295 INFO L137 encePairwiseOnDemand]: 242/244 looper letters, 37 selfloop transitions, 1 changer transitions 0/43 dead transitions. [2023-09-01 00:09:00,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 43 transitions, 216 flow [2023-09-01 00:09:00,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:09:00,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:09:00,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2023-09-01 00:09:00,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5013661202185792 [2023-09-01 00:09:00,298 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2023-09-01 00:09:00,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2023-09-01 00:09:00,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:09:00,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2023-09-01 00:09:00,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2023-09-01 00:09:00,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-09-01 00:09:00,301 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-09-01 00:09:00,301 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 132 flow. Second operand 3 states and 367 transitions. [2023-09-01 00:09:00,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 43 transitions, 216 flow [2023-09-01 00:09:00,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:09:00,304 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 116 flow [2023-09-01 00:09:00,304 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2023-09-01 00:09:00,305 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -9 predicate places. [2023-09-01 00:09:00,305 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 116 flow [2023-09-01 00:09:00,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2023-09-01 00:09:00,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:09:00,306 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 00:09:00,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 00:09:00,306 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-09-01 00:09:00,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:09:00,307 INFO L85 PathProgramCache]: Analyzing trace with hash 399961365, now seen corresponding path program 1 times [2023-09-01 00:09:00,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:09:00,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156421462] [2023-09-01 00:09:00,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:09:00,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:09:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:09:00,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:09:00,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:09:00,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156421462] [2023-09-01 00:09:00,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156421462] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:09:00,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:09:00,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:09:00,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024953231] [2023-09-01 00:09:00,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:09:00,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:09:00,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:09:00,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:09:00,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:09:00,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 244 [2023-09-01 00:09:00,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2023-09-01 00:09:00,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:09:00,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 244 [2023-09-01 00:09:00,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:09:00,619 INFO L130 PetriNetUnfolder]: 114/303 cut-off events. [2023-09-01 00:09:00,620 INFO L131 PetriNetUnfolder]: For 79/82 co-relation queries the response was YES. [2023-09-01 00:09:00,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 728 conditions, 303 events. 114/303 cut-off events. For 79/82 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1453 event pairs, 98 based on Foata normal form. 8/227 useless extension candidates. Maximal degree in co-relation 721. Up to 270 conditions per place. [2023-09-01 00:09:00,621 INFO L137 encePairwiseOnDemand]: 241/244 looper letters, 27 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2023-09-01 00:09:00,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 32 transitions, 166 flow [2023-09-01 00:09:00,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:09:00,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:09:00,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2023-09-01 00:09:00,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47950819672131145 [2023-09-01 00:09:00,624 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2023-09-01 00:09:00,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2023-09-01 00:09:00,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:09:00,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2023-09-01 00:09:00,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2023-09-01 00:09:00,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-09-01 00:09:00,627 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-09-01 00:09:00,627 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 116 flow. Second operand 3 states and 351 transitions. [2023-09-01 00:09:00,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 32 transitions, 166 flow [2023-09-01 00:09:00,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 163 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:09:00,630 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 109 flow [2023-09-01 00:09:00,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2023-09-01 00:09:00,633 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -11 predicate places. [2023-09-01 00:09:00,633 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 109 flow [2023-09-01 00:09:00,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2023-09-01 00:09:00,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:09:00,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 00:09:00,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 00:09:00,637 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-09-01 00:09:00,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:09:00,638 INFO L85 PathProgramCache]: Analyzing trace with hash 399960262, now seen corresponding path program 1 times [2023-09-01 00:09:00,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:09:00,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717430927] [2023-09-01 00:09:00,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:09:00,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:09:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:09:00,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:09:00,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:09:00,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717430927] [2023-09-01 00:09:00,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717430927] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:09:00,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:09:00,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 00:09:00,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769674499] [2023-09-01 00:09:00,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:09:00,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 00:09:00,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:09:00,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 00:09:00,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 00:09:01,040 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 244 [2023-09-01 00:09:01,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 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) [2023-09-01 00:09:01,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:09:01,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 244 [2023-09-01 00:09:01,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:09:01,173 INFO L130 PetriNetUnfolder]: 142/351 cut-off events. [2023-09-01 00:09:01,174 INFO L131 PetriNetUnfolder]: For 53/55 co-relation queries the response was YES. [2023-09-01 00:09:01,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 836 conditions, 351 events. 142/351 cut-off events. For 53/55 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1731 event pairs, 53 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 830. Up to 226 conditions per place. [2023-09-01 00:09:01,176 INFO L137 encePairwiseOnDemand]: 238/244 looper letters, 39 selfloop transitions, 7 changer transitions 0/49 dead transitions. [2023-09-01 00:09:01,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 252 flow [2023-09-01 00:09:01,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 00:09:01,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 00:09:01,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 434 transitions. [2023-09-01 00:09:01,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.444672131147541 [2023-09-01 00:09:01,178 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 434 transitions. [2023-09-01 00:09:01,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 434 transitions. [2023-09-01 00:09:01,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:09:01,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 434 transitions. [2023-09-01 00:09:01,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 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) [2023-09-01 00:09:01,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 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) [2023-09-01 00:09:01,182 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 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) [2023-09-01 00:09:01,182 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 109 flow. Second operand 4 states and 434 transitions. [2023-09-01 00:09:01,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 252 flow [2023-09-01 00:09:01,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 251 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 00:09:01,183 INFO L231 Difference]: Finished difference. Result has 42 places, 36 transitions, 160 flow [2023-09-01 00:09:01,184 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2023-09-01 00:09:01,184 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -6 predicate places. [2023-09-01 00:09:01,184 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 160 flow [2023-09-01 00:09:01,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 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) [2023-09-01 00:09:01,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:09:01,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 00:09:01,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 00:09:01,185 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-09-01 00:09:01,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:09:01,186 INFO L85 PathProgramCache]: Analyzing trace with hash 399960263, now seen corresponding path program 1 times [2023-09-01 00:09:01,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:09:01,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429179451] [2023-09-01 00:09:01,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:09:01,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:09:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:09:01,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:09:01,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:09:01,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429179451] [2023-09-01 00:09:01,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429179451] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:09:01,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:09:01,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 00:09:01,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247665475] [2023-09-01 00:09:01,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:09:01,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 00:09:01,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:09:01,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 00:09:01,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 00:09:01,557 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 244 [2023-09-01 00:09:01,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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) [2023-09-01 00:09:01,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:09:01,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 244 [2023-09-01 00:09:01,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:09:01,668 INFO L130 PetriNetUnfolder]: 141/351 cut-off events. [2023-09-01 00:09:01,668 INFO L131 PetriNetUnfolder]: For 173/175 co-relation queries the response was YES. [2023-09-01 00:09:01,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 931 conditions, 351 events. 141/351 cut-off events. For 173/175 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1742 event pairs, 83 based on Foata normal form. 1/297 useless extension candidates. Maximal degree in co-relation 923. Up to 320 conditions per place. [2023-09-01 00:09:01,670 INFO L137 encePairwiseOnDemand]: 241/244 looper letters, 38 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2023-09-01 00:09:01,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 43 transitions, 258 flow [2023-09-01 00:09:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:09:01,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:09:01,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 320 transitions. [2023-09-01 00:09:01,672 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4371584699453552 [2023-09-01 00:09:01,672 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 320 transitions. [2023-09-01 00:09:01,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 320 transitions. [2023-09-01 00:09:01,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:09:01,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 320 transitions. [2023-09-01 00:09:01,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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) [2023-09-01 00:09:01,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-09-01 00:09:01,675 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-09-01 00:09:01,675 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 160 flow. Second operand 3 states and 320 transitions. [2023-09-01 00:09:01,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 43 transitions, 258 flow [2023-09-01 00:09:01,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 43 transitions, 258 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 00:09:01,677 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 168 flow [2023-09-01 00:09:01,677 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2023-09-01 00:09:01,678 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-09-01 00:09:01,678 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 168 flow [2023-09-01 00:09:01,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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) [2023-09-01 00:09:01,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:09:01,678 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 00:09:01,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 00:09:01,679 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-09-01 00:09:01,679 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:09:01,680 INFO L85 PathProgramCache]: Analyzing trace with hash -486130822, now seen corresponding path program 1 times [2023-09-01 00:09:01,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:09:01,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459241910] [2023-09-01 00:09:01,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:09:01,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:09:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:09:02,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:09:02,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:09:02,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459241910] [2023-09-01 00:09:02,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459241910] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:09:02,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:09:02,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 00:09:02,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669469861] [2023-09-01 00:09:02,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:09:02,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 00:09:02,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:09:02,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 00:09:02,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 00:09:02,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 244 [2023-09-01 00:09:02,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 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) [2023-09-01 00:09:02,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:09:02,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 244 [2023-09-01 00:09:02,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:09:02,429 INFO L130 PetriNetUnfolder]: 198/508 cut-off events. [2023-09-01 00:09:02,429 INFO L131 PetriNetUnfolder]: For 243/249 co-relation queries the response was YES. [2023-09-01 00:09:02,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1343 conditions, 508 events. 198/508 cut-off events. For 243/249 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2980 event pairs, 100 based on Foata normal form. 9/424 useless extension candidates. Maximal degree in co-relation 1333. Up to 222 conditions per place. [2023-09-01 00:09:02,432 INFO L137 encePairwiseOnDemand]: 240/244 looper letters, 51 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2023-09-01 00:09:02,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 59 transitions, 354 flow [2023-09-01 00:09:02,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 00:09:02,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 00:09:02,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 443 transitions. [2023-09-01 00:09:02,434 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45389344262295084 [2023-09-01 00:09:02,434 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 443 transitions. [2023-09-01 00:09:02,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 443 transitions. [2023-09-01 00:09:02,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:09:02,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 443 transitions. [2023-09-01 00:09:02,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 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) [2023-09-01 00:09:02,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 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) [2023-09-01 00:09:02,438 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 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) [2023-09-01 00:09:02,438 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 168 flow. Second operand 4 states and 443 transitions. [2023-09-01 00:09:02,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 59 transitions, 354 flow [2023-09-01 00:09:02,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 59 transitions, 350 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:09:02,441 INFO L231 Difference]: Finished difference. Result has 48 places, 36 transitions, 186 flow [2023-09-01 00:09:02,441 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=48, PETRI_TRANSITIONS=36} [2023-09-01 00:09:02,442 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2023-09-01 00:09:02,442 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 186 flow [2023-09-01 00:09:02,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 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) [2023-09-01 00:09:02,442 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:09:02,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:09:02,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 00:09:02,443 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-09-01 00:09:02,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:09:02,443 INFO L85 PathProgramCache]: Analyzing trace with hash 2110938814, now seen corresponding path program 1 times [2023-09-01 00:09:02,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:09:02,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616910300] [2023-09-01 00:09:02,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:09:02,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:09:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:09:02,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:09:02,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:09:02,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616910300] [2023-09-01 00:09:02,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616910300] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:09:02,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:09:02,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 00:09:02,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454883170] [2023-09-01 00:09:02,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:09:02,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 00:09:02,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:09:02,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 00:09:02,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-09-01 00:09:03,060 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 244 [2023-09-01 00:09:03,061 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 89.16666666666667) internal successors, (535), 6 states have internal predecessors, (535), 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) [2023-09-01 00:09:03,061 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:09:03,061 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 244 [2023-09-01 00:09:03,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:09:03,255 INFO L130 PetriNetUnfolder]: 215/547 cut-off events. [2023-09-01 00:09:03,255 INFO L131 PetriNetUnfolder]: For 376/376 co-relation queries the response was YES. [2023-09-01 00:09:03,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1500 conditions, 547 events. 215/547 cut-off events. For 376/376 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3208 event pairs, 117 based on Foata normal form. 8/437 useless extension candidates. Maximal degree in co-relation 1488. Up to 384 conditions per place. [2023-09-01 00:09:03,258 INFO L137 encePairwiseOnDemand]: 236/244 looper letters, 45 selfloop transitions, 10 changer transitions 0/56 dead transitions. [2023-09-01 00:09:03,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 56 transitions, 387 flow [2023-09-01 00:09:03,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 00:09:03,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 00:09:03,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 489 transitions. [2023-09-01 00:09:03,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40081967213114755 [2023-09-01 00:09:03,261 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 489 transitions. [2023-09-01 00:09:03,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 489 transitions. [2023-09-01 00:09:03,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:09:03,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 489 transitions. [2023-09-01 00:09:03,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 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) [2023-09-01 00:09:03,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 244.0) internal successors, (1464), 6 states have internal predecessors, (1464), 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) [2023-09-01 00:09:03,265 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 244.0) internal successors, (1464), 6 states have internal predecessors, (1464), 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) [2023-09-01 00:09:03,265 INFO L175 Difference]: Start difference. First operand has 48 places, 36 transitions, 186 flow. Second operand 5 states and 489 transitions. [2023-09-01 00:09:03,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 56 transitions, 387 flow [2023-09-01 00:09:03,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 56 transitions, 371 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-09-01 00:09:03,268 INFO L231 Difference]: Finished difference. Result has 53 places, 42 transitions, 267 flow [2023-09-01 00:09:03,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=267, PETRI_PLACES=53, PETRI_TRANSITIONS=42} [2023-09-01 00:09:03,268 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 5 predicate places. [2023-09-01 00:09:03,269 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 42 transitions, 267 flow [2023-09-01 00:09:03,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.16666666666667) internal successors, (535), 6 states have internal predecessors, (535), 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) [2023-09-01 00:09:03,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:09:03,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:09:03,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 00:09:03,270 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-09-01 00:09:03,270 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:09:03,270 INFO L85 PathProgramCache]: Analyzing trace with hash 2110938815, now seen corresponding path program 1 times [2023-09-01 00:09:03,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:09:03,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570561925] [2023-09-01 00:09:03,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:09:03,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:09:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:09:03,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:09:03,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:09:03,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570561925] [2023-09-01 00:09:03,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570561925] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:09:03,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:09:03,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 00:09:03,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034779193] [2023-09-01 00:09:03,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:09:03,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 00:09:03,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:09:03,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 00:09:03,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-09-01 00:09:03,996 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 244 [2023-09-01 00:09:03,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 42 transitions, 267 flow. Second operand has 6 states, 6 states have (on average 92.16666666666667) internal successors, (553), 6 states have internal predecessors, (553), 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) [2023-09-01 00:09:03,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:09:03,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 244 [2023-09-01 00:09:03,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:09:04,308 INFO L130 PetriNetUnfolder]: 298/793 cut-off events. [2023-09-01 00:09:04,308 INFO L131 PetriNetUnfolder]: For 807/813 co-relation queries the response was YES. [2023-09-01 00:09:04,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2288 conditions, 793 events. 298/793 cut-off events. For 807/813 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5323 event pairs, 89 based on Foata normal form. 8/659 useless extension candidates. Maximal degree in co-relation 2274. Up to 216 conditions per place. [2023-09-01 00:09:04,313 INFO L137 encePairwiseOnDemand]: 235/244 looper letters, 76 selfloop transitions, 25 changer transitions 0/104 dead transitions. [2023-09-01 00:09:04,314 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 104 transitions, 711 flow [2023-09-01 00:09:04,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-01 00:09:04,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-09-01 00:09:04,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1001 transitions. [2023-09-01 00:09:04,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41024590163934427 [2023-09-01 00:09:04,317 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1001 transitions. [2023-09-01 00:09:04,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1001 transitions. [2023-09-01 00:09:04,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:09:04,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1001 transitions. [2023-09-01 00:09:04,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 100.1) internal successors, (1001), 10 states have internal predecessors, (1001), 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) [2023-09-01 00:09:04,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 244.0) internal successors, (2684), 11 states have internal predecessors, (2684), 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) [2023-09-01 00:09:04,324 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 244.0) internal successors, (2684), 11 states have internal predecessors, (2684), 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) [2023-09-01 00:09:04,324 INFO L175 Difference]: Start difference. First operand has 53 places, 42 transitions, 267 flow. Second operand 10 states and 1001 transitions. [2023-09-01 00:09:04,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 104 transitions, 711 flow [2023-09-01 00:09:04,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 104 transitions, 709 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-09-01 00:09:04,329 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 440 flow [2023-09-01 00:09:04,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=440, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2023-09-01 00:09:04,330 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2023-09-01 00:09:04,330 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 440 flow [2023-09-01 00:09:04,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.16666666666667) internal successors, (553), 6 states have internal predecessors, (553), 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) [2023-09-01 00:09:04,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:09:04,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:09:04,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 00:09:04,331 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-09-01 00:09:04,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:09:04,331 INFO L85 PathProgramCache]: Analyzing trace with hash 977157887, now seen corresponding path program 1 times [2023-09-01 00:09:04,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:09:04,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212298343] [2023-09-01 00:09:04,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:09:04,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:09:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:09:04,356 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 00:09:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:09:04,387 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 00:09:04,388 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 00:09:04,389 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK (37 of 38 remaining) [2023-09-01 00:09:04,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 38 remaining) [2023-09-01 00:09:04,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 38 remaining) [2023-09-01 00:09:04,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 38 remaining) [2023-09-01 00:09:04,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 38 remaining) [2023-09-01 00:09:04,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 38 remaining) [2023-09-01 00:09:04,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 38 remaining) [2023-09-01 00:09:04,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 38 remaining) [2023-09-01 00:09:04,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 38 remaining) [2023-09-01 00:09:04,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 38 remaining) [2023-09-01 00:09:04,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 38 remaining) [2023-09-01 00:09:04,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 38 remaining) [2023-09-01 00:09:04,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 38 remaining) [2023-09-01 00:09:04,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 38 remaining) [2023-09-01 00:09:04,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 38 remaining) [2023-09-01 00:09:04,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 38 remaining) [2023-09-01 00:09:04,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 38 remaining) [2023-09-01 00:09:04,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 38 remaining) [2023-09-01 00:09:04,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 38 remaining) [2023-09-01 00:09:04,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 38 remaining) [2023-09-01 00:09:04,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 38 remaining) [2023-09-01 00:09:04,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 38 remaining) [2023-09-01 00:09:04,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 38 remaining) [2023-09-01 00:09:04,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 38 remaining) [2023-09-01 00:09:04,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 38 remaining) [2023-09-01 00:09:04,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 38 remaining) [2023-09-01 00:09:04,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 38 remaining) [2023-09-01 00:09:04,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 38 remaining) [2023-09-01 00:09:04,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 38 remaining) [2023-09-01 00:09:04,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 38 remaining) [2023-09-01 00:09:04,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 38 remaining) [2023-09-01 00:09:04,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 38 remaining) [2023-09-01 00:09:04,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 38 remaining) [2023-09-01 00:09:04,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 38 remaining) [2023-09-01 00:09:04,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 38 remaining) [2023-09-01 00:09:04,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 38 remaining) [2023-09-01 00:09:04,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 38 remaining) [2023-09-01 00:09:04,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 38 remaining) [2023-09-01 00:09:04,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-09-01 00:09:04,397 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:09:04,402 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 00:09:04,402 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 00:09:04,409 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,410 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2023-09-01 00:09:04,410 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,410 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2023-09-01 00:09:04,410 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,410 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2023-09-01 00:09:04,411 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,411 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2023-09-01 00:09:04,411 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,411 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2023-09-01 00:09:04,411 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,412 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2023-09-01 00:09:04,412 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,412 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2023-09-01 00:09:04,412 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,412 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2023-09-01 00:09:04,413 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,413 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2023-09-01 00:09:04,413 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,413 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2023-09-01 00:09:04,413 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,414 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2023-09-01 00:09:04,414 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,414 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2023-09-01 00:09:04,414 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,414 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2023-09-01 00:09:04,414 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,415 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2023-09-01 00:09:04,415 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,415 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2023-09-01 00:09:04,415 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,415 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2023-09-01 00:09:04,415 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,416 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2023-09-01 00:09:04,416 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,416 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2023-09-01 00:09:04,416 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,416 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2023-09-01 00:09:04,417 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,417 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2023-09-01 00:09:04,417 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,417 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2023-09-01 00:09:04,417 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,418 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2023-09-01 00:09:04,418 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,418 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2023-09-01 00:09:04,418 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,418 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2023-09-01 00:09:04,418 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,419 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2023-09-01 00:09:04,419 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,419 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2023-09-01 00:09:04,419 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,419 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2023-09-01 00:09:04,420 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,420 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2023-09-01 00:09:04,420 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,420 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2023-09-01 00:09:04,420 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,420 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2023-09-01 00:09:04,421 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,421 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2023-09-01 00:09:04,421 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,421 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2023-09-01 00:09:04,421 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,422 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2023-09-01 00:09:04,422 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,422 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2023-09-01 00:09:04,422 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,422 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2023-09-01 00:09:04,423 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,423 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2023-09-01 00:09:04,423 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,423 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2023-09-01 00:09:04,423 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,423 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2023-09-01 00:09:04,424 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,424 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2023-09-01 00:09:04,424 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-09-01 00:09:04,424 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2023-09-01 00:09:04,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 12:09:04 BasicIcfg [2023-09-01 00:09:04,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 00:09:04,437 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 00:09:04,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 00:09:04,438 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 00:09:04,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:08:31" (3/4) ... [2023-09-01 00:09:04,440 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-09-01 00:09:04,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 00:09:04,441 INFO L158 Benchmark]: Toolchain (without parser) took 34742.99ms. Allocated memory was 75.5MB in the beginning and 182.5MB in the end (delta: 107.0MB). Free memory was 51.1MB in the beginning and 84.5MB in the end (delta: -33.4MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. [2023-09-01 00:09:04,441 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 58.7MB. Free memory was 36.6MB in the beginning and 36.5MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:09:04,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 763.00ms. Allocated memory is still 75.5MB. Free memory was 50.9MB in the beginning and 31.1MB in the end (delta: 19.8MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2023-09-01 00:09:04,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.51ms. Allocated memory is still 75.5MB. Free memory was 31.1MB in the beginning and 53.1MB in the end (delta: -22.0MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2023-09-01 00:09:04,442 INFO L158 Benchmark]: Boogie Preprocessor took 25.53ms. Allocated memory is still 75.5MB. Free memory was 53.1MB in the beginning and 51.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:09:04,442 INFO L158 Benchmark]: RCFGBuilder took 618.46ms. Allocated memory is still 75.5MB. Free memory was 51.4MB in the beginning and 31.7MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-09-01 00:09:04,443 INFO L158 Benchmark]: TraceAbstraction took 33245.96ms. Allocated memory was 75.5MB in the beginning and 182.5MB in the end (delta: 107.0MB). Free memory was 31.3MB in the beginning and 85.5MB in the end (delta: -54.2MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. [2023-09-01 00:09:04,443 INFO L158 Benchmark]: Witness Printer took 3.03ms. Allocated memory is still 182.5MB. Free memory was 85.5MB in the beginning and 84.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:09:04,444 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 58.7MB. Free memory was 36.6MB in the beginning and 36.5MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 763.00ms. Allocated memory is still 75.5MB. Free memory was 50.9MB in the beginning and 31.1MB in the end (delta: 19.8MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.51ms. Allocated memory is still 75.5MB. Free memory was 31.1MB in the beginning and 53.1MB in the end (delta: -22.0MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.53ms. Allocated memory is still 75.5MB. Free memory was 53.1MB in the beginning and 51.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 618.46ms. Allocated memory is still 75.5MB. Free memory was 51.4MB in the beginning and 31.7MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 33245.96ms. Allocated memory was 75.5MB in the beginning and 182.5MB in the end (delta: 107.0MB). Free memory was 31.3MB in the beginning and 85.5MB in the end (delta: -54.2MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. * Witness Printer took 3.03ms. Allocated memory is still 182.5MB. Free memory was 85.5MB in the beginning and 84.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.0s, 120 PlacesBefore, 48 PlacesAfterwards, 116 TransitionsBefore, 44 TransitionsAfterwards, 1472 CoEnabledTransitionPairs, 7 FixpointIterations, 87 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 127 TotalNumberOfCompositions, 6592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2605, independent: 2242, independent conditional: 0, independent unconditional: 2242, dependent: 363, dependent conditional: 0, dependent unconditional: 363, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 836, independent: 776, independent conditional: 0, independent unconditional: 776, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2605, independent: 1466, independent conditional: 0, independent unconditional: 1466, dependent: 303, dependent conditional: 0, dependent unconditional: 303, unknown: 836, unknown conditional: 0, unknown unconditional: 836] , Statistics on independence cache: Total cache size (in pairs): 165, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 1244]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1244. Possible FailurePath: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A; [L1231] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1232] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1245] 0 pthread_t t1; [L1246] 0 struct s *p = malloc(sizeof(struct s)); [L1247] CALL 0 init(p,9) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1247] RET 0 init(p,9) [L1248] 0 A = malloc(sizeof(struct s)) [L1249] CALL 0 init(A,3) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1249] RET 0 init(A,3) [L1250] 0 A->next = p [L1251] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={5:0}, A_mutex={1:0}, B_mutex=0, B_mutex=0, B_mutex=0, B_mutex=0, B_mutex=0, p={2:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={7:0}] [L1253] EXPR 0 A->next [L1253] 0 p = A->next [L1254] 0 p->datum [L1256] 0 return 0; [L1256] 0 return 0; - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 152 locations, 38 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: 33.1s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 27.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1616 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 864 mSDsluCounter, 378 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 163 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2149 IncrementalHoareTripleChecker+Invalid, 2267 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 215 mSDtfsCounter, 2149 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=440occurred in iteration=11, InterpolantAutomatonStates: 43, 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, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 720 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-09-01 00:09:04,479 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 00:09:06,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 00:09:06,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 00:09:06,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 00:09:06,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 00:09:06,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 00:09:06,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 00:09:06,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 00:09:06,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 00:09:06,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 00:09:06,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 00:09:06,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 00:09:06,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 00:09:06,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 00:09:06,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 00:09:06,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 00:09:06,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 00:09:06,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 00:09:06,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 00:09:06,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 00:09:06,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 00:09:06,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 00:09:06,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 00:09:06,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 00:09:06,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 00:09:06,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 00:09:06,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 00:09:06,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 00:09:06,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 00:09:06,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 00:09:06,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 00:09:06,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 00:09:06,491 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 00:09:06,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 00:09:06,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 00:09:06,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 00:09:06,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 00:09:06,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 00:09:06,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 00:09:06,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 00:09:06,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 00:09:06,497 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-09-01 00:09:06,530 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 00:09:06,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 00:09:06,531 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 00:09:06,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 00:09:06,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 00:09:06,532 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 00:09:06,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 00:09:06,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 00:09:06,533 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 00:09:06,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 00:09:06,534 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 00:09:06,534 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 00:09:06,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 00:09:06,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 00:09:06,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 00:09:06,535 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-09-01 00:09:06,535 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-09-01 00:09:06,535 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-09-01 00:09:06,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 00:09:06,536 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-09-01 00:09:06,536 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-09-01 00:09:06,536 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-09-01 00:09:06,536 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 00:09:06,536 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 00:09:06,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 00:09:06,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 00:09:06,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 00:09:06,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:09:06,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 00:09:06,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 00:09:06,538 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-09-01 00:09:06,538 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-09-01 00:09:06,538 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 00:09:06,538 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 00:09:06,539 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 00:09:06,539 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-09-01 00:09:06,539 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 00:09:06,539 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 00:09:06,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 00:09:06,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 00:09:06,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 00:09:06,885 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 00:09:06,886 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 00:09:06,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i [2023-09-01 00:09:08,099 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 00:09:08,413 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 00:09:08,414 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i [2023-09-01 00:09:08,428 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d7ce3df4/daa0b5b504444356a7ae60da276b4a61/FLAGb96109cfa [2023-09-01 00:09:08,444 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d7ce3df4/daa0b5b504444356a7ae60da276b4a61 [2023-09-01 00:09:08,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 00:09:08,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 00:09:08,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 00:09:08,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 00:09:08,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 00:09:08,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:09:08" (1/1) ... [2023-09-01 00:09:08,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65eb5aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:09:08, skipping insertion in model container [2023-09-01 00:09:08,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:09:08" (1/1) ... [2023-09-01 00:09:08,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 00:09:08,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 00:09:09,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:09:09,031 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 00:09:09,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:09:09,153 INFO L208 MainTranslator]: Completed translation [2023-09-01 00:09:09,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:09:09 WrapperNode [2023-09-01 00:09:09,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 00:09:09,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 00:09:09,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 00:09:09,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 00:09:09,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:09:09" (1/1) ... [2023-09-01 00:09:09,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:09:09" (1/1) ... [2023-09-01 00:09:09,235 INFO L138 Inliner]: procedures = 369, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 81 [2023-09-01 00:09:09,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 00:09:09,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 00:09:09,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 00:09:09,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 00:09:09,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:09:09" (1/1) ... [2023-09-01 00:09:09,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:09:09" (1/1) ... [2023-09-01 00:09:09,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:09:09" (1/1) ... [2023-09-01 00:09:09,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:09:09" (1/1) ... [2023-09-01 00:09:09,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:09:09" (1/1) ... [2023-09-01 00:09:09,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:09:09" (1/1) ... [2023-09-01 00:09:09,282 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:09:09" (1/1) ... [2023-09-01 00:09:09,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:09:09" (1/1) ... [2023-09-01 00:09:09,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 00:09:09,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 00:09:09,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 00:09:09,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 00:09:09,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:09:09" (1/1) ... [2023-09-01 00:09:09,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:09:09,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 00:09:09,330 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) [2023-09-01 00:09:09,349 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 [2023-09-01 00:09:09,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-09-01 00:09:09,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 00:09:09,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-09-01 00:09:09,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 00:09:09,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-09-01 00:09:09,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-09-01 00:09:09,372 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 00:09:09,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-01 00:09:09,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 00:09:09,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-09-01 00:09:09,372 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 00:09:09,373 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 00:09:09,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 00:09:09,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 00:09:09,374 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 00:09:09,563 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 00:09:09,564 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 00:09:09,951 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 00:09:09,957 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 00:09:09,958 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 00:09:09,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:09:09 BoogieIcfgContainer [2023-09-01 00:09:09,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 00:09:09,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 00:09:09,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 00:09:09,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 00:09:09,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 12:09:08" (1/3) ... [2023-09-01 00:09:09,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d4d9e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:09:09, skipping insertion in model container [2023-09-01 00:09:09,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:09:09" (2/3) ... [2023-09-01 00:09:09,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d4d9e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:09:09, skipping insertion in model container [2023-09-01 00:09:09,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:09:09" (3/3) ... [2023-09-01 00:09:09,966 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2023-09-01 00:09:09,992 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 00:09:09,993 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2023-09-01 00:09:09,993 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 00:09:10,064 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 00:09:10,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 118 transitions, 241 flow [2023-09-01 00:09:10,160 INFO L130 PetriNetUnfolder]: 0/117 cut-off events. [2023-09-01 00:09:10,161 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:09:10,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 117 events. 0/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-09-01 00:09:10,164 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 118 transitions, 241 flow [2023-09-01 00:09:10,167 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 117 transitions, 237 flow [2023-09-01 00:09:10,171 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 00:09:10,186 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 117 transitions, 237 flow [2023-09-01 00:09:10,192 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 117 transitions, 237 flow [2023-09-01 00:09:10,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 117 transitions, 237 flow [2023-09-01 00:09:10,233 INFO L130 PetriNetUnfolder]: 0/117 cut-off events. [2023-09-01 00:09:10,234 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:09:10,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 117 events. 0/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-09-01 00:09:10,236 INFO L119 LiptonReduction]: Number of co-enabled transitions 1472 [2023-09-01 00:09:45,164 WARN L222 SmtUtils]: Spent 11.80s on a formula simplification. DAG size of input: 92 DAG size of output: 91 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:09:58,204 WARN L222 SmtUtils]: Spent 9.66s on a formula simplification. DAG size of input: 92 DAG size of output: 91 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:10:38,957 WARN L222 SmtUtils]: Spent 24.33s on a formula simplification that was a NOOP. DAG size: 168 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:10:58,089 WARN L222 SmtUtils]: Spent 19.13s on a formula simplification that was a NOOP. DAG size: 149 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:11:20,506 WARN L222 SmtUtils]: Spent 22.41s on a formula simplification that was a NOOP. DAG size: 167 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:11:41,609 WARN L222 SmtUtils]: Spent 21.10s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:12:58,774 WARN L222 SmtUtils]: Spent 1.29m on a formula simplification. DAG size of input: 204 DAG size of output: 203 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:13:33,838 WARN L222 SmtUtils]: Spent 35.06s on a formula simplification that was a NOOP. DAG size: 199 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:14:56,396 WARN L222 SmtUtils]: Spent 1.38m on a formula simplification. DAG size of input: 203 DAG size of output: 202 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:15:36,425 WARN L222 SmtUtils]: Spent 40.03s on a formula simplification that was a NOOP. DAG size: 198 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:19:22,687 WARN L222 SmtUtils]: Spent 3.77m on a formula simplification. DAG size of input: 226 DAG size of output: 221 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:21:07,909 WARN L222 SmtUtils]: Spent 1.75m on a formula simplification that was a NOOP. DAG size: 217 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) Killed by 15