./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.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/28-race_reach_84-list2_racing2.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 f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --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 00:55:44,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 00:55:44,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 00:55:44,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 00:55:44,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 00:55:44,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 00:55:44,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 00:55:44,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 00:55:44,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 00:55:44,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 00:55:44,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 00:55:44,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 00:55:44,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 00:55:44,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 00:55:44,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 00:55:44,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 00:55:44,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 00:55:44,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 00:55:44,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 00:55:44,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 00:55:44,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 00:55:44,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 00:55:44,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 00:55:44,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 00:55:44,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 00:55:44,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 00:55:44,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 00:55:44,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 00:55:44,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 00:55:44,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 00:55:44,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 00:55:44,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 00:55:44,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 00:55:44,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 00:55:44,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 00:55:44,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 00:55:44,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 00:55:44,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 00:55:44,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 00:55:44,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 00:55:44,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 00:55:44,846 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-09-01 00:55:44,879 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 00:55:44,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 00:55:44,881 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 00:55:44,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 00:55:44,882 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 00:55:44,882 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 00:55:44,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 00:55:44,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 00:55:44,883 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 00:55:44,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 00:55:44,885 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 00:55:44,885 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 00:55:44,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 00:55:44,885 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 00:55:44,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 00:55:44,886 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-09-01 00:55:44,886 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-09-01 00:55:44,886 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-09-01 00:55:44,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 00:55:44,887 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-09-01 00:55:44,887 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 00:55:44,887 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 00:55:44,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 00:55:44,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 00:55:44,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 00:55:44,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:55:44,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 00:55:44,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 00:55:44,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 00:55:44,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 00:55:44,889 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 00:55:44,890 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 00:55:44,890 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 00:55:44,890 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 00:55:44,890 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 00:55:45,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 00:55:45,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 00:55:45,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 00:55:45,240 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 00:55:45,241 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 00:55:45,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i [2023-09-01 00:55:46,453 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 00:55:46,764 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 00:55:46,765 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i [2023-09-01 00:55:46,790 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d853c4c60/d810f691b717431eb8b40b56986980d6/FLAGd3249c90f [2023-09-01 00:55:46,812 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d853c4c60/d810f691b717431eb8b40b56986980d6 [2023-09-01 00:55:46,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 00:55:46,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 00:55:46,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 00:55:46,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 00:55:46,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 00:55:46,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:55:46" (1/1) ... [2023-09-01 00:55:46,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc7579d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:55:46, skipping insertion in model container [2023-09-01 00:55:46,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:55:46" (1/1) ... [2023-09-01 00:55:46,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 00:55:46,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 00:55:47,297 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2023-09-01 00:55:47,345 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:55:47,368 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 00:55:47,411 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2023-09-01 00:55:47,449 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:55:47,521 INFO L208 MainTranslator]: Completed translation [2023-09-01 00:55:47,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:55:47 WrapperNode [2023-09-01 00:55:47,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 00:55:47,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 00:55:47,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 00:55:47,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 00:55:47,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:55:47" (1/1) ... [2023-09-01 00:55:47,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:55:47" (1/1) ... [2023-09-01 00:55:47,605 INFO L138 Inliner]: procedures = 279, calls = 88, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 384 [2023-09-01 00:55:47,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 00:55:47,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 00:55:47,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 00:55:47,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 00:55:47,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:55:47" (1/1) ... [2023-09-01 00:55:47,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:55:47" (1/1) ... [2023-09-01 00:55:47,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:55:47" (1/1) ... [2023-09-01 00:55:47,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:55:47" (1/1) ... [2023-09-01 00:55:47,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:55:47" (1/1) ... [2023-09-01 00:55:47,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:55:47" (1/1) ... [2023-09-01 00:55:47,673 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:55:47" (1/1) ... [2023-09-01 00:55:47,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:55:47" (1/1) ... [2023-09-01 00:55:47,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 00:55:47,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 00:55:47,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 00:55:47,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 00:55:47,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:55:47" (1/1) ... [2023-09-01 00:55:47,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:55:47,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 00:55:47,726 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 00:55:47,737 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 00:55:47,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 00:55:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-09-01 00:55:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-09-01 00:55:47,762 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-09-01 00:55:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 00:55:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 00:55:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-09-01 00:55:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-09-01 00:55:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 00:55:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 00:55:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-01 00:55:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 00:55:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-09-01 00:55:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-09-01 00:55:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-09-01 00:55:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 00:55:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 00:55:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 00:55:47,771 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 00:55:48,012 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 00:55:48,015 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 00:55:48,694 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 00:55:48,702 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 00:55:48,702 INFO L302 CfgBuilder]: Removed 29 assume(true) statements. [2023-09-01 00:55:48,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:55:48 BoogieIcfgContainer [2023-09-01 00:55:48,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 00:55:48,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 00:55:48,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 00:55:48,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 00:55:48,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 12:55:46" (1/3) ... [2023-09-01 00:55:48,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627fee4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:55:48, skipping insertion in model container [2023-09-01 00:55:48,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:55:47" (2/3) ... [2023-09-01 00:55:48,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627fee4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:55:48, skipping insertion in model container [2023-09-01 00:55:48,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:55:48" (3/3) ... [2023-09-01 00:55:48,712 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2023-09-01 00:55:48,725 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 00:55:48,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2023-09-01 00:55:48,726 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 00:55:48,834 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-09-01 00:55:48,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 424 places, 465 transitions, 972 flow [2023-09-01 00:55:49,362 INFO L130 PetriNetUnfolder]: 188/1698 cut-off events. [2023-09-01 00:55:49,363 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2023-09-01 00:55:49,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1759 conditions, 1698 events. 188/1698 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12356 event pairs, 0 based on Foata normal form. 0/1236 useless extension candidates. Maximal degree in co-relation 870. Up to 16 conditions per place. [2023-09-01 00:55:49,395 INFO L82 GeneralOperation]: Start removeDead. Operand has 424 places, 465 transitions, 972 flow [2023-09-01 00:55:49,414 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 414 places, 455 transitions, 952 flow [2023-09-01 00:55:49,418 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 00:55:49,432 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 414 places, 455 transitions, 952 flow [2023-09-01 00:55:49,439 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 414 places, 455 transitions, 952 flow [2023-09-01 00:55:49,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 414 places, 455 transitions, 952 flow [2023-09-01 00:55:49,908 INFO L130 PetriNetUnfolder]: 188/1686 cut-off events. [2023-09-01 00:55:49,909 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2023-09-01 00:55:49,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1747 conditions, 1686 events. 188/1686 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12280 event pairs, 0 based on Foata normal form. 0/1236 useless extension candidates. Maximal degree in co-relation 860. Up to 16 conditions per place. [2023-09-01 00:55:49,998 INFO L119 LiptonReduction]: Number of co-enabled transitions 98616 [2023-09-01 00:56:09,703 INFO L134 LiptonReduction]: Checked pairs total: 266977 [2023-09-01 00:56:09,704 INFO L136 LiptonReduction]: Total number of compositions: 373 [2023-09-01 00:56:09,716 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 00:56:09,721 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;@180ba5f3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 00:56:09,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-09-01 00:56:09,729 INFO L130 PetriNetUnfolder]: 4/51 cut-off events. [2023-09-01 00:56:09,730 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:56:09,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:56:09,730 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-09-01 00:56:09,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-01 00:56:09,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:56:09,735 INFO L85 PathProgramCache]: Analyzing trace with hash 461318405, now seen corresponding path program 1 times [2023-09-01 00:56:09,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:56:09,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532298251] [2023-09-01 00:56:09,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:56:09,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:56:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:56:09,947 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 00:56:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:56:10,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 00:56:10,049 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 00:56:10,050 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2023-09-01 00:56:10,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-09-01 00:56:10,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-09-01 00:56:10,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 00:56:10,053 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 00:56:10,059 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN,UNKNOWN (1/2) [2023-09-01 00:56:10,061 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 00:56:10,061 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-09-01 00:56:10,181 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-09-01 00:56:10,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 644 places, 718 transitions, 1526 flow [2023-09-01 00:56:12,779 INFO L130 PetriNetUnfolder]: 1211/7933 cut-off events. [2023-09-01 00:56:12,780 INFO L131 PetriNetUnfolder]: For 602/602 co-relation queries the response was YES. [2023-09-01 00:56:13,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8607 conditions, 7933 events. 1211/7933 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 78032 event pairs, 22 based on Foata normal form. 0/5846 useless extension candidates. Maximal degree in co-relation 4977. Up to 192 conditions per place. [2023-09-01 00:56:13,037 INFO L82 GeneralOperation]: Start removeDead. Operand has 644 places, 718 transitions, 1526 flow [2023-09-01 00:56:13,130 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 634 places, 708 transitions, 1506 flow [2023-09-01 00:56:13,130 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 00:56:13,130 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 634 places, 708 transitions, 1506 flow [2023-09-01 00:56:13,131 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 634 places, 708 transitions, 1506 flow [2023-09-01 00:56:13,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 634 places, 708 transitions, 1506 flow [2023-09-01 00:56:15,646 INFO L130 PetriNetUnfolder]: 1211/7919 cut-off events. [2023-09-01 00:56:15,646 INFO L131 PetriNetUnfolder]: For 602/602 co-relation queries the response was YES. [2023-09-01 00:56:15,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8593 conditions, 7919 events. 1211/7919 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 77928 event pairs, 22 based on Foata normal form. 0/5846 useless extension candidates. Maximal degree in co-relation 4965. Up to 192 conditions per place. [2023-09-01 00:56:16,264 INFO L119 LiptonReduction]: Number of co-enabled transitions 323256 [2023-09-01 00:56:38,585 INFO L134 LiptonReduction]: Checked pairs total: 962501 [2023-09-01 00:56:38,585 INFO L136 LiptonReduction]: Total number of compositions: 545 [2023-09-01 00:56:38,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 00:56:38,595 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;@180ba5f3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 00:56:38,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-09-01 00:56:38,622 INFO L130 PetriNetUnfolder]: 32/253 cut-off events. [2023-09-01 00:56:38,622 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 00:56:38,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:56:38,623 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-09-01 00:56:38,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-01 00:56:38,624 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:56:38,624 INFO L85 PathProgramCache]: Analyzing trace with hash -850962181, now seen corresponding path program 1 times [2023-09-01 00:56:38,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:56:38,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515027759] [2023-09-01 00:56:38,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:56:38,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:56:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:56:38,696 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 00:56:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:56:38,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 00:56:38,747 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 00:56:38,748 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2023-09-01 00:56:38,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-09-01 00:56:38,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-09-01 00:56:38,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 00:56:38,749 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 00:56:38,750 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN,UNKNOWN (1/2) [2023-09-01 00:56:38,754 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 00:56:38,754 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-09-01 00:56:38,870 INFO L144 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2023-09-01 00:56:38,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 864 places, 971 transitions, 2086 flow [2023-09-01 00:56:59,440 INFO L130 PetriNetUnfolder]: 9176/40294 cut-off events. [2023-09-01 00:56:59,440 INFO L131 PetriNetUnfolder]: For 7059/7059 co-relation queries the response was YES. [2023-09-01 00:57:02,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47468 conditions, 40294 events. 9176/40294 cut-off events. For 7059/7059 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 473399 event pairs, 512 based on Foata normal form. 0/30632 useless extension candidates. Maximal degree in co-relation 25736. Up to 2304 conditions per place. [2023-09-01 00:57:02,004 INFO L82 GeneralOperation]: Start removeDead. Operand has 864 places, 971 transitions, 2086 flow [2023-09-01 00:57:03,374 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 854 places, 961 transitions, 2066 flow [2023-09-01 00:57:03,374 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 00:57:03,374 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 854 places, 961 transitions, 2066 flow [2023-09-01 00:57:03,374 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 854 places, 961 transitions, 2066 flow [2023-09-01 00:57:03,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 854 places, 961 transitions, 2066 flow [2023-09-01 00:57:22,874 INFO L130 PetriNetUnfolder]: 9176/40278 cut-off events. [2023-09-01 00:57:22,874 INFO L131 PetriNetUnfolder]: For 7059/7059 co-relation queries the response was YES. [2023-09-01 00:57:25,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47452 conditions, 40278 events. 9176/40278 cut-off events. For 7059/7059 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 473555 event pairs, 512 based on Foata normal form. 0/30632 useless extension candidates. Maximal degree in co-relation 25722. Up to 2304 conditions per place. [2023-09-01 00:57:30,173 INFO L119 LiptonReduction]: Number of co-enabled transitions 673920 [2023-09-01 00:57:56,784 INFO L134 LiptonReduction]: Checked pairs total: 2254700 [2023-09-01 00:57:56,785 INFO L136 LiptonReduction]: Total number of compositions: 726 [2023-09-01 00:57:56,787 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 00:57:56,787 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;@180ba5f3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 00:57:56,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-09-01 00:57:56,825 INFO L130 PetriNetUnfolder]: 106/682 cut-off events. [2023-09-01 00:57:56,825 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2023-09-01 00:57:56,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:57:56,826 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-09-01 00:57:56,826 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-01 00:57:56,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:57:56,826 INFO L85 PathProgramCache]: Analyzing trace with hash 516281387, now seen corresponding path program 1 times [2023-09-01 00:57:56,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:57:56,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220457809] [2023-09-01 00:57:56,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:57:56,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:57:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:57:56,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 00:57:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:57:56,886 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 00:57:56,886 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 00:57:56,886 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2023-09-01 00:57:56,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-09-01 00:57:56,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-09-01 00:57:56,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 00:57:56,887 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 00:57:56,888 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN,UNKNOWN (1/2) [2023-09-01 00:57:56,888 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 00:57:56,888 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-09-01 00:57:56,994 INFO L144 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2023-09-01 00:57:57,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1084 places, 1224 transitions, 2652 flow