./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 00:35:30,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 00:35:30,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 00:35:30,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 00:35:30,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 00:35:30,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 00:35:30,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 00:35:30,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 00:35:30,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 00:35:30,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 00:35:30,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 00:35:30,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 00:35:30,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 00:35:30,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 00:35:30,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 00:35:30,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 00:35:30,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 00:35:30,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 00:35:30,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 00:35:30,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 00:35:30,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 00:35:30,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 00:35:30,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 00:35:30,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 00:35:30,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 00:35:30,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 00:35:30,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 00:35:30,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 00:35:30,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 00:35:30,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 00:35:30,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 00:35:30,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 00:35:30,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 00:35:30,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 00:35:30,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 00:35:30,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 00:35:30,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 00:35:30,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 00:35:30,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 00:35:30,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 00:35:30,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 00:35:30,913 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-31 00:35:30,941 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 00:35:30,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 00:35:30,943 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 00:35:30,943 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 00:35:30,944 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 00:35:30,944 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 00:35:30,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 00:35:30,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 00:35:30,945 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 00:35:30,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 00:35:30,946 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 00:35:30,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 00:35:30,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 00:35:30,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 00:35:30,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 00:35:30,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 00:35:30,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 00:35:30,947 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 00:35:30,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 00:35:30,948 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 00:35:30,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 00:35:30,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 00:35:30,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 00:35:30,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 00:35:30,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:35:30,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 00:35:30,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 00:35:30,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 00:35:30,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 00:35:30,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 00:35:30,950 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 00:35:30,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 00:35:30,951 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 00:35:30,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 00:35:30,951 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 00:35:30,951 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-31 00:35:31,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 00:35:31,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 00:35:31,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 00:35:31,303 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 00:35:31,304 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 00:35:31,305 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-08-31 00:35:32,541 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 00:35:32,832 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 00:35:32,833 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-08-31 00:35:32,861 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25ac1153e/7ef822ace0e74997a1c9e04d7d6ce4cd/FLAG04ec550e1 [2023-08-31 00:35:32,878 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25ac1153e/7ef822ace0e74997a1c9e04d7d6ce4cd [2023-08-31 00:35:32,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 00:35:32,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 00:35:32,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 00:35:32,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 00:35:32,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 00:35:32,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:35:32" (1/1) ... [2023-08-31 00:35:32,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dfac9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:35:32, skipping insertion in model container [2023-08-31 00:35:32,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:35:32" (1/1) ... [2023-08-31 00:35:32,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 00:35:32,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 00:35:33,397 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_94-alloc_region_racing.i[58135,58148] [2023-08-31 00:35:33,431 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:35:33,441 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 00:35:33,484 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_94-alloc_region_racing.i[58135,58148] [2023-08-31 00:35:33,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:35:33,611 INFO L208 MainTranslator]: Completed translation [2023-08-31 00:35:33,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:35:33 WrapperNode [2023-08-31 00:35:33,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 00:35:33,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 00:35:33,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 00:35:33,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 00:35:33,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:35:33" (1/1) ... [2023-08-31 00:35:33,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:35:33" (1/1) ... [2023-08-31 00:35:33,694 INFO L138 Inliner]: procedures = 377, calls = 72, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 238 [2023-08-31 00:35:33,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 00:35:33,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 00:35:33,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 00:35:33,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 00:35:33,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:35:33" (1/1) ... [2023-08-31 00:35:33,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:35:33" (1/1) ... [2023-08-31 00:35:33,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:35:33" (1/1) ... [2023-08-31 00:35:33,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:35:33" (1/1) ... [2023-08-31 00:35:33,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:35:33" (1/1) ... [2023-08-31 00:35:33,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:35:33" (1/1) ... [2023-08-31 00:35:33,734 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:35:33" (1/1) ... [2023-08-31 00:35:33,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:35:33" (1/1) ... [2023-08-31 00:35:33,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 00:35:33,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 00:35:33,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 00:35:33,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 00:35:33,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:35:33" (1/1) ... [2023-08-31 00:35:33,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:35:33,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:35:33,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 00:35:33,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 00:35:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 00:35:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-31 00:35:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 00:35:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-31 00:35:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 00:35:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 00:35:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 00:35:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 00:35:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 00:35:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-31 00:35:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 00:35:33,807 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 00:35:33,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 00:35:33,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 00:35:33,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 00:35:33,809 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 00:35:33,936 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 00:35:33,937 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 00:35:34,383 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 00:35:34,394 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 00:35:34,400 INFO L302 CfgBuilder]: Removed 23 assume(true) statements. [2023-08-31 00:35:34,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:35:34 BoogieIcfgContainer [2023-08-31 00:35:34,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 00:35:34,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 00:35:34,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 00:35:34,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 00:35:34,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 12:35:32" (1/3) ... [2023-08-31 00:35:34,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a99224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:35:34, skipping insertion in model container [2023-08-31 00:35:34,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:35:33" (2/3) ... [2023-08-31 00:35:34,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a99224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:35:34, skipping insertion in model container [2023-08-31 00:35:34,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:35:34" (3/3) ... [2023-08-31 00:35:34,412 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2023-08-31 00:35:34,419 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 00:35:34,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 00:35:34,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-31 00:35:34,428 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 00:35:34,533 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 00:35:34,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 214 places, 240 transitions, 488 flow [2023-08-31 00:35:34,725 INFO L130 PetriNetUnfolder]: 45/343 cut-off events. [2023-08-31 00:35:34,725 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 00:35:34,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 343 events. 45/343 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1028 event pairs, 0 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 186. Up to 8 conditions per place. [2023-08-31 00:35:34,735 INFO L82 GeneralOperation]: Start removeDead. Operand has 214 places, 240 transitions, 488 flow [2023-08-31 00:35:34,754 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 235 transitions, 475 flow [2023-08-31 00:35:34,757 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:35:34,774 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 210 places, 235 transitions, 475 flow [2023-08-31 00:35:34,776 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 210 places, 235 transitions, 475 flow [2023-08-31 00:35:34,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 235 transitions, 475 flow [2023-08-31 00:35:34,819 INFO L130 PetriNetUnfolder]: 44/338 cut-off events. [2023-08-31 00:35:34,819 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:35:34,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 338 events. 44/338 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 978 event pairs, 0 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 186. Up to 8 conditions per place. [2023-08-31 00:35:34,829 INFO L119 LiptonReduction]: Number of co-enabled transitions 17004 [2023-08-31 00:35:44,918 INFO L134 LiptonReduction]: Checked pairs total: 37879 [2023-08-31 00:35:44,919 INFO L136 LiptonReduction]: Total number of compositions: 182 [2023-08-31 00:35:44,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:35:44,937 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@25874e7a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:35:44,937 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-31 00:35:44,944 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2023-08-31 00:35:44,945 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:35:44,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:35:44,945 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-31 00:35:44,946 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-08-31 00:35:44,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:35:44,950 INFO L85 PathProgramCache]: Analyzing trace with hash 568836363, now seen corresponding path program 1 times [2023-08-31 00:35:44,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:35:44,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073290392] [2023-08-31 00:35:44,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:35:44,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:35:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:35:45,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 00:35:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:35:45,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 00:35:45,203 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 00:35:45,204 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-08-31 00:35:45,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-08-31 00:35:45,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2023-08-31 00:35:45,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-08-31 00:35:45,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:35:45,207 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-31 00:35:45,210 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-31 00:35:45,210 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-31 00:35:45,247 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 00:35:45,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 283 places, 320 transitions, 658 flow [2023-08-31 00:35:45,330 INFO L130 PetriNetUnfolder]: 76/550 cut-off events. [2023-08-31 00:35:45,331 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-31 00:35:45,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 550 events. 76/550 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2170 event pairs, 0 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 345. Up to 12 conditions per place. [2023-08-31 00:35:45,336 INFO L82 GeneralOperation]: Start removeDead. Operand has 283 places, 320 transitions, 658 flow [2023-08-31 00:35:45,341 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 283 places, 320 transitions, 658 flow [2023-08-31 00:35:45,341 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:35:45,341 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 283 places, 320 transitions, 658 flow [2023-08-31 00:35:45,342 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 283 places, 320 transitions, 658 flow [2023-08-31 00:35:45,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 283 places, 320 transitions, 658 flow [2023-08-31 00:35:45,421 INFO L130 PetriNetUnfolder]: 76/550 cut-off events. [2023-08-31 00:35:45,422 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-31 00:35:45,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 550 events. 76/550 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2170 event pairs, 0 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 345. Up to 12 conditions per place. [2023-08-31 00:35:45,449 INFO L119 LiptonReduction]: Number of co-enabled transitions 47892 [2023-08-31 00:35:54,462 INFO L134 LiptonReduction]: Checked pairs total: 110000 [2023-08-31 00:35:54,462 INFO L136 LiptonReduction]: Total number of compositions: 238 [2023-08-31 00:35:54,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:35:54,465 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@25874e7a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:35:54,466 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-31 00:35:54,471 INFO L130 PetriNetUnfolder]: 0/35 cut-off events. [2023-08-31 00:35:54,471 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 00:35:54,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:35:54,471 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-31 00:35:54,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-08-31 00:35:54,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:35:54,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1595964270, now seen corresponding path program 1 times [2023-08-31 00:35:54,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:35:54,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855214428] [2023-08-31 00:35:54,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:35:54,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:35:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:35:54,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 00:35:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:35:54,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 00:35:54,616 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 00:35:54,617 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2023-08-31 00:35:54,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-08-31 00:35:54,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2023-08-31 00:35:54,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2023-08-31 00:35:54,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-08-31 00:35:54,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 00:35:54,619 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-31 00:35:54,622 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-31 00:35:54,623 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-31 00:35:54,682 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-31 00:35:54,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 352 places, 400 transitions, 830 flow [2023-08-31 00:35:54,851 INFO L130 PetriNetUnfolder]: 112/788 cut-off events. [2023-08-31 00:35:54,852 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-31 00:35:54,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 788 events. 112/788 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3603 event pairs, 1 based on Foata normal form. 0/665 useless extension candidates. Maximal degree in co-relation 558. Up to 16 conditions per place. [2023-08-31 00:35:54,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 352 places, 400 transitions, 830 flow [2023-08-31 00:35:54,866 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 352 places, 400 transitions, 830 flow [2023-08-31 00:35:54,867 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:35:54,867 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 352 places, 400 transitions, 830 flow [2023-08-31 00:35:54,868 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 352 places, 400 transitions, 830 flow [2023-08-31 00:35:54,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 352 places, 400 transitions, 830 flow [2023-08-31 00:35:55,011 INFO L130 PetriNetUnfolder]: 112/788 cut-off events. [2023-08-31 00:35:55,012 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-31 00:35:55,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 788 events. 112/788 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3603 event pairs, 1 based on Foata normal form. 0/665 useless extension candidates. Maximal degree in co-relation 558. Up to 16 conditions per place. [2023-08-31 00:35:55,069 INFO L119 LiptonReduction]: Number of co-enabled transitions 90792 [2023-08-31 00:36:05,524 INFO L134 LiptonReduction]: Checked pairs total: 213925 [2023-08-31 00:36:05,524 INFO L136 LiptonReduction]: Total number of compositions: 287 [2023-08-31 00:36:05,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:36:05,527 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@25874e7a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:36:05,527 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-31 00:36:05,537 INFO L130 PetriNetUnfolder]: 11/86 cut-off events. [2023-08-31 00:36:05,537 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-31 00:36:05,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:36:05,538 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-31 00:36:05,538 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-08-31 00:36:05,538 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:36:05,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1447458529, now seen corresponding path program 1 times [2023-08-31 00:36:05,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:36:05,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596059127] [2023-08-31 00:36:05,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:36:05,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:36:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:36:05,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 00:36:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:36:05,600 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 00:36:05,601 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 00:36:05,601 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2023-08-31 00:36:05,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-08-31 00:36:05,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2023-08-31 00:36:05,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2023-08-31 00:36:05,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2023-08-31 00:36:05,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-08-31 00:36:05,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 00:36:05,602 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-31 00:36:05,603 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-31 00:36:05,603 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-31 00:36:05,643 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-31 00:36:05,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 421 places, 480 transitions, 1004 flow [2023-08-31 00:36:05,894 INFO L130 PetriNetUnfolder]: 160/1090 cut-off events. [2023-08-31 00:36:05,894 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-08-31 00:36:05,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1145 conditions, 1090 events. 160/1090 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5407 event pairs, 6 based on Foata normal form. 0/921 useless extension candidates. Maximal degree in co-relation 808. Up to 32 conditions per place. [2023-08-31 00:36:05,906 INFO L82 GeneralOperation]: Start removeDead. Operand has 421 places, 480 transitions, 1004 flow [2023-08-31 00:36:05,919 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 421 places, 480 transitions, 1004 flow [2023-08-31 00:36:05,920 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:36:05,920 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 421 places, 480 transitions, 1004 flow [2023-08-31 00:36:05,920 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 421 places, 480 transitions, 1004 flow [2023-08-31 00:36:05,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 421 places, 480 transitions, 1004 flow [2023-08-31 00:36:06,161 INFO L130 PetriNetUnfolder]: 160/1090 cut-off events. [2023-08-31 00:36:06,162 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-08-31 00:36:06,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1145 conditions, 1090 events. 160/1090 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5407 event pairs, 6 based on Foata normal form. 0/921 useless extension candidates. Maximal degree in co-relation 808. Up to 32 conditions per place. [2023-08-31 00:36:06,235 INFO L119 LiptonReduction]: Number of co-enabled transitions 146328 [2023-08-31 00:36:16,635 INFO L134 LiptonReduction]: Checked pairs total: 353513 [2023-08-31 00:36:16,635 INFO L136 LiptonReduction]: Total number of compositions: 342 [2023-08-31 00:36:16,637 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:36:16,638 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@25874e7a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:36:16,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-31 00:36:16,647 INFO L130 PetriNetUnfolder]: 11/94 cut-off events. [2023-08-31 00:36:16,648 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-31 00:36:16,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:36:16,648 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:36:16,648 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-08-31 00:36:16,649 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:36:16,649 INFO L85 PathProgramCache]: Analyzing trace with hash -598749300, now seen corresponding path program 1 times [2023-08-31 00:36:16,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:36:16,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025086919] [2023-08-31 00:36:16,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:36:16,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:36:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:36:16,691 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 00:36:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:36:16,740 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 00:36:16,741 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 00:36:16,741 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-08-31 00:36:16,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-08-31 00:36:16,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-31 00:36:16,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-08-31 00:36:16,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-08-31 00:36:16,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-08-31 00:36:16,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-08-31 00:36:16,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 00:36:16,742 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-31 00:36:16,746 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2023-08-31 00:36:16,746 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 00:36:16,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 12:36:16 BasicIcfg [2023-08-31 00:36:16,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 00:36:16,825 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 00:36:16,826 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 00:36:16,826 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 00:36:16,826 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:35:34" (3/4) ... [2023-08-31 00:36:16,828 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-31 00:36:16,912 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 00:36:16,913 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 00:36:16,913 INFO L158 Benchmark]: Toolchain (without parser) took 44031.77ms. Allocated memory was 73.4MB in the beginning and 251.7MB in the end (delta: 178.3MB). Free memory was 49.7MB in the beginning and 119.4MB in the end (delta: -69.7MB). Peak memory consumption was 108.6MB. Max. memory is 16.1GB. [2023-08-31 00:36:16,914 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 73.4MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:36:16,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 728.39ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 49.4MB in the beginning and 54.9MB in the end (delta: -5.4MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2023-08-31 00:36:16,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.04ms. Allocated memory is still 96.5MB. Free memory was 54.4MB in the beginning and 51.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:36:16,915 INFO L158 Benchmark]: Boogie Preprocessor took 42.93ms. Allocated memory is still 96.5MB. Free memory was 51.2MB in the beginning and 49.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:36:16,915 INFO L158 Benchmark]: RCFGBuilder took 664.78ms. Allocated memory is still 96.5MB. Free memory was 48.6MB in the beginning and 62.4MB in the end (delta: -13.8MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2023-08-31 00:36:16,915 INFO L158 Benchmark]: TraceAbstraction took 42419.17ms. Allocated memory was 96.5MB in the beginning and 251.7MB in the end (delta: 155.2MB). Free memory was 61.5MB in the beginning and 147.7MB in the end (delta: -86.1MB). Peak memory consumption was 166.1MB. Max. memory is 16.1GB. [2023-08-31 00:36:16,915 INFO L158 Benchmark]: Witness Printer took 87.27ms. Allocated memory is still 251.7MB. Free memory was 147.7MB in the beginning and 119.4MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-08-31 00:36:16,918 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 73.4MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 728.39ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 49.4MB in the beginning and 54.9MB in the end (delta: -5.4MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.04ms. Allocated memory is still 96.5MB. Free memory was 54.4MB in the beginning and 51.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.93ms. Allocated memory is still 96.5MB. Free memory was 51.2MB in the beginning and 49.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 664.78ms. Allocated memory is still 96.5MB. Free memory was 48.6MB in the beginning and 62.4MB in the end (delta: -13.8MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * TraceAbstraction took 42419.17ms. Allocated memory was 96.5MB in the beginning and 251.7MB in the end (delta: 155.2MB). Free memory was 61.5MB in the beginning and 147.7MB in the end (delta: -86.1MB). Peak memory consumption was 166.1MB. Max. memory is 16.1GB. * Witness Printer took 87.27ms. Allocated memory is still 251.7MB. Free memory was 147.7MB in the beginning and 119.4MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.1s, 210 PlacesBefore, 63 PlacesAfterwards, 235 TransitionsBefore, 84 TransitionsAfterwards, 17004 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 116 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 4 ChoiceCompositions, 182 TotalNumberOfCompositions, 37879 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13632, independent: 13048, independent conditional: 0, independent unconditional: 13048, dependent: 584, dependent conditional: 0, dependent unconditional: 584, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8177, independent: 8060, independent conditional: 0, independent unconditional: 8060, dependent: 117, dependent conditional: 0, dependent unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13632, independent: 4988, independent conditional: 0, independent unconditional: 4988, dependent: 467, dependent conditional: 0, dependent unconditional: 467, unknown: 8177, unknown conditional: 0, unknown unconditional: 8177] , Statistics on independence cache: Total cache size (in pairs): 314, Positive cache size: 258, Positive conditional cache size: 0, Positive unconditional cache size: 258, Negative cache size: 56, Negative conditional cache size: 0, Negative unconditional cache size: 56, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.1s, 283 PlacesBefore, 94 PlacesAfterwards, 320 TransitionsBefore, 128 TransitionsAfterwards, 47892 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 165 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 3 ChoiceCompositions, 238 TotalNumberOfCompositions, 110000 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35169, independent: 34326, independent conditional: 0, independent unconditional: 34326, dependent: 843, dependent conditional: 0, dependent unconditional: 843, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 22560, independent: 22421, independent conditional: 0, independent unconditional: 22421, dependent: 139, dependent conditional: 0, dependent unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35169, independent: 11905, independent conditional: 0, independent unconditional: 11905, dependent: 704, dependent conditional: 0, dependent unconditional: 704, unknown: 22560, unknown conditional: 0, unknown unconditional: 22560] , Statistics on independence cache: Total cache size (in pairs): 579, Positive cache size: 509, Positive conditional cache size: 0, Positive unconditional cache size: 509, Negative cache size: 70, Negative conditional cache size: 0, Negative unconditional cache size: 70, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.7s, 352 PlacesBefore, 122 PlacesAfterwards, 400 TransitionsBefore, 165 TransitionsAfterwards, 90792 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 207 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 29 ConcurrentYvCompositions, 5 ChoiceCompositions, 287 TotalNumberOfCompositions, 213925 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 64906, independent: 63770, independent conditional: 0, independent unconditional: 63770, dependent: 1136, dependent conditional: 0, dependent unconditional: 1136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41877, independent: 41662, independent conditional: 0, independent unconditional: 41662, dependent: 215, dependent conditional: 0, dependent unconditional: 215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64906, independent: 22108, independent conditional: 0, independent unconditional: 22108, dependent: 921, dependent conditional: 0, dependent unconditional: 921, unknown: 41877, unknown conditional: 0, unknown unconditional: 41877] , Statistics on independence cache: Total cache size (in pairs): 1054, Positive cache size: 958, Positive conditional cache size: 0, Positive unconditional cache size: 958, Negative cache size: 96, Negative conditional cache size: 0, Negative unconditional cache size: 96, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.7s, 421 PlacesBefore, 150 PlacesAfterwards, 480 TransitionsBefore, 204 TransitionsAfterwards, 146328 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 254 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 37 ConcurrentYvCompositions, 5 ChoiceCompositions, 342 TotalNumberOfCompositions, 353513 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 107293, independent: 105873, independent conditional: 0, independent unconditional: 105873, dependent: 1420, dependent conditional: 0, dependent unconditional: 1420, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 67491, independent: 67170, independent conditional: 0, independent unconditional: 67170, dependent: 321, dependent conditional: 0, dependent unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 107293, independent: 38703, independent conditional: 0, independent unconditional: 38703, dependent: 1099, dependent conditional: 0, dependent unconditional: 1099, unknown: 67491, unknown conditional: 0, unknown unconditional: 67491] , Statistics on independence cache: Total cache size (in pairs): 1973, Positive cache size: 1821, Positive conditional cache size: 0, Positive unconditional cache size: 1821, Negative cache size: 152, Negative conditional cache size: 0, Negative unconditional cache size: 152, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1235]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1240] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1241-L1244] 0 struct s { int datum; struct s *next; } *A; [L1253] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1254] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1267] 0 struct s *p; [L1268] 0 A = malloc(sizeof(struct s)) [L1269] EXPR 0 \read(*A) [L1269] CALL 0 init(A,3) [L1246] 0 p -> datum = x [L1247] 0 p -> next = ((void *)0) [L1269] RET 0 init(A,3) [L1270] 0 pthread_t t_ids[10000]; [L1270] 0 int i=0; VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, i=0, t_ids={11:0}] [L1270] COND TRUE 0 i<10000 [L1270] FCALL, FORK 0 pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0)) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, i=0, pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0))=-1, t_ids={11:0}] [L1256] 1 struct s *p = malloc(sizeof(struct s)); [L1257] CALL 1 init(p,7) [L1246] 1 p -> datum = x VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \old(x)=3, \old(x)=7, __global_lock={3:0}, p={-2:0}, p={-2:0}, p={9:0}, p={9:0}, x=3, x=7] [L1247] 1 p -> next = ((void *)0) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \old(x)=3, \old(x)=7, __global_lock={3:0}, p={-2:0}, p={-2:0}, p={9:0}, p={9:0}, x=3, x=7] [L1257] RET 1 init(p,7) [L1259] CALL 1 insert(p, &A) [L1250] EXPR 1 \read(**list) VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \read(**list)={-2:0}, __global_lock={3:0}, list={4:0}, list={4:0}, p={9:0}, p={9:0}] [L1250] 1 p->next = *list VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \read(**list)={-2:0}, __global_lock={3:0}, list={4:0}, list={4:0}, p={9:0}, p={9:0}] [L1251] 1 *list = p VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, __global_lock={3:0}, list={4:0}, list={4:0}, p={9:0}, p={9:0}] [L1259] RET 1 insert(p, &A) [L1262] COND FALSE 1 !(__VERIFIER_nondet_int()) [L1262] EXPR 1 p->datum [L1262] CALL 1 __VERIFIER_assert((p->datum) == 0) [L1235] COND TRUE 1 !(cond) [L1235] 1 reach_error() VAL [A={4:0}, A_mutex={5:0}, B_mutex={6:0}, \old(cond)=0, __global_lock={3:0}, cond=0] - UnprovableResult [Line: 1235]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1270]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 279 locations, 4 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: 10.6s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 346 locations, 5 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: 9.4s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 413 locations, 6 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: 10.9s, OverallIterations: 1, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=360occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 480 locations, 7 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: 11.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=452occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 proved your program to be incorrect! [2023-08-31 00:36:16,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE