./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_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 --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 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:37:56,635 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:37:56,720 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:37:56,735 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:37:56,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:37:56,770 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:37:56,771 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:37:56,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:37:56,772 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:37:56,774 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:37:56,775 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:37:56,775 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:37:56,776 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:37:56,776 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:37:56,778 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:37:56,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:37:56,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:37:56,779 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:37:56,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:37:56,779 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:37:56,780 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:37:56,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:37:56,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:37:56,785 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:37:56,785 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:37:56,785 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:37:56,785 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:37:56,786 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:37:56,786 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:37:56,786 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:37:56,787 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:37:56,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:37:56,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:37:56,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:37:56,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:37:56,788 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:37:56,788 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:37:56,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:37:56,788 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:37:56,789 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:37:56,789 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:37:56,790 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:37:56,790 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b [2024-11-09 02:37:57,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:37:57,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:37:57,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:37:57,077 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:37:57,078 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:37:57,079 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2024-11-09 02:37:58,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:37:58,852 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:37:58,853 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2024-11-09 02:37:58,876 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/343b62bea/f4af288a27bd46bea323b964f22cb1f4/FLAG4647a4776 [2024-11-09 02:37:58,890 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/343b62bea/f4af288a27bd46bea323b964f22cb1f4 [2024-11-09 02:37:58,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:37:58,894 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:37:58,897 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:37:58,897 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:37:58,906 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:37:58,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:37:58" (1/1) ... [2024-11-09 02:37:58,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52508954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:37:58, skipping insertion in model container [2024-11-09 02:37:58,908 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:37:58" (1/1) ... [2024-11-09 02:37:58,959 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:37:59,457 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i[47038,47051] [2024-11-09 02:37:59,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:37:59,534 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:37:59,597 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i[47038,47051] [2024-11-09 02:37:59,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:37:59,694 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:37:59,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:37:59 WrapperNode [2024-11-09 02:37:59,695 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:37:59,696 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:37:59,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:37:59,697 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:37:59,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:37:59" (1/1) ... [2024-11-09 02:37:59,727 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:37:59" (1/1) ... [2024-11-09 02:37:59,776 INFO L138 Inliner]: procedures = 279, calls = 59, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 264 [2024-11-09 02:37:59,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:37:59,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:37:59,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:37:59,779 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:37:59,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:37:59" (1/1) ... [2024-11-09 02:37:59,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:37:59" (1/1) ... [2024-11-09 02:37:59,800 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:37:59" (1/1) ... [2024-11-09 02:37:59,840 INFO L175 MemorySlicer]: Split 30 memory accesses to 6 slices as follows [2, 5, 5, 14, 2, 2]. 47 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0, 0, 0]. The 10 writes are split as follows [0, 0, 0, 8, 1, 1]. [2024-11-09 02:37:59,841 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:37:59" (1/1) ... [2024-11-09 02:37:59,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:37:59" (1/1) ... [2024-11-09 02:37:59,861 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:37:59" (1/1) ... [2024-11-09 02:37:59,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:37:59" (1/1) ... [2024-11-09 02:37:59,879 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:37:59" (1/1) ... [2024-11-09 02:37:59,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:37:59" (1/1) ... [2024-11-09 02:37:59,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:37:59,894 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:37:59,894 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:37:59,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:37:59,895 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:37:59" (1/1) ... [2024-11-09 02:37:59,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:37:59,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:37:59,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 02:37:59,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 02:37:59,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 02:37:59,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 02:37:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 02:37:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 02:37:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 02:37:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 02:37:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 02:37:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-09 02:37:59,984 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-09 02:37:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 02:37:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 02:37:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 02:37:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 02:37:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 02:37:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 02:37:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 02:37:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 02:37:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-09 02:37:59,985 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-09 02:37:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 02:37:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 02:37:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 02:37:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 02:37:59,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 02:37:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 02:37:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 02:37:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 02:37:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:37:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 02:37:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 02:37:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 02:37:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 02:37:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 02:37:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 02:37:59,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:37:59,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 02:37:59,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 02:37:59,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 02:37:59,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 02:37:59,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 02:37:59,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:37:59,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:37:59,993 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 02:38:00,199 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:38:00,201 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:38:00,623 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:38:00,623 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:38:01,053 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:38:01,054 INFO L316 CfgBuilder]: Removed 15 assume(true) statements. [2024-11-09 02:38:01,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:38:01 BoogieIcfgContainer [2024-11-09 02:38:01,054 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:38:01,056 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:38:01,057 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:38:01,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:38:01,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:37:58" (1/3) ... [2024-11-09 02:38:01,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d44b356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:38:01, skipping insertion in model container [2024-11-09 02:38:01,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:37:59" (2/3) ... [2024-11-09 02:38:01,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d44b356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:38:01, skipping insertion in model container [2024-11-09 02:38:01,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:38:01" (3/3) ... [2024-11-09 02:38:01,064 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_81-list_racing.i [2024-11-09 02:38:01,082 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:38:01,083 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 02:38:01,083 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:38:01,157 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-09 02:38:01,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 72 transitions, 164 flow [2024-11-09 02:38:01,345 INFO L124 PetriNetUnfolderBase]: 36/149 cut-off events. [2024-11-09 02:38:01,345 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-09 02:38:01,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 149 events. 36/149 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 601 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 77. Up to 8 conditions per place. [2024-11-09 02:38:01,351 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 72 transitions, 164 flow [2024-11-09 02:38:01,355 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 70 transitions, 154 flow [2024-11-09 02:38:01,365 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:38:01,375 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@34ddb36d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:38:01,376 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 02:38:01,389 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:38:01,391 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-09 02:38:01,391 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:38:01,391 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:38:01,392 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-09 02:38:01,393 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:38:01,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:38:01,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1996067664, now seen corresponding path program 1 times [2024-11-09 02:38:01,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:38:01,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520220906] [2024-11-09 02:38:01,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:38:01,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:38:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:38:01,674 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 02:38:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:38:01,774 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 02:38:01,776 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 02:38:01,777 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-11-09 02:38:01,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-11-09 02:38:01,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-09 02:38:01,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-11-09 02:38:01,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:38:01,780 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 02:38:01,783 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 02:38:01,783 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 02:38:01,857 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-09 02:38:01,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 129 transitions, 302 flow [2024-11-09 02:38:01,990 INFO L124 PetriNetUnfolderBase]: 141/489 cut-off events. [2024-11-09 02:38:01,990 INFO L125 PetriNetUnfolderBase]: For 72/85 co-relation queries the response was YES. [2024-11-09 02:38:02,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 489 events. 141/489 cut-off events. For 72/85 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2841 event pairs, 2 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 326. Up to 32 conditions per place. [2024-11-09 02:38:02,004 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 129 transitions, 302 flow [2024-11-09 02:38:02,011 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 129 transitions, 302 flow [2024-11-09 02:38:02,012 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:38:02,016 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@34ddb36d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:38:02,016 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-09 02:38:02,029 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:38:02,030 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-09 02:38:02,031 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-11-09 02:38:02,031 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:38:02,031 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-11-09 02:38:02,031 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 02:38:02,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:38:02,032 INFO L85 PathProgramCache]: Analyzing trace with hash -2123250253, now seen corresponding path program 1 times [2024-11-09 02:38:02,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:38:02,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688796272] [2024-11-09 02:38:02,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:38:02,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:38:02,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:38:02,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 02:38:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:38:02,196 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 02:38:02,196 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 02:38:02,197 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-09 02:38:02,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-09 02:38:02,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-09 02:38:02,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-11-09 02:38:02,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-09 02:38:02,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:38:02,198 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 02:38:02,199 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 02:38:02,199 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-09 02:38:02,278 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-11-09 02:38:02,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 186 transitions, 444 flow [2024-11-09 02:38:02,522 INFO L124 PetriNetUnfolderBase]: 504/1409 cut-off events. [2024-11-09 02:38:02,522 INFO L125 PetriNetUnfolderBase]: For 419/470 co-relation queries the response was YES. [2024-11-09 02:38:02,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1845 conditions, 1409 events. 504/1409 cut-off events. For 419/470 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 9485 event pairs, 64 based on Foata normal form. 0/1065 useless extension candidates. Maximal degree in co-relation 1025. Up to 192 conditions per place. [2024-11-09 02:38:02,555 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 186 transitions, 444 flow [2024-11-09 02:38:02,582 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 186 transitions, 444 flow [2024-11-09 02:38:02,584 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:38:02,585 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@34ddb36d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:38:02,585 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 02:38:02,601 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:38:02,602 INFO L124 PetriNetUnfolderBase]: 6/104 cut-off events. [2024-11-09 02:38:02,602 INFO L125 PetriNetUnfolderBase]: For 20/23 co-relation queries the response was YES. [2024-11-09 02:38:02,603 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:38:02,605 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2024-11-09 02:38:02,605 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-09 02:38:02,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:38:02,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1899945263, now seen corresponding path program 1 times [2024-11-09 02:38:02,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:38:02,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053262085] [2024-11-09 02:38:02,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:38:02,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:38:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:38:02,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 02:38:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:38:02,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 02:38:02,743 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 02:38:02,744 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-09 02:38:02,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-09 02:38:02,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-09 02:38:02,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2024-11-09 02:38:02,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-11-09 02:38:02,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-09 02:38:02,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:38:02,749 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 02:38:02,750 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 02:38:02,750 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-09 02:38:02,867 INFO L143 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2024-11-09 02:38:02,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 243 transitions, 590 flow [2024-11-09 02:38:03,885 INFO L124 PetriNetUnfolderBase]: 2097/4637 cut-off events. [2024-11-09 02:38:03,885 INFO L125 PetriNetUnfolderBase]: For 2144/2247 co-relation queries the response was YES. [2024-11-09 02:38:03,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6778 conditions, 4637 events. 2097/4637 cut-off events. For 2144/2247 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 33456 event pairs, 626 based on Foata normal form. 0/3765 useless extension candidates. Maximal degree in co-relation 3469. Up to 1024 conditions per place. [2024-11-09 02:38:03,991 INFO L82 GeneralOperation]: Start removeDead. Operand has 188 places, 243 transitions, 590 flow [2024-11-09 02:38:04,067 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 243 transitions, 590 flow [2024-11-09 02:38:04,069 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:38:04,070 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@34ddb36d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:38:04,071 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-09 02:38:04,091 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:38:04,092 INFO L124 PetriNetUnfolderBase]: 19/192 cut-off events. [2024-11-09 02:38:04,092 INFO L125 PetriNetUnfolderBase]: For 57/68 co-relation queries the response was YES. [2024-11-09 02:38:04,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:38:04,092 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2024-11-09 02:38:04,093 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:38:04,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:38:04,093 INFO L85 PathProgramCache]: Analyzing trace with hash 902313537, now seen corresponding path program 1 times [2024-11-09 02:38:04,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:38:04,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104746964] [2024-11-09 02:38:04,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:38:04,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:38:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:38:04,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 02:38:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:38:04,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 02:38:04,206 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 02:38:04,207 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-09 02:38:04,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-11-09 02:38:04,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-09 02:38:04,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2024-11-09 02:38:04,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2024-11-09 02:38:04,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-11-09 02:38:04,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-11-09 02:38:04,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:38:04,208 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 02:38:04,209 WARN L244 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 02:38:04,209 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-09 02:38:04,401 INFO L143 ThreadInstanceAdder]: Constructed 20 joinOtherThreadTransitions. [2024-11-09 02:38:04,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 300 transitions, 740 flow [2024-11-09 02:38:09,250 INFO L124 PetriNetUnfolderBase]: 9672/17949 cut-off events. [2024-11-09 02:38:09,251 INFO L125 PetriNetUnfolderBase]: For 10450/10623 co-relation queries the response was YES. [2024-11-09 02:38:09,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28340 conditions, 17949 events. 9672/17949 cut-off events. For 10450/10623 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 137583 event pairs, 2148 based on Foata normal form. 0/15361 useless extension candidates. Maximal degree in co-relation 13709. Up to 5120 conditions per place. [2024-11-09 02:38:09,672 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 300 transitions, 740 flow [2024-11-09 02:38:10,292 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 231 places, 300 transitions, 740 flow [2024-11-09 02:38:10,294 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:38:10,296 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@34ddb36d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:38:10,296 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-09 02:38:10,332 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:38:10,333 INFO L124 PetriNetUnfolderBase]: 34/273 cut-off events. [2024-11-09 02:38:10,333 INFO L125 PetriNetUnfolderBase]: For 101/131 co-relation queries the response was YES. [2024-11-09 02:38:10,334 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:38:10,334 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:38:10,335 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-09 02:38:10,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:38:10,335 INFO L85 PathProgramCache]: Analyzing trace with hash -875154080, now seen corresponding path program 1 times [2024-11-09 02:38:10,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:38:10,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931631504] [2024-11-09 02:38:10,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:38:10,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:38:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:38:10,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:38:10,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:38:10,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931631504] [2024-11-09 02:38:10,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931631504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:38:10,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:38:10,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 02:38:10,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597913829] [2024-11-09 02:38:10,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:38:10,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:38:10,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:38:10,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:38:10,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:38:10,541 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 300 [2024-11-09 02:38:10,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 300 transitions, 740 flow. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:38:10,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:38:10,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 300 [2024-11-09 02:38:10,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand