./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_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_09-ptrmunge_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 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:36:13,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:36:13,821 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:36:13,828 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:36:13,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:36:13,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:36:13,869 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:36:13,869 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:36:13,870 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:36:13,870 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:36:13,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:36:13,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:36:13,872 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:36:13,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:36:13,875 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:36:13,876 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:36:13,876 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:36:13,877 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:36:13,880 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:36:13,881 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:36:13,881 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:36:13,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:36:13,882 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:36:13,882 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:36:13,882 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:36:13,882 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:36:13,883 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:36:13,883 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:36:13,883 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:36:13,883 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:36:13,884 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:36:13,884 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:36:13,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:36:13,884 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:36:13,885 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:36:13,885 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:36:13,885 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:36:13,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:36:13,888 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:36:13,889 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:36:13,889 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:36:13,890 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:36:13,890 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f [2024-11-09 02:36:14,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:36:14,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:36:14,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:36:14,233 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:36:14,234 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:36:14,235 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2024-11-09 02:36:15,829 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:36:16,108 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:36:16,109 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2024-11-09 02:36:16,134 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6df4118f3/fcaf674a7fb34be084eb0fe23cc972ca/FLAGac3859ae6 [2024-11-09 02:36:16,148 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6df4118f3/fcaf674a7fb34be084eb0fe23cc972ca [2024-11-09 02:36:16,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:36:16,151 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:36:16,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:36:16,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:36:16,158 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:36:16,158 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:36:16" (1/1) ... [2024-11-09 02:36:16,159 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65604adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:36:16, skipping insertion in model container [2024-11-09 02:36:16,159 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:36:16" (1/1) ... [2024-11-09 02:36:16,204 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:36:16,562 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_09-ptrmunge_racing.i[30176,30189] [2024-11-09 02:36:16,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:36:16,635 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:36:16,689 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_09-ptrmunge_racing.i[30176,30189] [2024-11-09 02:36:16,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:36:16,756 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:36:16,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:36:16 WrapperNode [2024-11-09 02:36:16,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:36:16,758 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:36:16,759 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:36:16,759 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:36:16,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:36:16" (1/1) ... [2024-11-09 02:36:16,785 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:36:16" (1/1) ... [2024-11-09 02:36:16,819 INFO L138 Inliner]: procedures = 173, calls = 54, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 239 [2024-11-09 02:36:16,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:36:16,823 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:36:16,823 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:36:16,823 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:36:16,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:36:16" (1/1) ... [2024-11-09 02:36:16,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:36:16" (1/1) ... [2024-11-09 02:36:16,843 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:36:16" (1/1) ... [2024-11-09 02:36:16,878 INFO L175 MemorySlicer]: Split 32 memory accesses to 7 slices as follows [2, 5, 2, 5, 5, 11, 2]. 34 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 5, 0, 5, 5, 1, 0]. The 6 writes are split as follows [0, 0, 1, 0, 0, 4, 1]. [2024-11-09 02:36:16,878 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:36:16" (1/1) ... [2024-11-09 02:36:16,879 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:36:16" (1/1) ... [2024-11-09 02:36:16,891 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:36:16" (1/1) ... [2024-11-09 02:36:16,899 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:36:16" (1/1) ... [2024-11-09 02:36:16,902 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:36:16" (1/1) ... [2024-11-09 02:36:16,903 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:36:16" (1/1) ... [2024-11-09 02:36:16,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:36:16,911 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:36:16,911 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:36:16,911 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:36:16,912 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:36:16" (1/1) ... [2024-11-09 02:36:16,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:36:16,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:36:16,994 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 02:36:16,997 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 02:36:17,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 02:36:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 02:36:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 02:36:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 02:36:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 02:36:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 02:36:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 02:36:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-09 02:36:17,104 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-09 02:36:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 02:36:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 02:36:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 02:36:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 02:36:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 02:36:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 02:36:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 02:36:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 02:36:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:36:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 02:36:17,106 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-09 02:36:17,106 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-09 02:36:17,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 02:36:17,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:36:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 02:36:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 02:36:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 02:36:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 02:36:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 02:36:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 02:36:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 02:36:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:36:17,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:36:17,110 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 02:36:17,277 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:36:17,280 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:36:17,650 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:36:17,650 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:36:17,885 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:36:17,885 INFO L316 CfgBuilder]: Removed 24 assume(true) statements. [2024-11-09 02:36:17,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:36:17 BoogieIcfgContainer [2024-11-09 02:36:17,885 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:36:17,888 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:36:17,888 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:36:17,892 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:36:17,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:36:16" (1/3) ... [2024-11-09 02:36:17,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f63475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:36:17, skipping insertion in model container [2024-11-09 02:36:17,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:36:16" (2/3) ... [2024-11-09 02:36:17,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f63475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:36:17, skipping insertion in model container [2024-11-09 02:36:17,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:36:17" (3/3) ... [2024-11-09 02:36:17,896 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2024-11-09 02:36:17,911 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:36:17,912 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 02:36:17,912 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:36:17,984 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-09 02:36:18,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 103 transitions, 226 flow [2024-11-09 02:36:18,114 INFO L124 PetriNetUnfolderBase]: 44/175 cut-off events. [2024-11-09 02:36:18,134 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-09 02:36:18,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 175 events. 44/175 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 808 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2024-11-09 02:36:18,141 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 103 transitions, 226 flow [2024-11-09 02:36:18,148 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 103 transitions, 226 flow [2024-11-09 02:36:18,162 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:36:18,171 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;@182a8e83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:36:18,172 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 02:36:18,204 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:36:18,205 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-09 02:36:18,205 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:36:18,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:36:18,206 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-09 02:36:18,207 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 3 more)] === [2024-11-09 02:36:18,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:36:18,211 INFO L85 PathProgramCache]: Analyzing trace with hash 991346050, now seen corresponding path program 1 times [2024-11-09 02:36:18,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:36:18,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133360789] [2024-11-09 02:36:18,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:36:18,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:36:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:36:18,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 02:36:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:36:18,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 02:36:18,479 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 02:36:18,481 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-09 02:36:18,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-09 02:36:18,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-09 02:36:18,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2024-11-09 02:36:18,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-11-09 02:36:18,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-09 02:36:18,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:36:18,487 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 02:36:18,495 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 02:36:18,496 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 02:36:18,562 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-09 02:36:18,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 191 transitions, 426 flow [2024-11-09 02:36:18,737 INFO L124 PetriNetUnfolderBase]: 153/531 cut-off events. [2024-11-09 02:36:18,738 INFO L125 PetriNetUnfolderBase]: For 72/83 co-relation queries the response was YES. [2024-11-09 02:36:18,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 620 conditions, 531 events. 153/531 cut-off events. For 72/83 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3267 event pairs, 1 based on Foata normal form. 0/380 useless extension candidates. Maximal degree in co-relation 342. Up to 32 conditions per place. [2024-11-09 02:36:18,757 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 191 transitions, 426 flow [2024-11-09 02:36:18,768 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 191 transitions, 426 flow [2024-11-09 02:36:18,773 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:36:18,776 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;@182a8e83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:36:18,776 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-09 02:36:18,787 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:36:18,787 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-11-09 02:36:18,788 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 02:36:18,788 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:36:18,788 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-11-09 02:36:18,789 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 5 more)] === [2024-11-09 02:36:18,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:36:18,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1338037890, now seen corresponding path program 1 times [2024-11-09 02:36:18,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:36:18,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917433280] [2024-11-09 02:36:18,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:36:18,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:36:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:36:18,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 02:36:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:36:18,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 02:36:18,913 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 02:36:18,914 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-09 02:36:18,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-11-09 02:36:18,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 8 remaining) [2024-11-09 02:36:18,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-11-09 02:36:18,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-11-09 02:36:18,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-11-09 02:36:18,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2024-11-09 02:36:18,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2024-11-09 02:36:18,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:36:18,919 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 02:36:18,920 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 02:36:18,920 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-09 02:36:19,002 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-11-09 02:36:19,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 208 places, 279 transitions, 630 flow [2024-11-09 02:36:19,416 INFO L124 PetriNetUnfolderBase]: 516/1457 cut-off events. [2024-11-09 02:36:19,417 INFO L125 PetriNetUnfolderBase]: For 419/457 co-relation queries the response was YES. [2024-11-09 02:36:19,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1893 conditions, 1457 events. 516/1457 cut-off events. For 419/457 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 9831 event pairs, 32 based on Foata normal form. 0/1110 useless extension candidates. Maximal degree in co-relation 1052. Up to 192 conditions per place. [2024-11-09 02:36:19,440 INFO L82 GeneralOperation]: Start removeDead. Operand has 208 places, 279 transitions, 630 flow [2024-11-09 02:36:19,472 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 208 places, 279 transitions, 630 flow [2024-11-09 02:36:19,474 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:36:19,476 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;@182a8e83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:36:19,477 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-09 02:36:19,491 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:36:19,492 INFO L124 PetriNetUnfolderBase]: 12/133 cut-off events. [2024-11-09 02:36:19,492 INFO L125 PetriNetUnfolderBase]: For 22/32 co-relation queries the response was YES. [2024-11-09 02:36:19,492 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:36:19,492 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2024-11-09 02:36:19,493 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 7 more)] === [2024-11-09 02:36:19,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:36:19,494 INFO L85 PathProgramCache]: Analyzing trace with hash -199651519, now seen corresponding path program 1 times [2024-11-09 02:36:19,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:36:19,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463258091] [2024-11-09 02:36:19,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:36:19,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:36:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:36:19,554 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 02:36:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:36:19,607 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 02:36:19,609 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 02:36:19,610 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-09 02:36:19,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 10 remaining) [2024-11-09 02:36:19,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 10 remaining) [2024-11-09 02:36:19,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 10 remaining) [2024-11-09 02:36:19,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 10 remaining) [2024-11-09 02:36:19,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 10 remaining) [2024-11-09 02:36:19,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 10 remaining) [2024-11-09 02:36:19,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 10 remaining) [2024-11-09 02:36:19,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 10 remaining) [2024-11-09 02:36:19,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 10 remaining) [2024-11-09 02:36:19,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:36:19,614 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 02:36:19,614 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 02:36:19,618 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-09 02:36:19,688 INFO L143 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2024-11-09 02:36:19,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 367 transitions, 838 flow [2024-11-09 02:36:21,064 INFO L124 PetriNetUnfolderBase]: 2105/4681 cut-off events. [2024-11-09 02:36:21,064 INFO L125 PetriNetUnfolderBase]: For 2144/2184 co-relation queries the response was YES. [2024-11-09 02:36:21,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6822 conditions, 4681 events. 2105/4681 cut-off events. For 2144/2184 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 33922 event pairs, 313 based on Foata normal form. 0/3827 useless extension candidates. Maximal degree in co-relation 3497. Up to 1024 conditions per place. [2024-11-09 02:36:21,292 INFO L82 GeneralOperation]: Start removeDead. Operand has 272 places, 367 transitions, 838 flow [2024-11-09 02:36:21,398 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 272 places, 367 transitions, 838 flow [2024-11-09 02:36:21,400 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:36:21,401 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;@182a8e83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:36:21,402 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-09 02:36:21,414 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:36:21,416 INFO L124 PetriNetUnfolderBase]: 12/133 cut-off events. [2024-11-09 02:36:21,416 INFO L125 PetriNetUnfolderBase]: For 25/33 co-relation queries the response was YES. [2024-11-09 02:36:21,416 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:36:21,416 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:36:21,417 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2024-11-09 02:36:21,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:36:21,417 INFO L85 PathProgramCache]: Analyzing trace with hash -422089753, now seen corresponding path program 1 times [2024-11-09 02:36:21,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:36:21,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156862542] [2024-11-09 02:36:21,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:36:21,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:36:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:36:21,757 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 02:36:21,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:36:21,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156862542] [2024-11-09 02:36:21,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156862542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:36:21,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:36:21,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:36:21,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588018096] [2024-11-09 02:36:21,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:36:21,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:36:21,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:36:21,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:36:21,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:36:21,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 367 [2024-11-09 02:36:21,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 367 transitions, 838 flow. Second operand has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 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 02:36:21,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:36:21,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 367 [2024-11-09 02:36:21,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand