./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/bin/uautomizer-verify-jihMAELWvX --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 f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:01:12,469 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:01:12,550 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:01:12,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:01:12,559 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:01:12,598 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:01:12,600 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:01:12,600 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:01:12,601 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:01:12,603 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:01:12,603 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:01:12,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:01:12,605 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:01:12,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:01:12,607 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:01:12,608 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:01:12,608 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:01:12,608 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:01:12,609 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:01:12,609 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:01:12,609 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:01:12,614 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:01:12,627 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:01:12,629 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:01:12,630 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:01:12,630 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:01:12,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:01:12,631 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:01:12,632 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:01:12,632 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:01:12,633 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:01:12,633 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:01:12,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:01:12,634 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:01:12,634 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:01:12,635 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:01:12,635 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:01:12,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:01:12,635 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:01:12,636 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:01:12,636 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:01:12,637 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:01:12,637 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c [2024-11-08 17:01:12,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:01:12,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:01:12,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:01:12,965 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:01:12,966 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:01:12,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i Unable to find full path for "g++" [2024-11-08 17:01:14,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:01:15,247 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:01:15,247 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2024-11-08 17:01:15,278 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/bin/uautomizer-verify-jihMAELWvX/data/f05381206/1034e2784ebf444a84cc30f6a091f6bd/FLAGc1c4807bb [2024-11-08 17:01:15,552 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/bin/uautomizer-verify-jihMAELWvX/data/f05381206/1034e2784ebf444a84cc30f6a091f6bd [2024-11-08 17:01:15,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:01:15,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:01:15,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:01:15,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:01:15,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:01:15,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:01:15" (1/1) ... [2024-11-08 17:01:15,567 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a90924a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:15, skipping insertion in model container [2024-11-08 17:01:15,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:01:15" (1/1) ... [2024-11-08 17:01:15,630 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:01:16,170 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2024-11-08 17:01:16,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:01:16,238 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:01:16,281 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2024-11-08 17:01:16,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:01:16,384 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:01:16,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:16 WrapperNode [2024-11-08 17:01:16,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:01:16,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:01:16,386 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:01:16,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:01:16,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:16" (1/1) ... [2024-11-08 17:01:16,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:16" (1/1) ... [2024-11-08 17:01:16,445 INFO L138 Inliner]: procedures = 280, calls = 98, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 397 [2024-11-08 17:01:16,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:01:16,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:01:16,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:01:16,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:01:16,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:16" (1/1) ... [2024-11-08 17:01:16,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:16" (1/1) ... [2024-11-08 17:01:16,470 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:16" (1/1) ... [2024-11-08 17:01:16,518 INFO L175 MemorySlicer]: Split 56 memory accesses to 9 slices as follows [2, 5, 5, 5, 2, 5, 28, 2, 2]. 50 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 5, 5, 5, 0, 5, 0, 0, 0]. The 17 writes are split as follows [0, 0, 0, 0, 1, 0, 14, 1, 1]. [2024-11-08 17:01:16,520 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:16" (1/1) ... [2024-11-08 17:01:16,520 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:16" (1/1) ... [2024-11-08 17:01:16,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:16" (1/1) ... [2024-11-08 17:01:16,555 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:16" (1/1) ... [2024-11-08 17:01:16,561 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:16" (1/1) ... [2024-11-08 17:01:16,564 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:16" (1/1) ... [2024-11-08 17:01:16,570 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:01:16,571 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:01:16,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:01:16,571 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:01:16,572 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:16" (1/1) ... [2024-11-08 17:01:16,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:01:16,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:01:16,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:01:16,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2803543b-a308-4fc8-be3a-b3f3c1040c42/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:01:16,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:01:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 17:01:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 17:01:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 17:01:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 17:01:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 17:01:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 17:01:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-08 17:01:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-08 17:01:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-08 17:01:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-08 17:01:16,694 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-08 17:01:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:01:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:01:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:01:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 17:01:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 17:01:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 17:01:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 17:01:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 17:01:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 17:01:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-08 17:01:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-08 17:01:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-08 17:01:16,696 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-08 17:01:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:01:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 17:01:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 17:01:16,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 17:01:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 17:01:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 17:01:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 17:01:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-08 17:01:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-08 17:01:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:01:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 17:01:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:01:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 17:01:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 17:01:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 17:01:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-08 17:01:16,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-08 17:01:16,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-08 17:01:16,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-08 17:01:16,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-08 17:01:16,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-08 17:01:16,702 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-11-08 17:01:16,703 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-11-08 17:01:16,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:01:16,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:01:16,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 17:01:16,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 17:01:16,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 17:01:16,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 17:01:16,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 17:01:16,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 17:01:16,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-08 17:01:16,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:01:16,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:01:16,707 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:01:16,994 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:01:16,998 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:01:17,662 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:01:17,662 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:01:18,100 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:01:18,100 INFO L316 CfgBuilder]: Removed 23 assume(true) statements. [2024-11-08 17:01:18,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:01:18 BoogieIcfgContainer [2024-11-08 17:01:18,101 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:01:18,106 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:01:18,106 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:01:18,110 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:01:18,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:01:15" (1/3) ... [2024-11-08 17:01:18,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2066f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:01:18, skipping insertion in model container [2024-11-08 17:01:18,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:16" (2/3) ... [2024-11-08 17:01:18,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2066f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:01:18, skipping insertion in model container [2024-11-08 17:01:18,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:01:18" (3/3) ... [2024-11-08 17:01:18,113 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2024-11-08 17:01:18,130 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:01:18,130 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:01:18,130 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:01:18,257 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-11-08 17:01:18,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 167 transitions, 373 flow [2024-11-08 17:01:18,525 INFO L124 PetriNetUnfolderBase]: 174/664 cut-off events. [2024-11-08 17:01:18,526 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-08 17:01:18,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 664 events. 174/664 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3947 event pairs, 0 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 344. Up to 16 conditions per place. [2024-11-08 17:01:18,543 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 167 transitions, 373 flow [2024-11-08 17:01:18,555 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 167 transitions, 373 flow [2024-11-08 17:01:18,564 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:01:18,571 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;@295cad94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:01:18,571 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-08 17:01:18,581 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:01:18,581 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events. [2024-11-08 17:01:18,582 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:01:18,582 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:01:18,583 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 17:01:18,583 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:01:18,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:18,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1638416939, now seen corresponding path program 1 times [2024-11-08 17:01:18,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:18,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954628287] [2024-11-08 17:01:18,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:18,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:01:18,848 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:01:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:01:18,969 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:01:18,971 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:01:18,973 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-08 17:01:18,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-11-08 17:01:18,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2024-11-08 17:01:18,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-08 17:01:18,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-08 17:01:18,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-11-08 17:01:18,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-11-08 17:01:18,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:01:18,977 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 17:01:18,983 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:01:18,983 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 17:01:19,126 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-11-08 17:01:19,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 282 transitions, 648 flow [2024-11-08 17:01:20,196 INFO L124 PetriNetUnfolderBase]: 1160/3496 cut-off events. [2024-11-08 17:01:20,197 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2024-11-08 17:01:20,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4144 conditions, 3496 events. 1160/3496 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 27270 event pairs, 11 based on Foata normal form. 0/2620 useless extension candidates. Maximal degree in co-relation 2275. Up to 192 conditions per place. [2024-11-08 17:01:20,240 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 282 transitions, 648 flow [2024-11-08 17:01:20,304 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 213 places, 282 transitions, 648 flow [2024-11-08 17:01:20,308 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:01:20,309 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;@295cad94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:01:20,313 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-08 17:01:20,329 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:01:20,329 INFO L124 PetriNetUnfolderBase]: 19/114 cut-off events. [2024-11-08 17:01:20,329 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 17:01:20,330 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:01:20,330 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1] [2024-11-08 17:01:20,330 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-08 17:01:20,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:20,332 INFO L85 PathProgramCache]: Analyzing trace with hash 775794438, now seen corresponding path program 1 times [2024-11-08 17:01:20,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:20,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092582818] [2024-11-08 17:01:20,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:20,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:01:20,419 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:01:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:01:20,456 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:01:20,456 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:01:20,457 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-08 17:01:20,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2024-11-08 17:01:20,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2024-11-08 17:01:20,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2024-11-08 17:01:20,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-08 17:01:20,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2024-11-08 17:01:20,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2024-11-08 17:01:20,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2024-11-08 17:01:20,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2024-11-08 17:01:20,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:01:20,459 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 17:01:20,460 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:01:20,460 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 17:01:20,606 INFO L143 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2024-11-08 17:01:20,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 297 places, 397 transitions, 929 flow [2024-11-08 17:01:28,076 INFO L124 PetriNetUnfolderBase]: 9052/20416 cut-off events. [2024-11-08 17:01:28,077 INFO L125 PetriNetUnfolderBase]: For 7059/7059 co-relation queries the response was YES. [2024-11-08 17:01:28,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27527 conditions, 20416 events. 9052/20416 cut-off events. For 7059/7059 co-relation queries the response was YES. Maximal size of possible extension queue 482. Compared 180995 event pairs, 512 based on Foata normal form. 0/16148 useless extension candidates. Maximal degree in co-relation 14108. Up to 2304 conditions per place. [2024-11-08 17:01:28,486 INFO L82 GeneralOperation]: Start removeDead. Operand has 297 places, 397 transitions, 929 flow [2024-11-08 17:01:29,219 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 297 places, 397 transitions, 929 flow [2024-11-08 17:01:29,221 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:01:29,223 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;@295cad94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:01:29,224 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-08 17:01:29,421 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:01:29,426 INFO L124 PetriNetUnfolderBase]: 47/273 cut-off events. [2024-11-08 17:01:29,426 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-08 17:01:29,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:01:29,426 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1] [2024-11-08 17:01:29,427 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-08 17:01:29,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:29,427 INFO L85 PathProgramCache]: Analyzing trace with hash 2071826354, now seen corresponding path program 1 times [2024-11-08 17:01:29,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:29,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109995559] [2024-11-08 17:01:29,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:29,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:01:29,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:01:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:01:29,565 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:01:29,565 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:01:29,565 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-08 17:01:29,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2024-11-08 17:01:29,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2024-11-08 17:01:29,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2024-11-08 17:01:29,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2024-11-08 17:01:29,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2024-11-08 17:01:29,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2024-11-08 17:01:29,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2024-11-08 17:01:29,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2024-11-08 17:01:29,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2024-11-08 17:01:29,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2024-11-08 17:01:29,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:01:29,568 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 17:01:29,569 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:01:29,569 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-08 17:01:29,762 INFO L143 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2024-11-08 17:01:29,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 381 places, 512 transitions, 1216 flow