./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/bin/uautomizer-verify-BQ2R08f2Ya --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 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:11:39,241 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:11:39,302 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 07:11:39,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:11:39,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:11:39,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:11:39,328 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:11:39,329 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:11:39,329 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:11:39,330 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:11:39,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:11:39,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:11:39,332 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:11:39,332 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:11:39,332 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:11:39,333 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:11:39,333 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:11:39,334 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:11:39,334 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:11:39,335 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:11:39,335 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:11:39,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:11:39,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:11:39,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:11:39,339 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:11:39,339 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:11:39,340 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:11:39,340 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:11:39,340 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:11:39,341 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:11:39,341 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:11:39,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:11:39,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:11:39,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:11:39,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:11:39,343 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 07:11:39,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 07:11:39,343 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:11:39,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:11:39,343 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:11:39,344 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:11:39,344 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:11:39,344 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_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d [2023-11-29 07:11:39,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:11:39,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:11:39,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:11:39,602 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:11:39,602 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:11:39,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2023-11-29 07:11:42,366 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:11:42,622 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:11:42,623 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2023-11-29 07:11:42,641 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/bin/uautomizer-verify-BQ2R08f2Ya/data/b108dbe1b/8ec79b10c0f54b01966c73c1986fbae3/FLAGc0c874449 [2023-11-29 07:11:42,657 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/bin/uautomizer-verify-BQ2R08f2Ya/data/b108dbe1b/8ec79b10c0f54b01966c73c1986fbae3 [2023-11-29 07:11:42,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:11:42,661 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:11:42,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:11:42,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:11:42,668 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:11:42,668 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:11:42" (1/1) ... [2023-11-29 07:11:42,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fcd8d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:42, skipping insertion in model container [2023-11-29 07:11:42,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:11:42" (1/1) ... [2023-11-29 07:11:42,718 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:11:43,200 WARN L240 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_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2023-11-29 07:11:43,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:11:43,256 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:11:43,289 WARN L240 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_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2023-11-29 07:11:43,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:11:43,364 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:11:43,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:43 WrapperNode [2023-11-29 07:11:43,365 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:11:43,366 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:11:43,366 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:11:43,366 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:11:43,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:43" (1/1) ... [2023-11-29 07:11:43,391 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:43" (1/1) ... [2023-11-29 07:11:43,425 INFO L138 Inliner]: procedures = 280, calls = 96, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 382 [2023-11-29 07:11:43,426 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:11:43,426 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:11:43,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:11:43,427 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:11:43,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:43" (1/1) ... [2023-11-29 07:11:43,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:43" (1/1) ... [2023-11-29 07:11:43,453 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:43" (1/1) ... [2023-11-29 07:11:43,480 INFO L175 MemorySlicer]: Split 51 memory accesses to 9 slices as follows [2, 2, 5, 5, 5, 5, 2, 2, 23]. 45 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 5, 5, 5, 5, 0, 0, 0]. The 15 writes are split as follows [0, 1, 0, 0, 0, 0, 1, 1, 12]. [2023-11-29 07:11:43,481 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:43" (1/1) ... [2023-11-29 07:11:43,481 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:43" (1/1) ... [2023-11-29 07:11:43,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:43" (1/1) ... [2023-11-29 07:11:43,514 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:43" (1/1) ... [2023-11-29 07:11:43,519 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:43" (1/1) ... [2023-11-29 07:11:43,523 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:43" (1/1) ... [2023-11-29 07:11:43,529 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:11:43,530 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:11:43,530 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:11:43,530 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:11:43,531 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:43" (1/1) ... [2023-11-29 07:11:43,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:11:43,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:43,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:11:43,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53507fc-ff16-4b7a-a1b5-65ff8c97c1fe/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:11:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 07:11:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 07:11:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 07:11:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 07:11:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 07:11:43,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 07:11:43,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 07:11:43,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-29 07:11:43,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-29 07:11:43,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-29 07:11:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-29 07:11:43,604 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-29 07:11:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 07:11:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 07:11:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 07:11:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 07:11:43,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 07:11:43,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 07:11:43,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 07:11:43,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 07:11:43,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 07:11:43,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 07:11:43,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-29 07:11:43,606 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-29 07:11:43,606 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-29 07:11:43,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 07:11:43,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 07:11:43,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 07:11:43,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 07:11:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 07:11:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 07:11:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 07:11:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 07:11:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-29 07:11:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 07:11:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 07:11:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:11:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 07:11:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 07:11:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 07:11:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 07:11:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 07:11:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 07:11:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-29 07:11:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-29 07:11:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-29 07:11:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-11-29 07:11:43,609 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-11-29 07:11:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 07:11:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 07:11:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 07:11:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 07:11:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 07:11:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 07:11:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 07:11:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 07:11:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-29 07:11:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:11:43,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:11:43,612 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 07:11:43,815 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:11:43,817 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:11:44,265 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:11:44,594 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:11:44,594 INFO L309 CfgBuilder]: Removed 28 assume(true) statements. [2023-11-29 07:11:44,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:11:44 BoogieIcfgContainer [2023-11-29 07:11:44,595 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:11:44,597 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:11:44,597 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:11:44,601 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:11:44,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:11:42" (1/3) ... [2023-11-29 07:11:44,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ed8d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:11:44, skipping insertion in model container [2023-11-29 07:11:44,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:11:43" (2/3) ... [2023-11-29 07:11:44,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ed8d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:11:44, skipping insertion in model container [2023-11-29 07:11:44,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:11:44" (3/3) ... [2023-11-29 07:11:44,604 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2023-11-29 07:11:44,613 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 07:11:44,624 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:11:44,624 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 07:11:44,625 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 07:11:44,719 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-11-29 07:11:44,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 137 transitions, 313 flow [2023-11-29 07:11:44,870 INFO L124 PetriNetUnfolderBase]: 120/454 cut-off events. [2023-11-29 07:11:44,870 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-29 07:11:44,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 454 events. 120/454 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2639 event pairs, 0 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 239. Up to 16 conditions per place. [2023-11-29 07:11:44,880 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 137 transitions, 313 flow [2023-11-29 07:11:44,888 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 137 transitions, 313 flow [2023-11-29 07:11:44,899 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:11:44,906 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@6dd6f6c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:11:44,906 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-29 07:11:44,915 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 07:11:44,915 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2023-11-29 07:11:44,915 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 07:11:44,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:44,916 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-29 07:11:44,916 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 07:11:44,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:44,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1839756353, now seen corresponding path program 1 times [2023-11-29 07:11:44,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:44,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640581858] [2023-11-29 07:11:44,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:44,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:11:45,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 07:11:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:11:45,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 07:11:45,187 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 07:11:45,188 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2023-11-29 07:11:45,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-11-29 07:11:45,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-11-29 07:11:45,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-11-29 07:11:45,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-11-29 07:11:45,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-11-29 07:11:45,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-11-29 07:11:45,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 07:11:45,193 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 07:11:45,197 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 07:11:45,197 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-29 07:11:45,321 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-11-29 07:11:45,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 252 transitions, 588 flow [2023-11-29 07:11:45,795 INFO L124 PetriNetUnfolderBase]: 875/2479 cut-off events. [2023-11-29 07:11:45,796 INFO L125 PetriNetUnfolderBase]: For 602/698 co-relation queries the response was YES. [2023-11-29 07:11:45,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3127 conditions, 2479 events. 875/2479 cut-off events. For 602/698 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 19761 event pairs, 11 based on Foata normal form. 0/1813 useless extension candidates. Maximal degree in co-relation 1693. Up to 192 conditions per place. [2023-11-29 07:11:45,833 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 252 transitions, 588 flow [2023-11-29 07:11:45,872 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 252 transitions, 588 flow [2023-11-29 07:11:45,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:11:45,875 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@6dd6f6c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:11:45,875 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-29 07:11:45,884 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 07:11:45,884 INFO L124 PetriNetUnfolderBase]: 2/68 cut-off events. [2023-11-29 07:11:45,885 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-29 07:11:45,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:45,885 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2023-11-29 07:11:45,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 07:11:45,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:45,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1461617651, now seen corresponding path program 1 times [2023-11-29 07:11:45,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:45,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661408401] [2023-11-29 07:11:45,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:45,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:11:45,972 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 07:11:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:11:46,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 07:11:46,018 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 07:11:46,019 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2023-11-29 07:11:46,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2023-11-29 07:11:46,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2023-11-29 07:11:46,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2023-11-29 07:11:46,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-11-29 07:11:46,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2023-11-29 07:11:46,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2023-11-29 07:11:46,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2023-11-29 07:11:46,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2023-11-29 07:11:46,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 07:11:46,022 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 07:11:46,022 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 07:11:46,023 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-29 07:11:46,192 INFO L144 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2023-11-29 07:11:46,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 367 transitions, 869 flow [2023-11-29 07:11:50,468 INFO L124 PetriNetUnfolderBase]: 7304/14788 cut-off events. [2023-11-29 07:11:50,468 INFO L125 PetriNetUnfolderBase]: For 7059/7553 co-relation queries the response was YES. [2023-11-29 07:11:50,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21899 conditions, 14788 events. 7304/14788 cut-off events. For 7059/7553 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 124027 event pairs, 912 based on Foata normal form. 0/12056 useless extension candidates. Maximal degree in co-relation 11039. Up to 2304 conditions per place. [2023-11-29 07:11:50,958 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 367 transitions, 869 flow [2023-11-29 07:11:51,358 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 367 transitions, 869 flow [2023-11-29 07:11:51,360 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:11:51,361 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@6dd6f6c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:11:51,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-29 07:11:51,380 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 07:11:51,380 INFO L124 PetriNetUnfolderBase]: 8/167 cut-off events. [2023-11-29 07:11:51,380 INFO L125 PetriNetUnfolderBase]: For 25/27 co-relation queries the response was YES. [2023-11-29 07:11:51,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:11:51,381 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2023-11-29 07:11:51,381 INFO L420 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)] === [2023-11-29 07:11:51,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:51,381 INFO L85 PathProgramCache]: Analyzing trace with hash -711888032, now seen corresponding path program 1 times [2023-11-29 07:11:51,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:51,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802741158] [2023-11-29 07:11:51,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:51,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:11:51,434 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 07:11:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:11:51,511 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 07:11:51,511 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 07:11:51,512 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2023-11-29 07:11:51,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2023-11-29 07:11:51,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2023-11-29 07:11:51,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2023-11-29 07:11:51,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2023-11-29 07:11:51,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2023-11-29 07:11:51,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2023-11-29 07:11:51,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2023-11-29 07:11:51,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2023-11-29 07:11:51,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2023-11-29 07:11:51,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2023-11-29 07:11:51,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 07:11:51,515 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 07:11:51,516 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 07:11:51,516 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-29 07:11:51,721 INFO L144 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2023-11-29 07:11:51,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 482 transitions, 1156 flow [2023-11-29 07:12:30,575 INFO L124 PetriNetUnfolderBase]: 71437/117079 cut-off events. [2023-11-29 07:12:30,575 INFO L125 PetriNetUnfolderBase]: For 74224/75930 co-relation queries the response was YES. [2023-11-29 07:12:36,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191254 conditions, 117079 events. 71437/117079 cut-off events. For 74224/75930 co-relation queries the response was YES. Maximal size of possible extension queue 2940. Compared 1016475 event pairs, 16453 based on Foata normal form. 0/102266 useless extension candidates. Maximal degree in co-relation 91552. Up to 24576 conditions per place. [2023-11-29 07:12:36,447 INFO L82 GeneralOperation]: Start removeDead. Operand has 359 places, 482 transitions, 1156 flow [2023-11-29 07:12:41,228 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 482 transitions, 1156 flow [2023-11-29 07:12:41,229 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:12:41,230 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@6dd6f6c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:12:41,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-29 07:12:41,259 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 07:12:41,259 INFO L124 PetriNetUnfolderBase]: 23/351 cut-off events. [2023-11-29 07:12:41,260 INFO L125 PetriNetUnfolderBase]: For 77/79 co-relation queries the response was YES. [2023-11-29 07:12:41,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:12:41,260 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2023-11-29 07:12:41,260 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2023-11-29 07:12:41,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:41,261 INFO L85 PathProgramCache]: Analyzing trace with hash 731102439, now seen corresponding path program 1 times [2023-11-29 07:12:41,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:12:41,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399062695] [2023-11-29 07:12:41,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:41,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:12:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:12:41,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 07:12:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:12:41,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 07:12:41,346 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 07:12:41,346 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2023-11-29 07:12:41,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 13 remaining) [2023-11-29 07:12:41,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 13 remaining) [2023-11-29 07:12:41,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 13 remaining) [2023-11-29 07:12:41,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2023-11-29 07:12:41,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 13 remaining) [2023-11-29 07:12:41,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 13 remaining) [2023-11-29 07:12:41,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 13 remaining) [2023-11-29 07:12:41,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 13 remaining) [2023-11-29 07:12:41,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 13 remaining) [2023-11-29 07:12:41,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 13 remaining) [2023-11-29 07:12:41,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 13 remaining) [2023-11-29 07:12:41,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 13 remaining) [2023-11-29 07:12:41,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 07:12:41,349 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 07:12:41,350 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 07:12:41,350 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-11-29 07:12:41,546 INFO L144 ThreadInstanceAdder]: Constructed 45 joinOtherThreadTransitions. [2023-11-29 07:12:41,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 443 places, 597 transitions, 1449 flow