./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_b98c23e9-de84-4aa6-9737-bcab71a27c12/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98c23e9-de84-4aa6-9737-bcab71a27c12/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_b98c23e9-de84-4aa6-9737-bcab71a27c12/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98c23e9-de84-4aa6-9737-bcab71a27c12/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98c23e9-de84-4aa6-9737-bcab71a27c12/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_b98c23e9-de84-4aa6-9737-bcab71a27c12/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 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:28:23,662 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:28:23,756 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98c23e9-de84-4aa6-9737-bcab71a27c12/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:28:23,761 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:28:23,762 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:28:23,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:28:23,791 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:28:23,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:28:23,793 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:28:23,793 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:28:23,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:28:23,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:28:23,795 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:28:23,796 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:28:23,797 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:28:23,797 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:28:23,798 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:28:23,798 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:28:23,799 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:28:23,800 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:28:23,800 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:28:23,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:28:23,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:28:23,805 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:28:23,805 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:28:23,806 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:28:23,806 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:28:23,806 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:28:23,807 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:28:23,807 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:28:23,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:28:23,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:28:23,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:28:23,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:28:23,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:28:23,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:28:23,814 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:28:23,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:28:23,816 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:28:23,816 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:28:23,816 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:28:23,817 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:28:23,818 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_b98c23e9-de84-4aa6-9737-bcab71a27c12/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98c23e9-de84-4aa6-9737-bcab71a27c12/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b [2024-11-08 16:28:24,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:28:24,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:28:24,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:28:24,159 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:28:24,160 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:28:24,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98c23e9-de84-4aa6-9737-bcab71a27c12/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i Unable to find full path for "g++" [2024-11-08 16:28:26,499 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:28:26,990 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:28:26,992 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98c23e9-de84-4aa6-9737-bcab71a27c12/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2024-11-08 16:28:27,021 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98c23e9-de84-4aa6-9737-bcab71a27c12/bin/uautomizer-verify-jihMAELWvX/data/4bc891409/b7672d32260b4933848ff008da678ee1/FLAG40dadfd9f [2024-11-08 16:28:27,043 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98c23e9-de84-4aa6-9737-bcab71a27c12/bin/uautomizer-verify-jihMAELWvX/data/4bc891409/b7672d32260b4933848ff008da678ee1 [2024-11-08 16:28:27,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:28:27,051 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:28:27,052 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:28:27,053 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:28:27,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:28:27,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:28:27" (1/1) ... [2024-11-08 16:28:27,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21b73cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:27, skipping insertion in model container [2024-11-08 16:28:27,065 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:28:27" (1/1) ... [2024-11-08 16:28:27,140 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:28:27,816 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_b98c23e9-de84-4aa6-9737-bcab71a27c12/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i[47038,47051] [2024-11-08 16:28:27,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:28:27,892 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:28:27,949 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_b98c23e9-de84-4aa6-9737-bcab71a27c12/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i[47038,47051] [2024-11-08 16:28:27,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:28:28,075 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:28:28,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:28 WrapperNode [2024-11-08 16:28:28,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:28:28,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:28:28,078 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:28:28,078 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:28:28,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:28" (1/1) ... [2024-11-08 16:28:28,110 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:28" (1/1) ... [2024-11-08 16:28:28,147 INFO L138 Inliner]: procedures = 279, calls = 59, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 254 [2024-11-08 16:28:28,153 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:28:28,154 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:28:28,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:28:28,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:28:28,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:28" (1/1) ... [2024-11-08 16:28:28,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:28" (1/1) ... [2024-11-08 16:28:28,176 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:28" (1/1) ... [2024-11-08 16:28:28,208 INFO L175 MemorySlicer]: Split 30 memory accesses to 6 slices as follows [2, 5, 5, 2, 14, 2]. 47 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0, 0, 0]. The 10 writes are split as follows [0, 0, 0, 1, 8, 1]. [2024-11-08 16:28:28,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:28" (1/1) ... [2024-11-08 16:28:28,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:28" (1/1) ... [2024-11-08 16:28:28,226 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:28" (1/1) ... [2024-11-08 16:28:28,235 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:28" (1/1) ... [2024-11-08 16:28:28,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:28" (1/1) ... [2024-11-08 16:28:28,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:28" (1/1) ... [2024-11-08 16:28:28,247 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:28:28,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:28:28,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:28:28,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:28:28,251 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:28" (1/1) ... [2024-11-08 16:28:28,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:28:28,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98c23e9-de84-4aa6-9737-bcab71a27c12/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:28:28,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98c23e9-de84-4aa6-9737-bcab71a27c12/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:28:28,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98c23e9-de84-4aa6-9737-bcab71a27c12/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:28:28,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:28:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 16:28:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 16:28:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 16:28:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 16:28:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 16:28:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 16:28:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-08 16:28:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-08 16:28:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:28:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 16:28:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:28:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:28:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 16:28:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 16:28:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 16:28:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 16:28:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-08 16:28:28,371 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-08 16:28:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:28:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:28:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 16:28:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 16:28:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 16:28:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 16:28:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 16:28:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 16:28:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:28:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 16:28:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 16:28:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 16:28:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-08 16:28:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-08 16:28:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-08 16:28:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:28:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:28:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 16:28:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 16:28:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 16:28:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 16:28:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:28:28,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:28:28,381 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 16:28:28,602 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:28:28,604 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:28:29,113 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:28:29,113 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:28:29,716 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:28:29,717 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-08 16:28:29,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:28:29 BoogieIcfgContainer [2024-11-08 16:28:29,718 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:28:29,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:28:29,721 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:28:29,727 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:28:29,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:28:27" (1/3) ... [2024-11-08 16:28:29,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f8bea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:28:29, skipping insertion in model container [2024-11-08 16:28:29,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:28" (2/3) ... [2024-11-08 16:28:29,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f8bea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:28:29, skipping insertion in model container [2024-11-08 16:28:29,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:28:29" (3/3) ... [2024-11-08 16:28:29,731 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_81-list_racing.i [2024-11-08 16:28:29,754 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:28:29,755 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:28:29,755 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:28:29,855 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 16:28:29,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 84 transitions, 188 flow [2024-11-08 16:28:30,010 INFO L124 PetriNetUnfolderBase]: 50/191 cut-off events. [2024-11-08 16:28:30,011 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-08 16:28:30,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 191 events. 50/191 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 758 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 98. Up to 8 conditions per place. [2024-11-08 16:28:30,017 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 84 transitions, 188 flow [2024-11-08 16:28:30,021 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 82 transitions, 178 flow [2024-11-08 16:28:30,034 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:28:30,040 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;@111ccb4c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:28:30,041 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-08 16:28:30,054 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:28:30,054 INFO L124 PetriNetUnfolderBase]: 7/40 cut-off events. [2024-11-08 16:28:30,055 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:28:30,055 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:28:30,056 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 16:28:30,056 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-08 16:28:30,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:30,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1877553382, now seen corresponding path program 1 times [2024-11-08 16:28:30,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:30,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134056205] [2024-11-08 16:28:30,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:30,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:28:30,418 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:28:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:28:30,562 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:28:30,565 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:28:30,567 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-11-08 16:28:30,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-11-08 16:28:30,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-08 16:28:30,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-11-08 16:28:30,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:28:30,572 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 16:28:30,581 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 16:28:30,581 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 16:28:30,677 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-08 16:28:30,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 141 transitions, 326 flow [2024-11-08 16:28:30,850 INFO L124 PetriNetUnfolderBase]: 185/621 cut-off events. [2024-11-08 16:28:30,850 INFO L125 PetriNetUnfolderBase]: For 72/78 co-relation queries the response was YES. [2024-11-08 16:28:30,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 710 conditions, 621 events. 185/621 cut-off events. For 72/78 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3439 event pairs, 2 based on Foata normal form. 0/443 useless extension candidates. Maximal degree in co-relation 398. Up to 32 conditions per place. [2024-11-08 16:28:30,868 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 141 transitions, 326 flow [2024-11-08 16:28:30,878 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 141 transitions, 326 flow [2024-11-08 16:28:30,882 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:28:30,885 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;@111ccb4c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:28:30,885 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-08 16:28:30,909 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:28:30,909 INFO L124 PetriNetUnfolderBase]: 17/98 cut-off events. [2024-11-08 16:28:30,909 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 16:28:30,910 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:28:30,910 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1] [2024-11-08 16:28:30,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-08 16:28:30,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:30,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1720466736, now seen corresponding path program 1 times [2024-11-08 16:28:30,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:30,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063283065] [2024-11-08 16:28:30,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:30,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:28:31,120 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:28:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:28:31,213 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:28:31,213 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:28:31,214 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-08 16:28:31,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-08 16:28:31,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-08 16:28:31,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-11-08 16:28:31,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-08 16:28:31,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:28:31,215 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 16:28:31,216 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 16:28:31,216 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 16:28:31,356 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-11-08 16:28:31,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 198 transitions, 468 flow [2024-11-08 16:28:31,817 INFO L124 PetriNetUnfolderBase]: 652/1853 cut-off events. [2024-11-08 16:28:31,818 INFO L125 PetriNetUnfolderBase]: For 419/435 co-relation queries the response was YES. [2024-11-08 16:28:31,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2289 conditions, 1853 events. 652/1853 cut-off events. For 419/435 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 12102 event pairs, 64 based on Foata normal form. 0/1377 useless extension candidates. Maximal degree in co-relation 1262. Up to 192 conditions per place. [2024-11-08 16:28:31,844 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 198 transitions, 468 flow [2024-11-08 16:28:31,885 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 198 transitions, 468 flow [2024-11-08 16:28:31,888 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:28:31,890 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;@111ccb4c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:28:31,891 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-08 16:28:31,923 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:28:31,924 INFO L124 PetriNetUnfolderBase]: 37/197 cut-off events. [2024-11-08 16:28:31,924 INFO L125 PetriNetUnfolderBase]: For 20/22 co-relation queries the response was YES. [2024-11-08 16:28:31,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:28:31,926 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1] [2024-11-08 16:28:31,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-08 16:28:31,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:31,928 INFO L85 PathProgramCache]: Analyzing trace with hash 260852963, now seen corresponding path program 1 times [2024-11-08 16:28:31,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:31,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96803655] [2024-11-08 16:28:31,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:31,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:28:32,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:28:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:28:32,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:28:32,138 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:28:32,139 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-08 16:28:32,139 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-08 16:28:32,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-08 16:28:32,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2024-11-08 16:28:32,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-11-08 16:28:32,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-08 16:28:32,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:28:32,141 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 16:28:32,142 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 16:28:32,142 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-08 16:28:32,267 INFO L143 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2024-11-08 16:28:32,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 255 transitions, 614 flow [2024-11-08 16:28:34,335 INFO L124 PetriNetUnfolderBase]: 2639/6263 cut-off events. [2024-11-08 16:28:34,335 INFO L125 PetriNetUnfolderBase]: For 2144/2184 co-relation queries the response was YES. [2024-11-08 16:28:34,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8404 conditions, 6263 events. 2639/6263 cut-off events. For 2144/2184 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 46978 event pairs, 626 based on Foata normal form. 0/4879 useless extension candidates. Maximal degree in co-relation 4309. Up to 1024 conditions per place. [2024-11-08 16:28:34,456 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 255 transitions, 614 flow [2024-11-08 16:28:34,632 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 196 places, 255 transitions, 614 flow [2024-11-08 16:28:34,635 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:28:34,636 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;@111ccb4c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:28:34,636 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-08 16:28:34,666 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:28:34,666 INFO L124 PetriNetUnfolderBase]: 47/249 cut-off events. [2024-11-08 16:28:34,667 INFO L125 PetriNetUnfolderBase]: For 39/47 co-relation queries the response was YES. [2024-11-08 16:28:34,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:28:34,667 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:34,667 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 16:28:34,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:34,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1645537674, now seen corresponding path program 1 times [2024-11-08 16:28:34,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:34,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068659472] [2024-11-08 16:28:34,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:34,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:34,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:34,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:34,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068659472] [2024-11-08 16:28:34,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068659472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:34,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:34,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:28:34,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843617945] [2024-11-08 16:28:34,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:34,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:28:34,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:34,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:28:34,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:28:34,916 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 255 [2024-11-08 16:28:34,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 255 transitions, 614 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:28:34,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:28:34,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 255 [2024-11-08 16:28:34,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand