./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e5abb7-226c-44e3-9dce-47134a9cb7e9/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e5abb7-226c-44e3-9dce-47134a9cb7e9/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e5abb7-226c-44e3-9dce-47134a9cb7e9/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e5abb7-226c-44e3-9dce-47134a9cb7e9/bin/uautomizer-verify-84ZbGMXZE1/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_67e5abb7-226c-44e3-9dce-47134a9cb7e9/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e5abb7-226c-44e3-9dce-47134a9cb7e9/bin/uautomizer-verify-84ZbGMXZE1 --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 0.3.0-dev-d790fec [2024-12-02 11:38:25,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:38:25,075 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e5abb7-226c-44e3-9dce-47134a9cb7e9/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:38:25,079 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:38:25,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:38:25,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:38:25,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:38:25,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:38:25,102 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:38:25,102 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:38:25,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:38:25,103 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:38:25,103 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:38:25,103 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:38:25,103 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:38:25,103 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:38:25,103 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:38:25,103 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:38:25,104 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:38:25,104 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:38:25,104 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:38:25,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:38:25,104 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:38:25,104 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:38:25,104 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:38:25,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:38:25,104 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:38:25,104 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:38:25,104 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:38:25,104 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:38:25,104 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:38:25,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:38:25,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:38:25,105 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:38:25,105 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:38:25,105 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:38:25,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:38:25,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:38:25,105 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:38:25,105 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:38:25,105 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:38:25,105 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:38:25,106 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:38:25,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:38:25,106 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:38:25,106 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:38:25,106 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:38:25,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:38:25,106 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_67e5abb7-226c-44e3-9dce-47134a9cb7e9/bin/uautomizer-verify-84ZbGMXZE1 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 [2024-12-02 11:38:25,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:38:25,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:38:25,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:38:25,357 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:38:25,358 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:38:25,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e5abb7-226c-44e3-9dce-47134a9cb7e9/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2024-12-02 11:38:27,985 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e5abb7-226c-44e3-9dce-47134a9cb7e9/bin/uautomizer-verify-84ZbGMXZE1/data/2440dcf2f/cce48aaa3eb842c993c5380b7a90757e/FLAG40e3ce877 [2024-12-02 11:38:28,247 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:38:28,248 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e5abb7-226c-44e3-9dce-47134a9cb7e9/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2024-12-02 11:38:28,262 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e5abb7-226c-44e3-9dce-47134a9cb7e9/bin/uautomizer-verify-84ZbGMXZE1/data/2440dcf2f/cce48aaa3eb842c993c5380b7a90757e/FLAG40e3ce877 [2024-12-02 11:38:28,571 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e5abb7-226c-44e3-9dce-47134a9cb7e9/bin/uautomizer-verify-84ZbGMXZE1/data/2440dcf2f/cce48aaa3eb842c993c5380b7a90757e [2024-12-02 11:38:28,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:38:28,575 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:38:28,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:38:28,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:38:28,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:38:28,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:38:28" (1/1) ... [2024-12-02 11:38:28,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328dc23e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:28, skipping insertion in model container [2024-12-02 11:38:28,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:38:28" (1/1) ... [2024-12-02 11:38:28,609 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:38:28,951 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_67e5abb7-226c-44e3-9dce-47134a9cb7e9/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2024-12-02 11:38:28,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:38:29,005 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:38:29,044 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_67e5abb7-226c-44e3-9dce-47134a9cb7e9/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2024-12-02 11:38:29,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:38:29,111 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:38:29,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:29 WrapperNode [2024-12-02 11:38:29,111 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:38:29,112 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:38:29,112 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:38:29,112 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:38:29,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:29" (1/1) ... [2024-12-02 11:38:29,130 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:29" (1/1) ... [2024-12-02 11:38:29,150 INFO L138 Inliner]: procedures = 280, calls = 96, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 353 [2024-12-02 11:38:29,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:38:29,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:38:29,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:38:29,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:38:29,157 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:29" (1/1) ... [2024-12-02 11:38:29,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:29" (1/1) ... [2024-12-02 11:38:29,162 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:29" (1/1) ... [2024-12-02 11:38:29,187 INFO L175 MemorySlicer]: Split 51 memory accesses to 9 slices as follows [2, 5, 23, 5, 2, 5, 5, 2, 2]. 45 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 5, 0, 5, 0, 5, 5, 0, 0]. The 15 writes are split as follows [0, 0, 12, 0, 1, 0, 0, 1, 1]. [2024-12-02 11:38:29,187 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:29" (1/1) ... [2024-12-02 11:38:29,188 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:29" (1/1) ... [2024-12-02 11:38:29,202 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:29" (1/1) ... [2024-12-02 11:38:29,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:29" (1/1) ... [2024-12-02 11:38:29,207 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:29" (1/1) ... [2024-12-02 11:38:29,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:29" (1/1) ... [2024-12-02 11:38:29,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:29" (1/1) ... [2024-12-02 11:38:29,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:38:29,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:38:29,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:38:29,218 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:38:29,219 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:29" (1/1) ... [2024-12-02 11:38:29,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:38:29,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e5abb7-226c-44e3-9dce-47134a9cb7e9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:38:29,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e5abb7-226c-44e3-9dce-47134a9cb7e9/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:38:29,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e5abb7-226c-44e3-9dce-47134a9cb7e9/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:38:29,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 11:38:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 11:38:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 11:38:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 11:38:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 11:38:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 11:38:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 11:38:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 11:38:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 11:38:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 11:38:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-12-02 11:38:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-12-02 11:38:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 11:38:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 11:38:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 11:38:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 11:38:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 11:38:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 11:38:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 11:38:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 11:38:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 11:38:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 11:38:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 11:38:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-12-02 11:38:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-12-02 11:38:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 11:38:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 11:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 11:38:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 11:38:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 11:38:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-12-02 11:38:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-12-02 11:38:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:38:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:38:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:38:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 11:38:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 11:38:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 11:38:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 11:38:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 11:38:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 11:38:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:38:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:38:29,272 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 11:38:29,448 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:38:29,449 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:38:29,900 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 11:38:29,900 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:38:30,191 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:38:30,192 INFO L312 CfgBuilder]: Removed 18 assume(true) statements. [2024-12-02 11:38:30,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:38:30 BoogieIcfgContainer [2024-12-02 11:38:30,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:38:30,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:38:30,194 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:38:30,200 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:38:30,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:38:28" (1/3) ... [2024-12-02 11:38:30,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2921ba9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:38:30, skipping insertion in model container [2024-12-02 11:38:30,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:29" (2/3) ... [2024-12-02 11:38:30,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2921ba9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:38:30, skipping insertion in model container [2024-12-02 11:38:30,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:38:30" (3/3) ... [2024-12-02 11:38:30,202 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2024-12-02 11:38:30,219 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:38:30,220 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_83-list2_racing1.i that has 4 procedures, 98 locations, 1 initial locations, 18 loop locations, and 2 error locations. [2024-12-02 11:38:30,220 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 11:38:30,309 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-12-02 11:38:30,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 137 transitions, 313 flow [2024-12-02 11:38:30,457 INFO L124 PetriNetUnfolderBase]: 120/454 cut-off events. [2024-12-02 11:38:30,459 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-12-02 11:38:30,468 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 30. Compared 2612 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. [2024-12-02 11:38:30,468 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 137 transitions, 313 flow [2024-12-02 11:38:30,476 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 137 transitions, 313 flow [2024-12-02 11:38:30,483 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:38:30,493 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;@5241fb97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:38:30,493 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-12-02 11:38:30,500 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 11:38:30,501 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2024-12-02 11:38:30,501 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 11:38:30,501 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:38:30,501 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-12-02 11:38:30,502 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 11:38:30,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:30,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1682573761, now seen corresponding path program 1 times [2024-12-02 11:38:30,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:30,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134928424] [2024-12-02 11:38:30,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:30,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:38:30,657 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:38:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:38:30,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 11:38:30,720 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:38:30,721 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-12-02 11:38:30,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-12-02 11:38:30,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2024-12-02 11:38:30,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-12-02 11:38:30,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-12-02 11:38:30,724 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-12-02 11:38:30,724 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-12-02 11:38:30,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:38:30,724 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-02 11:38:30,728 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 11:38:30,728 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-02 11:38:30,833 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-12-02 11:38:30,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 252 transitions, 588 flow [2024-12-02 11:38:31,285 INFO L124 PetriNetUnfolderBase]: 875/2479 cut-off events. [2024-12-02 11:38:31,285 INFO L125 PetriNetUnfolderBase]: For 602/698 co-relation queries the response was YES. [2024-12-02 11:38:31,315 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 160. Compared 19763 event pairs, 22 based on Foata normal form. 0/1810 useless extension candidates. Maximal degree in co-relation 1693. Up to 192 conditions per place. [2024-12-02 11:38:31,315 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 252 transitions, 588 flow [2024-12-02 11:38:31,340 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 252 transitions, 588 flow [2024-12-02 11:38:31,342 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:38:31,342 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;@5241fb97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:38:31,342 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-12-02 11:38:31,352 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 11:38:31,352 INFO L124 PetriNetUnfolderBase]: 2/68 cut-off events. [2024-12-02 11:38:31,352 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-12-02 11:38:31,352 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:38:31,352 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-12-02 11:38:31,352 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-12-02 11:38:31,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:31,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1236900216, now seen corresponding path program 1 times [2024-12-02 11:38:31,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:31,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832968541] [2024-12-02 11:38:31,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:31,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:38:31,409 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:38:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:38:31,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 11:38:31,448 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:38:31,448 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-12-02 11:38:31,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2024-12-02 11:38:31,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2024-12-02 11:38:31,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2024-12-02 11:38:31,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-12-02 11:38:31,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2024-12-02 11:38:31,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2024-12-02 11:38:31,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2024-12-02 11:38:31,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2024-12-02 11:38:31,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:38:31,449 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-02 11:38:31,450 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 11:38:31,450 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-12-02 11:38:31,560 INFO L143 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2024-12-02 11:38:31,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 367 transitions, 869 flow [2024-12-02 11:38:34,862 INFO L124 PetriNetUnfolderBase]: 7304/14788 cut-off events. [2024-12-02 11:38:34,863 INFO L125 PetriNetUnfolderBase]: For 7059/7561 co-relation queries the response was YES. [2024-12-02 11:38:35,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21899 conditions, 14788 events. 7304/14788 cut-off events. For 7059/7561 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 123478 event pairs, 1024 based on Foata normal form. 0/12032 useless extension candidates. Maximal degree in co-relation 11039. Up to 2304 conditions per place. [2024-12-02 11:38:35,137 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 367 transitions, 869 flow [2024-12-02 11:38:35,471 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 367 transitions, 869 flow [2024-12-02 11:38:35,472 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:38:35,472 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;@5241fb97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:38:35,472 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-12-02 11:38:35,484 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 11:38:35,484 INFO L124 PetriNetUnfolderBase]: 8/166 cut-off events. [2024-12-02 11:38:35,484 INFO L125 PetriNetUnfolderBase]: For 25/27 co-relation queries the response was YES. [2024-12-02 11:38:35,484 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:38:35,484 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2024-12-02 11:38:35,485 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-12-02 11:38:35,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:35,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1276035040, now seen corresponding path program 1 times [2024-12-02 11:38:35,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:35,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940646567] [2024-12-02 11:38:35,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:35,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:38:35,532 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:38:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:38:35,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 11:38:35,566 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:38:35,566 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-12-02 11:38:35,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2024-12-02 11:38:35,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2024-12-02 11:38:35,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2024-12-02 11:38:35,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2024-12-02 11:38:35,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2024-12-02 11:38:35,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2024-12-02 11:38:35,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2024-12-02 11:38:35,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2024-12-02 11:38:35,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2024-12-02 11:38:35,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2024-12-02 11:38:35,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:38:35,568 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-02 11:38:35,570 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 11:38:35,570 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-12-02 11:38:35,694 INFO L143 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2024-12-02 11:38:35,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 482 transitions, 1156 flow [2024-12-02 11:39:05,080 INFO L124 PetriNetUnfolderBase]: 71437/117079 cut-off events. [2024-12-02 11:39:05,080 INFO L125 PetriNetUnfolderBase]: For 74224/75962 co-relation queries the response was YES. [2024-12-02 11:39:09,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191254 conditions, 117079 events. 71437/117079 cut-off events. For 74224/75962 co-relation queries the response was YES. Maximal size of possible extension queue 2933. Compared 996499 event pairs, 13601 based on Foata normal form. 0/102266 useless extension candidates. Maximal degree in co-relation 91552. Up to 24576 conditions per place. [2024-12-02 11:39:09,493 INFO L82 GeneralOperation]: Start removeDead. Operand has 359 places, 482 transitions, 1156 flow [2024-12-02 11:39:12,854 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 482 transitions, 1156 flow [2024-12-02 11:39:12,855 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:39:12,856 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;@5241fb97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:39:12,856 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-12-02 11:39:12,878 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 11:39:12,878 INFO L124 PetriNetUnfolderBase]: 23/350 cut-off events. [2024-12-02 11:39:12,878 INFO L125 PetriNetUnfolderBase]: For 77/80 co-relation queries the response was YES. [2024-12-02 11:39:12,878 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:39:12,879 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2024-12-02 11:39:12,879 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-12-02 11:39:12,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:12,879 INFO L85 PathProgramCache]: Analyzing trace with hash 40907534, now seen corresponding path program 1 times [2024-12-02 11:39:12,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:12,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832437720] [2024-12-02 11:39:12,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:12,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:12,925 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:39:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:39:12,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 11:39:12,962 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:39:12,963 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-12-02 11:39:12,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 13 remaining) [2024-12-02 11:39:12,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 13 remaining) [2024-12-02 11:39:12,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 13 remaining) [2024-12-02 11:39:12,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2024-12-02 11:39:12,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 13 remaining) [2024-12-02 11:39:12,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 13 remaining) [2024-12-02 11:39:12,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 13 remaining) [2024-12-02 11:39:12,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 13 remaining) [2024-12-02 11:39:12,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 13 remaining) [2024-12-02 11:39:12,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 13 remaining) [2024-12-02 11:39:12,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 13 remaining) [2024-12-02 11:39:12,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 13 remaining) [2024-12-02 11:39:12,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:39:12,965 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-02 11:39:12,965 WARN L246 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 11:39:12,965 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-12-02 11:39:13,111 INFO L143 ThreadInstanceAdder]: Constructed 45 joinOtherThreadTransitions. [2024-12-02 11:39:13,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 443 places, 597 transitions, 1449 flow