./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8032b33-037e-4e79-90f3-11031659dae5/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8032b33-037e-4e79-90f3-11031659dae5/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8032b33-037e-4e79-90f3-11031659dae5/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8032b33-037e-4e79-90f3-11031659dae5/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8032b33-037e-4e79-90f3-11031659dae5/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8032b33-037e-4e79-90f3-11031659dae5/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:00:54,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:00:54,300 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8032b33-037e-4e79-90f3-11031659dae5/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 02:00:54,310 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:00:54,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:00:54,337 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:00:54,338 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:00:54,338 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:00:54,338 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:00:54,339 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:00:54,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:00:54,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:00:54,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:00:54,339 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:00:54,340 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:00:54,340 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:00:54,340 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:00:54,340 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 02:00:54,340 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:00:54,340 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 02:00:54,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:00:54,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:00:54,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:00:54,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:00:54,341 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 02:00:54,341 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:00:54,341 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:00:54,341 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:00:54,342 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:00:54,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:00:54,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:00:54,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:00:54,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:00:54,342 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:00:54,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:00:54,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:00:54,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:00:54,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:00:54,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:00:54,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:00:54,343 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:00:54,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:00:54,343 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 02:00:54,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 02:00:54,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:00:54,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:00:54,344 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:00:54,344 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:00:54,344 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_d8032b33-037e-4e79-90f3-11031659dae5/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c [2024-11-24 02:00:54,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:00:54,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:00:54,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:00:54,686 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:00:54,686 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:00:54,688 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8032b33-037e-4e79-90f3-11031659dae5/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2024-11-24 02:00:57,721 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8032b33-037e-4e79-90f3-11031659dae5/bin/uautomizer-verify-LYvppIcaGC/data/0b9b03905/072f13e495fb48558b58ba02fd16bcc8/FLAGec7a59c15 [2024-11-24 02:00:58,041 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:00:58,042 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8032b33-037e-4e79-90f3-11031659dae5/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2024-11-24 02:00:58,058 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8032b33-037e-4e79-90f3-11031659dae5/bin/uautomizer-verify-LYvppIcaGC/data/0b9b03905/072f13e495fb48558b58ba02fd16bcc8/FLAGec7a59c15 [2024-11-24 02:00:58,072 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8032b33-037e-4e79-90f3-11031659dae5/bin/uautomizer-verify-LYvppIcaGC/data/0b9b03905/072f13e495fb48558b58ba02fd16bcc8 [2024-11-24 02:00:58,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:00:58,076 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:00:58,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:00:58,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:00:58,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:00:58,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:00:58" (1/1) ... [2024-11-24 02:00:58,084 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4418c2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:58, skipping insertion in model container [2024-11-24 02:00:58,084 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:00:58" (1/1) ... [2024-11-24 02:00:58,129 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:00:58,778 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_d8032b33-037e-4e79-90f3-11031659dae5/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2024-11-24 02:00:58,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:00:58,862 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:00:58,911 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_d8032b33-037e-4e79-90f3-11031659dae5/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2024-11-24 02:00:58,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:00:58,999 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:00:59,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:58 WrapperNode [2024-11-24 02:00:59,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:00:59,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:00:59,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:00:59,002 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:00:59,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:58" (1/1) ... [2024-11-24 02:00:59,025 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:58" (1/1) ... [2024-11-24 02:00:59,057 INFO L138 Inliner]: procedures = 280, calls = 98, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 397 [2024-11-24 02:00:59,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:00:59,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:00:59,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:00:59,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:00:59,071 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:58" (1/1) ... [2024-11-24 02:00:59,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:58" (1/1) ... [2024-11-24 02:00:59,080 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:58" (1/1) ... [2024-11-24 02:00:59,130 INFO L175 MemorySlicer]: Split 56 memory accesses to 9 slices as follows [2, 5, 2, 28, 5, 5, 5, 2, 2]. 50 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 5, 0, 0, 5, 5, 5, 0, 0]. The 17 writes are split as follows [0, 0, 1, 14, 0, 0, 0, 1, 1]. [2024-11-24 02:00:59,131 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:58" (1/1) ... [2024-11-24 02:00:59,131 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:58" (1/1) ... [2024-11-24 02:00:59,168 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:58" (1/1) ... [2024-11-24 02:00:59,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:58" (1/1) ... [2024-11-24 02:00:59,178 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:58" (1/1) ... [2024-11-24 02:00:59,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:58" (1/1) ... [2024-11-24 02:00:59,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:58" (1/1) ... [2024-11-24 02:00:59,200 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:00:59,201 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:00:59,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:00:59,205 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:00:59,206 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:58" (1/1) ... [2024-11-24 02:00:59,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:00:59,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8032b33-037e-4e79-90f3-11031659dae5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:00:59,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8032b33-037e-4e79-90f3-11031659dae5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:00:59,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8032b33-037e-4e79-90f3-11031659dae5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:00:59,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 02:00:59,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 02:00:59,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 02:00:59,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 02:00:59,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 02:00:59,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 02:00:59,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 02:00:59,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 02:00:59,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 02:00:59,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-24 02:00:59,277 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-24 02:00:59,278 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-24 02:00:59,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 02:00:59,278 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 02:00:59,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 02:00:59,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 02:00:59,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 02:00:59,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 02:00:59,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 02:00:59,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 02:00:59,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 02:00:59,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 02:00:59,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-24 02:00:59,280 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-24 02:00:59,281 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-24 02:00:59,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 02:00:59,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 02:00:59,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 02:00:59,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 02:00:59,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 02:00:59,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 02:00:59,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 02:00:59,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 02:00:59,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-24 02:00:59,285 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 02:00:59,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 02:00:59,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:00:59,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 02:00:59,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 02:00:59,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 02:00:59,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 02:00:59,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 02:00:59,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 02:00:59,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 02:00:59,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 02:00:59,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-24 02:00:59,286 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-11-24 02:00:59,286 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-11-24 02:00:59,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 02:00:59,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 02:00:59,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 02:00:59,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 02:00:59,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 02:00:59,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 02:00:59,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 02:00:59,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 02:00:59,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 02:00:59,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:00:59,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:00:59,289 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 02:00:59,564 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:00:59,567 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:01:00,388 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 02:01:00,388 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:01:00,838 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:01:00,838 INFO L312 CfgBuilder]: Removed 19 assume(true) statements. [2024-11-24 02:01:00,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:00 BoogieIcfgContainer [2024-11-24 02:01:00,839 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:01:00,841 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:01:00,842 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:01:00,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:01:00,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:00:58" (1/3) ... [2024-11-24 02:01:00,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4111dd99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:01:00, skipping insertion in model container [2024-11-24 02:01:00,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:58" (2/3) ... [2024-11-24 02:01:00,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4111dd99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:01:00, skipping insertion in model container [2024-11-24 02:01:00,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:00" (3/3) ... [2024-11-24 02:01:00,850 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2024-11-24 02:01:00,869 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:01:00,870 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_84-list2_racing2.i that has 4 procedures, 108 locations, 1 initial locations, 19 loop locations, and 2 error locations. [2024-11-24 02:01:00,872 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 02:01:01,002 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-11-24 02:01:01,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 149 transitions, 337 flow [2024-11-24 02:01:01,352 INFO L124 PetriNetUnfolderBase]: 136/550 cut-off events. [2024-11-24 02:01:01,358 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-24 02:01:01,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 550 events. 136/550 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3354 event pairs, 0 based on Foata normal form. 0/406 useless extension candidates. Maximal degree in co-relation 287. Up to 16 conditions per place. [2024-11-24 02:01:01,379 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 149 transitions, 337 flow [2024-11-24 02:01:01,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 149 transitions, 337 flow [2024-11-24 02:01:01,410 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:01:01,429 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;@38f1d84a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:01:01,430 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-24 02:01:01,446 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 02:01:01,446 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-24 02:01:01,446 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 02:01:01,446 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:01:01,447 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-24 02:01:01,448 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)] === [2024-11-24 02:01:01,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:01,456 INFO L85 PathProgramCache]: Analyzing trace with hash 761435141, now seen corresponding path program 1 times [2024-11-24 02:01:01,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:01,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548602177] [2024-11-24 02:01:01,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:01,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:01:01,714 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:01:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:01:01,809 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 02:01:01,812 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 02:01:01,813 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-24 02:01:01,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-11-24 02:01:01,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2024-11-24 02:01:01,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-24 02:01:01,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-24 02:01:01,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-11-24 02:01:01,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-11-24 02:01:01,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 02:01:01,817 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-24 02:01:01,821 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 02:01:01,821 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-24 02:01:01,980 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-11-24 02:01:01,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 201 places, 264 transitions, 612 flow [2024-11-24 02:01:02,733 INFO L124 PetriNetUnfolderBase]: 929/2803 cut-off events. [2024-11-24 02:01:02,734 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2024-11-24 02:01:02,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3451 conditions, 2803 events. 929/2803 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 22415 event pairs, 22 based on Foata normal form. 0/2158 useless extension candidates. Maximal degree in co-relation 1909. Up to 192 conditions per place. [2024-11-24 02:01:02,774 INFO L82 GeneralOperation]: Start removeDead. Operand has 201 places, 264 transitions, 612 flow [2024-11-24 02:01:02,870 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 201 places, 264 transitions, 612 flow [2024-11-24 02:01:02,873 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:01:02,876 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;@38f1d84a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:01:02,876 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-24 02:01:02,894 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 02:01:02,894 INFO L124 PetriNetUnfolderBase]: 4/66 cut-off events. [2024-11-24 02:01:02,894 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 02:01:02,894 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:01:02,894 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-11-24 02:01:02,895 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-24 02:01:02,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:02,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1781824546, now seen corresponding path program 1 times [2024-11-24 02:01:02,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:02,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860465137] [2024-11-24 02:01:02,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:02,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:01:03,009 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:01:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:01:03,094 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 02:01:03,094 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 02:01:03,094 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-24 02:01:03,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2024-11-24 02:01:03,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2024-11-24 02:01:03,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2024-11-24 02:01:03,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-24 02:01:03,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2024-11-24 02:01:03,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2024-11-24 02:01:03,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2024-11-24 02:01:03,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2024-11-24 02:01:03,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 02:01:03,096 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-24 02:01:03,096 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 02:01:03,096 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-24 02:01:03,293 INFO L143 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2024-11-24 02:01:03,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 285 places, 379 transitions, 893 flow [2024-11-24 02:01:08,027 INFO L124 PetriNetUnfolderBase]: 7432/15556 cut-off events. [2024-11-24 02:01:08,027 INFO L125 PetriNetUnfolderBase]: For 7059/7059 co-relation queries the response was YES. [2024-11-24 02:01:08,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22667 conditions, 15556 events. 7432/15556 cut-off events. For 7059/7059 co-relation queries the response was YES. Maximal size of possible extension queue 482. Compared 129966 event pairs, 912 based on Foata normal form. 0/12908 useless extension candidates. Maximal degree in co-relation 11615. Up to 2304 conditions per place. [2024-11-24 02:01:08,445 INFO L82 GeneralOperation]: Start removeDead. Operand has 285 places, 379 transitions, 893 flow [2024-11-24 02:01:09,240 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 285 places, 379 transitions, 893 flow [2024-11-24 02:01:09,242 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:01:09,244 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;@38f1d84a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:01:09,245 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-24 02:01:09,274 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 02:01:09,275 INFO L124 PetriNetUnfolderBase]: 16/167 cut-off events. [2024-11-24 02:01:09,276 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-24 02:01:09,276 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 02:01:09,276 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2024-11-24 02:01:09,277 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-24 02:01:09,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:09,277 INFO L85 PathProgramCache]: Analyzing trace with hash 882132452, now seen corresponding path program 1 times [2024-11-24 02:01:09,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:09,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547129281] [2024-11-24 02:01:09,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:09,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:01:09,426 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:01:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:01:09,524 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 02:01:09,525 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 02:01:09,525 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-24 02:01:09,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2024-11-24 02:01:09,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2024-11-24 02:01:09,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2024-11-24 02:01:09,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2024-11-24 02:01:09,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2024-11-24 02:01:09,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2024-11-24 02:01:09,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2024-11-24 02:01:09,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2024-11-24 02:01:09,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2024-11-24 02:01:09,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2024-11-24 02:01:09,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 02:01:09,526 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-24 02:01:09,527 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 02:01:09,527 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-24 02:01:09,929 INFO L143 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2024-11-24 02:01:09,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 494 transitions, 1180 flow