./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/03_incdec.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_b64d28a9-bb40-4725-a907-062bbc0ae93f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64d28a9-bb40-4725-a907-062bbc0ae93f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64d28a9-bb40-4725-a907-062bbc0ae93f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64d28a9-bb40-4725-a907-062bbc0ae93f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/03_incdec.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64d28a9-bb40-4725-a907-062bbc0ae93f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64d28a9-bb40-4725-a907-062bbc0ae93f/bin/uautomizer-verify-aQ6SnzHsRB --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 c7242322569cf2f27ee72f2a65e0d58ced23407c575f0c8898b19424239a034d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:31:25,253 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:31:25,363 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64d28a9-bb40-4725-a907-062bbc0ae93f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:31:25,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:31:25,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:31:25,399 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:31:25,400 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:31:25,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:31:25,400 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:31:25,401 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:31:25,402 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:31:25,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:31:25,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:31:25,404 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:31:25,405 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:31:25,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:31:25,406 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:31:25,406 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:31:25,406 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:31:25,406 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:31:25,406 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:31:25,406 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:31:25,406 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:31:25,406 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:31:25,406 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:31:25,406 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:31:25,406 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:31:25,406 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:31:25,406 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:31:25,407 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:31:25,407 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:31:25,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:31:25,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:31:25,407 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:31:25,407 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:31:25,407 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:31:25,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:31:25,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:31:25,409 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:31:25,409 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:31:25,409 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:31:25,409 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:31:25,409 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:31:25,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:31:25,409 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:31:25,410 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:31:25,410 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:31:25,410 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:31:25,410 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_b64d28a9-bb40-4725-a907-062bbc0ae93f/bin/uautomizer-verify-aQ6SnzHsRB 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 -> c7242322569cf2f27ee72f2a65e0d58ced23407c575f0c8898b19424239a034d [2024-11-28 03:31:25,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:31:25,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:31:25,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:31:25,749 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:31:25,749 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:31:25,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64d28a9-bb40-4725-a907-062bbc0ae93f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-ext/03_incdec.i [2024-11-28 03:31:28,746 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64d28a9-bb40-4725-a907-062bbc0ae93f/bin/uautomizer-verify-aQ6SnzHsRB/data/8f7a1e812/c94d6798db1747099c8958f8dbe33e56/FLAGd9991becd [2024-11-28 03:31:29,133 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:31:29,134 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64d28a9-bb40-4725-a907-062bbc0ae93f/sv-benchmarks/c/pthread-ext/03_incdec.i [2024-11-28 03:31:29,149 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64d28a9-bb40-4725-a907-062bbc0ae93f/bin/uautomizer-verify-aQ6SnzHsRB/data/8f7a1e812/c94d6798db1747099c8958f8dbe33e56/FLAGd9991becd [2024-11-28 03:31:29,167 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64d28a9-bb40-4725-a907-062bbc0ae93f/bin/uautomizer-verify-aQ6SnzHsRB/data/8f7a1e812/c94d6798db1747099c8958f8dbe33e56 [2024-11-28 03:31:29,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:31:29,172 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:31:29,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:31:29,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:31:29,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:31:29,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:31:29" (1/1) ... [2024-11-28 03:31:29,182 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d876afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:29, skipping insertion in model container [2024-11-28 03:31:29,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:31:29" (1/1) ... [2024-11-28 03:31:29,234 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:31:29,631 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_b64d28a9-bb40-4725-a907-062bbc0ae93f/sv-benchmarks/c/pthread-ext/03_incdec.i[30737,30750] [2024-11-28 03:31:29,640 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_b64d28a9-bb40-4725-a907-062bbc0ae93f/sv-benchmarks/c/pthread-ext/03_incdec.i[31112,31125] [2024-11-28 03:31:29,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:31:29,670 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:31:29,737 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_b64d28a9-bb40-4725-a907-062bbc0ae93f/sv-benchmarks/c/pthread-ext/03_incdec.i[30737,30750] [2024-11-28 03:31:29,740 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_b64d28a9-bb40-4725-a907-062bbc0ae93f/sv-benchmarks/c/pthread-ext/03_incdec.i[31112,31125] [2024-11-28 03:31:29,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:31:29,787 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:31:29,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:29 WrapperNode [2024-11-28 03:31:29,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:31:29,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:31:29,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:31:29,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:31:29,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:29" (1/1) ... [2024-11-28 03:31:29,808 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:29" (1/1) ... [2024-11-28 03:31:29,827 INFO L138 Inliner]: procedures = 164, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2024-11-28 03:31:29,828 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:31:29,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:31:29,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:31:29,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:31:29,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:29" (1/1) ... [2024-11-28 03:31:29,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:29" (1/1) ... [2024-11-28 03:31:29,840 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:29" (1/1) ... [2024-11-28 03:31:29,864 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-11-28 03:31:29,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:29" (1/1) ... [2024-11-28 03:31:29,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:29" (1/1) ... [2024-11-28 03:31:29,874 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:29" (1/1) ... [2024-11-28 03:31:29,875 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:29" (1/1) ... [2024-11-28 03:31:29,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:29" (1/1) ... [2024-11-28 03:31:29,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:29" (1/1) ... [2024-11-28 03:31:29,881 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:29" (1/1) ... [2024-11-28 03:31:29,887 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:31:29,888 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:31:29,891 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:31:29,891 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:31:29,893 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:29" (1/1) ... [2024-11-28 03:31:29,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:31:29,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64d28a9-bb40-4725-a907-062bbc0ae93f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:31:29,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64d28a9-bb40-4725-a907-062bbc0ae93f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:31:29,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64d28a9-bb40-4725-a907-062bbc0ae93f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:31:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-28 03:31:29,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-28 03:31:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:31:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:31:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:31:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:31:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:31:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:31:29,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:31:29,982 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:31:30,189 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:31:30,192 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:31:30,542 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:31:30,543 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:31:30,681 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:31:30,685 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:31:30,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:31:30 BoogieIcfgContainer [2024-11-28 03:31:30,686 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:31:30,689 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:31:30,689 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:31:30,695 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:31:30,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:31:29" (1/3) ... [2024-11-28 03:31:30,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8d504b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:31:30, skipping insertion in model container [2024-11-28 03:31:30,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:29" (2/3) ... [2024-11-28 03:31:30,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8d504b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:31:30, skipping insertion in model container [2024-11-28 03:31:30,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:31:30" (3/3) ... [2024-11-28 03:31:30,698 INFO L128 eAbstractionObserver]: Analyzing ICFG 03_incdec.i [2024-11-28 03:31:30,717 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:31:30,719 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 03_incdec.i that has 2 procedures, 39 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-28 03:31:30,719 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:31:30,817 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:31:30,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 44 transitions, 92 flow [2024-11-28 03:31:30,900 INFO L124 PetriNetUnfolderBase]: 5/46 cut-off events. [2024-11-28 03:31:30,903 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:31:30,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 46 events. 5/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-11-28 03:31:30,907 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 44 transitions, 92 flow [2024-11-28 03:31:30,912 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 44 transitions, 92 flow [2024-11-28 03:31:30,927 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:31:30,954 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;@7f3be307, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:31:30,955 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-28 03:31:30,968 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:31:30,969 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-11-28 03:31:30,970 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:31:30,971 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:31:30,971 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-28 03:31:30,972 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 03:31:30,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:30,979 INFO L85 PathProgramCache]: Analyzing trace with hash -160051778, now seen corresponding path program 1 times [2024-11-28 03:31:30,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:30,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694469942] [2024-11-28 03:31:30,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:30,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:31:31,116 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:31:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:31:31,154 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:31:31,160 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:31:31,161 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-28 03:31:31,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-28 03:31:31,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-11-28 03:31:31,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-11-28 03:31:31,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-28 03:31:31,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:31:31,164 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-28 03:31:31,168 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:31:31,168 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 03:31:31,242 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:31:31,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 83 transitions, 176 flow [2024-11-28 03:31:31,273 INFO L124 PetriNetUnfolderBase]: 10/88 cut-off events. [2024-11-28 03:31:31,273 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:31:31,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 88 events. 10/88 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 303 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 79. Up to 3 conditions per place. [2024-11-28 03:31:31,275 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 83 transitions, 176 flow [2024-11-28 03:31:31,277 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 83 transitions, 176 flow [2024-11-28 03:31:31,278 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:31:31,279 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;@7f3be307, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:31:31,279 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 03:31:31,297 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:31:31,298 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-11-28 03:31:31,299 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:31:31,299 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:31:31,299 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-11-28 03:31:31,299 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:31:31,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:31,300 INFO L85 PathProgramCache]: Analyzing trace with hash 711317606, now seen corresponding path program 1 times [2024-11-28 03:31:31,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:31,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174306532] [2024-11-28 03:31:31,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:31,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:31:31,348 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:31:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:31:31,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:31:31,383 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:31:31,384 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-28 03:31:31,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-11-28 03:31:31,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2024-11-28 03:31:31,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2024-11-28 03:31:31,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2024-11-28 03:31:31,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-11-28 03:31:31,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-11-28 03:31:31,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:31:31,385 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-28 03:31:31,387 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:31:31,389 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-28 03:31:31,484 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:31:31,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 122 transitions, 262 flow [2024-11-28 03:31:31,562 INFO L124 PetriNetUnfolderBase]: 15/130 cut-off events. [2024-11-28 03:31:31,562 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-28 03:31:31,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 15/130 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 539 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 117. Up to 4 conditions per place. [2024-11-28 03:31:31,567 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 122 transitions, 262 flow [2024-11-28 03:31:31,570 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 122 transitions, 262 flow [2024-11-28 03:31:31,574 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:31:31,574 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;@7f3be307, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:31:31,575 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-28 03:31:31,595 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:31:31,595 INFO L124 PetriNetUnfolderBase]: 1/52 cut-off events. [2024-11-28 03:31:31,595 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-28 03:31:31,595 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:31:31,596 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2024-11-28 03:31:31,596 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-28 03:31:31,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:31,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1081016957, now seen corresponding path program 1 times [2024-11-28 03:31:31,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:31,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392246926] [2024-11-28 03:31:31,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:31,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:31:31,643 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:31:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:31:31,683 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:31:31,684 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:31:31,684 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-28 03:31:31,684 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2024-11-28 03:31:31,684 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2024-11-28 03:31:31,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (5 of 9 remaining) [2024-11-28 03:31:31,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2024-11-28 03:31:31,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2024-11-28 03:31:31,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2024-11-28 03:31:31,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2024-11-28 03:31:31,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2024-11-28 03:31:31,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:31:31,687 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-28 03:31:31,689 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:31:31,689 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-28 03:31:31,781 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:31:31,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 161 transitions, 350 flow [2024-11-28 03:31:31,836 INFO L124 PetriNetUnfolderBase]: 20/172 cut-off events. [2024-11-28 03:31:31,836 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-28 03:31:31,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 172 events. 20/172 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 777 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 155. Up to 5 conditions per place. [2024-11-28 03:31:31,840 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 161 transitions, 350 flow [2024-11-28 03:31:31,848 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 161 transitions, 350 flow [2024-11-28 03:31:31,849 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:31:31,851 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;@7f3be307, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:31:31,852 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-28 03:31:31,877 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:31:31,878 INFO L124 PetriNetUnfolderBase]: 4/88 cut-off events. [2024-11-28 03:31:31,878 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-28 03:31:31,878 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:31:31,878 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:31:31,878 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-28 03:31:31,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:31,879 INFO L85 PathProgramCache]: Analyzing trace with hash -268071230, now seen corresponding path program 1 times [2024-11-28 03:31:31,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:31,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97908626] [2024-11-28 03:31:31,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:31,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:32,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:31:32,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:31:32,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97908626] [2024-11-28 03:31:32,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97908626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:31:32,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:31:32,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:31:32,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259139074] [2024-11-28 03:31:32,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:31:32,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:31:32,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:31:32,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:31:32,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:31:32,308 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 161 [2024-11-28 03:31:32,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 161 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:32,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:31:32,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 161 [2024-11-28 03:31:32,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand