./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 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd9e355-57d0-4164-8484-5c2b5614b99c/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd9e355-57d0-4164-8484-5c2b5614b99c/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_bcd9e355-57d0-4164-8484-5c2b5614b99c/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd9e355-57d0-4164-8484-5c2b5614b99c/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/03_incdec.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd9e355-57d0-4164-8484-5c2b5614b99c/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_bcd9e355-57d0-4164-8484-5c2b5614b99c/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 c7242322569cf2f27ee72f2a65e0d58ced23407c575f0c8898b19424239a034d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:06:18,647 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:06:18,739 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd9e355-57d0-4164-8484-5c2b5614b99c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:06:18,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:06:18,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:06:18,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:06:18,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:06:18,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:06:18,777 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:06:18,777 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:06:18,777 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:06:18,777 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:06:18,777 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:06:18,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:06:18,778 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:06:18,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:06:18,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:06:18,778 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:06:18,778 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:06:18,779 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:06:18,779 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:06:18,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:06:18,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:06:18,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:06:18,779 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:06:18,780 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:06:18,780 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:06:18,780 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:06:18,780 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:06:18,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:06:18,784 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:06:18,784 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:06:18,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:06:18,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:06:18,785 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:06:18,785 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:06:18,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:06:18,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:06:18,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:06:18,785 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:06:18,786 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:06:18,786 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:06:18,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:06:18,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:06:18,786 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:06:18,787 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:06:18,787 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:06:18,787 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:06:18,787 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_bcd9e355-57d0-4164-8484-5c2b5614b99c/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 -> c7242322569cf2f27ee72f2a65e0d58ced23407c575f0c8898b19424239a034d [2024-11-24 00:06:19,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:06:19,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:06:19,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:06:19,170 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:06:19,170 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:06:19,172 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd9e355-57d0-4164-8484-5c2b5614b99c/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/pthread-ext/03_incdec.i [2024-11-24 00:06:22,394 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd9e355-57d0-4164-8484-5c2b5614b99c/bin/uautomizer-verify-LYvppIcaGC/data/dd1185dac/067e7420fcce4c62a477a2540e2d399c/FLAGb38d7eaa3 [2024-11-24 00:06:22,720 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:06:22,720 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd9e355-57d0-4164-8484-5c2b5614b99c/sv-benchmarks/c/pthread-ext/03_incdec.i [2024-11-24 00:06:22,735 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd9e355-57d0-4164-8484-5c2b5614b99c/bin/uautomizer-verify-LYvppIcaGC/data/dd1185dac/067e7420fcce4c62a477a2540e2d399c/FLAGb38d7eaa3 [2024-11-24 00:06:22,979 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd9e355-57d0-4164-8484-5c2b5614b99c/bin/uautomizer-verify-LYvppIcaGC/data/dd1185dac/067e7420fcce4c62a477a2540e2d399c [2024-11-24 00:06:22,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:06:22,982 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:06:22,983 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:06:22,983 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:06:22,989 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:06:22,990 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:06:22" (1/1) ... [2024-11-24 00:06:22,991 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dbb9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:22, skipping insertion in model container [2024-11-24 00:06:22,991 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:06:22" (1/1) ... [2024-11-24 00:06:23,026 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:06:23,372 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_bcd9e355-57d0-4164-8484-5c2b5614b99c/sv-benchmarks/c/pthread-ext/03_incdec.i[30737,30750] [2024-11-24 00:06:23,380 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_bcd9e355-57d0-4164-8484-5c2b5614b99c/sv-benchmarks/c/pthread-ext/03_incdec.i[31112,31125] [2024-11-24 00:06:23,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:06:23,406 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:06:23,453 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_bcd9e355-57d0-4164-8484-5c2b5614b99c/sv-benchmarks/c/pthread-ext/03_incdec.i[30737,30750] [2024-11-24 00:06:23,456 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_bcd9e355-57d0-4164-8484-5c2b5614b99c/sv-benchmarks/c/pthread-ext/03_incdec.i[31112,31125] [2024-11-24 00:06:23,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:06:23,501 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:06:23,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:23 WrapperNode [2024-11-24 00:06:23,502 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:06:23,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:06:23,504 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:06:23,504 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:06:23,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:23" (1/1) ... [2024-11-24 00:06:23,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:23" (1/1) ... [2024-11-24 00:06:23,540 INFO L138 Inliner]: procedures = 164, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2024-11-24 00:06:23,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:06:23,541 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:06:23,541 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:06:23,541 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:06:23,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:23" (1/1) ... [2024-11-24 00:06:23,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:23" (1/1) ... [2024-11-24 00:06:23,555 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:23" (1/1) ... [2024-11-24 00:06:23,568 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]. [2024-11-24 00:06:23,568 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:23" (1/1) ... [2024-11-24 00:06:23,568 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:23" (1/1) ... [2024-11-24 00:06:23,578 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:23" (1/1) ... [2024-11-24 00:06:23,579 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:23" (1/1) ... [2024-11-24 00:06:23,583 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:23" (1/1) ... [2024-11-24 00:06:23,585 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:23" (1/1) ... [2024-11-24 00:06:23,586 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:23" (1/1) ... [2024-11-24 00:06:23,588 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:06:23,589 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:06:23,589 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:06:23,589 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:06:23,590 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:23" (1/1) ... [2024-11-24 00:06:23,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:06:23,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd9e355-57d0-4164-8484-5c2b5614b99c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:06:23,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd9e355-57d0-4164-8484-5c2b5614b99c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:06:23,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd9e355-57d0-4164-8484-5c2b5614b99c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:06:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-24 00:06:23,672 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-24 00:06:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 00:06:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:06:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:06:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:06:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 00:06:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:06:23,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:06:23,674 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 00:06:23,861 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:06:23,864 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:06:24,192 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 00:06:24,192 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:06:24,334 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:06:24,338 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:06:24,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:06:24 BoogieIcfgContainer [2024-11-24 00:06:24,339 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:06:24,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:06:24,346 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:06:24,352 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:06:24,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:06:22" (1/3) ... [2024-11-24 00:06:24,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3829c37e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:06:24, skipping insertion in model container [2024-11-24 00:06:24,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:23" (2/3) ... [2024-11-24 00:06:24,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3829c37e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:06:24, skipping insertion in model container [2024-11-24 00:06:24,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:06:24" (3/3) ... [2024-11-24 00:06:24,356 INFO L128 eAbstractionObserver]: Analyzing ICFG 03_incdec.i [2024-11-24 00:06:24,376 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:06:24,377 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. [2024-11-24 00:06:24,378 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 00:06:24,464 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:06:24,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 44 transitions, 92 flow [2024-11-24 00:06:24,595 INFO L124 PetriNetUnfolderBase]: 5/46 cut-off events. [2024-11-24 00:06:24,600 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:06:24,604 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. [2024-11-24 00:06:24,604 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 44 transitions, 92 flow [2024-11-24 00:06:24,609 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 44 transitions, 92 flow [2024-11-24 00:06:24,626 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:06:24,653 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;@3018d21a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:06:24,653 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-24 00:06:24,666 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:06:24,666 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-11-24 00:06:24,666 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:06:24,666 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:06:24,668 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-24 00:06:24,668 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)] === [2024-11-24 00:06:24,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:24,677 INFO L85 PathProgramCache]: Analyzing trace with hash -160051778, now seen corresponding path program 1 times [2024-11-24 00:06:24,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:24,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928427807] [2024-11-24 00:06:24,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:24,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:06:24,821 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:06:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:06:24,869 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:06:24,871 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:06:24,873 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-24 00:06:24,877 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-24 00:06:24,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-11-24 00:06:24,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-11-24 00:06:24,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-24 00:06:24,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:06:24,880 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-24 00:06:24,884 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:06:24,884 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-24 00:06:24,972 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:06:24,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 83 transitions, 176 flow [2024-11-24 00:06:25,004 INFO L124 PetriNetUnfolderBase]: 10/88 cut-off events. [2024-11-24 00:06:25,004 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-24 00:06:25,007 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. [2024-11-24 00:06:25,007 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 83 transitions, 176 flow [2024-11-24 00:06:25,009 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 83 transitions, 176 flow [2024-11-24 00:06:25,010 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:06:25,011 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;@3018d21a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:06:25,011 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-24 00:06:25,023 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:06:25,023 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-11-24 00:06:25,023 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-24 00:06:25,023 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:06:25,024 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-11-24 00:06:25,024 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)] === [2024-11-24 00:06:25,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:25,024 INFO L85 PathProgramCache]: Analyzing trace with hash 711317606, now seen corresponding path program 1 times [2024-11-24 00:06:25,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:25,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395110455] [2024-11-24 00:06:25,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:25,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:06:25,050 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:06:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:06:25,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:06:25,071 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:06:25,071 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-24 00:06:25,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-11-24 00:06:25,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2024-11-24 00:06:25,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2024-11-24 00:06:25,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2024-11-24 00:06:25,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-11-24 00:06:25,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-11-24 00:06:25,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:06:25,072 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-24 00:06:25,073 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:06:25,073 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-24 00:06:25,136 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:06:25,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 122 transitions, 262 flow [2024-11-24 00:06:25,214 INFO L124 PetriNetUnfolderBase]: 15/130 cut-off events. [2024-11-24 00:06:25,215 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-24 00:06:25,219 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. [2024-11-24 00:06:25,219 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 122 transitions, 262 flow [2024-11-24 00:06:25,222 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 122 transitions, 262 flow [2024-11-24 00:06:25,226 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:06:25,227 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;@3018d21a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:06:25,227 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-24 00:06:25,253 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:06:25,253 INFO L124 PetriNetUnfolderBase]: 1/52 cut-off events. [2024-11-24 00:06:25,253 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-24 00:06:25,253 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:06:25,253 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2024-11-24 00:06:25,254 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)] === [2024-11-24 00:06:25,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:25,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1081016957, now seen corresponding path program 1 times [2024-11-24 00:06:25,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:25,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749505767] [2024-11-24 00:06:25,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:25,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:06:25,282 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:06:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:06:25,304 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:06:25,304 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:06:25,305 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-24 00:06:25,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2024-11-24 00:06:25,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2024-11-24 00:06:25,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (5 of 9 remaining) [2024-11-24 00:06:25,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2024-11-24 00:06:25,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2024-11-24 00:06:25,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2024-11-24 00:06:25,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2024-11-24 00:06:25,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2024-11-24 00:06:25,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:06:25,307 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-24 00:06:25,307 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:06:25,308 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-24 00:06:25,380 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:06:25,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 161 transitions, 350 flow [2024-11-24 00:06:25,462 INFO L124 PetriNetUnfolderBase]: 20/172 cut-off events. [2024-11-24 00:06:25,463 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-24 00:06:25,465 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. [2024-11-24 00:06:25,466 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 161 transitions, 350 flow [2024-11-24 00:06:25,469 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 161 transitions, 350 flow [2024-11-24 00:06:25,470 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:06:25,471 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;@3018d21a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:06:25,471 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-24 00:06:25,503 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:06:25,504 INFO L124 PetriNetUnfolderBase]: 4/88 cut-off events. [2024-11-24 00:06:25,504 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-24 00:06:25,504 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:06:25,504 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:25,504 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-24 00:06:25,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:25,505 INFO L85 PathProgramCache]: Analyzing trace with hash -268071230, now seen corresponding path program 1 times [2024-11-24 00:06:25,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:25,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934813617] [2024-11-24 00:06:25,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:25,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:25,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:25,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:25,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934813617] [2024-11-24 00:06:25,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934813617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:25,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:25,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:06:25,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660351613] [2024-11-24 00:06:25,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:25,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:06:25,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:25,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:06:25,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:25,919 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 161 [2024-11-24 00:06:25,922 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) [2024-11-24 00:06:25,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:06:25,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 161 [2024-11-24 00:06:25,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand