./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-1_2-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_2-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU --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 fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:15:17,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:15:17,706 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:15:17,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:15:17,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:15:17,746 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:15:17,747 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:15:17,747 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:15:17,747 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:15:17,749 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:15:17,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:15:17,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:15:17,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:15:17,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:15:17,754 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:15:17,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:15:17,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:15:17,755 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:15:17,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:15:17,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:15:17,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:15:17,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:15:17,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:15:17,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:15:17,761 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:15:17,761 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:15:17,761 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:15:17,761 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:15:17,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:15:17,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:15:17,762 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:15:17,762 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:15:17,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:17,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:15:17,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:15:17,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:15:17,763 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:15:17,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:15:17,765 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:15:17,766 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:15:17,766 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:15:17,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:15:17,766 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f [2024-10-31 22:15:18,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:15:18,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:15:18,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:15:18,056 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:15:18,056 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:15:18,058 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/ldv-races/race-1_2-join.i Unable to find full path for "g++" [2024-10-31 22:15:20,088 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:15:20,481 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:15:20,484 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/sv-benchmarks/c/ldv-races/race-1_2-join.i [2024-10-31 22:15:20,513 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU/data/1d2346065/933227d394f14841bcff485149f46d73/FLAG4c99e6a26 [2024-10-31 22:15:20,662 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU/data/1d2346065/933227d394f14841bcff485149f46d73 [2024-10-31 22:15:20,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:15:20,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:15:20,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:20,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:15:20,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:15:20,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:20" (1/1) ... [2024-10-31 22:15:20,681 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b308e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:20, skipping insertion in model container [2024-10-31 22:15:20,681 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:20" (1/1) ... [2024-10-31 22:15:20,761 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:15:21,599 WARN L251 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_b84423b8-54a5-451e-a437-5454ab4803a8/sv-benchmarks/c/ldv-races/race-1_2-join.i[76153,76166] [2024-10-31 22:15:21,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:21,667 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:15:21,734 WARN L251 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_b84423b8-54a5-451e-a437-5454ab4803a8/sv-benchmarks/c/ldv-races/race-1_2-join.i[76153,76166] [2024-10-31 22:15:21,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:21,956 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:15:21,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:21 WrapperNode [2024-10-31 22:15:21,959 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:21,960 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:21,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:15:21,962 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:15:21,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:21" (1/1) ... [2024-10-31 22:15:22,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:21" (1/1) ... [2024-10-31 22:15:22,049 INFO L138 Inliner]: procedures = 483, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 85 [2024-10-31 22:15:22,050 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:22,051 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:15:22,052 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:15:22,052 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:15:22,063 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:21" (1/1) ... [2024-10-31 22:15:22,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:21" (1/1) ... [2024-10-31 22:15:22,070 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:21" (1/1) ... [2024-10-31 22:15:22,096 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 5, 1]. 63 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-10-31 22:15:22,097 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:21" (1/1) ... [2024-10-31 22:15:22,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:21" (1/1) ... [2024-10-31 22:15:22,118 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:21" (1/1) ... [2024-10-31 22:15:22,120 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:21" (1/1) ... [2024-10-31 22:15:22,128 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:21" (1/1) ... [2024-10-31 22:15:22,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:21" (1/1) ... [2024-10-31 22:15:22,137 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:15:22,141 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:15:22,141 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:15:22,141 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:15:22,142 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:21" (1/1) ... [2024-10-31 22:15:22,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:22,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:22,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:15:22,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:15:22,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:15:22,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:15:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:15:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:15:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:15:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:15:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:15:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:15:22,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:15:22,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:15:22,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:15:22,229 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:15:22,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:15:22,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:15:22,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:15:22,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:15:22,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:15:22,231 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:15:22,535 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:15:22,537 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:15:22,753 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:15:22,754 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:15:22,887 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:15:22,887 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:15:22,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:22 BoogieIcfgContainer [2024-10-31 22:15:22,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:15:22,890 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:15:22,890 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:15:22,894 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:15:22,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:15:20" (1/3) ... [2024-10-31 22:15:22,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1010176c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:22, skipping insertion in model container [2024-10-31 22:15:22,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:21" (2/3) ... [2024-10-31 22:15:22,896 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1010176c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:22, skipping insertion in model container [2024-10-31 22:15:22,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:22" (3/3) ... [2024-10-31 22:15:22,898 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2024-10-31 22:15:22,919 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:15:22,920 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-31 22:15:22,920 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:15:22,994 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:15:23,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 37 transitions, 81 flow [2024-10-31 22:15:23,096 INFO L124 PetriNetUnfolderBase]: 4/40 cut-off events. [2024-10-31 22:15:23,099 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:15:23,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 4/40 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 17. Up to 3 conditions per place. [2024-10-31 22:15:23,106 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 37 transitions, 81 flow [2024-10-31 22:15:23,110 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 28 transitions, 62 flow [2024-10-31 22:15:23,119 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:15:23,125 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;@47268446, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:15:23,126 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-31 22:15:23,129 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:15:23,129 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-10-31 22:15:23,129 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:15:23,129 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:23,130 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-31 22:15:23,131 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:15:23,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:23,139 INFO L85 PathProgramCache]: Analyzing trace with hash 275133, now seen corresponding path program 1 times [2024-10-31 22:15:23,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:23,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883095509] [2024-10-31 22:15:23,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:23,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:23,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:23,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:23,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883095509] [2024-10-31 22:15:23,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883095509] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:23,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:23,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:23,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002086237] [2024-10-31 22:15:23,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:23,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:23,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:23,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:23,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:23,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 37 [2024-10-31 22:15:23,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 28 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-10-31 22:15:23,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:23,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 37 [2024-10-31 22:15:23,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:23,863 INFO L124 PetriNetUnfolderBase]: 15/55 cut-off events. [2024-10-31 22:15:23,863 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:15:23,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 55 events. 15/55 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 146 event pairs, 15 based on Foata normal form. 2/50 useless extension candidates. Maximal degree in co-relation 85. Up to 43 conditions per place. [2024-10-31 22:15:23,865 INFO L140 encePairwiseOnDemand]: 30/37 looper letters, 8 selfloop transitions, 2 changer transitions 7/21 dead transitions. [2024-10-31 22:15:23,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 21 transitions, 80 flow [2024-10-31 22:15:23,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:23,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:23,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 46 transitions. [2024-10-31 22:15:23,883 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4144144144144144 [2024-10-31 22:15:23,885 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 62 flow. Second operand 3 states and 46 transitions. [2024-10-31 22:15:23,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 21 transitions, 80 flow [2024-10-31 22:15:23,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 21 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:23,893 INFO L231 Difference]: Finished difference. Result has 25 places, 14 transitions, 33 flow [2024-10-31 22:15:23,895 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=25, PETRI_TRANSITIONS=14} [2024-10-31 22:15:23,899 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -6 predicate places. [2024-10-31 22:15:23,901 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 14 transitions, 33 flow [2024-10-31 22:15:23,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-10-31 22:15:23,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:23,902 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:23,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:15:23,903 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:15:23,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:23,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1756354669, now seen corresponding path program 1 times [2024-10-31 22:15:23,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:23,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261563153] [2024-10-31 22:15:23,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:23,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:24,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:24,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:24,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261563153] [2024-10-31 22:15:24,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261563153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:24,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:24,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:24,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415122496] [2024-10-31 22:15:24,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:24,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:24,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:24,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:24,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:24,170 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-10-31 22:15:24,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 14 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-10-31 22:15:24,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:24,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-10-31 22:15:24,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:24,216 INFO L124 PetriNetUnfolderBase]: 9/36 cut-off events. [2024-10-31 22:15:24,216 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:15:24,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 36 events. 9/36 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs, 6 based on Foata normal form. 5/39 useless extension candidates. Maximal degree in co-relation 65. Up to 26 conditions per place. [2024-10-31 22:15:24,217 INFO L140 encePairwiseOnDemand]: 34/37 looper letters, 10 selfloop transitions, 2 changer transitions 3/18 dead transitions. [2024-10-31 22:15:24,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 18 transitions, 71 flow [2024-10-31 22:15:24,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:24,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:24,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2024-10-31 22:15:24,219 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4954954954954955 [2024-10-31 22:15:24,219 INFO L175 Difference]: Start difference. First operand has 25 places, 14 transitions, 33 flow. Second operand 3 states and 55 transitions. [2024-10-31 22:15:24,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 18 transitions, 71 flow [2024-10-31 22:15:24,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 18 transitions, 67 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:24,221 INFO L231 Difference]: Finished difference. Result has 19 places, 14 transitions, 37 flow [2024-10-31 22:15:24,221 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=37, PETRI_PLACES=19, PETRI_TRANSITIONS=14} [2024-10-31 22:15:24,222 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -12 predicate places. [2024-10-31 22:15:24,222 INFO L471 AbstractCegarLoop]: Abstraction has has 19 places, 14 transitions, 37 flow [2024-10-31 22:15:24,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-10-31 22:15:24,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:24,223 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:24,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:15:24,223 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:15:24,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:24,224 INFO L85 PathProgramCache]: Analyzing trace with hash 474236761, now seen corresponding path program 1 times [2024-10-31 22:15:24,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:24,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378756884] [2024-10-31 22:15:24,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:24,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:15:24,269 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:15:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:15:24,320 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:15:24,321 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:15:24,323 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-10-31 22:15:24,327 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-10-31 22:15:24,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-10-31 22:15:24,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-10-31 22:15:24,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-31 22:15:24,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:15:24,329 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-31 22:15:24,361 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:15:24,361 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:15:24,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:15:24 BasicIcfg [2024-10-31 22:15:24,372 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:15:24,373 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:15:24,373 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:15:24,373 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:15:24,374 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:22" (3/4) ... [2024-10-31 22:15:24,375 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-31 22:15:24,442 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:15:24,442 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:15:24,443 INFO L158 Benchmark]: Toolchain (without parser) took 3776.97ms. Allocated memory is still 163.6MB. Free memory was 131.4MB in the beginning and 71.6MB in the end (delta: 59.8MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. [2024-10-31 22:15:24,443 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:15:24,444 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1291.65ms. Allocated memory is still 163.6MB. Free memory was 131.4MB in the beginning and 128.8MB in the end (delta: 2.6MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2024-10-31 22:15:24,444 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.06ms. Allocated memory is still 163.6MB. Free memory was 128.8MB in the beginning and 125.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:15:24,445 INFO L158 Benchmark]: Boogie Preprocessor took 88.66ms. Allocated memory is still 163.6MB. Free memory was 125.7MB in the beginning and 122.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:15:24,445 INFO L158 Benchmark]: RCFGBuilder took 747.69ms. Allocated memory is still 163.6MB. Free memory was 122.7MB in the beginning and 92.1MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-10-31 22:15:24,446 INFO L158 Benchmark]: TraceAbstraction took 1481.86ms. Allocated memory is still 163.6MB. Free memory was 91.3MB in the beginning and 73.7MB in the end (delta: 17.6MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2024-10-31 22:15:24,446 INFO L158 Benchmark]: Witness Printer took 69.73ms. Allocated memory is still 163.6MB. Free memory was 73.7MB in the beginning and 71.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:15:24,448 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1291.65ms. Allocated memory is still 163.6MB. Free memory was 131.4MB in the beginning and 128.8MB in the end (delta: 2.6MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.06ms. Allocated memory is still 163.6MB. Free memory was 128.8MB in the beginning and 125.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.66ms. Allocated memory is still 163.6MB. Free memory was 125.7MB in the beginning and 122.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 747.69ms. Allocated memory is still 163.6MB. Free memory was 122.7MB in the beginning and 92.1MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1481.86ms. Allocated memory is still 163.6MB. Free memory was 91.3MB in the beginning and 73.7MB in the end (delta: 17.6MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Witness Printer took 69.73ms. Allocated memory is still 163.6MB. Free memory was 73.7MB in the beginning and 71.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={3:0}, pdev=1, t1=0] [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [\old(arg)={0:0}, mutex={3:0}, pdev=1, t1=0] [L1714] 0 pdev = 2 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=2, t1=0] [L1702] 1 pdev = 6 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=0] [L1717] CALL 0 ldv_assert(pdev==2) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(arg)={0:0}, \old(expression)=0, arg={0:0}, expression=0, mutex={3:0}, pdev=6, t1=0] - UnprovableResult [Line: 1695]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 41 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 7 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-31 22:15:24,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84423b8-54a5-451e-a437-5454ab4803a8/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE