./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/lazy01.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_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/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_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/lazy01.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/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_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/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 b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:05:21,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:05:21,219 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:05:21,226 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:05:21,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:05:21,252 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:05:21,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:05:21,253 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:05:21,254 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:05:21,254 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:05:21,255 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:05:21,255 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:05:21,256 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:05:21,256 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:05:21,256 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:05:21,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:05:21,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:05:21,257 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:05:21,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:05:21,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:05:21,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:05:21,263 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:05:21,263 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:05:21,264 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:05:21,264 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:05:21,264 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:05:21,264 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:05:21,265 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:05:21,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:05:21,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:05:21,266 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:05:21,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:05:21,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:21,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:05:21,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:05:21,268 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:05:21,269 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:05:21,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:05:21,269 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:05:21,269 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:05:21,270 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:05:21,272 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:05:21,272 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_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 [2024-10-31 22:05:21,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:05:21,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:05:21,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:05:21,623 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:05:21,624 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:05:21,625 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread/lazy01.i Unable to find full path for "g++" [2024-10-31 22:05:23,863 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:05:24,172 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:05:24,173 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/sv-benchmarks/c/pthread/lazy01.i [2024-10-31 22:05:24,189 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/bin/uautomizer-verify-4GaUIPS5ZU/data/aaac9b210/33f0f685ddaa449381a7bcf52e296d1d/FLAG5305ec9d1 [2024-10-31 22:05:24,204 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/bin/uautomizer-verify-4GaUIPS5ZU/data/aaac9b210/33f0f685ddaa449381a7bcf52e296d1d [2024-10-31 22:05:24,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:05:24,208 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:05:24,210 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:24,210 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:05:24,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:05:24,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:24" (1/1) ... [2024-10-31 22:05:24,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ee7e3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:24, skipping insertion in model container [2024-10-31 22:05:24,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:24" (1/1) ... [2024-10-31 22:05:24,274 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:05:24,701 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_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/sv-benchmarks/c/pthread/lazy01.i[31042,31055] [2024-10-31 22:05:24,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:24,739 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:05:24,790 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_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/sv-benchmarks/c/pthread/lazy01.i[31042,31055] [2024-10-31 22:05:24,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:24,844 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:05:24,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:24 WrapperNode [2024-10-31 22:05:24,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:24,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:24,848 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:05:24,848 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:05:24,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:24" (1/1) ... [2024-10-31 22:05:24,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:24" (1/1) ... [2024-10-31 22:05:24,887 INFO L138 Inliner]: procedures = 169, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2024-10-31 22:05:24,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:24,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:05:24,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:05:24,889 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:05:24,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:24" (1/1) ... [2024-10-31 22:05:24,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:24" (1/1) ... [2024-10-31 22:05:24,904 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:24" (1/1) ... [2024-10-31 22:05:24,918 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]. [2024-10-31 22:05:24,918 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:24" (1/1) ... [2024-10-31 22:05:24,918 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:24" (1/1) ... [2024-10-31 22:05:24,923 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:24" (1/1) ... [2024-10-31 22:05:24,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:24" (1/1) ... [2024-10-31 22:05:24,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:24" (1/1) ... [2024-10-31 22:05:24,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:24" (1/1) ... [2024-10-31 22:05:24,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:05:24,935 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:05:24,936 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:05:24,936 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:05:24,937 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:24" (1/1) ... [2024-10-31 22:05:24,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:24,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:24,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:05:24,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:05:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:05:25,017 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:05:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:05:25,018 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:05:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:05:25,018 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:05:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:05:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:05:25,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:05:25,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:05:25,019 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:05:25,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:05:25,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:05:25,021 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 22:05:25,169 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:05:25,171 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:05:25,322 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:05:25,322 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:05:25,476 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:05:25,476 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:05:25,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:25 BoogieIcfgContainer [2024-10-31 22:05:25,491 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:05:25,494 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:05:25,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:05:25,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:05:25,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:05:24" (1/3) ... [2024-10-31 22:05:25,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538e336b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:25, skipping insertion in model container [2024-10-31 22:05:25,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:24" (2/3) ... [2024-10-31 22:05:25,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538e336b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:25, skipping insertion in model container [2024-10-31 22:05:25,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:25" (3/3) ... [2024-10-31 22:05:25,503 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2024-10-31 22:05:25,525 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:05:25,525 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:05:25,525 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:05:25,609 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:05:25,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 33 transitions, 87 flow [2024-10-31 22:05:25,693 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events. [2024-10-31 22:05:25,693 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:05:25,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 30 events. 1/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2024-10-31 22:05:25,697 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 33 transitions, 87 flow [2024-10-31 22:05:25,701 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 24 transitions, 63 flow [2024-10-31 22:05:25,712 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:05:25,719 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;@539edfe3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:05:25,719 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-31 22:05:25,731 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:05:25,732 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2024-10-31 22:05:25,732 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:05:25,732 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:25,733 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:25,734 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:05:25,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:25,743 INFO L85 PathProgramCache]: Analyzing trace with hash -899724581, now seen corresponding path program 1 times [2024-10-31 22:05:25,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:25,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468244050] [2024-10-31 22:05:25,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:25,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:26,118 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 22:05:26,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:26,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468244050] [2024-10-31 22:05:26,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468244050] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:26,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:26,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:26,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41141399] [2024-10-31 22:05:26,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:26,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:26,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:26,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:26,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:26,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2024-10-31 22:05:26,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 22:05:26,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:26,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2024-10-31 22:05:26,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:26,450 INFO L124 PetriNetUnfolderBase]: 358/632 cut-off events. [2024-10-31 22:05:26,450 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2024-10-31 22:05:26,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1296 conditions, 632 events. 358/632 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2910 event pairs, 124 based on Foata normal form. 4/629 useless extension candidates. Maximal degree in co-relation 1183. Up to 524 conditions per place. [2024-10-31 22:05:26,468 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 26 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2024-10-31 22:05:26,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 34 transitions, 147 flow [2024-10-31 22:05:26,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:26,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:26,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2024-10-31 22:05:26,485 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-10-31 22:05:26,487 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 63 flow. Second operand 3 states and 57 transitions. [2024-10-31 22:05:26,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 34 transitions, 147 flow [2024-10-31 22:05:26,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 34 transitions, 135 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:05:26,499 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 73 flow [2024-10-31 22:05:26,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2024-10-31 22:05:26,507 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, -2 predicate places. [2024-10-31 22:05:26,507 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 73 flow [2024-10-31 22:05:26,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 22:05:26,508 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:26,508 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:26,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:05:26,509 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:05:26,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:26,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1825340897, now seen corresponding path program 1 times [2024-10-31 22:05:26,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:26,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972402428] [2024-10-31 22:05:26,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:26,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:26,784 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 22:05:26,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:26,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972402428] [2024-10-31 22:05:26,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972402428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:26,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:26,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:05:26,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243490270] [2024-10-31 22:05:26,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:26,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:26,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:26,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:26,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:26,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-10-31 22:05:26,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 22:05:26,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:26,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-10-31 22:05:26,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:26,960 INFO L124 PetriNetUnfolderBase]: 130/322 cut-off events. [2024-10-31 22:05:26,960 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 22:05:26,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 685 conditions, 322 events. 130/322 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1395 event pairs, 38 based on Foata normal form. 55/372 useless extension candidates. Maximal degree in co-relation 372. Up to 160 conditions per place. [2024-10-31 22:05:26,964 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 24 selfloop transitions, 5 changer transitions 0/35 dead transitions. [2024-10-31 22:05:26,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 35 transitions, 154 flow [2024-10-31 22:05:26,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:26,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:26,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-10-31 22:05:26,966 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-10-31 22:05:26,966 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 73 flow. Second operand 3 states and 60 transitions. [2024-10-31 22:05:26,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 35 transitions, 154 flow [2024-10-31 22:05:26,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 35 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:26,969 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 80 flow [2024-10-31 22:05:26,969 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2024-10-31 22:05:26,970 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, -1 predicate places. [2024-10-31 22:05:26,970 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 80 flow [2024-10-31 22:05:26,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 22:05:26,971 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:26,971 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:26,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:05:26,971 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:05:26,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:26,972 INFO L85 PathProgramCache]: Analyzing trace with hash -860003751, now seen corresponding path program 1 times [2024-10-31 22:05:26,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:26,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656264774] [2024-10-31 22:05:26,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:26,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:27,065 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 22:05:27,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:27,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656264774] [2024-10-31 22:05:27,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656264774] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:27,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:27,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:05:27,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076006450] [2024-10-31 22:05:27,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:27,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:05:27,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:27,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:05:27,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:05:27,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2024-10-31 22:05:27,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 22:05:27,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:27,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2024-10-31 22:05:27,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:27,218 INFO L124 PetriNetUnfolderBase]: 150/327 cut-off events. [2024-10-31 22:05:27,218 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-10-31 22:05:27,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 327 events. 150/327 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1308 event pairs, 41 based on Foata normal form. 5/330 useless extension candidates. Maximal degree in co-relation 304. Up to 197 conditions per place. [2024-10-31 22:05:27,223 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 30 selfloop transitions, 4 changer transitions 2/41 dead transitions. [2024-10-31 22:05:27,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 41 transitions, 198 flow [2024-10-31 22:05:27,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:05:27,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:05:27,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2024-10-31 22:05:27,226 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.553030303030303 [2024-10-31 22:05:27,226 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 80 flow. Second operand 4 states and 73 transitions. [2024-10-31 22:05:27,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 41 transitions, 198 flow [2024-10-31 22:05:27,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 188 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:27,229 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 87 flow [2024-10-31 22:05:27,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=87, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2024-10-31 22:05:27,232 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 2 predicate places. [2024-10-31 22:05:27,232 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 87 flow [2024-10-31 22:05:27,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 22:05:27,233 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:27,233 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:27,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:05:27,234 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:05:27,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:27,237 INFO L85 PathProgramCache]: Analyzing trace with hash 26852633, now seen corresponding path program 1 times [2024-10-31 22:05:27,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:27,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189142940] [2024-10-31 22:05:27,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:27,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:27,314 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 22:05:27,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:27,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189142940] [2024-10-31 22:05:27,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189142940] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:27,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:27,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:05:27,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401405009] [2024-10-31 22:05:27,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:27,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:05:27,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:27,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:05:27,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:05:27,322 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-10-31 22:05:27,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 22:05:27,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:27,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-10-31 22:05:27,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:27,452 INFO L124 PetriNetUnfolderBase]: 146/315 cut-off events. [2024-10-31 22:05:27,452 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2024-10-31 22:05:27,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 755 conditions, 315 events. 146/315 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1240 event pairs, 35 based on Foata normal form. 4/317 useless extension candidates. Maximal degree in co-relation 306. Up to 142 conditions per place. [2024-10-31 22:05:27,455 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 31 selfloop transitions, 5 changer transitions 2/43 dead transitions. [2024-10-31 22:05:27,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 209 flow [2024-10-31 22:05:27,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:05:27,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:05:27,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2024-10-31 22:05:27,457 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5378787878787878 [2024-10-31 22:05:27,457 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 87 flow. Second operand 4 states and 71 transitions. [2024-10-31 22:05:27,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 209 flow [2024-10-31 22:05:27,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 201 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-31 22:05:27,462 INFO L231 Difference]: Finished difference. Result has 38 places, 26 transitions, 95 flow [2024-10-31 22:05:27,462 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=95, PETRI_PLACES=38, PETRI_TRANSITIONS=26} [2024-10-31 22:05:27,464 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 4 predicate places. [2024-10-31 22:05:27,465 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 26 transitions, 95 flow [2024-10-31 22:05:27,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 22:05:27,465 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:27,465 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:27,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:05:27,467 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:05:27,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:27,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1977155689, now seen corresponding path program 1 times [2024-10-31 22:05:27,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:27,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769615260] [2024-10-31 22:05:27,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:27,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:05:27,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:05:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:05:27,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:05:27,542 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:05:27,544 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thread3Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-10-31 22:05:27,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-10-31 22:05:27,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-31 22:05:27,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-31 22:05:27,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-31 22:05:27,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:05:27,548 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-31 22:05:27,593 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:05:27,593 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:05:27,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:05:27 BasicIcfg [2024-10-31 22:05:27,602 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:05:27,604 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:05:27,604 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:05:27,604 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:05:27,605 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:25" (3/4) ... [2024-10-31 22:05:27,607 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-31 22:05:27,675 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:05:27,675 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:05:27,676 INFO L158 Benchmark]: Toolchain (without parser) took 3467.66ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 121.0MB in the beginning and 64.9MB in the end (delta: 56.1MB). Peak memory consumption was 87.2MB. Max. memory is 16.1GB. [2024-10-31 22:05:27,677 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 111.1MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:05:27,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 636.19ms. Allocated memory is still 153.1MB. Free memory was 121.0MB in the beginning and 98.9MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-31 22:05:27,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.56ms. Allocated memory is still 153.1MB. Free memory was 98.6MB in the beginning and 96.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:05:27,679 INFO L158 Benchmark]: Boogie Preprocessor took 46.11ms. Allocated memory is still 153.1MB. Free memory was 96.9MB in the beginning and 94.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:05:27,680 INFO L158 Benchmark]: RCFGBuilder took 556.00ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 94.7MB in the beginning and 154.1MB in the end (delta: -59.4MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2024-10-31 22:05:27,683 INFO L158 Benchmark]: TraceAbstraction took 2108.05ms. Allocated memory is still 184.5MB. Free memory was 154.1MB in the beginning and 69.1MB in the end (delta: 85.0MB). Peak memory consumption was 82.8MB. Max. memory is 16.1GB. [2024-10-31 22:05:27,683 INFO L158 Benchmark]: Witness Printer took 71.19ms. Allocated memory is still 184.5MB. Free memory was 69.1MB in the beginning and 64.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:05:27,685 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 111.1MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 636.19ms. Allocated memory is still 153.1MB. Free memory was 121.0MB in the beginning and 98.9MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.56ms. Allocated memory is still 153.1MB. Free memory was 98.6MB in the beginning and 96.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.11ms. Allocated memory is still 153.1MB. Free memory was 96.9MB in the beginning and 94.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 556.00ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 94.7MB in the beginning and 154.1MB in the end (delta: -59.4MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2108.05ms. Allocated memory is still 184.5MB. Free memory was 154.1MB in the beginning and 69.1MB in the end (delta: 85.0MB). Peak memory consumption was 82.8MB. Max. memory is 16.1GB. * Witness Printer took 71.19ms. Allocated memory is still 184.5MB. Free memory was 69.1MB in the beginning and 64.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L703] 0 int data = 0; [L731] 0 pthread_t t1, t2, t3; [L732] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [\old(arg)={0:0}, data=0, mutex={3:0}, t1=-3] [L733] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data=0, mutex={3:0}, t1=-3, t2=-2] [L734] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data=0, mutex={3:0}, t1=-3, t2=-2, t3=-1] [L707] 1 data++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data=1, mutex={3:0}] [L714] 2 data+=2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L721] COND TRUE 3 data >= 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L722] 3 reach_error() VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] - UnprovableResult [Line: 732]: 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. - UnprovableResult [Line: 733]: 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. - UnprovableResult [Line: 734]: 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 7 procedures, 57 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: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 3 mSDtfsCounter, 176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=4, InterpolantAutomatonStates: 14, 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, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 157 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 22:05:27,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015f68e5-5aa8-49e7-ba77-ba0cb6b2a6f0/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