./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.03.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.03.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 df9c08bfebceaab1f9a4876f800c54f716abbe7d42e2d145c7665d6e166a298e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:57:10,928 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:57:11,029 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:57:11,038 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:57:11,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:57:11,068 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:57:11,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:57:11,070 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:57:11,071 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:57:11,072 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:57:11,073 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:57:11,073 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:57:11,074 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:57:11,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:57:11,076 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:57:11,076 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:57:11,077 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:57:11,078 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:57:11,078 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:57:11,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:57:11,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:57:11,081 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:57:11,081 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:57:11,082 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:57:11,083 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:57:11,084 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:57:11,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:57:11,085 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:57:11,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:57:11,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:57:11,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:57:11,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:57:11,088 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:57:11,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:57:11,090 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:57:11,090 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:57:11,091 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:57:11,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:57:11,092 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:57:11,092 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_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df9c08bfebceaab1f9a4876f800c54f716abbe7d42e2d145c7665d6e166a298e [2023-11-06 22:57:11,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:57:11,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:57:11,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:57:11,387 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:57:11,387 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:57:11,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.03.cil-2.c [2023-11-06 22:57:14,466 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:57:14,760 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:57:14,760 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.03.cil-2.c [2023-11-06 22:57:14,775 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP/data/83779d547/e90d34d83318439181eba324fd94e10b/FLAGf40fde488 [2023-11-06 22:57:14,791 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP/data/83779d547/e90d34d83318439181eba324fd94e10b [2023-11-06 22:57:14,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:57:14,796 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:57:14,797 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:57:14,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:57:14,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:57:14,804 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:57:14" (1/1) ... [2023-11-06 22:57:14,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c0d53c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:14, skipping insertion in model container [2023-11-06 22:57:14,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:57:14" (1/1) ... [2023-11-06 22:57:14,858 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:57:15,025 WARN L240 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_e479a369-d70d-4369-ae98-aea090189371/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.03.cil-2.c[913,926] [2023-11-06 22:57:15,076 WARN L240 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_e479a369-d70d-4369-ae98-aea090189371/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.03.cil-2.c[5994,6007] [2023-11-06 22:57:15,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:57:15,147 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:57:15,162 WARN L240 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_e479a369-d70d-4369-ae98-aea090189371/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.03.cil-2.c[913,926] [2023-11-06 22:57:15,188 WARN L240 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_e479a369-d70d-4369-ae98-aea090189371/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.03.cil-2.c[5994,6007] [2023-11-06 22:57:15,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:57:15,260 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:57:15,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:15 WrapperNode [2023-11-06 22:57:15,260 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:57:15,262 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:57:15,262 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:57:15,262 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:57:15,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:15" (1/1) ... [2023-11-06 22:57:15,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:15" (1/1) ... [2023-11-06 22:57:15,332 INFO L138 Inliner]: procedures = 54, calls = 58, calls flagged for inlining = 29, calls inlined = 29, statements flattened = 546 [2023-11-06 22:57:15,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:57:15,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:57:15,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:57:15,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:57:15,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:15" (1/1) ... [2023-11-06 22:57:15,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:15" (1/1) ... [2023-11-06 22:57:15,349 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:15" (1/1) ... [2023-11-06 22:57:15,349 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:15" (1/1) ... [2023-11-06 22:57:15,360 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:15" (1/1) ... [2023-11-06 22:57:15,370 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:15" (1/1) ... [2023-11-06 22:57:15,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:15" (1/1) ... [2023-11-06 22:57:15,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:15" (1/1) ... [2023-11-06 22:57:15,382 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:57:15,383 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:57:15,383 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:57:15,384 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:57:15,384 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:15" (1/1) ... [2023-11-06 22:57:15,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:57:15,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:57:15,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:57:15,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:57:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:57:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-11-06 22:57:15,496 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-11-06 22:57:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2023-11-06 22:57:15,497 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2023-11-06 22:57:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-11-06 22:57:15,498 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-11-06 22:57:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-11-06 22:57:15,498 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-11-06 22:57:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-11-06 22:57:15,500 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-11-06 22:57:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-11-06 22:57:15,501 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-11-06 22:57:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-11-06 22:57:15,501 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-11-06 22:57:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:57:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-11-06 22:57:15,501 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-11-06 22:57:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:57:15,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:57:15,502 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-11-06 22:57:15,502 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-11-06 22:57:15,615 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:57:15,617 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:57:16,281 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:57:16,292 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:57:16,293 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-11-06 22:57:16,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:57:16 BoogieIcfgContainer [2023-11-06 22:57:16,296 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:57:16,299 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:57:16,299 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:57:16,303 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:57:16,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:57:14" (1/3) ... [2023-11-06 22:57:16,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b4c95b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:57:16, skipping insertion in model container [2023-11-06 22:57:16,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:15" (2/3) ... [2023-11-06 22:57:16,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b4c95b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:57:16, skipping insertion in model container [2023-11-06 22:57:16,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:57:16" (3/3) ... [2023-11-06 22:57:16,307 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-1+token_ring.03.cil-2.c [2023-11-06 22:57:16,329 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:57:16,329 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-06 22:57:16,426 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:57:16,435 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@333bb3d7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:57:16,436 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-06 22:57:16,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 234 states, 198 states have (on average 1.5707070707070707) internal successors, (311), 204 states have internal predecessors, (311), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 22:57:16,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-06 22:57:16,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:57:16,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:57:16,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:57:16,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:57:16,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1963040275, now seen corresponding path program 1 times [2023-11-06 22:57:16,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:57:16,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018302361] [2023-11-06 22:57:16,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:57:16,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:57:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:57:16,613 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:57:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:57:16,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:57:16,710 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:57:16,711 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-06 22:57:16,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-11-06 22:57:16,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:57:16,720 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-06 22:57:16,725 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:57:16,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:57:16 BoogieIcfgContainer [2023-11-06 22:57:16,811 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:57:16,812 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:57:16,814 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:57:16,815 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:57:16,815 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:57:16" (3/4) ... [2023-11-06 22:57:16,816 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-06 22:57:16,901 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:57:16,901 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:57:16,903 INFO L158 Benchmark]: Toolchain (without parser) took 2106.58ms. Allocated memory was 121.6MB in the beginning and 151.0MB in the end (delta: 29.4MB). Free memory was 91.7MB in the beginning and 81.1MB in the end (delta: 10.6MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2023-11-06 22:57:16,903 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:57:16,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.76ms. Allocated memory is still 121.6MB. Free memory was 91.4MB in the beginning and 73.4MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 22:57:16,904 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.52ms. Allocated memory is still 121.6MB. Free memory was 73.4MB in the beginning and 70.4MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:57:16,905 INFO L158 Benchmark]: Boogie Preprocessor took 48.64ms. Allocated memory is still 121.6MB. Free memory was 70.4MB in the beginning and 67.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:57:16,906 INFO L158 Benchmark]: RCFGBuilder took 912.92ms. Allocated memory was 121.6MB in the beginning and 151.0MB in the end (delta: 29.4MB). Free memory was 67.7MB in the beginning and 105.5MB in the end (delta: -37.7MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2023-11-06 22:57:16,906 INFO L158 Benchmark]: TraceAbstraction took 512.79ms. Allocated memory is still 151.0MB. Free memory was 104.7MB in the beginning and 85.2MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 22:57:16,907 INFO L158 Benchmark]: Witness Printer took 89.02ms. Allocated memory is still 151.0MB. Free memory was 85.2MB in the beginning and 81.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:57:16,910 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 463.76ms. Allocated memory is still 121.6MB. Free memory was 91.4MB in the beginning and 73.4MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.52ms. Allocated memory is still 121.6MB. Free memory was 73.4MB in the beginning and 70.4MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.64ms. Allocated memory is still 121.6MB. Free memory was 70.4MB in the beginning and 67.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 912.92ms. Allocated memory was 121.6MB in the beginning and 151.0MB in the end (delta: 29.4MB). Free memory was 67.7MB in the beginning and 105.5MB in the end (delta: -37.7MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * TraceAbstraction took 512.79ms. Allocated memory is still 151.0MB. Free memory was 104.7MB in the beginning and 85.2MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 89.02ms. Allocated memory is still 151.0MB. Free memory was 85.2MB in the beginning and 81.1MB 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: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 27]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L32] int q_buf_0 ; [L33] int q_free ; [L34] int q_read_ev ; [L35] int q_write_ev ; [L36] int p_num_write ; [L37] int p_last_write ; [L38] int p_dw_st ; [L39] int p_dw_pc ; [L40] int p_dw_i ; [L41] int c_num_read ; [L42] int c_last_read ; [L43] int c_dr_st ; [L44] int c_dr_pc ; [L45] int c_dr_i ; [L152] static int a_t ; [L394] int m_pc = 0; [L395] int t1_pc = 0; [L396] int t2_pc = 0; [L397] int t3_pc = 0; [L398] int m_st ; [L399] int t1_st ; [L400] int t2_st ; [L401] int t3_st ; [L402] int m_i ; [L403] int t1_i ; [L404] int t2_i ; [L405] int t3_i ; [L406] int M_E = 2; [L407] int T1_E = 2; [L408] int T2_E = 2; [L409] int T3_E = 2; [L410] int E_M = 2; [L411] int E_1 = 2; [L412] int E_2 = 2; [L413] int E_3 = 2; [L419] int token ; [L421] int local ; VAL [E_1=2, E_2=2, E_3=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, a_t=0, c_dr_i=0, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=0, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=0, q_read_ev=0, q_write_ev=0, t1_i=0, t1_pc=0, t1_st=0, t2_i=0, t2_pc=0, t2_st=0, t3_i=0, t3_pc=0, t3_st=0, token=0] [L1106] COND TRUE __VERIFIER_nondet_int() [L1107] CALL main1() [L368] int __retres1 ; [L372] CALL init_model1() [L354] q_free = 1 [L355] q_write_ev = 2 [L356] q_read_ev = q_write_ev [L357] p_num_write = 0 [L358] p_dw_pc = 0 [L359] p_dw_i = 1 [L360] c_num_read = 0 [L361] c_dr_pc = 0 [L362] c_dr_i = 1 VAL [E_1=2, E_2=2, E_3=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, t2_i=0, t2_pc=0, t2_st=0, t3_i=0, t3_pc=0, t3_st=0, token=0] [L372] RET init_model1() [L373] CALL start_simulation1() [L322] int kernel_st ; [L323] int tmp ; [L327] kernel_st = 0 [L328] CALL init_threads1() [L214] COND TRUE (int )p_dw_i == 1 [L215] p_dw_st = 0 VAL [E_1=2, E_2=2, E_3=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, t2_i=0, t2_pc=0, t2_st=0, t3_i=0, t3_pc=0, t3_st=0, token=0] [L219] COND TRUE (int )c_dr_i == 1 [L220] c_dr_st = 0 VAL [E_1=2, E_2=2, E_3=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, t2_i=0, t2_pc=0, t2_st=0, t3_i=0, t3_pc=0, t3_st=0, token=0] [L328] RET init_threads1() [L331] COND TRUE 1 VAL [E_1=2, E_2=2, E_3=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, kernel_st=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, t2_i=0, t2_pc=0, t2_st=0, t3_i=0, t3_pc=0, t3_st=0, token=0] [L334] kernel_st = 1 [L335] CALL eval1() [L249] int tmp ; [L250] int tmp___0 ; [L251] int tmp___1 ; VAL [E_1=2, E_2=2, E_3=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, t2_i=0, t2_pc=0, t2_st=0, t3_i=0, t3_pc=0, t3_st=0, token=0] [L255] COND TRUE 1 VAL [E_1=2, E_2=2, E_3=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, t2_i=0, t2_pc=0, t2_st=0, t3_i=0, t3_pc=0, t3_st=0, token=0] [L258] CALL, EXPR exists_runnable_thread1() VAL [E_1=2, E_2=2, E_3=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, t2_i=0, t2_pc=0, t2_st=0, t3_i=0, t3_pc=0, t3_st=0, token=0] [L229] int __retres1 ; VAL [E_1=2, E_2=2, E_3=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, t2_i=0, t2_pc=0, t2_st=0, t3_i=0, t3_pc=0, t3_st=0, token=0] [L232] COND TRUE (int )p_dw_st == 0 [L233] __retres1 = 1 VAL [E_1=2, E_2=2, E_3=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, __retres1=1, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, t2_i=0, t2_pc=0, t2_st=0, t3_i=0, t3_pc=0, t3_st=0, token=0] [L245] return (__retres1); VAL [E_1=2, E_2=2, E_3=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \result=1, __retres1=1, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, t2_i=0, t2_pc=0, t2_st=0, t3_i=0, t3_pc=0, t3_st=0, token=0] [L258] RET, EXPR exists_runnable_thread1() VAL [E_1=2, E_2=2, E_3=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, exists_runnable_thread1()=1, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, t2_i=0, t2_pc=0, t2_st=0, t3_i=0, t3_pc=0, t3_st=0, token=0] [L258] tmp___1 = exists_runnable_thread1() [L260] COND TRUE \read(tmp___1) VAL [E_1=2, E_2=2, E_3=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, t2_i=0, t2_pc=0, t2_st=0, t3_i=0, t3_pc=0, t3_st=0, tmp___1=1, token=0] [L265] COND TRUE (int )p_dw_st == 0 [L267] tmp = __VERIFIER_nondet_int() [L269] COND FALSE !(\read(tmp)) VAL [E_1=2, E_2=2, E_3=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, t2_i=0, t2_pc=0, t2_st=0, t3_i=0, t3_pc=0, t3_st=0, tmp=0, tmp___1=1, token=0] [L275] CALL error1() VAL [E_1=2, E_2=2, E_3=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, t2_i=0, t2_pc=0, t2_st=0, t3_i=0, t3_pc=0, t3_st=0, token=0] [L27] reach_error() VAL [E_1=2, E_2=2, E_3=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, local=0, m_i=0, m_pc=0, m_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, t1_i=0, t1_pc=0, t1_st=0, t2_i=0, t2_pc=0, t2_st=0, t3_i=0, t3_pc=0, t3_st=0, token=0] - UnprovableResult [Line: 390]: 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 234 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2023-11-06 22:57:16,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e479a369-d70d-4369-ae98-aea090189371/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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