./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pc_sfifo_2.cil-2+token_ring.08.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_2.cil-2+token_ring.08.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b38de45df8f558469e0ee724acb9ff4d380fa7bca593c33e5a93134ad362699b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:23:29,625 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:23:29,741 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:23:29,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:23:29,753 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:23:29,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:23:29,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:23:29,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:23:29,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:23:29,808 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:23:29,808 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:23:29,809 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:23:29,809 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:23:29,811 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:23:29,811 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:23:29,812 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:23:29,812 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:23:29,812 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:23:29,813 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:23:29,813 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:23:29,815 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:23:29,816 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:23:29,817 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:23:29,817 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:23:29,818 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:23:29,818 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:23:29,818 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:23:29,819 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:23:29,819 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:23:29,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:23:29,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:23:29,821 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:23:29,821 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:23:29,821 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:23:29,822 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:23:29,822 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:23:29,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:23:29,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:23:29,823 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:23:29,823 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:23:29,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:23:29,824 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:23:29,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:23:29,824 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:23:29,825 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:23:29,825 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:23:29,825 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:23:29,825 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b38de45df8f558469e0ee724acb9ff4d380fa7bca593c33e5a93134ad362699b [2023-11-23 21:23:30,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:23:30,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:23:30,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:23:30,152 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:23:30,152 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:23:30,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/combinations/pc_sfifo_2.cil-2+token_ring.08.cil-1.c [2023-11-23 21:23:33,652 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:23:33,892 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:23:33,908 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6d0e19-617a-4f17-a26c-a9d4e2308321/sv-benchmarks/c/combinations/pc_sfifo_2.cil-2+token_ring.08.cil-1.c [2023-11-23 21:23:33,932 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire/data/3ba88e0f3/4497157d160245ca830b111a62847a8c/FLAGeb493b5b7 [2023-11-23 21:23:33,948 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire/data/3ba88e0f3/4497157d160245ca830b111a62847a8c [2023-11-23 21:23:33,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:23:33,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:23:33,954 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:23:33,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:23:33,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:23:33,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:23:33" (1/1) ... [2023-11-23 21:23:33,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b31850c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:33, skipping insertion in model container [2023-11-23 21:23:33,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:23:33" (1/1) ... [2023-11-23 21:23:34,025 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:23:34,208 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_8c6d0e19-617a-4f17-a26c-a9d4e2308321/sv-benchmarks/c/combinations/pc_sfifo_2.cil-2+token_ring.08.cil-1.c[914,927] [2023-11-23 21:23:34,265 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_8c6d0e19-617a-4f17-a26c-a9d4e2308321/sv-benchmarks/c/combinations/pc_sfifo_2.cil-2+token_ring.08.cil-1.c[7125,7138] [2023-11-23 21:23:34,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:23:34,431 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:23:34,441 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_8c6d0e19-617a-4f17-a26c-a9d4e2308321/sv-benchmarks/c/combinations/pc_sfifo_2.cil-2+token_ring.08.cil-1.c[914,927] [2023-11-23 21:23:34,461 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_8c6d0e19-617a-4f17-a26c-a9d4e2308321/sv-benchmarks/c/combinations/pc_sfifo_2.cil-2+token_ring.08.cil-1.c[7125,7138] [2023-11-23 21:23:34,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:23:34,565 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:23:34,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:34 WrapperNode [2023-11-23 21:23:34,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:23:34,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:23:34,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:23:34,568 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:23:34,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:34" (1/1) ... [2023-11-23 21:23:34,588 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:34" (1/1) ... [2023-11-23 21:23:34,656 INFO L138 Inliner]: procedures = 69, calls = 82, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 831 [2023-11-23 21:23:34,657 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:23:34,658 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:23:34,658 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:23:34,658 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:23:34,667 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:34" (1/1) ... [2023-11-23 21:23:34,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:34" (1/1) ... [2023-11-23 21:23:34,673 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:34" (1/1) ... [2023-11-23 21:23:34,673 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:34" (1/1) ... [2023-11-23 21:23:34,691 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:34" (1/1) ... [2023-11-23 21:23:34,706 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:34" (1/1) ... [2023-11-23 21:23:34,710 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:34" (1/1) ... [2023-11-23 21:23:34,714 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:34" (1/1) ... [2023-11-23 21:23:34,721 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:23:34,722 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:23:34,722 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:23:34,722 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:23:34,723 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:34" (1/1) ... [2023-11-23 21:23:34,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:23:34,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:23:34,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:23:34,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:23:34,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:23:34,816 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-11-23 21:23:34,817 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-11-23 21:23:34,818 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-11-23 21:23:34,818 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-11-23 21:23:34,818 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-11-23 21:23:34,819 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-11-23 21:23:34,819 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-11-23 21:23:34,819 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-11-23 21:23:34,819 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-11-23 21:23:34,819 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-11-23 21:23:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-11-23 21:23:34,820 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-11-23 21:23:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-11-23 21:23:34,821 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-11-23 21:23:34,821 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-11-23 21:23:34,821 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-11-23 21:23:34,821 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-11-23 21:23:34,822 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-11-23 21:23:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-11-23 21:23:34,824 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-11-23 21:23:34,824 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-11-23 21:23:34,824 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-11-23 21:23:34,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:23:34,825 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-11-23 21:23:34,826 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-11-23 21:23:34,826 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-11-23 21:23:34,826 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-11-23 21:23:34,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:23:34,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:23:34,827 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-11-23 21:23:34,827 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-11-23 21:23:35,006 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:23:35,008 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:23:35,930 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:23:36,432 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:23:36,434 INFO L309 CfgBuilder]: Removed 15 assume(true) statements. [2023-11-23 21:23:36,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:36 BoogieIcfgContainer [2023-11-23 21:23:36,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:23:36,441 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:23:36,441 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:23:36,444 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:23:36,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:23:33" (1/3) ... [2023-11-23 21:23:36,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e12f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:23:36, skipping insertion in model container [2023-11-23 21:23:36,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:34" (2/3) ... [2023-11-23 21:23:36,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e12f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:23:36, skipping insertion in model container [2023-11-23 21:23:36,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:36" (3/3) ... [2023-11-23 21:23:36,449 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-2+token_ring.08.cil-1.c [2023-11-23 21:23:36,470 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:23:36,470 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 21:23:36,552 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:23:36,561 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=FINITE_AUTOMATA, 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;@50715c66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:23:36,561 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 21:23:36,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 226 states, 172 states have (on average 1.5) internal successors, (258), 179 states have internal predecessors, (258), 37 states have call successors, (37), 14 states have call predecessors, (37), 14 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-23 21:23:36,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 21:23:36,585 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:36,586 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:36,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:36,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:36,596 INFO L85 PathProgramCache]: Analyzing trace with hash -760420752, now seen corresponding path program 1 times [2023-11-23 21:23:36,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:36,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910711897] [2023-11-23 21:23:36,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:36,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:37,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:37,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:37,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910711897] [2023-11-23 21:23:37,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910711897] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:37,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:37,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:23:37,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710368420] [2023-11-23 21:23:37,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:37,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:23:37,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:37,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:23:37,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:23:37,089 INFO L87 Difference]: Start difference. First operand has 226 states, 172 states have (on average 1.5) internal successors, (258), 179 states have internal predecessors, (258), 37 states have call successors, (37), 14 states have call predecessors, (37), 14 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-23 21:23:37,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:37,662 INFO L93 Difference]: Finished difference Result 504 states and 737 transitions. [2023-11-23 21:23:37,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:23:37,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 40 [2023-11-23 21:23:37,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:37,689 INFO L225 Difference]: With dead ends: 504 [2023-11-23 21:23:37,689 INFO L226 Difference]: Without dead ends: 282 [2023-11-23 21:23:37,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:23:37,708 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 380 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:37,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 556 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:23:37,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-11-23 21:23:37,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 274. [2023-11-23 21:23:37,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 207 states have (on average 1.4057971014492754) internal successors, (291), 212 states have internal predecessors, (291), 45 states have call successors, (45), 21 states have call predecessors, (45), 20 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-23 21:23:37,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 378 transitions. [2023-11-23 21:23:37,817 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 378 transitions. Word has length 40 [2023-11-23 21:23:37,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:37,818 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 378 transitions. [2023-11-23 21:23:37,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-23 21:23:37,818 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 378 transitions. [2023-11-23 21:23:37,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 21:23:37,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:37,822 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:37,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:23:37,823 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:37,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:37,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1862028913, now seen corresponding path program 1 times [2023-11-23 21:23:37,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:37,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552496934] [2023-11-23 21:23:37,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:37,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:38,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:38,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:38,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552496934] [2023-11-23 21:23:38,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552496934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:38,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:38,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:23:38,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805891845] [2023-11-23 21:23:38,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:38,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:23:38,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:38,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:23:38,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:23:38,016 INFO L87 Difference]: Start difference. First operand 274 states and 378 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-23 21:23:38,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:38,981 INFO L93 Difference]: Finished difference Result 682 states and 887 transitions. [2023-11-23 21:23:38,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:23:38,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 40 [2023-11-23 21:23:38,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:38,995 INFO L225 Difference]: With dead ends: 682 [2023-11-23 21:23:38,995 INFO L226 Difference]: Without dead ends: 549 [2023-11-23 21:23:39,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:23:39,003 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 799 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:39,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 966 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 21:23:39,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2023-11-23 21:23:39,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 459. [2023-11-23 21:23:39,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 338 states have (on average 1.3284023668639053) internal successors, (449), 344 states have internal predecessors, (449), 72 states have call successors, (72), 44 states have call predecessors, (72), 47 states have return successors, (73), 72 states have call predecessors, (73), 69 states have call successors, (73) [2023-11-23 21:23:39,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 594 transitions. [2023-11-23 21:23:39,152 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 594 transitions. Word has length 40 [2023-11-23 21:23:39,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:39,153 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 594 transitions. [2023-11-23 21:23:39,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-23 21:23:39,153 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 594 transitions. [2023-11-23 21:23:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 21:23:39,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:39,165 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:39,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:23:39,167 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:39,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:39,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1771604592, now seen corresponding path program 1 times [2023-11-23 21:23:39,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:39,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317492078] [2023-11-23 21:23:39,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:39,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:23:39,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:23:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:23:39,301 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:23:39,301 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:23:39,302 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-23 21:23:39,304 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-11-23 21:23:39,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:23:39,309 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-23 21:23:39,315 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:23:39,402 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated [2023-11-23 21:23:39,408 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated [2023-11-23 21:23:39,414 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-23 21:23:39,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:23:39 BoogieIcfgContainer [2023-11-23 21:23:39,446 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:23:39,447 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:23:39,447 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:23:39,447 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:23:39,448 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:36" (3/4) ... [2023-11-23 21:23:39,449 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 21:23:39,492 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated [2023-11-23 21:23:39,496 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated [2023-11-23 21:23:39,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-23 21:23:39,634 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:23:39,634 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:23:39,636 INFO L158 Benchmark]: Toolchain (without parser) took 5682.29ms. Allocated memory is still 205.5MB. Free memory was 164.2MB in the beginning and 103.9MB in the end (delta: 60.3MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. [2023-11-23 21:23:39,637 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 134.2MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:23:39,637 INFO L158 Benchmark]: CACSL2BoogieTranslator took 612.28ms. Allocated memory is still 205.5MB. Free memory was 164.2MB in the beginning and 140.5MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-23 21:23:39,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.06ms. Allocated memory is still 205.5MB. Free memory was 140.5MB in the beginning and 136.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:23:39,638 INFO L158 Benchmark]: Boogie Preprocessor took 63.05ms. Allocated memory is still 205.5MB. Free memory was 136.3MB in the beginning and 132.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:23:39,639 INFO L158 Benchmark]: RCFGBuilder took 1714.42ms. Allocated memory is still 205.5MB. Free memory was 132.7MB in the beginning and 164.8MB in the end (delta: -32.0MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2023-11-23 21:23:39,639 INFO L158 Benchmark]: TraceAbstraction took 3005.26ms. Allocated memory is still 205.5MB. Free memory was 163.7MB in the beginning and 114.4MB in the end (delta: 49.4MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2023-11-23 21:23:39,639 INFO L158 Benchmark]: Witness Printer took 187.90ms. Allocated memory is still 205.5MB. Free memory was 114.4MB in the beginning and 103.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:23:39,643 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 134.2MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 612.28ms. Allocated memory is still 205.5MB. Free memory was 164.2MB in the beginning and 140.5MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.06ms. Allocated memory is still 205.5MB. Free memory was 140.5MB in the beginning and 136.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.05ms. Allocated memory is still 205.5MB. Free memory was 136.3MB in the beginning and 132.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1714.42ms. Allocated memory is still 205.5MB. Free memory was 132.7MB in the beginning and 164.8MB in the end (delta: -32.0MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3005.26ms. Allocated memory is still 205.5MB. Free memory was 163.7MB in the beginning and 114.4MB in the end (delta: 49.4MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Witness Printer took 187.90ms. Allocated memory is still 205.5MB. Free memory was 114.4MB in the beginning and 103.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 28]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L33] int q_buf_0 ; [L34] int q_free ; [L35] int q_read_ev ; [L36] int q_write_ev ; [L37] int q_req_up ; [L38] int q_ev ; [L59] int p_num_write ; [L60] int p_last_write ; [L61] int p_dw_st ; [L62] int p_dw_pc ; [L63] int p_dw_i ; [L64] int c_num_read ; [L65] int c_last_read ; [L66] int c_dr_st ; [L67] int c_dr_pc ; [L68] int c_dr_i ; [L172] static int a_t ; [L500] int m_pc = 0; [L501] int t1_pc = 0; [L502] int t2_pc = 0; [L503] int t3_pc = 0; [L504] int t4_pc = 0; [L505] int t5_pc = 0; [L506] int t6_pc = 0; [L507] int t7_pc = 0; [L508] int t8_pc = 0; [L509] int m_st ; [L510] int t1_st ; [L511] int t2_st ; [L512] int t3_st ; [L513] int t4_st ; [L514] int t5_st ; [L515] int t6_st ; [L516] int t7_st ; [L517] int t8_st ; [L518] int m_i ; [L519] int t1_i ; [L520] int t2_i ; [L521] int t3_i ; [L522] int t4_i ; [L523] int t5_i ; [L524] int t6_i ; [L525] int t7_i ; [L526] int t8_i ; [L527] int M_E = 2; [L528] int T1_E = 2; [L529] int T2_E = 2; [L530] int T3_E = 2; [L531] int T4_E = 2; [L532] int T5_E = 2; [L533] int T6_E = 2; [L534] int T7_E = 2; [L535] int T8_E = 2; [L536] int E_M = 2; [L537] int E_1 = 2; [L538] int E_2 = 2; [L539] int E_3 = 2; [L540] int E_4 = 2; [L541] int E_5 = 2; [L542] int E_6 = 2; [L543] int E_7 = 2; [L544] int E_8 = 2; [L555] int token ; [L557] int local ; [L1837] COND TRUE __VERIFIER_nondet_int() [L1838] CALL main1() [L474] int __retres1 ; [L478] CALL init_model1() [L460] q_free = 1 [L461] q_write_ev = 2 [L462] q_read_ev = q_write_ev [L463] p_num_write = 0 [L464] p_dw_pc = 0 [L465] p_dw_i = 1 [L466] c_num_read = 0 [L467] c_dr_pc = 0 [L468] c_dr_i = 1 [L478] RET init_model1() [L479] CALL start_simulation1() [L414] int kernel_st ; [L415] int tmp ; [L419] kernel_st = 0 VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L420] CALL update_channels1() VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_E=2, \old(q_ev)=0, \old(q_read_ev)=2, \old(q_req_up)=0, \old(q_write_ev)=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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L230] COND FALSE !((int )q_req_up == 1) [L420] RET update_channels1() VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L421] CALL init_threads1() [L245] COND TRUE (int )p_dw_i == 1 [L246] p_dw_st = 0 [L250] COND TRUE (int )c_dr_i == 1 [L251] c_dr_st = 0 [L421] RET init_threads1() [L422] CALL fire_delta_events1() VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_E=2, \old(q_read_ev)=2, \old(q_write_ev)=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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L283] COND FALSE !((int )q_read_ev == 0) [L288] COND FALSE !((int )q_write_ev == 0) [L422] RET fire_delta_events1() VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L423] CALL activate_threads1() VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_E=2, \old(c_dr_st)=0, \old(p_dw_st)=0, 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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L316] int tmp ; [L317] int tmp___0 ; VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_E=2, \old(c_dr_st)=0, \old(p_dw_st)=0, 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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L321] CALL, EXPR is_do_write_p_triggered() VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_E=2, \old(c_dr_st)=0, \old(p_dw_st)=0, 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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L70] int __retres1 ; VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_E=2, \old(c_dr_st)=0, \old(p_dw_st)=0, 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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L73] COND FALSE !((int )p_dw_pc == 1) VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_E=2, \old(c_dr_st)=0, \old(p_dw_st)=0, 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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L83] __retres1 = 0 VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_E=2, \old(c_dr_st)=0, \old(p_dw_st)=0, __retres1=0, 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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L85] return (__retres1); [L321] RET, EXPR is_do_write_p_triggered() VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_E=2, \old(c_dr_st)=0, \old(p_dw_st)=0, 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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L321] tmp = is_do_write_p_triggered() [L323] COND FALSE !(\read(tmp)) VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_E=2, \old(c_dr_st)=0, \old(p_dw_st)=0, 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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, tmp=0, token=0] [L329] CALL, EXPR is_do_read_c_triggered() VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_E=2, \old(c_dr_st)=0, \old(p_dw_st)=0, 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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L89] int __retres1 ; VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_E=2, \old(c_dr_st)=0, \old(p_dw_st)=0, 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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L92] COND FALSE !((int )c_dr_pc == 1) VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_E=2, \old(c_dr_st)=0, \old(p_dw_st)=0, 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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L102] __retres1 = 0 VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_E=2, \old(c_dr_st)=0, \old(p_dw_st)=0, __retres1=0, 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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L104] return (__retres1); [L329] RET, EXPR is_do_read_c_triggered() VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_E=2, \old(c_dr_st)=0, \old(p_dw_st)=0, 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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, tmp=0, token=0] [L329] tmp___0 = is_do_read_c_triggered() [L331] COND FALSE !(\read(tmp___0)) [L423] RET activate_threads1() VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L424] CALL reset_delta_events1() VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_E=2, \old(q_read_ev)=2, \old(q_write_ev)=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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L301] COND FALSE !((int )q_read_ev == 1) [L306] COND FALSE !((int )q_write_ev == 1) [L424] RET reset_delta_events1() VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L427] COND TRUE 1 [L430] kernel_st = 1 [L431] CALL eval1() [L341] int tmp ; [L342] int tmp___0 ; [L343] int tmp___1 ; VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L347] COND TRUE 1 VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L350] CALL, EXPR exists_runnable_thread1() VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L260] int __retres1 ; [L263] COND TRUE (int )p_dw_st == 0 [L264] __retres1 = 1 [L276] return (__retres1); [L350] RET, EXPR exists_runnable_thread1() VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L350] tmp___1 = exists_runnable_thread1() [L352] COND TRUE \read(tmp___1) VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, tmp___1=1, token=0] [L357] COND TRUE (int )p_dw_st == 0 [L359] tmp = __VERIFIER_nondet_int() [L361] COND FALSE !(\read(tmp)) VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, tmp=0, tmp___1=1, token=0] [L367] CALL error1() VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] [L28] reach_error() VAL [E_1=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_M=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, T4_E=2, T5_E=2, T6_E=2, T7_E=2, T8_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_ev=0, q_free=1, q_read_ev=2, q_req_up=0, 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, t4_i=0, t4_pc=0, t4_st=0, t5_i=0, t5_pc=0, t5_st=0, t6_i=0, t6_pc=0, t6_st=0, t7_i=0, t7_pc=0, t7_st=0, t8_i=0, t8_pc=0, t8_st=0, token=0] - UnprovableResult [Line: 496]: 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 15 procedures, 226 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1183 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1179 mSDsluCounter, 1522 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 817 mSDsCounter, 274 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 799 IncrementalHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 274 mSolverCounterUnsat, 705 mSDtfsCounter, 799 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=459occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 98 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-23 21:23:39,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6d0e19-617a-4f17-a26c-a9d4e2308321/bin/utaipan-verify-mE87zJ7Ire/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