./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.13.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.13.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 920deddbd9ca21ae403ae6fa9c7440c39da38f2fbc603998333936503ab5900a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:25:40,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:25:40,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:25:40,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:25:40,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:25:40,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:25:40,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:25:40,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:25:40,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:25:40,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:25:40,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:25:40,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:25:40,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:25:40,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:25:40,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:25:40,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:25:40,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:25:40,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:25:40,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:25:40,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:25:40,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:25:41,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:25:41,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:25:41,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:25:41,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:25:41,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:25:41,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:25:41,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:25:41,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:25:41,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:25:41,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:25:41,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:25:41,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:25:41,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:25:41,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:25:41,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:25:41,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:25:41,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:25:41,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:25:41,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:25:41,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:25:41,035 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:25:41,102 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:25:41,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:25:41,103 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:25:41,104 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:25:41,105 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:25:41,105 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:25:41,105 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:25:41,105 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:25:41,106 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:25:41,106 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:25:41,107 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:25:41,107 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:25:41,107 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:25:41,108 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:25:41,108 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:25:41,108 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:25:41,108 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:25:41,109 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:25:41,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:25:41,110 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:25:41,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:25:41,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:25:41,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:25:41,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:25:41,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:25:41,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:25:41,111 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:25:41,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:25:41,112 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:25:41,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:25:41,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:25:41,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:25:41,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:25:41,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:25:41,113 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:25:41,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:25:41,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:25:41,114 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:25:41,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:25:41,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:25:41,114 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:25:41,115 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 920deddbd9ca21ae403ae6fa9c7440c39da38f2fbc603998333936503ab5900a [2022-11-03 02:25:41,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:25:41,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:25:41,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:25:41,467 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:25:41,468 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:25:41,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.13.cil-2.c [2022-11-03 02:25:41,557 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI/data/306428f28/3c1794e2eca9454791f8eaa4194f579f/FLAG481ddc490 [2022-11-03 02:25:42,149 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:25:42,150 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.13.cil-2.c [2022-11-03 02:25:42,176 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI/data/306428f28/3c1794e2eca9454791f8eaa4194f579f/FLAG481ddc490 [2022-11-03 02:25:42,444 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI/data/306428f28/3c1794e2eca9454791f8eaa4194f579f [2022-11-03 02:25:42,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:25:42,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:25:42,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:25:42,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:25:42,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:25:42,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:25:42" (1/1) ... [2022-11-03 02:25:42,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f993616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:42, skipping insertion in model container [2022-11-03 02:25:42,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:25:42" (1/1) ... [2022-11-03 02:25:42,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:25:42,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:25:42,781 WARN L230 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_81b42813-8716-458a-8733-0342e7403baf/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.13.cil-2.c[913,926] [2022-11-03 02:25:42,833 WARN L230 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_81b42813-8716-458a-8733-0342e7403baf/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.13.cil-2.c[5994,6007] [2022-11-03 02:25:42,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:25:42,980 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:25:42,993 WARN L230 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_81b42813-8716-458a-8733-0342e7403baf/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.13.cil-2.c[913,926] [2022-11-03 02:25:43,011 WARN L230 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_81b42813-8716-458a-8733-0342e7403baf/sv-benchmarks/c/combinations/pc_sfifo_1.cil-1+token_ring.13.cil-2.c[5994,6007] [2022-11-03 02:25:43,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:25:43,107 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:25:43,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:43 WrapperNode [2022-11-03 02:25:43,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:25:43,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:25:43,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:25:43,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:25:43,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:43" (1/1) ... [2022-11-03 02:25:43,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:43" (1/1) ... [2022-11-03 02:25:43,207 INFO L138 Inliner]: procedures = 74, calls = 88, calls flagged for inlining = 49, calls inlined = 49, statements flattened = 1114 [2022-11-03 02:25:43,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:25:43,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:25:43,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:25:43,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:25:43,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:43" (1/1) ... [2022-11-03 02:25:43,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:43" (1/1) ... [2022-11-03 02:25:43,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:43" (1/1) ... [2022-11-03 02:25:43,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:43" (1/1) ... [2022-11-03 02:25:43,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:43" (1/1) ... [2022-11-03 02:25:43,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:43" (1/1) ... [2022-11-03 02:25:43,315 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:43" (1/1) ... [2022-11-03 02:25:43,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:43" (1/1) ... [2022-11-03 02:25:43,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:25:43,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:25:43,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:25:43,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:25:43,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:43" (1/1) ... [2022-11-03 02:25:43,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:25:43,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:25:43,388 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:25:43,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:25:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:25:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-03 02:25:43,462 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-03 02:25:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2022-11-03 02:25:43,462 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2022-11-03 02:25:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2022-11-03 02:25:43,463 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2022-11-03 02:25:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2022-11-03 02:25:43,463 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2022-11-03 02:25:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2022-11-03 02:25:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2022-11-03 02:25:43,464 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2022-11-03 02:25:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2022-11-03 02:25:43,464 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2022-11-03 02:25:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2022-11-03 02:25:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:25:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2022-11-03 02:25:43,465 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2022-11-03 02:25:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:25:43,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:25:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2022-11-03 02:25:43,466 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2022-11-03 02:25:43,650 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:25:43,653 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:25:44,828 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:25:45,674 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:25:45,675 INFO L300 CfgBuilder]: Removed 20 assume(true) statements. [2022-11-03 02:25:45,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:25:45 BoogieIcfgContainer [2022-11-03 02:25:45,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:25:45,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:25:45,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:25:45,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:25:45,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:25:42" (1/3) ... [2022-11-03 02:25:45,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a62d3e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:25:45, skipping insertion in model container [2022-11-03 02:25:45,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:25:43" (2/3) ... [2022-11-03 02:25:45,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a62d3e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:25:45, skipping insertion in model container [2022-11-03 02:25:45,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:25:45" (3/3) ... [2022-11-03 02:25:45,693 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-1+token_ring.13.cil-2.c [2022-11-03 02:25:45,721 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:25:45,721 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-03 02:25:45,819 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:25:45,835 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=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;@3efc5c00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:25:45,837 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-03 02:25:45,851 INFO L276 IsEmpty]: Start isEmpty. Operand has 251 states, 205 states have (on average 1.5658536585365854) internal successors, (321), 211 states have internal predecessors, (321), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-03 02:25:45,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 02:25:45,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:45,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:45,865 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:45,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:45,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1583416609, now seen corresponding path program 1 times [2022-11-03 02:25:45,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:45,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230716537] [2022-11-03 02:25:45,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:45,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:25:46,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:25:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:25:46,098 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:25:46,100 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:25:46,102 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-03 02:25:46,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-03 02:25:46,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:25:46,110 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-03 02:25:46,116 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:25:46,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:25:46 BoogieIcfgContainer [2022-11-03 02:25:46,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:25:46,211 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:25:46,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:25:46,212 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:25:46,212 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:25:45" (3/4) ... [2022-11-03 02:25:46,215 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-03 02:25:46,340 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:25:46,353 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:25:46,354 INFO L158 Benchmark]: Toolchain (without parser) took 3905.31ms. Allocated memory was 90.2MB in the beginning and 144.7MB in the end (delta: 54.5MB). Free memory was 65.2MB in the beginning and 79.5MB in the end (delta: -14.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-03 02:25:46,355 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 90.2MB. Free memory was 61.5MB in the beginning and 61.4MB in the end (delta: 45.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:25:46,355 INFO L158 Benchmark]: CACSL2BoogieTranslator took 657.73ms. Allocated memory is still 90.2MB. Free memory was 65.0MB in the beginning and 52.7MB in the end (delta: 12.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-03 02:25:46,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.79ms. Allocated memory is still 90.2MB. Free memory was 52.7MB in the beginning and 47.6MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:25:46,356 INFO L158 Benchmark]: Boogie Preprocessor took 131.31ms. Allocated memory is still 90.2MB. Free memory was 47.6MB in the beginning and 43.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:25:46,357 INFO L158 Benchmark]: RCFGBuilder took 2340.53ms. Allocated memory was 90.2MB in the beginning and 144.7MB in the end (delta: 54.5MB). Free memory was 42.8MB in the beginning and 108.9MB in the end (delta: -66.1MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2022-11-03 02:25:46,357 INFO L158 Benchmark]: TraceAbstraction took 526.58ms. Allocated memory is still 144.7MB. Free memory was 107.9MB in the beginning and 85.8MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-03 02:25:46,357 INFO L158 Benchmark]: Witness Printer took 141.54ms. Allocated memory is still 144.7MB. Free memory was 85.8MB in the beginning and 79.5MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:25:46,365 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 90.2MB. Free memory was 61.5MB in the beginning and 61.4MB in the end (delta: 45.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 657.73ms. Allocated memory is still 90.2MB. Free memory was 65.0MB in the beginning and 52.7MB in the end (delta: 12.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.79ms. Allocated memory is still 90.2MB. Free memory was 52.7MB in the beginning and 47.6MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 131.31ms. Allocated memory is still 90.2MB. Free memory was 47.6MB in the beginning and 43.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2340.53ms. Allocated memory was 90.2MB in the beginning and 144.7MB in the end (delta: 54.5MB). Free memory was 42.8MB in the beginning and 108.9MB in the end (delta: -66.1MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. * TraceAbstraction took 526.58ms. Allocated memory is still 144.7MB. Free memory was 107.9MB in the beginning and 85.8MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 141.54ms. Allocated memory is still 144.7MB. Free memory was 85.8MB in the beginning and 79.5MB in the end (delta: 6.3MB). 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 t4_pc = 0; [L399] int t5_pc = 0; [L400] int t6_pc = 0; [L401] int t7_pc = 0; [L402] int t8_pc = 0; [L403] int t9_pc = 0; [L404] int t10_pc = 0; [L405] int t11_pc = 0; [L406] int t12_pc = 0; [L407] int t13_pc = 0; [L408] int m_st ; [L409] int t1_st ; [L410] int t2_st ; [L411] int t3_st ; [L412] int t4_st ; [L413] int t5_st ; [L414] int t6_st ; [L415] int t7_st ; [L416] int t8_st ; [L417] int t9_st ; [L418] int t10_st ; [L419] int t11_st ; [L420] int t12_st ; [L421] int t13_st ; [L422] int m_i ; [L423] int t1_i ; [L424] int t2_i ; [L425] int t3_i ; [L426] int t4_i ; [L427] int t5_i ; [L428] int t6_i ; [L429] int t7_i ; [L430] int t8_i ; [L431] int t9_i ; [L432] int t10_i ; [L433] int t11_i ; [L434] int t12_i ; [L435] int t13_i ; [L436] int M_E = 2; [L437] int T1_E = 2; [L438] int T2_E = 2; [L439] int T3_E = 2; [L440] int T4_E = 2; [L441] int T5_E = 2; [L442] int T6_E = 2; [L443] int T7_E = 2; [L444] int T8_E = 2; [L445] int T9_E = 2; [L446] int T10_E = 2; [L447] int T11_E = 2; [L448] int T12_E = 2; [L449] int T13_E = 2; [L450] int E_M = 2; [L451] int E_1 = 2; [L452] int E_2 = 2; [L453] int E_3 = 2; [L454] int E_4 = 2; [L455] int E_5 = 2; [L456] int E_6 = 2; [L457] int E_7 = 2; [L458] int E_8 = 2; [L459] int E_9 = 2; [L460] int E_10 = 2; [L461] int E_11 = 2; [L462] int E_12 = 2; [L463] int E_13 = 2; [L479] int token ; [L481] int local ; [L2356] COND TRUE __VERIFIER_nondet_int() [L2357] 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 [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 [L219] COND TRUE (int )c_dr_i == 1 [L220] c_dr_st = 0 [L328] RET init_threads1() [L331] COND TRUE 1 [L334] kernel_st = 1 [L335] CALL eval1() [L249] int tmp ; [L250] int tmp___0 ; [L251] int tmp___1 ; VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, E_1=2, E_10=2, E_11=2, E_12=2, E_13=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_9=2, E_M=2, local=0, M_E=2, 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, T10_E=2, t10_i=0, t10_pc=0, t10_st=0, T11_E=2, t11_i=0, t11_pc=0, t11_st=0, T12_E=2, t12_i=0, t12_pc=0, t12_st=0, T13_E=2, t13_i=0, t13_pc=0, t13_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, T3_E=2, t3_i=0, t3_pc=0, t3_st=0, T4_E=2, t4_i=0, t4_pc=0, t4_st=0, T5_E=2, t5_i=0, t5_pc=0, t5_st=0, T6_E=2, t6_i=0, t6_pc=0, t6_st=0, T7_E=2, t7_i=0, t7_pc=0, t7_st=0, T8_E=2, t8_i=0, t8_pc=0, t8_st=0, T9_E=2, t9_i=0, t9_pc=0, t9_st=0, token=0] [L255] COND TRUE 1 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, E_1=2, E_10=2, E_11=2, E_12=2, E_13=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_9=2, E_M=2, local=0, M_E=2, 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, T10_E=2, t10_i=0, t10_pc=0, t10_st=0, T11_E=2, t11_i=0, t11_pc=0, t11_st=0, T12_E=2, t12_i=0, t12_pc=0, t12_st=0, T13_E=2, t13_i=0, t13_pc=0, t13_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, T3_E=2, t3_i=0, t3_pc=0, t3_st=0, T4_E=2, t4_i=0, t4_pc=0, t4_st=0, T5_E=2, t5_i=0, t5_pc=0, t5_st=0, T6_E=2, t6_i=0, t6_pc=0, t6_st=0, T7_E=2, t7_i=0, t7_pc=0, t7_st=0, T8_E=2, t8_i=0, t8_pc=0, t8_st=0, T9_E=2, t9_i=0, t9_pc=0, t9_st=0, token=0] [L258] CALL, EXPR exists_runnable_thread1() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, E_1=2, E_10=2, E_11=2, E_12=2, E_13=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_9=2, E_M=2, local=0, M_E=2, 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, T10_E=2, t10_i=0, t10_pc=0, t10_st=0, T11_E=2, t11_i=0, t11_pc=0, t11_st=0, T12_E=2, t12_i=0, t12_pc=0, t12_st=0, T13_E=2, t13_i=0, t13_pc=0, t13_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, T3_E=2, t3_i=0, t3_pc=0, t3_st=0, T4_E=2, t4_i=0, t4_pc=0, t4_st=0, T5_E=2, t5_i=0, t5_pc=0, t5_st=0, T6_E=2, t6_i=0, t6_pc=0, t6_st=0, T7_E=2, t7_i=0, t7_pc=0, t7_st=0, T8_E=2, t8_i=0, t8_pc=0, t8_st=0, T9_E=2, t9_i=0, t9_pc=0, t9_st=0, token=0] [L229] int __retres1 ; [L232] COND TRUE (int )p_dw_st == 0 [L233] __retres1 = 1 [L245] return (__retres1); [L258] RET, EXPR exists_runnable_thread1() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, E_1=2, E_10=2, E_11=2, E_12=2, E_13=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_9=2, E_M=2, exists_runnable_thread1()=1, local=0, M_E=2, 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, T10_E=2, t10_i=0, t10_pc=0, t10_st=0, T11_E=2, t11_i=0, t11_pc=0, t11_st=0, T12_E=2, t12_i=0, t12_pc=0, t12_st=0, T13_E=2, t13_i=0, t13_pc=0, t13_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, T3_E=2, t3_i=0, t3_pc=0, t3_st=0, T4_E=2, t4_i=0, t4_pc=0, t4_st=0, T5_E=2, t5_i=0, t5_pc=0, t5_st=0, T6_E=2, t6_i=0, t6_pc=0, t6_st=0, T7_E=2, t7_i=0, t7_pc=0, t7_st=0, T8_E=2, t8_i=0, t8_pc=0, t8_st=0, T9_E=2, t9_i=0, t9_pc=0, t9_st=0, token=0] [L258] tmp___1 = exists_runnable_thread1() [L260] COND TRUE \read(tmp___1) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, E_1=2, E_10=2, E_11=2, E_12=2, E_13=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_9=2, E_M=2, local=0, M_E=2, 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, T10_E=2, t10_i=0, t10_pc=0, t10_st=0, T11_E=2, t11_i=0, t11_pc=0, t11_st=0, T12_E=2, t12_i=0, t12_pc=0, t12_st=0, T13_E=2, t13_i=0, t13_pc=0, t13_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, T3_E=2, t3_i=0, t3_pc=0, t3_st=0, T4_E=2, t4_i=0, t4_pc=0, t4_st=0, T5_E=2, t5_i=0, t5_pc=0, t5_st=0, T6_E=2, t6_i=0, t6_pc=0, t6_st=0, T7_E=2, t7_i=0, t7_pc=0, t7_st=0, T8_E=2, t8_i=0, t8_pc=0, t8_st=0, T9_E=2, t9_i=0, t9_pc=0, t9_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 [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, E_1=2, E_10=2, E_11=2, E_12=2, E_13=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_9=2, E_M=2, local=0, M_E=2, 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, T10_E=2, t10_i=0, t10_pc=0, t10_st=0, T11_E=2, t11_i=0, t11_pc=0, t11_st=0, T12_E=2, t12_i=0, t12_pc=0, t12_st=0, T13_E=2, t13_i=0, t13_pc=0, t13_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, T3_E=2, t3_i=0, t3_pc=0, t3_st=0, T4_E=2, t4_i=0, t4_pc=0, t4_st=0, T5_E=2, t5_i=0, t5_pc=0, t5_st=0, T6_E=2, t6_i=0, t6_pc=0, t6_st=0, T7_E=2, t7_i=0, t7_pc=0, t7_st=0, T8_E=2, t8_i=0, t8_pc=0, t8_st=0, T9_E=2, t9_i=0, t9_pc=0, t9_st=0, tmp=0, tmp___1=1, token=0] [L275] CALL error1() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, E_1=2, E_10=2, E_11=2, E_12=2, E_13=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_9=2, E_M=2, local=0, M_E=2, 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, T10_E=2, t10_i=0, t10_pc=0, t10_st=0, T11_E=2, t11_i=0, t11_pc=0, t11_st=0, T12_E=2, t12_i=0, t12_pc=0, t12_st=0, T13_E=2, t13_i=0, t13_pc=0, t13_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, T3_E=2, t3_i=0, t3_pc=0, t3_st=0, T4_E=2, t4_i=0, t4_pc=0, t4_st=0, T5_E=2, t5_i=0, t5_pc=0, t5_st=0, T6_E=2, t6_i=0, t6_pc=0, t6_st=0, T7_E=2, t7_i=0, t7_pc=0, t7_st=0, T8_E=2, t8_i=0, t8_pc=0, t8_st=0, T9_E=2, t9_i=0, t9_pc=0, t9_st=0, token=0] [L27] reach_error() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, E_1=2, E_10=2, E_11=2, E_12=2, E_13=2, E_2=2, E_3=2, E_4=2, E_5=2, E_6=2, E_7=2, E_8=2, E_9=2, E_M=2, local=0, M_E=2, 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, T10_E=2, t10_i=0, t10_pc=0, t10_st=0, T11_E=2, t11_i=0, t11_pc=0, t11_st=0, T12_E=2, t12_i=0, t12_pc=0, t12_st=0, T13_E=2, t13_i=0, t13_pc=0, t13_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, T3_E=2, t3_i=0, t3_pc=0, t3_st=0, T4_E=2, t4_i=0, t4_pc=0, t4_st=0, T5_E=2, t5_i=0, t5_pc=0, t5_st=0, T6_E=2, t6_i=0, t6_pc=0, t6_st=0, T7_E=2, t7_i=0, t7_pc=0, t7_st=0, T8_E=2, t8_i=0, t8_pc=0, t8_st=0, T9_E=2, t9_i=0, t9_pc=0, t9_st=0, token=0] - UnprovableResult [Line: 390]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 251 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=251occurred 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, 13 NumberOfCodeBlocks, 13 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! [2022-11-03 02:25:46,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b42813-8716-458a-8733-0342e7403baf/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE