./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix022_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix022_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V --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 c9c6cc212d45f96c9e6587b0ee0d7644c3fabb2c198a03ef385d6df2e7b46689 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:10:57,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:10:57,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:10:57,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:10:57,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:10:57,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:10:57,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:10:57,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:10:57,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:10:57,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:10:57,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:10:57,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:10:57,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:10:57,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:10:57,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:10:57,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:10:57,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:10:57,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:10:57,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:10:57,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:10:57,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:10:57,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:10:57,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:10:57,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:10:57,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:10:57,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:10:57,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:10:57,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:10:57,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:10:57,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:10:57,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:10:57,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:10:57,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:10:57,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:10:57,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:10:57,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:10:57,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:10:57,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:10:57,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:10:57,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:10:57,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:10:57,941 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:10:58,000 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:10:58,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:10:58,001 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:10:58,002 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:10:58,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:10:58,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:10:58,012 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:10:58,012 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:10:58,012 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:10:58,013 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:10:58,014 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:10:58,015 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:10:58,015 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:10:58,015 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:10:58,016 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:10:58,016 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:10:58,016 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:10:58,017 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:10:58,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:10:58,019 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:10:58,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:10:58,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:10:58,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:10:58,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:10:58,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:10:58,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:10:58,024 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:10:58,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:10:58,024 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:10:58,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:10:58,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:10:58,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:10:58,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:10:58,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:10:58,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:10:58,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:10:58,027 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:10:58,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:10:58,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:10:58,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:10:58,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:10:58,029 INFO L138 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_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9c6cc212d45f96c9e6587b0ee0d7644c3fabb2c198a03ef385d6df2e7b46689 [2021-11-23 03:10:58,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:10:58,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:10:58,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:10:58,468 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:10:58,469 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:10:58,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/pthread-wmm/mix022_tso.i [2021-11-23 03:10:58,567 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V/data/e6ed9d1bf/8b97511c70cd4fdb86fa366e5c187ae9/FLAGa6345556a [2021-11-23 03:10:59,289 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:10:59,290 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/sv-benchmarks/c/pthread-wmm/mix022_tso.i [2021-11-23 03:10:59,320 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V/data/e6ed9d1bf/8b97511c70cd4fdb86fa366e5c187ae9/FLAGa6345556a [2021-11-23 03:10:59,516 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V/data/e6ed9d1bf/8b97511c70cd4fdb86fa366e5c187ae9 [2021-11-23 03:10:59,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:10:59,521 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:10:59,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:10:59,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:10:59,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:10:59,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:59" (1/1) ... [2021-11-23 03:10:59,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@526f35ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:59, skipping insertion in model container [2021-11-23 03:10:59,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:59" (1/1) ... [2021-11-23 03:10:59,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:10:59,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:10:59,859 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_0b928ae0-ba77-4317-8d0a-0143a2e400d0/sv-benchmarks/c/pthread-wmm/mix022_tso.i[944,957] [2021-11-23 03:11:00,084 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:11:00,094 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:11:00,107 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_0b928ae0-ba77-4317-8d0a-0143a2e400d0/sv-benchmarks/c/pthread-wmm/mix022_tso.i[944,957] [2021-11-23 03:11:00,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:11:00,248 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:11:00,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:00 WrapperNode [2021-11-23 03:11:00,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:11:00,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:11:00,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:11:00,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:11:00,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:00" (1/1) ... [2021-11-23 03:11:00,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:00" (1/1) ... [2021-11-23 03:11:00,334 INFO L137 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 362 [2021-11-23 03:11:00,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:11:00,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:11:00,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:11:00,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:11:00,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:00" (1/1) ... [2021-11-23 03:11:00,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:00" (1/1) ... [2021-11-23 03:11:00,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:00" (1/1) ... [2021-11-23 03:11:00,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:00" (1/1) ... [2021-11-23 03:11:00,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:00" (1/1) ... [2021-11-23 03:11:00,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:00" (1/1) ... [2021-11-23 03:11:00,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:00" (1/1) ... [2021-11-23 03:11:00,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:11:00,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:11:00,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:11:00,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:11:00,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:00" (1/1) ... [2021-11-23 03:11:00,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:11:00,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:11:00,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:11:00,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:11:00,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:11:00,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 03:11:00,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:11:00,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:11:00,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:11:00,543 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 03:11:00,544 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 03:11:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 03:11:00,544 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 03:11:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:11:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 03:11:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:11:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:11:00,547 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 03:11:00,739 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:11:00,741 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:11:01,564 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:11:02,119 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:11:02,120 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 03:11:02,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:02 BoogieIcfgContainer [2021-11-23 03:11:02,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:11:02,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:11:02,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:11:02,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:11:02,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:10:59" (1/3) ... [2021-11-23 03:11:02,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349cf562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:11:02, skipping insertion in model container [2021-11-23 03:11:02,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:00" (2/3) ... [2021-11-23 03:11:02,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349cf562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:11:02, skipping insertion in model container [2021-11-23 03:11:02,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:02" (3/3) ... [2021-11-23 03:11:02,132 INFO L111 eAbstractionObserver]: Analyzing ICFG mix022_tso.i [2021-11-23 03:11:02,138 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 03:11:02,138 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:11:02,138 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 03:11:02,139 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 03:11:02,188 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,189 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,189 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,189 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,189 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,190 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,190 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,190 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,191 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,191 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,191 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,191 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,192 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,192 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,193 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,193 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,193 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,193 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,194 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,194 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,194 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,194 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,195 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,195 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,195 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,195 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,196 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,196 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,196 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,196 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,197 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,197 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,197 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,198 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,198 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,199 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,199 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,199 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,200 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,200 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,200 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,200 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,200 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,201 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,201 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,201 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,201 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,201 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,201 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,201 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,202 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,202 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,202 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,202 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,202 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,202 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,202 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,203 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,203 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,203 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,203 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,204 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,204 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,204 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,204 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,204 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,205 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,205 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,205 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,205 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,205 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,205 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,205 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,206 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,207 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,209 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,210 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,210 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,210 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,212 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,213 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,214 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,215 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,215 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,221 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,221 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,221 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,221 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,221 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,221 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,222 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,222 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,222 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,223 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,223 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,223 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,223 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,223 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,223 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,223 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,224 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,224 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,224 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,224 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,224 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,224 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,224 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,224 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,225 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,225 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,225 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,225 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,225 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,225 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,225 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,226 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,226 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,226 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,228 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,228 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,228 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,228 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,228 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,228 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,229 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,229 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,229 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,229 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,229 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,230 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,230 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,230 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,230 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,230 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,231 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,231 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,236 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,236 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,236 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,236 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,237 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,237 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,237 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,237 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,237 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,237 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,238 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,238 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,239 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,240 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,240 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,240 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,240 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,240 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,240 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,241 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,241 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,241 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,241 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,241 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,241 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,241 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,242 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,242 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,242 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,242 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,243 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,243 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,243 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,243 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,243 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,245 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,245 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,245 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,245 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,245 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,245 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,246 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,246 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,246 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,246 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:11:02,247 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-23 03:11:02,295 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:11:02,303 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:11:02,304 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-23 03:11:02,318 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-23 03:11:02,333 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 96 transitions, 202 flow [2021-11-23 03:11:02,336 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 96 transitions, 202 flow [2021-11-23 03:11:02,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 96 transitions, 202 flow [2021-11-23 03:11:02,398 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-11-23 03:11:02,398 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-23 03:11:02,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-11-23 03:11:02,405 INFO L116 LiptonReduction]: Number of co-enabled transitions 1216 [2021-11-23 03:11:22,908 INFO L131 LiptonReduction]: Checked pairs total: 3293 [2021-11-23 03:11:22,908 INFO L133 LiptonReduction]: Total number of compositions: 89 [2021-11-23 03:11:22,946 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 21 transitions, 52 flow [2021-11-23 03:11:22,992 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 162 states, 159 states have (on average 2.610062893081761) internal successors, (415), 161 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:22,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 159 states have (on average 2.610062893081761) internal successors, (415), 161 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:23,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 03:11:23,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:11:23,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-23 03:11:23,004 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-23 03:11:23,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:11:23,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1240791688, now seen corresponding path program 1 times [2021-11-23 03:11:23,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:11:23,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285809900] [2021-11-23 03:11:23,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:11:23,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:11:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:11:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:11:23,312 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:11:23,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285809900] [2021-11-23 03:11:23,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285809900] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:11:23,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:11:23,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 03:11:23,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047298220] [2021-11-23 03:11:23,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:11:23,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:11:23,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:11:23,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:11:23,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:11:23,353 INFO L87 Difference]: Start difference. First operand has 162 states, 159 states have (on average 2.610062893081761) internal successors, (415), 161 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:23,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:11:23,471 INFO L93 Difference]: Finished difference Result 137 states and 315 transitions. [2021-11-23 03:11:23,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:11:23,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-23 03:11:23,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:11:23,490 INFO L225 Difference]: With dead ends: 137 [2021-11-23 03:11:23,490 INFO L226 Difference]: Without dead ends: 132 [2021-11-23 03:11:23,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:11:23,497 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:11:23,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:11:23,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-11-23 03:11:23,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2021-11-23 03:11:23,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 2.33587786259542) internal successors, (306), 131 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:23,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 306 transitions. [2021-11-23 03:11:23,583 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 306 transitions. Word has length 5 [2021-11-23 03:11:23,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:11:23,584 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 306 transitions. [2021-11-23 03:11:23,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:23,584 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 306 transitions. [2021-11-23 03:11:23,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 03:11:23,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:11:23,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:11:23,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:11:23,586 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-23 03:11:23,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:11:23,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1600021676, now seen corresponding path program 1 times [2021-11-23 03:11:23,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:11:23,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652297974] [2021-11-23 03:11:23,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:11:23,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:11:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:11:23,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:11:23,811 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:11:23,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652297974] [2021-11-23 03:11:23,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652297974] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:11:23,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:11:23,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 03:11:23,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020228858] [2021-11-23 03:11:23,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:11:23,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:11:23,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:11:23,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:11:23,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:11:23,816 INFO L87 Difference]: Start difference. First operand 132 states and 306 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:23,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:11:23,899 INFO L93 Difference]: Finished difference Result 122 states and 278 transitions. [2021-11-23 03:11:23,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:11:23,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-23 03:11:23,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:11:23,904 INFO L225 Difference]: With dead ends: 122 [2021-11-23 03:11:23,904 INFO L226 Difference]: Without dead ends: 122 [2021-11-23 03:11:23,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:11:23,907 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:11:23,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:11:23,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-23 03:11:23,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-23 03:11:23,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 2.2975206611570247) internal successors, (278), 121 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:23,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 278 transitions. [2021-11-23 03:11:23,921 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 278 transitions. Word has length 7 [2021-11-23 03:11:23,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:11:23,922 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 278 transitions. [2021-11-23 03:11:23,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:23,922 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 278 transitions. [2021-11-23 03:11:23,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 03:11:23,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:11:23,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:11:23,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:11:23,925 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-23 03:11:23,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:11:23,926 INFO L85 PathProgramCache]: Analyzing trace with hash -58752545, now seen corresponding path program 1 times [2021-11-23 03:11:23,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:11:23,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197512157] [2021-11-23 03:11:23,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:11:23,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:11:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:11:24,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:11:24,334 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:11:24,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197512157] [2021-11-23 03:11:24,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197512157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:11:24,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:11:24,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:11:24,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129795122] [2021-11-23 03:11:24,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:11:24,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:11:24,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:11:24,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:11:24,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:11:24,338 INFO L87 Difference]: Start difference. First operand 122 states and 278 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:24,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:11:24,493 INFO L93 Difference]: Finished difference Result 100 states and 191 transitions. [2021-11-23 03:11:24,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:11:24,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-23 03:11:24,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:11:24,495 INFO L225 Difference]: With dead ends: 100 [2021-11-23 03:11:24,495 INFO L226 Difference]: Without dead ends: 70 [2021-11-23 03:11:24,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:11:24,497 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 22 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:11:24,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 10 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:11:24,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-23 03:11:24,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-23 03:11:24,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.7681159420289856) internal successors, (122), 69 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:24,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 122 transitions. [2021-11-23 03:11:24,504 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 122 transitions. Word has length 9 [2021-11-23 03:11:24,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:11:24,504 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 122 transitions. [2021-11-23 03:11:24,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:24,505 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 122 transitions. [2021-11-23 03:11:24,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 03:11:24,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:11:24,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:11:24,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:11:24,513 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-23 03:11:24,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:11:24,514 INFO L85 PathProgramCache]: Analyzing trace with hash -274442347, now seen corresponding path program 1 times [2021-11-23 03:11:24,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:11:24,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718576821] [2021-11-23 03:11:24,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:11:24,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:11:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:11:24,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:11:24,789 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:11:24,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718576821] [2021-11-23 03:11:24,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718576821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:11:24,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:11:24,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:11:24,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897848316] [2021-11-23 03:11:24,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:11:24,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:11:24,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:11:24,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:11:24,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:11:24,792 INFO L87 Difference]: Start difference. First operand 70 states and 122 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:24,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:11:24,983 INFO L93 Difference]: Finished difference Result 55 states and 90 transitions. [2021-11-23 03:11:24,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:11:24,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-23 03:11:24,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:11:24,985 INFO L225 Difference]: With dead ends: 55 [2021-11-23 03:11:24,985 INFO L226 Difference]: Without dead ends: 45 [2021-11-23 03:11:24,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:11:24,987 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 27 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:11:24,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 10 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:11:24,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-23 03:11:24,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-23 03:11:24,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 44 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:24,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 72 transitions. [2021-11-23 03:11:24,992 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 72 transitions. Word has length 12 [2021-11-23 03:11:24,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:11:24,992 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 72 transitions. [2021-11-23 03:11:24,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:24,992 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 72 transitions. [2021-11-23 03:11:24,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 03:11:24,993 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:11:24,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:11:24,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:11:24,994 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-23 03:11:24,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:11:24,995 INFO L85 PathProgramCache]: Analyzing trace with hash -416287607, now seen corresponding path program 1 times [2021-11-23 03:11:24,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:11:24,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958834287] [2021-11-23 03:11:24,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:11:24,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:11:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:11:25,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:11:25,131 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:11:25,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958834287] [2021-11-23 03:11:25,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958834287] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:11:25,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:11:25,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:11:25,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121477693] [2021-11-23 03:11:25,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:11:25,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:11:25,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:11:25,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:11:25,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:11:25,134 INFO L87 Difference]: Start difference. First operand 45 states and 72 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:25,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:11:25,219 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2021-11-23 03:11:25,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:11:25,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-23 03:11:25,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:11:25,220 INFO L225 Difference]: With dead ends: 59 [2021-11-23 03:11:25,220 INFO L226 Difference]: Without dead ends: 25 [2021-11-23 03:11:25,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:11:25,223 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:11:25,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 4 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:11:25,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-23 03:11:25,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-23 03:11:25,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:25,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2021-11-23 03:11:25,227 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 16 [2021-11-23 03:11:25,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:11:25,228 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-11-23 03:11:25,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:25,228 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2021-11-23 03:11:25,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 03:11:25,229 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:11:25,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:11:25,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:11:25,230 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-23 03:11:25,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:11:25,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1267982761, now seen corresponding path program 2 times [2021-11-23 03:11:25,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:11:25,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824203138] [2021-11-23 03:11:25,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:11:25,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:11:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:11:26,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:11:26,136 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:11:26,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824203138] [2021-11-23 03:11:26,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824203138] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:11:26,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:11:26,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 03:11:26,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923621284] [2021-11-23 03:11:26,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:11:26,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 03:11:26,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:11:26,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 03:11:26,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:11:26,139 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:26,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:11:26,527 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2021-11-23 03:11:26,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 03:11:26,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-23 03:11:26,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:11:26,529 INFO L225 Difference]: With dead ends: 33 [2021-11-23 03:11:26,529 INFO L226 Difference]: Without dead ends: 21 [2021-11-23 03:11:26,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2021-11-23 03:11:26,531 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 30 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:11:26,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 7 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:11:26,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-23 03:11:26,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-23 03:11:26,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:26,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-11-23 03:11:26,534 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 16 [2021-11-23 03:11:26,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:11:26,534 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-11-23 03:11:26,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:26,535 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-11-23 03:11:26,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 03:11:26,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:11:26,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:11:26,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:11:26,536 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-23 03:11:26,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:11:26,537 INFO L85 PathProgramCache]: Analyzing trace with hash 2094295877, now seen corresponding path program 3 times [2021-11-23 03:11:26,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:11:26,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363333424] [2021-11-23 03:11:26,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:11:26,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:11:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:11:26,648 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 03:11:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:11:26,850 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 03:11:26,851 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 03:11:26,853 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-11-23 03:11:26,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-11-23 03:11:26,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 5 remaining) [2021-11-23 03:11:26,860 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 5 remaining) [2021-11-23 03:11:26,860 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2021-11-23 03:11:26,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 03:11:26,864 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2021-11-23 03:11:26,870 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-23 03:11:26,871 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:11:27,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:11:27 BasicIcfg [2021-11-23 03:11:27,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:11:27,013 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:11:27,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:11:27,014 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:11:27,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:02" (3/4) ... [2021-11-23 03:11:27,017 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 03:11:27,163 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 03:11:27,163 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:11:27,164 INFO L158 Benchmark]: Toolchain (without parser) took 27643.42ms. Allocated memory was 86.0MB in the beginning and 176.2MB in the end (delta: 90.2MB). Free memory was 47.8MB in the beginning and 43.2MB in the end (delta: 4.7MB). Peak memory consumption was 93.6MB. Max. memory is 16.1GB. [2021-11-23 03:11:27,165 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 86.0MB. Free memory was 65.5MB in the beginning and 65.5MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:11:27,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 726.84ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 47.6MB in the beginning and 73.7MB in the end (delta: -26.1MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2021-11-23 03:11:27,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.39ms. Allocated memory is still 113.2MB. Free memory was 73.7MB in the beginning and 70.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 03:11:27,166 INFO L158 Benchmark]: Boogie Preprocessor took 96.16ms. Allocated memory is still 113.2MB. Free memory was 70.3MB in the beginning and 67.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:11:27,167 INFO L158 Benchmark]: RCFGBuilder took 1689.41ms. Allocated memory is still 113.2MB. Free memory was 67.8MB in the beginning and 63.5MB in the end (delta: 4.3MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2021-11-23 03:11:27,167 INFO L158 Benchmark]: TraceAbstraction took 24888.57ms. Allocated memory was 113.2MB in the beginning and 176.2MB in the end (delta: 62.9MB). Free memory was 63.5MB in the beginning and 53.6MB in the end (delta: 9.8MB). Peak memory consumption was 72.8MB. Max. memory is 16.1GB. [2021-11-23 03:11:27,168 INFO L158 Benchmark]: Witness Printer took 149.95ms. Allocated memory is still 176.2MB. Free memory was 53.6MB in the beginning and 43.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 03:11:27,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 86.0MB. Free memory was 65.5MB in the beginning and 65.5MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 726.84ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 47.6MB in the beginning and 73.7MB in the end (delta: -26.1MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.39ms. Allocated memory is still 113.2MB. Free memory was 73.7MB in the beginning and 70.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 96.16ms. Allocated memory is still 113.2MB. Free memory was 70.3MB in the beginning and 67.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1689.41ms. Allocated memory is still 113.2MB. Free memory was 67.8MB in the beginning and 63.5MB in the end (delta: 4.3MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * TraceAbstraction took 24888.57ms. Allocated memory was 113.2MB in the beginning and 176.2MB in the end (delta: 62.9MB). Free memory was 63.5MB in the beginning and 53.6MB in the end (delta: 9.8MB). Peak memory consumption was 72.8MB. Max. memory is 16.1GB. * Witness Printer took 149.95ms. Allocated memory is still 176.2MB. Free memory was 53.6MB in the beginning and 43.2MB 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.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.6s, 101 PlacesBefore, 27 PlacesAfterwards, 96 TransitionsBefore, 21 TransitionsAfterwards, 1216 CoEnabledTransitionPairs, 7 FixpointIterations, 38 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 89 TotalNumberOfCompositions, 3293 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1287, positive: 1152, positive conditional: 0, positive unconditional: 1152, negative: 135, negative conditional: 0, negative unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 811, positive: 771, positive conditional: 0, positive unconditional: 771, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 811, positive: 761, positive conditional: 0, positive unconditional: 761, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 680, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 661, negative conditional: 0, negative unconditional: 661, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1287, positive: 381, positive conditional: 0, positive unconditional: 381, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 811, unknown conditional: 0, unknown unconditional: 811] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 40, Positive conditional cache size: 0, Positive unconditional cache size: 40, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - 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: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L717] 0 _Bool x$flush_delayed; [L718] 0 int x$mem_tmp; [L719] 0 _Bool x$r_buff0_thd0; [L720] 0 _Bool x$r_buff0_thd1; [L721] 0 _Bool x$r_buff0_thd2; [L722] 0 _Bool x$r_buff1_thd0; [L723] 0 _Bool x$r_buff1_thd1; [L724] 0 _Bool x$r_buff1_thd2; [L725] 0 _Bool x$read_delayed; [L726] 0 int *x$read_delayed_var; [L727] 0 int x$w_buff0; [L728] 0 _Bool x$w_buff0_used; [L729] 0 int x$w_buff1; [L730] 0 _Bool x$w_buff1_used; [L732] 0 int y = 0; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L810] 0 pthread_t t597; [L811] FCALL, FORK 0 pthread_create(&t597, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t597, ((void *)0), P0, ((void *)0))=-1, t597={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L812] 0 pthread_t t598; [L813] FCALL, FORK 0 pthread_create(&t598, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t598, ((void *)0), P1, ((void *)0))=0, t597={5:0}, t598={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L758] 2 x$w_buff1 = x$w_buff0 [L759] 2 x$w_buff0 = 2 [L760] 2 x$w_buff1_used = x$w_buff0_used [L761] 2 x$w_buff0_used = (_Bool)1 [L762] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L762] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L763] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L764] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L765] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L766] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L769] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L770] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L771] 2 x$flush_delayed = weak$$choice2 [L772] 2 x$mem_tmp = x [L773] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1) [L773] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1 [L773] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1) [L773] 2 x = !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1) [L774] EXPR 2 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0)) [L774] 2 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0)) [L775] EXPR 2 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1)) [L775] 2 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1)) [L776] EXPR 2 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used)) [L776] 2 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used)) [L777] EXPR 2 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L777] 2 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L778] EXPR 2 weak$$choice2 ? x$r_buff0_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2)) [L778] 2 x$r_buff0_thd2 = weak$$choice2 ? x$r_buff0_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2)) [L779] EXPR 2 weak$$choice2 ? x$r_buff1_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L779] 2 x$r_buff1_thd2 = weak$$choice2 ? x$r_buff1_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L780] 2 __unbuffered_p1_EAX = x [L781] EXPR 2 x$flush_delayed ? x$mem_tmp : x [L781] 2 x = x$flush_delayed ? x$mem_tmp : x [L782] 2 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=51, weak$$choice2=255, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L785] 2 __unbuffered_p1_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=51, weak$$choice2=255, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L738] 1 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=51, weak$$choice2=255, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L741] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=51, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L744] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L744] EXPR 1 x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x [L744] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L744] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L745] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L745] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L746] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L746] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L747] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L747] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L748] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L748] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L751] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L753] 1 return 0; [L788] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L788] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L789] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L789] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L790] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L790] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L791] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L791] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L792] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L792] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L795] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 2 return 0; [L815] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L817] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L817] RET 0 assume_abort_if_not(main$tmp_guard0) [L819] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L819] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L819] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L819] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L820] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L820] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L821] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L821] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L822] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L822] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L823] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L823] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L826] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L827] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L828] 0 x$flush_delayed = weak$$choice2 [L829] 0 x$mem_tmp = x [L830] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L830] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L831] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L831] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L832] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L832] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L833] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L833] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L834] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L834] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L835] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L835] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L836] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L836] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L837] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 2 && __unbuffered_p1_EBX == 0) [L838] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L838] 0 x = x$flush_delayed ? x$mem_tmp : x [L839] 0 x$flush_delayed = (_Bool)0 [L841] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=52, weak$$choice2=255, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 813]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 811]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 115 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 24.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 20.7s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 134 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 287 IncrementalHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 18 mSDtfsCounter, 287 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=0, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 775 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2021-11-23 03:11:27,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b928ae0-ba77-4317-8d0a-0143a2e400d0/bin/utaipan-EQgc7hIp5V/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