./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/singleton.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/singleton.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh --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 ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:37:35,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:37:35,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:37:35,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:37:35,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:37:35,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:37:35,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:37:35,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:37:35,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:37:35,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:37:35,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:37:35,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:37:35,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:37:35,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:37:35,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:37:35,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:37:35,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:37:35,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:37:35,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:37:35,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:37:35,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:37:35,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:37:35,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:37:35,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:37:35,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:37:35,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:37:35,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:37:35,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:37:35,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:37:35,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:37:35,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:37:35,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:37:35,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:37:35,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:37:35,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:37:35,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:37:35,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:37:35,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:37:35,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:37:35,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:37:35,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:37:35,812 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 07:37:35,833 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:37:35,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:37:35,834 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:37:35,834 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:37:35,834 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:37:35,835 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:37:35,835 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:37:35,835 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:37:35,835 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:37:35,835 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:37:35,835 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:37:35,835 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:37:35,835 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:37:35,836 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:37:35,836 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:37:35,836 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:37:35,836 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:37:35,836 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:37:35,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:37:35,837 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:37:35,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:37:35,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:37:35,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:37:35,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:37:35,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:37:35,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:37:35,838 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:37:35,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:37:35,838 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:37:35,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:37:35,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:37:35,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:37:35,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:37:35,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:37:35,839 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:37:35,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:37:35,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:37:35,839 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:37:35,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:37:35,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:37:35,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:37:35,839 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f [2022-12-14 07:37:36,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:37:36,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:37:36,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:37:36,064 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:37:36,064 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:37:36,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread/singleton.i [2022-12-14 07:37:38,666 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:37:38,896 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:37:38,897 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/sv-benchmarks/c/pthread/singleton.i [2022-12-14 07:37:38,910 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh/data/d6e029651/217cb687ab3d4914865fcb2c4652e42e/FLAG8f6ca4f37 [2022-12-14 07:37:38,924 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh/data/d6e029651/217cb687ab3d4914865fcb2c4652e42e [2022-12-14 07:37:38,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:37:38,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:37:38,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:37:38,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:37:38,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:37:38,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:37:38" (1/1) ... [2022-12-14 07:37:38,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b587088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:37:38, skipping insertion in model container [2022-12-14 07:37:38,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:37:38" (1/1) ... [2022-12-14 07:37:38,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:37:38,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:37:39,131 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 07:37:39,309 WARN L237 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_19839420-a434-49fb-a7eb-7ba5d96123d0/sv-benchmarks/c/pthread/singleton.i[55547,55560] [2022-12-14 07:37:39,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:37:39,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:37:39,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:37:39,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:37:39,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:37:39,330 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:37:39,340 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 07:37:39,354 WARN L237 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_19839420-a434-49fb-a7eb-7ba5d96123d0/sv-benchmarks/c/pthread/singleton.i[55547,55560] [2022-12-14 07:37:39,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:37:39,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:37:39,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:37:39,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:37:39,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:37:39,397 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:37:39,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:37:39 WrapperNode [2022-12-14 07:37:39,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:37:39,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:37:39,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:37:39,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:37:39,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:37:39" (1/1) ... [2022-12-14 07:37:39,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:37:39" (1/1) ... [2022-12-14 07:37:39,427 INFO L138 Inliner]: procedures = 325, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-12-14 07:37:39,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:37:39,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:37:39,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:37:39,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:37:39,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:37:39" (1/1) ... [2022-12-14 07:37:39,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:37:39" (1/1) ... [2022-12-14 07:37:39,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:37:39" (1/1) ... [2022-12-14 07:37:39,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:37:39" (1/1) ... [2022-12-14 07:37:39,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:37:39" (1/1) ... [2022-12-14 07:37:39,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:37:39" (1/1) ... [2022-12-14 07:37:39,444 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:37:39" (1/1) ... [2022-12-14 07:37:39,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:37:39" (1/1) ... [2022-12-14 07:37:39,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:37:39,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:37:39,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:37:39,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:37:39,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:37:39" (1/1) ... [2022-12-14 07:37:39,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:37:39,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:37:39,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:37:39,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:37:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 07:37:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:37:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:37:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 07:37:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:37:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2022-12-14 07:37:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2022-12-14 07:37:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-14 07:37:39,506 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-14 07:37:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-14 07:37:39,506 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-14 07:37:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-14 07:37:39,506 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-14 07:37:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:37:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:37:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:37:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:37:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:37:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:37:39,508 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 07:37:39,608 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:37:39,610 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:37:39,765 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:37:39,771 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:37:39,771 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:37:39,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:37:39 BoogieIcfgContainer [2022-12-14 07:37:39,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:37:39,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:37:39,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:37:39,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:37:39,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:37:38" (1/3) ... [2022-12-14 07:37:39,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed0d073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:37:39, skipping insertion in model container [2022-12-14 07:37:39,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:37:39" (2/3) ... [2022-12-14 07:37:39,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed0d073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:37:39, skipping insertion in model container [2022-12-14 07:37:39,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:37:39" (3/3) ... [2022-12-14 07:37:39,781 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2022-12-14 07:37:39,790 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 07:37:39,799 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:37:39,799 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:37:39,799 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 07:37:39,933 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2022-12-14 07:37:39,972 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 07:37:39,983 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 204 places, 194 transitions, 495 flow [2022-12-14 07:37:39,985 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 204 places, 194 transitions, 495 flow [2022-12-14 07:37:39,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 194 transitions, 495 flow [2022-12-14 07:37:40,043 INFO L130 PetriNetUnfolder]: 6/131 cut-off events. [2022-12-14 07:37:40,043 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-14 07:37:40,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 131 events. 6/131 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2022-12-14 07:37:40,049 INFO L119 LiptonReduction]: Number of co-enabled transitions 1344 [2022-12-14 07:37:42,562 INFO L134 LiptonReduction]: Checked pairs total: 4486 [2022-12-14 07:37:42,563 INFO L136 LiptonReduction]: Total number of compositions: 120 [2022-12-14 07:37:42,569 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 81 transitions, 269 flow [2022-12-14 07:37:42,617 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 742 states, 741 states have (on average 3.477732793522267) internal successors, (2577), 741 states have internal predecessors, (2577), 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) [2022-12-14 07:37:42,630 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:37:42,634 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1a1c47e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:37:42,634 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-12-14 07:37:42,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 742 states, 741 states have (on average 3.477732793522267) internal successors, (2577), 741 states have internal predecessors, (2577), 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) [2022-12-14 07:37:42,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 07:37:42,649 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:37:42,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:37:42,650 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2022-12-14 07:37:42,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:37:42,653 INFO L85 PathProgramCache]: Analyzing trace with hash -460571327, now seen corresponding path program 1 times [2022-12-14 07:37:42,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:37:42,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266221315] [2022-12-14 07:37:42,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:37:42,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:37:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:37:43,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:37:43,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:37:43,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266221315] [2022-12-14 07:37:43,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266221315] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:37:43,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:37:43,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:37:43,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818706129] [2022-12-14 07:37:43,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:37:43,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:37:43,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:37:43,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:37:43,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:37:43,204 INFO L87 Difference]: Start difference. First operand has 742 states, 741 states have (on average 3.477732793522267) internal successors, (2577), 741 states have internal predecessors, (2577), 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 20.0) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-12-14 07:37:43,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:37:43,313 INFO L93 Difference]: Finished difference Result 1165 states and 3969 transitions. [2022-12-14 07:37:43,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:37:43,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 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 40 [2022-12-14 07:37:43,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:37:43,326 INFO L225 Difference]: With dead ends: 1165 [2022-12-14 07:37:43,326 INFO L226 Difference]: Without dead ends: 672 [2022-12-14 07:37:43,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:37:43,329 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 13 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:37:43,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 22 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:37:43,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-12-14 07:37:43,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 482. [2022-12-14 07:37:43,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 481 states have (on average 3.274428274428274) internal successors, (1575), 481 states have internal predecessors, (1575), 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) [2022-12-14 07:37:43,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1575 transitions. [2022-12-14 07:37:43,379 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1575 transitions. Word has length 40 [2022-12-14 07:37:43,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:37:43,380 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 1575 transitions. [2022-12-14 07:37:43,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-12-14 07:37:43,380 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1575 transitions. [2022-12-14 07:37:43,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 07:37:43,382 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:37:43,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:37:43,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:37:43,382 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2022-12-14 07:37:43,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:37:43,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1237376965, now seen corresponding path program 2 times [2022-12-14 07:37:43,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:37:43,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116701692] [2022-12-14 07:37:43,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:37:43,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:37:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:37:43,440 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 07:37:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:37:43,494 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 07:37:43,495 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 07:37:43,496 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2022-12-14 07:37:43,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 12 remaining) [2022-12-14 07:37:43,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 12 remaining) [2022-12-14 07:37:43,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2022-12-14 07:37:43,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2022-12-14 07:37:43,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 12 remaining) [2022-12-14 07:37:43,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2022-12-14 07:37:43,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-12-14 07:37:43,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2022-12-14 07:37:43,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2022-12-14 07:37:43,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2022-12-14 07:37:43,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2022-12-14 07:37:43,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:37:43,501 INFO L445 BasicCegarLoop]: Path program histogram: [2] [2022-12-14 07:37:43,505 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 07:37:43,505 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:37:43,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:37:43 BasicIcfg [2022-12-14 07:37:43,555 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:37:43,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:37:43,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:37:43,555 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:37:43,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:37:39" (3/4) ... [2022-12-14 07:37:43,557 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 07:37:43,607 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 07:37:43,607 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:37:43,608 INFO L158 Benchmark]: Toolchain (without parser) took 4680.17ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 86.9MB in the beginning and 110.9MB in the end (delta: -24.0MB). Peak memory consumption was 75.9MB. Max. memory is 16.1GB. [2022-12-14 07:37:43,608 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:37:43,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.27ms. Allocated memory is still 127.9MB. Free memory was 86.9MB in the beginning and 72.8MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 07:37:43,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.76ms. Allocated memory is still 127.9MB. Free memory was 72.8MB in the beginning and 70.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:37:43,609 INFO L158 Benchmark]: Boogie Preprocessor took 18.46ms. Allocated memory is still 127.9MB. Free memory was 70.7MB in the beginning and 69.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:37:43,609 INFO L158 Benchmark]: RCFGBuilder took 326.01ms. Allocated memory is still 127.9MB. Free memory was 69.1MB in the beginning and 53.2MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 07:37:43,609 INFO L158 Benchmark]: TraceAbstraction took 3779.61ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 52.7MB in the beginning and 47.7MB in the end (delta: 5.1MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2022-12-14 07:37:43,610 INFO L158 Benchmark]: Witness Printer took 52.12ms. Allocated memory is still 155.2MB. Free memory was 47.7MB in the beginning and 110.9MB in the end (delta: -63.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 07:37:43,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.27ms. Allocated memory is still 127.9MB. Free memory was 86.9MB in the beginning and 72.8MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.76ms. Allocated memory is still 127.9MB. Free memory was 72.8MB in the beginning and 70.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.46ms. Allocated memory is still 127.9MB. Free memory was 70.7MB in the beginning and 69.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 326.01ms. Allocated memory is still 127.9MB. Free memory was 69.1MB in the beginning and 53.2MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3779.61ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 52.7MB in the beginning and 47.7MB in the end (delta: 5.1MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. * Witness Printer took 52.12ms. Allocated memory is still 155.2MB. Free memory was 47.7MB in the beginning and 110.9MB in the end (delta: -63.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 204 PlacesBefore, 92 PlacesAfterwards, 194 TransitionsBefore, 81 TransitionsAfterwards, 1344 CoEnabledTransitionPairs, 5 FixpointIterations, 62 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 120 TotalNumberOfCompositions, 4486 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2938, independent: 2763, independent conditional: 0, independent unconditional: 2763, dependent: 175, dependent conditional: 0, dependent unconditional: 175, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 943, independent: 900, independent conditional: 0, independent unconditional: 900, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 943, independent: 892, independent conditional: 0, independent unconditional: 892, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 51, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2938, independent: 1863, independent conditional: 0, independent unconditional: 1863, dependent: 132, dependent conditional: 0, dependent unconditional: 132, unknown: 943, unknown conditional: 0, unknown unconditional: 943] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 134, Positive conditional cache size: 0, Positive unconditional cache size: 134, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 1123]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1124] 0 char *v; [L1161] 0 pthread_t t; [L1162] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [arg={0:0}, pthread_create(&t, 0, thread0, 0)=15, t={9:0}, v={0:0}] [L1146] 1 pthread_t t1, t2, t3, t4, t5; [L1147] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t1, 0, thread1, 0)=16, t1={14:0}, t2={11:0}, t3={8:0}, t4={10:0}, t5={13:0}, v={0:0}] [L1148] 1 \read(t1) VAL [\read(t1)=16, arg={0:0}, arg={0:0}, arg={0:0}, t1={14:0}, t2={11:0}, t3={8:0}, t4={10:0}, t5={13:0}, v={0:0}] [L1127] 2 v = malloc(sizeof(char)) [L1128] 2 return 0; [L1148] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\read(t1)=16, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={14:0}, t2={11:0}, t3={8:0}, t4={10:0}, t5={13:0}, v={6:0}] [L1149] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t2, 0, thread2, 0)=17, t1={14:0}, t2={11:0}, t3={8:0}, t4={10:0}, t5={13:0}, v={6:0}] [L1150] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t3, 0, thread3, 0)=18, t1={14:0}, t2={11:0}, t3={8:0}, t4={10:0}, t5={13:0}, v={6:0}] [L1163] 0 \read(t) VAL [\read(t)=15, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t4, 0, thread2, 0)=19, t={9:0}, t1={14:0}, t2={11:0}, t3={8:0}, t4={10:0}, t5={13:0}, v={6:0}] [L1151] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t4, 0, thread2, 0)=19, t1={14:0}, t2={11:0}, t3={8:0}, t4={10:0}, t5={13:0}, v={6:0}] [L1133] 5 v[0] = 'X' [L1135] 5 return 0; [L1133] 3 v[0] = 'X' [L1135] 3 return 0; [L1152] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t5, 0, thread2, 0)=20, t1={14:0}, t2={11:0}, t3={8:0}, t4={10:0}, t5={13:0}, v={6:0}] [L1153] 1 \read(t2) VAL [\read(t2)=17, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={14:0}, t2={11:0}, t3={8:0}, t4={10:0}, t5={13:0}, v={6:0}] [L1133] 6 v[0] = 'X' [L1135] 6 return 0; [L1140] 4 v[0] = 'Y' [L1142] 4 return 0; [L1153] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\read(t2)=17, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={14:0}, t2={11:0}, t3={8:0}, t4={10:0}, t5={13:0}, v={6:0}] [L1154] 1 \read(t3) VAL [\read(t3)=18, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={14:0}, t2={11:0}, t3={8:0}, t4={10:0}, t5={13:0}, v={6:0}] [L1154] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\read(t3)=18, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={14:0}, t2={11:0}, t3={8:0}, t4={10:0}, t5={13:0}, v={6:0}] [L1155] 1 \read(t4) VAL [\read(t4)=19, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={14:0}, t2={11:0}, t3={8:0}, t4={10:0}, t5={13:0}, v={6:0}] [L1155] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\read(t4)=19, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={14:0}, t2={11:0}, t3={8:0}, t4={10:0}, t5={13:0}, v={6:0}] [L1156] 1 \read(t5) VAL [\read(t5)=20, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={14:0}, t2={11:0}, t3={8:0}, t4={10:0}, t5={13:0}, v={6:0}] [L1156] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\read(t5)=20, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={14:0}, t2={11:0}, t3={8:0}, t4={10:0}, t5={13:0}, v={6:0}] [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1163] FCALL, JOIN 1 pthread_join(t, 0) VAL [\read(t)=15, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t={9:0}, v={6:0}] [L1164] EXPR 0 v[0] [L1164] CALL 0 __VERIFIER_assert(v[0] == 'X') [L1123] COND TRUE 0 !expression [L1123] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, v={6:0}] - UnprovableResult [Line: 1151]: 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: 1152]: 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: 1150]: 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: 1147]: 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: 1149]: 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: 1162]: 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: 1151]: 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: 1149]: 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: 1152]: 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: 1150]: 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: 1147]: 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 11 procedures, 224 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 13 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=742occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 190 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 07:37:43,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19839420-a434-49fb-a7eb-7ba5d96123d0/bin/utaipan-gh47qXpMRh/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