./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs --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 829a526a08c17a0464f47e0e793f1cfb84d5a37f ............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:18:34,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:18:34,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:18:34,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:18:34,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:18:34,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:18:34,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:18:34,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:18:34,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:18:34,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:18:34,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:18:34,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:18:34,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:18:34,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:18:34,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:18:34,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:18:34,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:18:34,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:18:34,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:18:34,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:18:34,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:18:34,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:18:34,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:18:34,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:18:34,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:18:34,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:18:34,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:18:34,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:18:34,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:18:34,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:18:34,888 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:18:34,889 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:18:34,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:18:34,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:18:34,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:18:34,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:18:34,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:18:34,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:18:34,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:18:34,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:18:34,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:18:34,900 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:18:34,957 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:18:34,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:18:34,959 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:18:34,960 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:18:34,960 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:18:34,960 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:18:34,961 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:18:34,961 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:18:34,961 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:18:34,961 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:18:34,963 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:18:34,963 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:18:34,963 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:18:34,964 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:18:34,964 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:18:34,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:18:34,966 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:18:34,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:18:34,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:18:34,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:18:34,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:18:34,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:18:34,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:18:34,967 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:18:34,968 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:18:34,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:18:34,968 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:18:34,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:18:34,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:18:34,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:18:34,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:18:34,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:18:34,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:18:34,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:18:34,973 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:18:34,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:18:34,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:18:34,973 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:18:34,974 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:18:34,974 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_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 829a526a08c17a0464f47e0e793f1cfb84d5a37f [2021-10-16 02:18:35,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:18:35,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:18:35,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:18:35,261 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:18:35,262 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:18:35,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2021-10-16 02:18:35,361 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs/data/56e6752fd/82227ffd25a045238e95663e7b1edac0/FLAG3a488ff86 [2021-10-16 02:18:35,920 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:18:35,920 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2021-10-16 02:18:35,935 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs/data/56e6752fd/82227ffd25a045238e95663e7b1edac0/FLAG3a488ff86 [2021-10-16 02:18:36,240 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs/data/56e6752fd/82227ffd25a045238e95663e7b1edac0 [2021-10-16 02:18:36,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:18:36,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:18:36,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:18:36,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:18:36,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:18:36,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:18:36" (1/1) ... [2021-10-16 02:18:36,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f254ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:36, skipping insertion in model container [2021-10-16 02:18:36,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:18:36" (1/1) ... [2021-10-16 02:18:36,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:18:36,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:18:36,475 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-16 02:18:36,723 WARN L228 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_c9e6e179-aa95-48b4-b399-f4e426b70f84/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2021-10-16 02:18:36,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:18:36,748 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:18:36,762 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-16 02:18:36,797 WARN L228 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_c9e6e179-aa95-48b4-b399-f4e426b70f84/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2021-10-16 02:18:36,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:18:36,854 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:18:36,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:36 WrapperNode [2021-10-16 02:18:36,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:18:36,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:18:36,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:18:36,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:18:36,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:36" (1/1) ... [2021-10-16 02:18:36,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:36" (1/1) ... [2021-10-16 02:18:36,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:18:36,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:18:36,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:18:36,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:18:36,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:36" (1/1) ... [2021-10-16 02:18:36,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:36" (1/1) ... [2021-10-16 02:18:36,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:36" (1/1) ... [2021-10-16 02:18:36,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:36" (1/1) ... [2021-10-16 02:18:36,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:36" (1/1) ... [2021-10-16 02:18:36,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:36" (1/1) ... [2021-10-16 02:18:36,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:36" (1/1) ... [2021-10-16 02:18:36,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:18:36,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:18:37,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:18:37,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:18:37,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:36" (1/1) ... [2021-10-16 02:18:37,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:18:37,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:18:37,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:18:37,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:18:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:18:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:18:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 02:18:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:18:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:18:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:18:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-10-16 02:18:37,092 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-10-16 02:18:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:18:37,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:18:37,094 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 02:18:37,433 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:18:37,434 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-16 02:18:37,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:18:37 BoogieIcfgContainer [2021-10-16 02:18:37,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:18:37,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:18:37,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:18:37,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:18:37,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:18:36" (1/3) ... [2021-10-16 02:18:37,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77acecf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:18:37, skipping insertion in model container [2021-10-16 02:18:37,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:18:36" (2/3) ... [2021-10-16 02:18:37,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77acecf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:18:37, skipping insertion in model container [2021-10-16 02:18:37,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:18:37" (3/3) ... [2021-10-16 02:18:37,461 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2021-10-16 02:18:37,466 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-16 02:18:37,466 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:18:37,467 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:18:37,467 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 02:18:37,509 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,510 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,510 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,510 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,511 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,511 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,511 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,511 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,512 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,512 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,512 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,512 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,513 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,513 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,514 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,514 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,514 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,515 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,515 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,515 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,518 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,519 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,519 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,519 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,520 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,520 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:18:37,528 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-16 02:18:37,573 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:18:37,580 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, mConcurrency=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 [2021-10-16 02:18:37,580 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-16 02:18:37,594 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-16 02:18:37,605 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 68 transitions, 144 flow [2021-10-16 02:18:37,608 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 68 transitions, 144 flow [2021-10-16 02:18:37,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 68 transitions, 144 flow [2021-10-16 02:18:37,651 INFO L129 PetriNetUnfolder]: 3/67 cut-off events. [2021-10-16 02:18:37,651 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 02:18:37,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 67 events. 3/67 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-10-16 02:18:37,665 INFO L116 LiptonReduction]: Number of co-enabled transitions 286 [2021-10-16 02:18:42,386 INFO L131 LiptonReduction]: Checked pairs total: 262 [2021-10-16 02:18:42,387 INFO L133 LiptonReduction]: Total number of compositions: 63 [2021-10-16 02:18:42,395 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 10 transitions, 28 flow [2021-10-16 02:18:42,403 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-10-16 02:18:42,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-10-16 02:18:42,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 02:18:42,409 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:18:42,410 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 02:18:42,410 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:18:42,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:18:42,428 INFO L82 PathProgramCache]: Analyzing trace with hash 253215, now seen corresponding path program 1 times [2021-10-16 02:18:42,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:18:42,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537936989] [2021-10-16 02:18:42,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:18:42,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:18:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:18:42,582 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:18:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:18:42,634 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:18:42,636 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:18:42,638 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:18:42,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 02:18:42,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:18:42,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:18:42,647 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 02:18:42,647 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:18:42,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:18:42 BasicIcfg [2021-10-16 02:18:42,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:18:42,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:18:42,665 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:18:42,665 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:18:42,666 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:18:37" (3/4) ... [2021-10-16 02:18:42,668 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 02:18:42,703 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:18:42,703 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:18:42,706 INFO L168 Benchmark]: Toolchain (without parser) took 6460.55 ms. Allocated memory was 117.4 MB in the beginning and 182.5 MB in the end (delta: 65.0 MB). Free memory was 86.1 MB in the beginning and 144.4 MB in the end (delta: -58.3 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:18:42,706 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 117.4 MB. Free memory is still 72.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:18:42,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.92 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 86.1 MB in the beginning and 116.4 MB in the end (delta: -30.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:18:42,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.42 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 114.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:18:42,708 INFO L168 Benchmark]: Boogie Preprocessor took 56.24 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 113.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:18:42,709 INFO L168 Benchmark]: RCFGBuilder took 441.61 ms. Allocated memory is still 151.0 MB. Free memory was 112.8 MB in the beginning and 100.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:18:42,709 INFO L168 Benchmark]: TraceAbstraction took 5226.29 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 100.5 MB in the beginning and 146.5 MB in the end (delta: -45.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:18:42,710 INFO L168 Benchmark]: Witness Printer took 38.55 ms. Allocated memory is still 182.5 MB. Free memory was 146.5 MB in the beginning and 144.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:18:42,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 117.4 MB. Free memory is still 72.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 607.92 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 86.1 MB in the beginning and 116.4 MB in the end (delta: -30.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.42 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 114.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.24 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 113.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 441.61 ms. Allocated memory is still 151.0 MB. Free memory was 112.8 MB in the beginning and 100.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5226.29 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 100.5 MB in the beginning and 146.5 MB in the end (delta: -45.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 38.55 ms. Allocated memory is still 182.5 MB. Free memory was 146.5 MB in the beginning and 144.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4779.5ms, 69 PlacesBefore, 13 PlacesAfterwards, 68 TransitionsBefore, 10 TransitionsAfterwards, 286 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 63 TotalNumberOfCompositions, 262 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 254, positive: 246, positive conditional: 0, positive unconditional: 246, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 201, positive: 196, positive conditional: 0, positive unconditional: 196, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 201, positive: 196, positive conditional: 0, positive unconditional: 196, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 254, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 201, unknown conditional: 0, unknown unconditional: 201] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; [L698] 0 pthread_cond_t cond; [L699] 0 int x; [L709] 0 pthread_t t; [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={13:0}, lock={9:0}, x=0] [L704] 1 !(x == 42) ? reach_error() : (void)0 [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={13:0}, lock={9:0}, x=0] - UnprovableResult [Line: 712]: 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 3 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 5072.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 6.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4822.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.0ms SsaConstructionTime, 50.5ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-16 02:18:42,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9e6e179-aa95-48b4-b399-f4e426b70f84/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...