./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.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_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1cd82b96c01a730247618eab1464d47c03eec9013c1d245312913e94981f2bce --- 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 [2022-12-13 14:18:11,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:18:11,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:18:11,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:18:11,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:18:11,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:18:11,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:18:11,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:18:11,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:18:11,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:18:11,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:18:11,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:18:11,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:18:11,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:18:11,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:18:11,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:18:11,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:18:11,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:18:11,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:18:11,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:18:11,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:18:11,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:18:11,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:18:11,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:18:11,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:18:11,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:18:11,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:18:11,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:18:11,883 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:18:11,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:18:11,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:18:11,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:18:11,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:18:11,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:18:11,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:18:11,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:18:11,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:18:11,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:18:11,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:18:11,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:18:11,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:18:11,889 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 14:18:11,902 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:18:11,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:18:11,903 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:18:11,903 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:18:11,903 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:18:11,903 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:18:11,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:18:11,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:18:11,904 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:18:11,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:18:11,904 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:18:11,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:18:11,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:18:11,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:18:11,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:18:11,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:18:11,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:18:11,911 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:18:11,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:18:11,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:18:11,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:18:11,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:18:11,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:18:11,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:18:11,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:18:11,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:18:11,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:18:11,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:18:11,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:18:11,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:18:11,914 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:18:11,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:18:11,914 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:18:11,914 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:18:11,914 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:18:11,914 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cd82b96c01a730247618eab1464d47c03eec9013c1d245312913e94981f2bce [2022-12-13 14:18:12,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:18:12,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:18:12,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:18:12,108 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:18:12,109 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:18:12,110 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-12-13 14:18:14,567 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:18:14,761 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:18:14,762 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b47f2ab-e0d9-4540-8250-07ee5160b11c/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-12-13 14:18:14,772 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8/data/2dfc1b82e/2dd54a9600614327b03bee191385ec5b/FLAG871a00762 [2022-12-13 14:18:15,114 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8/data/2dfc1b82e/2dd54a9600614327b03bee191385ec5b [2022-12-13 14:18:15,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:18:15,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:18:15,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:18:15,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:18:15,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:18:15,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:18:15" (1/1) ... [2022-12-13 14:18:15,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec77f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:18:15, skipping insertion in model container [2022-12-13 14:18:15,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:18:15" (1/1) ... [2022-12-13 14:18:15,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:18:15,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:18:15,265 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_7b47f2ab-e0d9-4540-8250-07ee5160b11c/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-12-13 14:18:15,478 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 14:18:15,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:18:15,489 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:18:15,497 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_7b47f2ab-e0d9-4540-8250-07ee5160b11c/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-12-13 14:18:15,521 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 14:18:15,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:18:15,566 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:18:15,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:18:15 WrapperNode [2022-12-13 14:18:15,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:18:15,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:18:15,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:18:15,568 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:18:15,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:18:15" (1/1) ... [2022-12-13 14:18:15,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:18:15" (1/1) ... [2022-12-13 14:18:15,604 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-12-13 14:18:15,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:18:15,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:18:15,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:18:15,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:18:15,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:18:15" (1/1) ... [2022-12-13 14:18:15,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:18:15" (1/1) ... [2022-12-13 14:18:15,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:18:15" (1/1) ... [2022-12-13 14:18:15,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:18:15" (1/1) ... [2022-12-13 14:18:15,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:18:15" (1/1) ... [2022-12-13 14:18:15,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:18:15" (1/1) ... [2022-12-13 14:18:15,626 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:18:15" (1/1) ... [2022-12-13 14:18:15,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:18:15" (1/1) ... [2022-12-13 14:18:15,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:18:15,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:18:15,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:18:15,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:18:15,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:18:15" (1/1) ... [2022-12-13 14:18:15,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:18:15,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:18:15,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:18:15,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:18:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-12-13 14:18:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-12-13 14:18:15,691 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-12-13 14:18:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-12-13 14:18:15,692 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-12-13 14:18:15,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:18:15,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:18:15,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 14:18:15,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:18:15,692 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 14:18:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:18:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:18:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:18:15,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:18:15,695 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 14:18:15,914 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:18:15,916 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:18:16,066 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:18:16,071 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:18:16,071 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:18:16,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:18:16 BoogieIcfgContainer [2022-12-13 14:18:16,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:18:16,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:18:16,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:18:16,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:18:16,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:18:15" (1/3) ... [2022-12-13 14:18:16,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72452778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:18:16, skipping insertion in model container [2022-12-13 14:18:16,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:18:15" (2/3) ... [2022-12-13 14:18:16,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72452778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:18:16, skipping insertion in model container [2022-12-13 14:18:16,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:18:16" (3/3) ... [2022-12-13 14:18:16,080 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-12-13 14:18:16,087 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 14:18:16,094 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:18:16,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 14:18:16,095 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 14:18:16,137 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 14:18:16,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 94 transitions, 204 flow [2022-12-13 14:18:16,194 INFO L130 PetriNetUnfolder]: 1/92 cut-off events. [2022-12-13 14:18:16,194 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 14:18:16,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 92 events. 1/92 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2022-12-13 14:18:16,198 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 94 transitions, 204 flow [2022-12-13 14:18:16,200 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 74 transitions, 157 flow [2022-12-13 14:18:16,203 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 14:18:16,211 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 74 transitions, 157 flow [2022-12-13 14:18:16,213 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 74 transitions, 157 flow [2022-12-13 14:18:16,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 74 transitions, 157 flow [2022-12-13 14:18:16,228 INFO L130 PetriNetUnfolder]: 0/74 cut-off events. [2022-12-13 14:18:16,228 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 14:18:16,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 74 events. 0/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-13 14:18:16,229 INFO L119 LiptonReduction]: Number of co-enabled transitions 588 [2022-12-13 14:18:19,033 INFO L134 LiptonReduction]: Checked pairs total: 1141 [2022-12-13 14:18:19,033 INFO L136 LiptonReduction]: Total number of compositions: 59 [2022-12-13 14:18:19,046 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:18:19,051 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=PETRI_NET, 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;@2c49e47b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:18:19,052 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 14:18:19,055 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-13 14:18:19,056 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:18:19,056 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:18:19,056 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 14:18:19,057 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:18:19,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:19,060 INFO L85 PathProgramCache]: Analyzing trace with hash 640791037, now seen corresponding path program 1 times [2022-12-13 14:18:19,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:18:19,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640652180] [2022-12-13 14:18:19,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:19,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:18:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:19,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:18:19,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:18:19,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640652180] [2022-12-13 14:18:19,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640652180] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:19,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:18:19,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 14:18:19,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230783663] [2022-12-13 14:18:19,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:19,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:18:19,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:18:19,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:18:19,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:18:19,408 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 153 [2022-12-13 14:18:19,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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) [2022-12-13 14:18:19,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:18:19,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 153 [2022-12-13 14:18:19,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:18:19,462 INFO L130 PetriNetUnfolder]: 39/96 cut-off events. [2022-12-13 14:18:19,462 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 14:18:19,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 96 events. 39/96 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 266 event pairs, 25 based on Foata normal form. 10/106 useless extension candidates. Maximal degree in co-relation 178. Up to 58 conditions per place. [2022-12-13 14:18:19,464 INFO L137 encePairwiseOnDemand]: 149/153 looper letters, 15 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2022-12-13 14:18:19,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 86 flow [2022-12-13 14:18:19,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:18:19,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:18:19,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2022-12-13 14:18:19,474 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5904139433551199 [2022-12-13 14:18:19,475 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2022-12-13 14:18:19,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2022-12-13 14:18:19,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:18:19,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2022-12-13 14:18:19,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2022-12-13 14:18:19,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-12-13 14:18:19,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-12-13 14:18:19,485 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 39 flow. Second operand 3 states and 271 transitions. [2022-12-13 14:18:19,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 86 flow [2022-12-13 14:18:19,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 19 transitions, 80 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 14:18:19,488 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 45 flow [2022-12-13 14:18:19,490 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=45, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2022-12-13 14:18:19,492 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2022-12-13 14:18:19,493 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 45 flow [2022-12-13 14:18:19,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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) [2022-12-13 14:18:19,493 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:18:19,493 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:19,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:18:19,493 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:18:19,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:19,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1644641432, now seen corresponding path program 1 times [2022-12-13 14:18:19,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:18:19,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933282499] [2022-12-13 14:18:19,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:19,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:18:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:18:19,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:18:19,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:18:19,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933282499] [2022-12-13 14:18:19,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933282499] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:18:19,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:18:19,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:18:19,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061801056] [2022-12-13 14:18:19,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:18:19,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:18:19,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:18:19,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:18:19,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:18:19,624 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 153 [2022-12-13 14:18:19,624 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2022-12-13 14:18:19,624 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:18:19,624 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 153 [2022-12-13 14:18:19,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:18:19,671 INFO L130 PetriNetUnfolder]: 24/65 cut-off events. [2022-12-13 14:18:19,671 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 14:18:19,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 65 events. 24/65 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 151 event pairs, 6 based on Foata normal form. 14/79 useless extension candidates. Maximal degree in co-relation 54. Up to 44 conditions per place. [2022-12-13 14:18:19,672 INFO L137 encePairwiseOnDemand]: 148/153 looper letters, 10 selfloop transitions, 3 changer transitions 7/20 dead transitions. [2022-12-13 14:18:19,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 20 transitions, 98 flow [2022-12-13 14:18:19,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:18:19,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:18:19,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2022-12-13 14:18:19,674 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.579520697167756 [2022-12-13 14:18:19,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2022-12-13 14:18:19,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2022-12-13 14:18:19,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:18:19,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2022-12-13 14:18:19,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2022-12-13 14:18:19,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-12-13 14:18:19,678 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-12-13 14:18:19,678 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 45 flow. Second operand 3 states and 266 transitions. [2022-12-13 14:18:19,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 20 transitions, 98 flow [2022-12-13 14:18:19,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 20 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 14:18:19,679 INFO L231 Difference]: Finished difference. Result has 22 places, 10 transitions, 33 flow [2022-12-13 14:18:19,679 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=22, PETRI_TRANSITIONS=10} [2022-12-13 14:18:19,680 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2022-12-13 14:18:19,680 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 10 transitions, 33 flow [2022-12-13 14:18:19,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2022-12-13 14:18:19,680 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:18:19,681 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:18:19,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:18:19,681 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:18:19,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:18:19,682 INFO L85 PathProgramCache]: Analyzing trace with hash -549326965, now seen corresponding path program 1 times [2022-12-13 14:18:19,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:18:19,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757159172] [2022-12-13 14:18:19,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:18:19,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:18:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:18:19,713 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:18:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:18:19,748 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:18:19,748 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 14:18:19,749 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 14:18:19,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 14:18:19,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 14:18:19,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-13 14:18:19,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:18:19,752 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 14:18:19,759 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 14:18:19,759 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:18:19,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:18:19 BasicIcfg [2022-12-13 14:18:19,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:18:19,784 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:18:19,784 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:18:19,784 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:18:19,784 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:18:16" (3/4) ... [2022-12-13 14:18:19,786 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 14:18:19,823 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:18:19,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:18:19,824 INFO L158 Benchmark]: Toolchain (without parser) took 4707.52ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 105.7MB in the beginning and 112.4MB in the end (delta: -6.7MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2022-12-13 14:18:19,824 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 140.5MB. Free memory was 109.4MB in the beginning and 109.2MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:18:19,825 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.89ms. Allocated memory is still 140.5MB. Free memory was 105.7MB in the beginning and 67.6MB in the end (delta: 38.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-12-13 14:18:19,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.96ms. Allocated memory is still 140.5MB. Free memory was 67.6MB in the beginning and 64.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:18:19,825 INFO L158 Benchmark]: Boogie Preprocessor took 26.04ms. Allocated memory is still 140.5MB. Free memory was 64.9MB in the beginning and 62.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:18:19,826 INFO L158 Benchmark]: RCFGBuilder took 441.88ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 62.5MB in the beginning and 133.3MB in the end (delta: -70.8MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2022-12-13 14:18:19,826 INFO L158 Benchmark]: TraceAbstraction took 3708.04ms. Allocated memory is still 169.9MB. Free memory was 132.2MB in the beginning and 115.6MB in the end (delta: 16.6MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2022-12-13 14:18:19,827 INFO L158 Benchmark]: Witness Printer took 39.76ms. Allocated memory is still 169.9MB. Free memory was 115.6MB in the beginning and 112.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:18:19,829 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 140.5MB. Free memory was 109.4MB in the beginning and 109.2MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 449.89ms. Allocated memory is still 140.5MB. Free memory was 105.7MB in the beginning and 67.6MB in the end (delta: 38.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.96ms. Allocated memory is still 140.5MB. Free memory was 67.6MB in the beginning and 64.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.04ms. Allocated memory is still 140.5MB. Free memory was 64.9MB in the beginning and 62.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 441.88ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 62.5MB in the beginning and 133.3MB in the end (delta: -70.8MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3708.04ms. Allocated memory is still 169.9MB. Free memory was 132.2MB in the beginning and 115.6MB in the end (delta: 16.6MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Witness Printer took 39.76ms. Allocated memory is still 169.9MB. Free memory was 115.6MB in the beginning and 112.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 81 PlacesBefore, 22 PlacesAfterwards, 74 TransitionsBefore, 15 TransitionsAfterwards, 588 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, 1141 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 721, independent: 626, independent conditional: 0, independent unconditional: 626, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 320, independent: 300, independent conditional: 0, independent unconditional: 300, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 721, independent: 326, independent conditional: 0, independent unconditional: 326, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 320, unknown conditional: 0, unknown unconditional: 320] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1150:1151}, argv={1150:1151}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-1, ptr={0:0}, t1={6:0}, t2={5:0}] [L1356] 1 g = 1 VAL [cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1150:1151}, argv={1150:1151}, cond={4:0}, g=1, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=0, ptr={0:0}, ptr={0:0}, t1={6:0}, t2={5:0}] [L1365] CALL 2 __VERIFIER_assert(g == 0) [L19] COND TRUE 2 !(cond) [L19] 2 reach_error() VAL [\old(cond)=0, cond=0, cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: 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: 1377]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 126 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 5 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 14:18:19,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b47f2ab-e0d9-4540-8250-07ee5160b11c/bin/uautomizer-uyxdKDjOR8/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