./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0 --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 78eedbb170ccb94e306b53f35c5dd71f86d003c1abe4d157fc2c720e38b8df88 --- 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-e04fb08 [2022-11-16 15:58:41,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 15:58:41,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 15:58:41,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 15:58:41,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 15:58:41,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 15:58:41,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 15:58:41,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 15:58:41,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 15:58:41,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 15:58:41,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 15:58:41,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 15:58:41,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 15:58:41,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 15:58:41,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 15:58:41,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 15:58:41,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 15:58:41,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 15:58:41,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 15:58:41,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 15:58:41,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 15:58:41,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 15:58:41,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 15:58:41,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 15:58:41,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 15:58:41,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 15:58:41,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 15:58:41,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 15:58:41,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 15:58:41,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 15:58:41,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 15:58:41,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 15:58:41,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 15:58:41,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 15:58:41,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 15:58:41,922 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 15:58:41,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 15:58:41,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 15:58:41,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 15:58:41,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 15:58:41,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 15:58:41,931 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 15:58:41,970 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 15:58:41,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 15:58:41,971 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 15:58:41,971 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 15:58:41,972 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 15:58:41,973 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 15:58:41,973 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 15:58:41,973 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 15:58:41,973 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 15:58:41,974 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 15:58:41,975 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 15:58:41,975 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 15:58:41,975 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 15:58:41,975 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 15:58:41,976 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 15:58:41,976 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 15:58:41,976 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 15:58:41,976 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 15:58:41,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 15:58:41,978 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 15:58:41,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 15:58:41,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 15:58:41,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 15:58:41,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 15:58:41,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 15:58:41,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 15:58:41,980 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 15:58:41,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 15:58:41,981 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 15:58:41,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 15:58:41,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 15:58:41,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 15:58:41,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:58:41,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 15:58:41,982 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 15:58:41,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 15:58:41,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 15:58:41,983 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 15:58:41,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 15:58:41,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 15:58:41,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 15:58:41,984 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78eedbb170ccb94e306b53f35c5dd71f86d003c1abe4d157fc2c720e38b8df88 [2022-11-16 15:58:42,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 15:58:42,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 15:58:42,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 15:58:42,321 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 15:58:42,322 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 15:58:42,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-11-16 15:58:42,391 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0/data/59a8605d3/07b97c50d32c41408dddca2390f64184/FLAG997b1b049 [2022-11-16 15:58:42,929 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 15:58:42,930 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-11-16 15:58:42,950 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0/data/59a8605d3/07b97c50d32c41408dddca2390f64184/FLAG997b1b049 [2022-11-16 15:58:43,214 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0/data/59a8605d3/07b97c50d32c41408dddca2390f64184 [2022-11-16 15:58:43,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 15:58:43,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 15:58:43,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 15:58:43,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 15:58:43,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 15:58:43,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:58:43" (1/1) ... [2022-11-16 15:58:43,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75ade68a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:43, skipping insertion in model container [2022-11-16 15:58:43,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:58:43" (1/1) ... [2022-11-16 15:58:43,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 15:58:43,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 15:58:43,520 WARN L229 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_4f23d9f1-224a-433c-870d-0d35f87398b0/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i[1103,1116] [2022-11-16 15:58:43,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:58:43,855 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 15:58:43,869 WARN L229 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_4f23d9f1-224a-433c-870d-0d35f87398b0/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i[1103,1116] [2022-11-16 15:58:43,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:58:44,025 INFO L208 MainTranslator]: Completed translation [2022-11-16 15:58:44,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:44 WrapperNode [2022-11-16 15:58:44,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 15:58:44,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 15:58:44,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 15:58:44,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 15:58:44,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:44" (1/1) ... [2022-11-16 15:58:44,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:44" (1/1) ... [2022-11-16 15:58:44,081 INFO L138 Inliner]: procedures = 354, calls = 47, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2022-11-16 15:58:44,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 15:58:44,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 15:58:44,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 15:58:44,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 15:58:44,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:44" (1/1) ... [2022-11-16 15:58:44,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:44" (1/1) ... [2022-11-16 15:58:44,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:44" (1/1) ... [2022-11-16 15:58:44,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:44" (1/1) ... [2022-11-16 15:58:44,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:44" (1/1) ... [2022-11-16 15:58:44,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:44" (1/1) ... [2022-11-16 15:58:44,116 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:44" (1/1) ... [2022-11-16 15:58:44,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:44" (1/1) ... [2022-11-16 15:58:44,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 15:58:44,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 15:58:44,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 15:58:44,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 15:58:44,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:44" (1/1) ... [2022-11-16 15:58:44,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:58:44,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:58:44,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 15:58:44,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 15:58:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-16 15:58:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-11-16 15:58:44,230 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-11-16 15:58:44,230 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-11-16 15:58:44,230 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-11-16 15:58:44,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 15:58:44,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 15:58:44,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 15:58:44,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 15:58:44,230 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 15:58:44,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 15:58:44,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 15:58:44,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 15:58:44,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 15:58:44,232 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 15:58:44,603 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 15:58:44,606 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 15:58:44,797 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 15:58:44,805 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 15:58:44,805 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 15:58:44,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:58:44 BoogieIcfgContainer [2022-11-16 15:58:44,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 15:58:44,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 15:58:44,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 15:58:44,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 15:58:44,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:58:43" (1/3) ... [2022-11-16 15:58:44,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a01834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:58:44, skipping insertion in model container [2022-11-16 15:58:44,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:58:44" (2/3) ... [2022-11-16 15:58:44,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a01834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:58:44, skipping insertion in model container [2022-11-16 15:58:44,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:58:44" (3/3) ... [2022-11-16 15:58:44,827 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-11-16 15:58:44,836 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 15:58:44,847 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 15:58:44,847 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 15:58:44,849 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 15:58:44,903 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 15:58:44,935 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 15:58:44,950 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 103 transitions, 222 flow [2022-11-16 15:58:44,953 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 103 transitions, 222 flow [2022-11-16 15:58:44,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 103 transitions, 222 flow [2022-11-16 15:58:45,073 INFO L130 PetriNetUnfolder]: 1/101 cut-off events. [2022-11-16 15:58:45,073 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 15:58:45,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 101 events. 1/101 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. 0/99 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2022-11-16 15:58:45,080 INFO L119 LiptonReduction]: Number of co-enabled transitions 876 [2022-11-16 15:58:50,914 INFO L134 LiptonReduction]: Checked pairs total: 2379 [2022-11-16 15:58:50,914 INFO L136 LiptonReduction]: Total number of compositions: 89 [2022-11-16 15:58:50,923 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 23 transitions, 62 flow [2022-11-16 15:58:50,941 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 80 states, 78 states have (on average 2.051282051282051) internal successors, (160), 79 states have internal predecessors, (160), 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) [2022-11-16 15:58:50,960 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 15:58:50,966 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@56dd377e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 15:58:50,967 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-16 15:58:50,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 78 states have (on average 2.051282051282051) internal successors, (160), 79 states have internal predecessors, (160), 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) [2022-11-16 15:58:50,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 15:58:50,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:58:50,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 15:58:50,976 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 15:58:50,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:58:50,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1975506086, now seen corresponding path program 1 times [2022-11-16 15:58:50,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:58:50,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257838755] [2022-11-16 15:58:50,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:58:50,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:58:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 15:58:51,229 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 15:58:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 15:58:51,327 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-16 15:58:51,329 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 15:58:51,331 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-11-16 15:58:51,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-16 15:58:51,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-16 15:58:51,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-11-16 15:58:51,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 15:58:51,337 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-16 15:58:51,343 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 15:58:51,344 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 15:58:51,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:58:51 BasicIcfg [2022-11-16 15:58:51,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 15:58:51,389 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 15:58:51,389 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 15:58:51,390 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 15:58:51,390 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:58:44" (3/4) ... [2022-11-16 15:58:51,392 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-16 15:58:51,457 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 15:58:51,461 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 15:58:51,463 INFO L158 Benchmark]: Toolchain (without parser) took 8244.76ms. Allocated memory was 111.1MB in the beginning and 169.9MB in the end (delta: 58.7MB). Free memory was 72.9MB in the beginning and 130.4MB in the end (delta: -57.5MB). Peak memory consumption was 613.4kB. Max. memory is 16.1GB. [2022-11-16 15:58:51,463 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 111.1MB. Free memory was 81.3MB in the beginning and 81.2MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 15:58:51,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 806.59ms. Allocated memory is still 111.1MB. Free memory was 72.7MB in the beginning and 59.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 15:58:51,465 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.11ms. Allocated memory is still 111.1MB. Free memory was 59.1MB in the beginning and 56.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 15:58:51,465 INFO L158 Benchmark]: Boogie Preprocessor took 40.63ms. Allocated memory is still 111.1MB. Free memory was 56.5MB in the beginning and 53.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 15:58:51,466 INFO L158 Benchmark]: RCFGBuilder took 684.06ms. Allocated memory is still 111.1MB. Free memory was 53.9MB in the beginning and 81.1MB in the end (delta: -27.2MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2022-11-16 15:58:51,466 INFO L158 Benchmark]: TraceAbstraction took 6578.38ms. Allocated memory was 111.1MB in the beginning and 169.9MB in the end (delta: 58.7MB). Free memory was 80.5MB in the beginning and 133.6MB in the end (delta: -53.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-11-16 15:58:51,469 INFO L158 Benchmark]: Witness Printer took 72.36ms. Allocated memory is still 169.9MB. Free memory was 133.6MB in the beginning and 130.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 15:58:51,472 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 111.1MB. Free memory was 81.3MB in the beginning and 81.2MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 806.59ms. Allocated memory is still 111.1MB. Free memory was 72.7MB in the beginning and 59.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.11ms. Allocated memory is still 111.1MB. Free memory was 59.1MB in the beginning and 56.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.63ms. Allocated memory is still 111.1MB. Free memory was 56.5MB in the beginning and 53.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 684.06ms. Allocated memory is still 111.1MB. Free memory was 53.9MB in the beginning and 81.1MB in the end (delta: -27.2MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 6578.38ms. Allocated memory was 111.1MB in the beginning and 169.9MB in the end (delta: 58.7MB). Free memory was 80.5MB in the beginning and 133.6MB in the end (delta: -53.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Witness Printer took 72.36ms. Allocated memory is still 169.9MB. Free memory was 133.6MB in the beginning and 130.4MB 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: 6.0s, 109 PlacesBefore, 29 PlacesAfterwards, 103 TransitionsBefore, 23 TransitionsAfterwards, 876 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 89 TotalNumberOfCompositions, 2379 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1491, independent: 1356, independent conditional: 0, independent unconditional: 1356, dependent: 135, dependent conditional: 0, dependent unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 703, independent: 671, independent conditional: 0, independent unconditional: 671, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 703, independent: 651, independent conditional: 0, independent unconditional: 651, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 52, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 123, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1491, independent: 685, independent conditional: 0, independent unconditional: 685, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 703, unknown conditional: 0, unknown unconditional: 703] , Statistics on independence cache: Total cache size (in pairs): 107, Positive cache size: 92, Positive conditional cache size: 0, Positive unconditional cache size: 92, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 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={1151:1150}, argv={1151:1150}, cond={4:0}, g=0, mut={5:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=0, ptr={0:0}, t1={9:0}, t2={10:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1151:1150}, argv={1151:1150}, cond={4:0}, g=0, mut={5:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=1, ptr={0:0}, t1={9:0}, t2={10:0}] [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=0, mut={5:0}, 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, 135 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-16 15:58:51,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23d9f1-224a-433c-870d-0d35f87398b0/bin/utaipan-Xvt2sAort0/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