./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 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8/config/TaipanReach.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_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8 --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 1cd82b96c01a730247618eab1464d47c03eec9013c1d245312913e94981f2bce --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:06:50,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:06:50,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:06:50,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:06:50,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:06:50,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:06:50,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:06:50,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:06:50,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:06:50,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:06:50,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:06:50,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:06:50,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:06:50,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:06:50,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:06:50,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:06:50,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:06:50,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:06:50,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:06:50,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:06:50,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:06:50,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:06:50,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:06:50,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:06:50,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:06:50,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:06:50,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:06:50,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:06:50,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:06:50,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:06:50,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:06:50,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:06:50,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:06:50,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:06:50,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:06:50,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:06:50,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:06:50,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:06:50,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:06:50,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:06:50,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:06:50,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:06:50,826 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:06:50,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:06:50,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:06:50,828 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:06:50,828 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:06:50,828 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:06:50,828 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:06:50,829 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:06:50,829 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:06:50,829 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:06:50,830 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:06:50,830 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:06:50,831 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:06:50,831 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:06:50,831 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:06:50,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:06:50,832 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:06:50,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:06:50,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:06:50,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:06:50,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:06:50,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:06:50,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:06:50,834 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:06:50,834 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:06:50,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:06:50,834 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:06:50,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:06:50,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:06:50,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:06:50,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:06:50,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:06:50,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:06:50,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:06:50,838 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:06:50,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:06:50,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:06:50,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:06:50,839 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:06:50,839 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cd82b96c01a730247618eab1464d47c03eec9013c1d245312913e94981f2bce [2021-11-07 01:06:51,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:06:51,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:06:51,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:06:51,132 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:06:51,133 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:06:51,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2021-11-07 01:06:51,210 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8/data/67c03f5ef/975598f3f74e406b80e1b320a5950831/FLAGa9990d8f6 [2021-11-07 01:06:51,883 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:06:51,884 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2021-11-07 01:06:51,912 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8/data/67c03f5ef/975598f3f74e406b80e1b320a5950831/FLAGa9990d8f6 [2021-11-07 01:06:52,151 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8/data/67c03f5ef/975598f3f74e406b80e1b320a5950831 [2021-11-07 01:06:52,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:06:52,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:06:52,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:52,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:06:52,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:06:52,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:52" (1/1) ... [2021-11-07 01:06:52,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eeb681e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:52, skipping insertion in model container [2021-11-07 01:06:52,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:52" (1/1) ... [2021-11-07 01:06:52,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:06:52,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:06:52,476 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2021-11-07 01:06:52,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:52,852 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:06:52,865 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2021-11-07 01:06:52,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:52,995 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:06:52,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:52 WrapperNode [2021-11-07 01:06:52,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:52,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:06:52,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:06:52,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:06:53,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:52" (1/1) ... [2021-11-07 01:06:53,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:52" (1/1) ... [2021-11-07 01:06:53,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:06:53,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:06:53,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:06:53,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:06:53,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:52" (1/1) ... [2021-11-07 01:06:53,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:52" (1/1) ... [2021-11-07 01:06:53,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:52" (1/1) ... [2021-11-07 01:06:53,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:52" (1/1) ... [2021-11-07 01:06:53,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:52" (1/1) ... [2021-11-07 01:06:53,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:52" (1/1) ... [2021-11-07 01:06:53,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:52" (1/1) ... [2021-11-07 01:06:53,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:06:53,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:06:53,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:06:53,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:06:53,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:52" (1/1) ... [2021-11-07 01:06:53,150 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:06:53,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:06:53,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:06:53,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:06:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2021-11-07 01:06:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2021-11-07 01:06:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2021-11-07 01:06:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2021-11-07 01:06:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2021-11-07 01:06:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:06:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:06:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 01:06:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 01:06:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-07 01:06:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:06:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:06:53,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:06:53,241 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 01:06:53,813 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:06:53,814 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-07 01:06:53,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:06:53 BoogieIcfgContainer [2021-11-07 01:06:53,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:06:53,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:06:53,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:06:53,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:06:53,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:06:52" (1/3) ... [2021-11-07 01:06:53,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639b0382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:06:53, skipping insertion in model container [2021-11-07 01:06:53,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:52" (2/3) ... [2021-11-07 01:06:53,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639b0382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:06:53, skipping insertion in model container [2021-11-07 01:06:53,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:06:53" (3/3) ... [2021-11-07 01:06:53,825 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2021-11-07 01:06:53,831 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 01:06:53,831 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:06:53,831 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:06:53,831 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 01:06:53,861 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#in~ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,862 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#in~ptr.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,862 WARN L322 ript$VariableManager]: TermVariabe f1Thread1of1ForFork0_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,862 WARN L322 ript$VariableManager]: TermVariabe f1Thread1of1ForFork0_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,862 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#in~ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,862 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#in~ptr.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,863 WARN L322 ript$VariableManager]: TermVariabe f1Thread1of1ForFork0_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,863 WARN L322 ript$VariableManager]: TermVariabe f1Thread1of1ForFork0_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,863 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,863 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,864 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,864 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,864 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,864 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,865 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,865 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,865 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,865 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,866 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,866 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,866 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,866 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,867 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#in~ptr.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,867 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#in~ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,867 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,867 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,868 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#in~ptr.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,868 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#in~ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,868 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,868 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,868 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,869 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,869 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,869 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,869 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,870 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,870 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,870 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,870 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,871 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,871 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,871 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,871 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,871 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,871 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,872 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,872 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,872 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,873 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,873 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,877 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,877 WARN L322 ript$VariableManager]: TermVariabe f1Thread1of1ForFork0_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,877 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,878 WARN L322 ript$VariableManager]: TermVariabe f1Thread1of1ForFork0_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,878 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,878 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,878 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,883 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,883 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,884 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,884 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,884 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,884 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,885 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:06:53,902 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-07 01:06:53,964 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:06:53,973 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:06:53,973 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-07 01:06:54,006 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 01:06:54,022 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 87 transitions, 190 flow [2021-11-07 01:06:54,026 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 87 transitions, 190 flow [2021-11-07 01:06:54,028 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 87 transitions, 190 flow [2021-11-07 01:06:54,096 INFO L129 PetriNetUnfolder]: 1/85 cut-off events. [2021-11-07 01:06:54,096 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-07 01:06:54,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 85 events. 1/85 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2021-11-07 01:06:54,107 INFO L116 LiptonReduction]: Number of co-enabled transitions 804 [2021-11-07 01:07:00,717 INFO L131 LiptonReduction]: Checked pairs total: 2149 [2021-11-07 01:07:00,717 INFO L133 LiptonReduction]: Total number of compositions: 72 [2021-11-07 01:07:00,726 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 23 transitions, 62 flow [2021-11-07 01:07:00,745 INFO L133 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) [2021-11-07 01:07:00,747 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) [2021-11-07 01:07:00,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 01:07:00,754 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:00,755 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 01:07:00,756 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:07:00,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:00,763 INFO L85 PathProgramCache]: Analyzing trace with hash 540141751, now seen corresponding path program 1 times [2021-11-07 01:07:00,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:07:00,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055582142] [2021-11-07 01:07:00,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:00,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:07:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:01,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:07:01,263 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:07:01,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055582142] [2021-11-07 01:07:01,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055582142] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:01,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:01,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-07 01:07:01,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75701233] [2021-11-07 01:07:01,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:07:01,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:07:01,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:07:01,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:07:01,289 INFO L87 Difference]: Start difference. First 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) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:01,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:01,318 INFO L93 Difference]: Finished difference Result 76 states and 144 transitions. [2021-11-07 01:07:01,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:07:01,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-07 01:07:01,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:01,328 INFO L225 Difference]: With dead ends: 76 [2021-11-07 01:07:01,328 INFO L226 Difference]: Without dead ends: 44 [2021-11-07 01:07:01,329 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:07:01,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-07 01:07:01,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-07 01:07:01,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.7906976744186047) internal successors, (77), 43 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:01,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 77 transitions. [2021-11-07 01:07:01,364 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 77 transitions. Word has length 6 [2021-11-07 01:07:01,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:01,364 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 77 transitions. [2021-11-07 01:07:01,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:01,365 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 77 transitions. [2021-11-07 01:07:01,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:07:01,366 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:01,366 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:07:01,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:07:01,367 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:07:01,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:01,368 INFO L85 PathProgramCache]: Analyzing trace with hash -567444984, now seen corresponding path program 1 times [2021-11-07 01:07:01,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:07:01,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398252133] [2021-11-07 01:07:01,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:01,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:07:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:01,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:07:01,466 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:07:01,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398252133] [2021-11-07 01:07:01,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398252133] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:01,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:01,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 01:07:01,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178725462] [2021-11-07 01:07:01,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:07:01,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:07:01,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:07:01,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:07:01,470 INFO L87 Difference]: Start difference. First operand 44 states and 77 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:01,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:01,527 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2021-11-07 01:07:01,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:07:01,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 01:07:01,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:01,528 INFO L225 Difference]: With dead ends: 28 [2021-11-07 01:07:01,528 INFO L226 Difference]: Without dead ends: 22 [2021-11-07 01:07:01,529 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:07:01,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-07 01:07:01,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-07 01:07:01,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:01,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 32 transitions. [2021-11-07 01:07:01,533 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 32 transitions. Word has length 8 [2021-11-07 01:07:01,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:01,533 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 32 transitions. [2021-11-07 01:07:01,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:01,534 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2021-11-07 01:07:01,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:07:01,535 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:01,535 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:07:01,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 01:07:01,535 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION, f2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:07:01,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:01,536 INFO L85 PathProgramCache]: Analyzing trace with hash -411752719, now seen corresponding path program 1 times [2021-11-07 01:07:01,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:07:01,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237274092] [2021-11-07 01:07:01,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:01,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:07:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:07:01,582 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 01:07:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:07:01,635 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 01:07:01,636 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 01:07:01,637 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:07:01,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 01:07:01,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-07 01:07:01,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:07:01,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 01:07:01,642 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-07 01:07:01,646 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 01:07:01,647 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:07:01,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:07:01 BasicIcfg [2021-11-07 01:07:01,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:07:01,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:07:01,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:07:01,678 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:07:01,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:06:53" (3/4) ... [2021-11-07 01:07:01,681 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 01:07:01,726 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:07:01,727 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:07:01,729 INFO L168 Benchmark]: Toolchain (without parser) took 9571.58 ms. Allocated memory was 98.6 MB in the beginning and 155.2 MB in the end (delta: 56.6 MB). Free memory was 60.4 MB in the beginning and 61.1 MB in the end (delta: -682.1 kB). Peak memory consumption was 54.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:07:01,729 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 98.6 MB. Free memory was 69.2 MB in the beginning and 69.1 MB in the end (delta: 30.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:07:01,730 INFO L168 Benchmark]: CACSL2BoogieTranslator took 835.76 ms. Allocated memory is still 98.6 MB. Free memory was 60.1 MB in the beginning and 47.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:07:01,731 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.50 ms. Allocated memory is still 98.6 MB. Free memory was 47.2 MB in the beginning and 44.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:07:01,731 INFO L168 Benchmark]: Boogie Preprocessor took 72.60 ms. Allocated memory is still 98.6 MB. Free memory was 44.7 MB in the beginning and 42.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:07:01,732 INFO L168 Benchmark]: RCFGBuilder took 683.33 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 42.3 MB in the beginning and 87.0 MB in the end (delta: -44.7 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:07:01,732 INFO L168 Benchmark]: TraceAbstraction took 7859.04 ms. Allocated memory was 123.7 MB in the beginning and 155.2 MB in the end (delta: 31.5 MB). Free memory was 87.0 MB in the beginning and 65.3 MB in the end (delta: 21.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:07:01,733 INFO L168 Benchmark]: Witness Printer took 49.30 ms. Allocated memory is still 155.2 MB. Free memory was 65.3 MB in the beginning and 61.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:07:01,736 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 98.6 MB. Free memory was 69.2 MB in the beginning and 69.1 MB in the end (delta: 30.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 835.76 ms. Allocated memory is still 98.6 MB. Free memory was 60.1 MB in the beginning and 47.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.50 ms. Allocated memory is still 98.6 MB. Free memory was 47.2 MB in the beginning and 44.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.60 ms. Allocated memory is still 98.6 MB. Free memory was 44.7 MB in the beginning and 42.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 683.33 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 42.3 MB in the beginning and 87.0 MB in the end (delta: -44.7 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7859.04 ms. Allocated memory was 123.7 MB in the beginning and 155.2 MB in the end (delta: 31.5 MB). Free memory was 87.0 MB in the beginning and 65.3 MB in the end (delta: 21.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 16.1 GB. * Witness Printer took 49.30 ms. Allocated memory is still 155.2 MB. Free memory was 65.3 MB in the beginning and 61.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.6s, 93 PlacesBefore, 29 PlacesAfterwards, 87 TransitionsBefore, 23 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 72 TotalNumberOfCompositions, 2149 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1342, positive: 1226, positive conditional: 0, positive unconditional: 1226, negative: 116, negative conditional: 0, negative unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 667, positive: 631, positive conditional: 0, positive unconditional: 631, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 667, positive: 607, positive conditional: 0, positive unconditional: 607, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 60, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 129, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1342, positive: 595, positive conditional: 0, positive unconditional: 595, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 667, unknown conditional: 0, unknown unconditional: 667] , Statistics on independence cache: Total cache size (in pairs): 109, Positive cache size: 94, Positive conditional cache size: 0, Positive unconditional cache size: 94, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - 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; [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 [cond={10:0}, g=0, mut={9:0}, ptr={0:0}] [L1356] 1 g = 1 VAL [cond={10:0}, g=1, mut={9:0}, ptr={0:0}, ptr={0:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [cond={10:0}, g=1, mut={9:0}, ptr={0:0}, ptr={0:0}] [L19] COND TRUE 2 !(cond) [L19] 2 reach_error() VAL [cond={10:0}, g=1, mut={9:0}, 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, 117 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 7.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.7s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 31 SDtfs, 25 SDslu, 22 SDs, 0 SdLazy, 16 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 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! [2021-11-07 01:07:01,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_316f2b82-6a25-48a5-a455-a1884f6c9b51/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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