./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:38:19,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:38:19,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:38:19,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:38:19,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:38:19,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:38:19,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:38:19,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:38:19,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:38:19,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:38:19,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:38:19,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:38:19,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:38:19,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:38:19,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:38:19,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:38:19,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:38:19,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:38:19,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:38:19,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:38:19,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:38:19,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:38:19,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:38:19,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:38:19,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:38:19,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:38:19,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:38:19,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:38:19,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:38:19,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:38:19,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:38:19,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:38:19,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:38:19,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:38:19,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:38:19,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:38:19,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:38:19,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:38:19,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:38:19,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:38:19,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:38:19,713 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 13:38:19,736 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:38:19,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:38:19,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:38:19,737 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:38:19,737 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:38:19,737 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:38:19,738 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:38:19,738 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:38:19,738 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:38:19,738 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:38:19,738 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:38:19,739 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:38:19,739 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:38:19,739 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:38:19,739 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:38:19,739 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:38:19,740 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:38:19,740 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:38:19,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 13:38:19,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 13:38:19,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:38:19,741 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:38:19,741 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:38:19,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:38:19,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:38:19,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:38:19,742 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 13:38:19,742 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 13:38:19,742 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 13:38:19,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:38:19,743 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:38:19,743 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:38:19,743 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:38:19,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:38:19,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:38:19,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:38:19,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:38:19,744 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:38:19,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:38:19,744 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:38:19,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:38:19,745 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:38:19,745 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_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d [2022-12-14 13:38:19,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:38:19,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:38:19,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:38:19,960 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:38:19,961 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:38:19,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2022-12-14 13:38:22,396 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:38:22,580 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:38:22,580 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2022-12-14 13:38:22,589 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/data/e354095bd/4baf87a88a4140919a6d7c50d185d15f/FLAG36395776d [2022-12-14 13:38:22,967 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/data/e354095bd/4baf87a88a4140919a6d7c50d185d15f [2022-12-14 13:38:22,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:38:22,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:38:22,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:38:22,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:38:22,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:38:22,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:38:22" (1/1) ... [2022-12-14 13:38:22,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b9c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:22, skipping insertion in model container [2022-12-14 13:38:22,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:38:22" (1/1) ... [2022-12-14 13:38:22,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:38:23,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:38:23,111 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2022-12-14 13:38:23,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:38:23,203 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:38:23,211 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2022-12-14 13:38:23,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:38:23,255 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:38:23,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:23 WrapperNode [2022-12-14 13:38:23,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:38:23,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:38:23,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:38:23,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:38:23,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:23" (1/1) ... [2022-12-14 13:38:23,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:23" (1/1) ... [2022-12-14 13:38:23,284 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-12-14 13:38:23,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:38:23,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:38:23,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:38:23,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:38:23,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:23" (1/1) ... [2022-12-14 13:38:23,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:23" (1/1) ... [2022-12-14 13:38:23,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:23" (1/1) ... [2022-12-14 13:38:23,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:23" (1/1) ... [2022-12-14 13:38:23,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:23" (1/1) ... [2022-12-14 13:38:23,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:23" (1/1) ... [2022-12-14 13:38:23,299 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:23" (1/1) ... [2022-12-14 13:38:23,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:23" (1/1) ... [2022-12-14 13:38:23,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:38:23,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:38:23,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:38:23,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:38:23,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:23" (1/1) ... [2022-12-14 13:38:23,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:38:23,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:38:23,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:38:23,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:38:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:38:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:38:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 13:38:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:38:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:38:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 13:38:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 13:38:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:38:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:38:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:38:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:38:23,364 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 13:38:23,458 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:38:23,459 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:38:23,589 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:38:23,596 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:38:23,596 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:38:23,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:38:23 BoogieIcfgContainer [2022-12-14 13:38:23,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:38:23,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:38:23,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:38:23,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:38:23,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:38:22" (1/3) ... [2022-12-14 13:38:23,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5126ab22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:38:23, skipping insertion in model container [2022-12-14 13:38:23,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:23" (2/3) ... [2022-12-14 13:38:23,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5126ab22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:38:23, skipping insertion in model container [2022-12-14 13:38:23,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:38:23" (3/3) ... [2022-12-14 13:38:23,607 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2022-12-14 13:38:23,625 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:38:23,625 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 13:38:23,625 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 13:38:23,680 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-14 13:38:23,709 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 13:38:23,721 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 79 transitions, 166 flow [2022-12-14 13:38:23,723 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 79 transitions, 166 flow [2022-12-14 13:38:23,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 166 flow [2022-12-14 13:38:23,756 INFO L130 PetriNetUnfolder]: 1/78 cut-off events. [2022-12-14 13:38:23,756 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-14 13:38:23,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 78 events. 1/78 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-12-14 13:38:23,760 INFO L119 LiptonReduction]: Number of co-enabled transitions 504 [2022-12-14 13:38:26,057 INFO L134 LiptonReduction]: Checked pairs total: 1592 [2022-12-14 13:38:26,057 INFO L136 LiptonReduction]: Total number of compositions: 76 [2022-12-14 13:38:26,062 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 22 transitions, 52 flow [2022-12-14 13:38:26,072 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:26,084 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:38:26,088 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@2b3d28ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:38:26,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-14 13:38:26,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:26,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 13:38:26,093 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:38:26,093 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 13:38:26,094 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-12-14 13:38:26,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:38:26,097 INFO L85 PathProgramCache]: Analyzing trace with hash 284, now seen corresponding path program 1 times [2022-12-14 13:38:26,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:38:26,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970055363] [2022-12-14 13:38:26,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:38:26,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:38:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:38:26,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:38:26,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:38:26,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970055363] [2022-12-14 13:38:26,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970055363] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:38:26,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:38:26,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 13:38:26,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596949758] [2022-12-14 13:38:26,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:38:26,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:38:26,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:38:26,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:38:26,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:38:26,202 INFO L87 Difference]: Start difference. First operand has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:26,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:38:26,235 INFO L93 Difference]: Finished difference Result 67 states and 114 transitions. [2022-12-14 13:38:26,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:38:26,237 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-12-14 13:38:26,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:38:26,245 INFO L225 Difference]: With dead ends: 67 [2022-12-14 13:38:26,245 INFO L226 Difference]: Without dead ends: 67 [2022-12-14 13:38:26,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:38:26,249 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:38:26,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:38:26,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-12-14 13:38:26,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-12-14 13:38:26,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 63 states have (on average 1.8095238095238095) internal successors, (114), 66 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:26,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 114 transitions. [2022-12-14 13:38:26,285 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 114 transitions. Word has length 1 [2022-12-14 13:38:26,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:38:26,285 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 114 transitions. [2022-12-14 13:38:26,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:26,286 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 114 transitions. [2022-12-14 13:38:26,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 13:38:26,286 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:38:26,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 13:38:26,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:38:26,287 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-12-14 13:38:26,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:38:26,287 INFO L85 PathProgramCache]: Analyzing trace with hash 8668989, now seen corresponding path program 1 times [2022-12-14 13:38:26,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:38:26,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450534380] [2022-12-14 13:38:26,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:38:26,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:38:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:38:26,327 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:38:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:38:26,362 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:38:26,363 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:38:26,364 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2022-12-14 13:38:26,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-12-14 13:38:26,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-12-14 13:38:26,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-12-14 13:38:26,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-12-14 13:38:26,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-12-14 13:38:26,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2022-12-14 13:38:26,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:38:26,370 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 13:38:26,374 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 13:38:26,374 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:38:26,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:38:26 BasicIcfg [2022-12-14 13:38:26,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:38:26,390 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:38:26,390 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:38:26,390 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:38:26,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:38:23" (3/4) ... [2022-12-14 13:38:26,393 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:38:26,394 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:38:26,394 INFO L158 Benchmark]: Toolchain (without parser) took 3424.22ms. Allocated memory is still 157.3MB. Free memory was 120.0MB in the beginning and 51.4MB in the end (delta: 68.6MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. [2022-12-14 13:38:26,395 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 113.2MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:38:26,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.85ms. Allocated memory is still 157.3MB. Free memory was 120.0MB in the beginning and 101.2MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 13:38:26,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.25ms. Allocated memory is still 157.3MB. Free memory was 101.2MB in the beginning and 99.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:38:26,396 INFO L158 Benchmark]: Boogie Preprocessor took 16.82ms. Allocated memory is still 157.3MB. Free memory was 99.1MB in the beginning and 97.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:38:26,396 INFO L158 Benchmark]: RCFGBuilder took 295.90ms. Allocated memory is still 157.3MB. Free memory was 97.6MB in the beginning and 84.0MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 13:38:26,397 INFO L158 Benchmark]: TraceAbstraction took 2789.16ms. Allocated memory is still 157.3MB. Free memory was 83.5MB in the beginning and 51.4MB in the end (delta: 32.0MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2022-12-14 13:38:26,397 INFO L158 Benchmark]: Witness Printer took 3.49ms. Allocated memory is still 157.3MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:38:26,399 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 113.2MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.85ms. Allocated memory is still 157.3MB. Free memory was 120.0MB in the beginning and 101.2MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.25ms. Allocated memory is still 157.3MB. Free memory was 101.2MB in the beginning and 99.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.82ms. Allocated memory is still 157.3MB. Free memory was 99.1MB in the beginning and 97.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 295.90ms. Allocated memory is still 157.3MB. Free memory was 97.6MB in the beginning and 84.0MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2789.16ms. Allocated memory is still 157.3MB. Free memory was 83.5MB in the beginning and 51.4MB in the end (delta: 32.0MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * Witness Printer took 3.49ms. Allocated memory is still 157.3MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 82 PlacesBefore, 26 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 6 FixpointIterations, 53 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 1592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 934, independent: 784, independent conditional: 0, independent unconditional: 784, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 453, independent: 409, independent conditional: 0, independent unconditional: 409, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 453, independent: 381, independent conditional: 0, independent unconditional: 381, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 72, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 143, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 934, independent: 375, independent conditional: 0, independent unconditional: 375, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 453, unknown conditional: 0, unknown unconditional: 453] , Statistics on independence cache: Total cache size (in pairs): 75, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, 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 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={6:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L699] CALL 0 __VERIFIER_assert(glob1 == 5) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 95 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 13:38:26,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:38:28,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:38:28,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:38:28,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:38:28,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:38:28,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:38:28,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:38:28,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:38:28,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:38:28,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:38:28,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:38:28,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:38:28,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:38:28,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:38:28,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:38:28,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:38:28,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:38:28,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:38:28,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:38:28,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:38:28,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:38:28,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:38:28,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:38:28,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:38:28,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:38:28,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:38:28,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:38:28,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:38:28,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:38:28,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:38:28,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:38:28,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:38:28,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:38:28,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:38:28,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:38:28,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:38:28,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:38:28,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:38:28,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:38:28,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:38:28,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:38:28,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 13:38:28,346 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:38:28,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:38:28,347 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:38:28,347 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:38:28,347 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:38:28,347 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:38:28,347 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:38:28,348 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:38:28,348 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:38:28,348 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:38:28,348 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:38:28,348 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:38:28,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 13:38:28,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 13:38:28,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:38:28,349 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:38:28,349 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:38:28,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:38:28,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:38:28,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:38:28,349 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 13:38:28,349 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 13:38:28,350 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 13:38:28,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:38:28,350 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:38:28,350 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 13:38:28,350 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 13:38:28,350 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:38:28,350 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:38:28,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:38:28,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 13:38:28,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:38:28,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:38:28,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:38:28,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:38:28,355 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 13:38:28,355 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 13:38:28,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:38:28,356 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 13:38:28,356 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d [2022-12-14 13:38:28,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:38:28,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:38:28,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:38:28,578 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:38:28,578 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:38:28,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2022-12-14 13:38:31,191 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:38:31,372 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:38:31,372 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2022-12-14 13:38:31,380 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/data/0a8b94a2e/b27b0c43d00a4ae2805ad8a1aca4b644/FLAGeeae3c626 [2022-12-14 13:38:31,391 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/data/0a8b94a2e/b27b0c43d00a4ae2805ad8a1aca4b644 [2022-12-14 13:38:31,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:38:31,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:38:31,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:38:31,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:38:31,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:38:31,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:38:31" (1/1) ... [2022-12-14 13:38:31,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25981b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:31, skipping insertion in model container [2022-12-14 13:38:31,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:38:31" (1/1) ... [2022-12-14 13:38:31,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:38:31,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:38:31,563 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2022-12-14 13:38:31,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:38:31,672 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:38:31,680 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2022-12-14 13:38:31,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:38:31,749 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:38:31,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:31 WrapperNode [2022-12-14 13:38:31,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:38:31,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:38:31,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:38:31,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:38:31,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:31" (1/1) ... [2022-12-14 13:38:31,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:31" (1/1) ... [2022-12-14 13:38:31,792 INFO L138 Inliner]: procedures = 166, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2022-12-14 13:38:31,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:38:31,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:38:31,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:38:31,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:38:31,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:31" (1/1) ... [2022-12-14 13:38:31,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:31" (1/1) ... [2022-12-14 13:38:31,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:31" (1/1) ... [2022-12-14 13:38:31,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:31" (1/1) ... [2022-12-14 13:38:31,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:31" (1/1) ... [2022-12-14 13:38:31,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:31" (1/1) ... [2022-12-14 13:38:31,814 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:31" (1/1) ... [2022-12-14 13:38:31,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:31" (1/1) ... [2022-12-14 13:38:31,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:38:31,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:38:31,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:38:31,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:38:31,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:31" (1/1) ... [2022-12-14 13:38:31,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:38:31,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:38:31,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:38:31,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:38:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 13:38:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 13:38:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:38:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:38:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 13:38:31,882 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 13:38:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:38:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 13:38:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 13:38:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-14 13:38:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:38:31,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:38:31,884 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 13:38:32,001 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:38:32,003 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:38:32,192 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:38:32,197 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:38:32,197 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:38:32,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:38:32 BoogieIcfgContainer [2022-12-14 13:38:32,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:38:32,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:38:32,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:38:32,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:38:32,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:38:31" (1/3) ... [2022-12-14 13:38:32,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273004e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:38:32, skipping insertion in model container [2022-12-14 13:38:32,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:31" (2/3) ... [2022-12-14 13:38:32,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273004e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:38:32, skipping insertion in model container [2022-12-14 13:38:32,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:38:32" (3/3) ... [2022-12-14 13:38:32,212 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2022-12-14 13:38:32,227 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:38:32,227 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 13:38:32,227 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 13:38:32,284 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-14 13:38:32,312 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 13:38:32,327 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 80 transitions, 168 flow [2022-12-14 13:38:32,330 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 80 transitions, 168 flow [2022-12-14 13:38:32,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 80 transitions, 168 flow [2022-12-14 13:38:32,371 INFO L130 PetriNetUnfolder]: 1/79 cut-off events. [2022-12-14 13:38:32,371 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-14 13:38:32,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 1/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-12-14 13:38:32,376 INFO L119 LiptonReduction]: Number of co-enabled transitions 504 [2022-12-14 13:38:37,055 INFO L134 LiptonReduction]: Checked pairs total: 1592 [2022-12-14 13:38:37,055 INFO L136 LiptonReduction]: Total number of compositions: 72 [2022-12-14 13:38:37,062 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 22 transitions, 52 flow [2022-12-14 13:38:37,071 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:37,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:38:37,088 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@7b2999be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:38:37,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-14 13:38:37,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:37,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 13:38:37,093 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:38:37,093 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 13:38:37,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-12-14 13:38:37,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:38:37,097 INFO L85 PathProgramCache]: Analyzing trace with hash 283, now seen corresponding path program 1 times [2022-12-14 13:38:37,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:38:37,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152493832] [2022-12-14 13:38:37,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:38:37,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:38:37,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:38:37,107 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:38:37,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 13:38:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:38:37,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 13:38:37,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:38:37,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:38:37,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:38:37,154 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:38:37,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152493832] [2022-12-14 13:38:37,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1152493832] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:38:37,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:38:37,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 13:38:37,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444917743] [2022-12-14 13:38:37,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:38:37,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:38:37,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:38:37,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:38:37,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:38:37,176 INFO L87 Difference]: Start difference. First operand has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:37,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:38:37,209 INFO L93 Difference]: Finished difference Result 67 states and 114 transitions. [2022-12-14 13:38:37,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:38:37,211 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-12-14 13:38:37,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:38:37,217 INFO L225 Difference]: With dead ends: 67 [2022-12-14 13:38:37,217 INFO L226 Difference]: Without dead ends: 67 [2022-12-14 13:38:37,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:38:37,222 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:38:37,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:38:37,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-12-14 13:38:37,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-12-14 13:38:37,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 63 states have (on average 1.8095238095238095) internal successors, (114), 66 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:37,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 114 transitions. [2022-12-14 13:38:37,257 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 114 transitions. Word has length 1 [2022-12-14 13:38:37,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:38:37,257 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 114 transitions. [2022-12-14 13:38:37,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:37,258 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 114 transitions. [2022-12-14 13:38:37,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 13:38:37,258 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:38:37,258 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 13:38:37,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:38:37,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:38:37,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-12-14 13:38:37,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:38:37,462 INFO L85 PathProgramCache]: Analyzing trace with hash 8581598, now seen corresponding path program 1 times [2022-12-14 13:38:37,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:38:37,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47087831] [2022-12-14 13:38:37,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:38:37,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:38:37,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:38:37,469 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:38:37,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 13:38:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:38:37,577 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:38:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:38:37,612 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 13:38:37,612 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:38:37,614 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2022-12-14 13:38:37,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-12-14 13:38:37,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-12-14 13:38:37,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-12-14 13:38:37,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-12-14 13:38:37,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-12-14 13:38:37,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2022-12-14 13:38:37,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 13:38:37,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:38:37,823 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 13:38:37,835 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 13:38:37,835 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:38:37,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:38:37 BasicIcfg [2022-12-14 13:38:37,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:38:37,865 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:38:37,865 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:38:37,866 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:38:37,866 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:38:32" (3/4) ... [2022-12-14 13:38:37,869 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:38:37,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:38:37,870 INFO L158 Benchmark]: Toolchain (without parser) took 6475.79ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 54.4MB in the beginning and 41.3MB in the end (delta: 13.0MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2022-12-14 13:38:37,871 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory was 31.1MB in the beginning and 31.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:38:37,871 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.39ms. Allocated memory is still 77.6MB. Free memory was 54.2MB in the beginning and 52.3MB in the end (delta: 1.8MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2022-12-14 13:38:37,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.60ms. Allocated memory is still 77.6MB. Free memory was 52.3MB in the beginning and 50.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:38:37,873 INFO L158 Benchmark]: Boogie Preprocessor took 25.09ms. Allocated memory is still 77.6MB. Free memory was 50.2MB in the beginning and 48.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:38:37,873 INFO L158 Benchmark]: RCFGBuilder took 380.92ms. Allocated memory is still 77.6MB. Free memory was 48.4MB in the beginning and 33.7MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 13:38:37,874 INFO L158 Benchmark]: TraceAbstraction took 5658.11ms. Allocated memory is still 94.4MB. Free memory was 72.4MB in the beginning and 41.3MB in the end (delta: 31.0MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2022-12-14 13:38:37,874 INFO L158 Benchmark]: Witness Printer took 3.74ms. Allocated memory is still 94.4MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:38:37,878 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory was 31.1MB in the beginning and 31.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.39ms. Allocated memory is still 77.6MB. Free memory was 54.2MB in the beginning and 52.3MB in the end (delta: 1.8MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.60ms. Allocated memory is still 77.6MB. Free memory was 52.3MB in the beginning and 50.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.09ms. Allocated memory is still 77.6MB. Free memory was 50.2MB in the beginning and 48.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 380.92ms. Allocated memory is still 77.6MB. Free memory was 48.4MB in the beginning and 33.7MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5658.11ms. Allocated memory is still 94.4MB. Free memory was 72.4MB in the beginning and 41.3MB in the end (delta: 31.0MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * Witness Printer took 3.74ms. Allocated memory is still 94.4MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.7s, 83 PlacesBefore, 26 PlacesAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 6 FixpointIterations, 49 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 1592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 999, independent: 849, independent conditional: 0, independent unconditional: 849, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 462, independent: 418, independent conditional: 0, independent unconditional: 418, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 462, independent: 390, independent conditional: 0, independent unconditional: 390, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 72, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 218, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 148, dependent conditional: 0, dependent unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 999, independent: 431, independent conditional: 0, independent unconditional: 431, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 462, unknown conditional: 0, unknown unconditional: 462] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, 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 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={7:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L699] CALL 0 __VERIFIER_assert(glob1 == 5) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 96 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 13:38:37,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93491bca-3e6c-4c89-9fd7-e171da6f9bde/bin/utaipan-gh47qXpMRh/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 Result: UNKNOWN: Overapproximated counterexample