./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9/config/TaipanReach.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_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-6b4ec56 [2022-11-20 21:24:04,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:24:04,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:24:04,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:24:04,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:24:04,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:24:04,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:24:04,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:24:04,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:24:04,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:24:04,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:24:04,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:24:04,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:24:04,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:24:04,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:24:04,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:24:04,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:24:04,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:24:04,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:24:04,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:24:04,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:24:04,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:24:04,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:24:04,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:24:04,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:24:04,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:24:04,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:24:04,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:24:04,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:24:04,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:24:04,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:24:04,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:24:04,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:24:04,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:24:04,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:24:04,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:24:04,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:24:04,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:24:04,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:24:04,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:24:04,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:24:04,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 21:24:04,953 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:24:04,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:24:04,955 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:24:04,955 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:24:04,956 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:24:04,956 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:24:04,957 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:24:04,957 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:24:04,957 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:24:04,957 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:24:04,959 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:24:04,959 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:24:04,959 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:24:04,960 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:24:04,960 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:24:04,960 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:24:04,960 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:24:04,961 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:24:04,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:24:04,962 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 21:24:04,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:24:04,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 21:24:04,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:24:04,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:24:04,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:24:04,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:24:04,964 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 21:24:04,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:24:04,964 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:24:04,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:24:04,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:24:04,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:24:04,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:24:04,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:24:04,966 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:24:04,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:24:04,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:24:04,967 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:24:04,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:24:04,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:24:04,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:24:04,980 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_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d [2022-11-20 21:24:05,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:24:05,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:24:05,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:24:05,312 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:24:05,312 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:24:05,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2022-11-20 21:24:08,406 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:24:08,648 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:24:08,648 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28be1a9d-4df0-4993-b37f-248030117f5c/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2022-11-20 21:24:08,676 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9/data/9956e8db3/ec92cf1b9d9742bb97b838ead11a5d26/FLAG8923a8b32 [2022-11-20 21:24:08,700 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9/data/9956e8db3/ec92cf1b9d9742bb97b838ead11a5d26 [2022-11-20 21:24:08,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:24:08,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:24:08,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:24:08,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:24:08,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:24:08,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:24:08" (1/1) ... [2022-11-20 21:24:08,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2efb1c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:08, skipping insertion in model container [2022-11-20 21:24:08,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:24:08" (1/1) ... [2022-11-20 21:24:08,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:24:08,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:24:08,965 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_28be1a9d-4df0-4993-b37f-248030117f5c/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2022-11-20 21:24:09,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:24:09,211 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:24:09,228 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_28be1a9d-4df0-4993-b37f-248030117f5c/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2022-11-20 21:24:09,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:24:09,352 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:24:09,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:09 WrapperNode [2022-11-20 21:24:09,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:24:09,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:24:09,355 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:24:09,355 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:24:09,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:09" (1/1) ... [2022-11-20 21:24:09,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:09" (1/1) ... [2022-11-20 21:24:09,426 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-11-20 21:24:09,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:24:09,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:24:09,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:24:09,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:24:09,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:09" (1/1) ... [2022-11-20 21:24:09,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:09" (1/1) ... [2022-11-20 21:24:09,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:09" (1/1) ... [2022-11-20 21:24:09,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:09" (1/1) ... [2022-11-20 21:24:09,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:09" (1/1) ... [2022-11-20 21:24:09,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:09" (1/1) ... [2022-11-20 21:24:09,474 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:09" (1/1) ... [2022-11-20 21:24:09,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:09" (1/1) ... [2022-11-20 21:24:09,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:24:09,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:24:09,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:24:09,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:24:09,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:09" (1/1) ... [2022-11-20 21:24:09,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:24:09,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:24:09,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:24:09,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:24:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 21:24:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 21:24:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 21:24:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:24:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 21:24:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 21:24:09,570 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 21:24:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 21:24:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 21:24:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:24:09,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:24:09,572 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 21:24:09,803 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:24:09,806 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:24:09,989 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:24:09,996 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:24:09,999 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 21:24:10,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:24:10 BoogieIcfgContainer [2022-11-20 21:24:10,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:24:10,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:24:10,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:24:10,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:24:10,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:24:08" (1/3) ... [2022-11-20 21:24:10,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343c951d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:24:10, skipping insertion in model container [2022-11-20 21:24:10,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:09" (2/3) ... [2022-11-20 21:24:10,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343c951d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:24:10, skipping insertion in model container [2022-11-20 21:24:10,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:24:10" (3/3) ... [2022-11-20 21:24:10,014 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2022-11-20 21:24:10,023 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 21:24:10,035 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:24:10,036 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 21:24:10,036 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 21:24:10,113 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-20 21:24:10,148 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 21:24:10,172 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 71 transitions, 150 flow [2022-11-20 21:24:10,184 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 71 transitions, 150 flow [2022-11-20 21:24:10,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 150 flow [2022-11-20 21:24:10,269 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-11-20 21:24:10,272 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 21:24:10,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 1/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2022-11-20 21:24:10,278 INFO L119 LiptonReduction]: Number of co-enabled transitions 448 [2022-11-20 21:24:13,485 INFO L134 LiptonReduction]: Checked pairs total: 1213 [2022-11-20 21:24:13,485 INFO L136 LiptonReduction]: Total number of compositions: 58 [2022-11-20 21:24:13,494 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 17 transitions, 42 flow [2022-11-20 21:24:13,507 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 21:24:13,525 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:24:13,534 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7f7c0768, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:24:13,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 21:24:13,537 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 21:24:13,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 21:24:13,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:24:13,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-20 21:24:13,543 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-20 21:24:13,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:24:13,551 INFO L85 PathProgramCache]: Analyzing trace with hash 7669768, now seen corresponding path program 1 times [2022-11-20 21:24:13,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:24:13,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631924388] [2022-11-20 21:24:13,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:24:13,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:24:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 21:24:13,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 21:24:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 21:24:13,806 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-20 21:24:13,808 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 21:24:13,810 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-20 21:24:13,813 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-11-20 21:24:13,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 21:24:13,816 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 21:24:13,824 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 21:24:13,824 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 21:24:13,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:24:13 BasicIcfg [2022-11-20 21:24:13,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 21:24:13,843 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 21:24:13,843 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 21:24:13,843 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 21:24:13,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:24:10" (3/4) ... [2022-11-20 21:24:13,846 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 21:24:13,880 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 21:24:13,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 21:24:13,882 INFO L158 Benchmark]: Toolchain (without parser) took 5174.10ms. Allocated memory was 127.9MB in the beginning and 192.9MB in the end (delta: 65.0MB). Free memory was 62.6MB in the beginning and 70.9MB in the end (delta: -8.3MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2022-11-20 21:24:13,882 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:24:13,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 640.11ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 62.6MB in the beginning and 125.3MB in the end (delta: -62.6MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2022-11-20 21:24:13,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.92ms. Allocated memory is still 159.4MB. Free memory was 125.3MB in the beginning and 123.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:24:13,884 INFO L158 Benchmark]: Boogie Preprocessor took 51.88ms. Allocated memory is still 159.4MB. Free memory was 123.2MB in the beginning and 121.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:24:13,885 INFO L158 Benchmark]: RCFGBuilder took 522.52ms. Allocated memory is still 159.4MB. Free memory was 121.8MB in the beginning and 108.5MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 21:24:13,885 INFO L158 Benchmark]: TraceAbstraction took 3836.31ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 107.7MB in the beginning and 73.0MB in the end (delta: 34.7MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. [2022-11-20 21:24:13,886 INFO L158 Benchmark]: Witness Printer took 37.68ms. Allocated memory is still 192.9MB. Free memory was 73.0MB in the beginning and 70.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:24:13,889 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 640.11ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 62.6MB in the beginning and 125.3MB in the end (delta: -62.6MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.92ms. Allocated memory is still 159.4MB. Free memory was 125.3MB in the beginning and 123.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.88ms. Allocated memory is still 159.4MB. Free memory was 123.2MB in the beginning and 121.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 522.52ms. Allocated memory is still 159.4MB. Free memory was 121.8MB in the beginning and 108.5MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3836.31ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 107.7MB in the beginning and 73.0MB in the end (delta: 34.7MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. * Witness Printer took 37.68ms. Allocated memory is still 192.9MB. Free memory was 73.0MB in the beginning and 70.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 74 PlacesBefore, 21 PlacesAfterwards, 71 TransitionsBefore, 17 TransitionsAfterwards, 448 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 1213 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 709, independent: 578, independent conditional: 0, independent unconditional: 578, dependent: 131, dependent conditional: 0, dependent unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 372, independent: 327, independent conditional: 0, independent unconditional: 327, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 372, independent: 313, independent conditional: 0, independent unconditional: 313, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 59, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 170, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 146, dependent conditional: 0, dependent unconditional: 146, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 709, independent: 251, independent conditional: 0, independent unconditional: 251, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 372, unknown conditional: 0, unknown unconditional: 372] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [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: 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, 87 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-20 21:24:13,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28be1a9d-4df0-4993-b37f-248030117f5c/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE