./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba --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 dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c --- 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-b5237d8 [2022-11-22 00:32:15,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:32:15,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:32:15,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:32:15,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:32:15,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:32:15,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:32:15,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:32:15,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:32:15,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:32:15,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:32:15,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:32:15,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:32:15,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:32:15,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:32:15,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:32:15,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:32:15,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:32:15,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:32:15,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:32:15,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:32:15,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:32:15,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:32:15,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:32:15,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:32:16,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:32:16,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:32:16,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:32:16,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:32:16,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:32:16,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:32:16,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:32:16,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:32:16,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:32:16,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:32:16,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:32:16,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:32:16,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:32:16,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:32:16,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:32:16,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:32:16,022 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 00:32:16,067 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:32:16,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:32:16,068 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:32:16,068 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:32:16,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:32:16,070 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:32:16,070 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:32:16,070 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:32:16,070 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:32:16,071 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:32:16,072 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:32:16,072 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:32:16,072 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:32:16,073 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:32:16,073 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:32:16,073 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:32:16,073 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:32:16,073 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:32:16,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:32:16,075 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:32:16,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:32:16,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:32:16,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:32:16,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:32:16,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:32:16,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:32:16,076 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:32:16,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:32:16,077 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:32:16,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:32:16,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:32:16,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:32:16,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:32:16,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:32:16,079 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:32:16,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:32:16,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:32:16,079 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:32:16,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:32:16,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:32:16,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:32:16,080 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_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c [2022-11-22 00:32:16,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:32:16,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:32:16,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:32:16,436 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:32:16,437 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:32:16,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-22 00:32:19,675 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:32:19,915 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:32:19,915 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-22 00:32:19,928 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba/data/56a89667d/9ec496a0d30543d684353476a7495301/FLAG63405d592 [2022-11-22 00:32:19,943 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba/data/56a89667d/9ec496a0d30543d684353476a7495301 [2022-11-22 00:32:19,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:32:19,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:32:19,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:32:19,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:32:19,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:32:19,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:32:19" (1/1) ... [2022-11-22 00:32:19,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f2f3d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:19, skipping insertion in model container [2022-11-22 00:32:19,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:32:19" (1/1) ... [2022-11-22 00:32:19,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:32:20,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:32:20,169 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_b5843132-8217-469f-8884-d824bd289dcb/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-11-22 00:32:20,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:32:20,390 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:32:20,405 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_b5843132-8217-469f-8884-d824bd289dcb/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-11-22 00:32:20,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:32:20,499 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:32:20,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:20 WrapperNode [2022-11-22 00:32:20,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:32:20,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:32:20,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:32:20,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:32:20,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:20" (1/1) ... [2022-11-22 00:32:20,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:20" (1/1) ... [2022-11-22 00:32:20,568 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-11-22 00:32:20,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:32:20,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:32:20,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:32:20,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:32:20,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:20" (1/1) ... [2022-11-22 00:32:20,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:20" (1/1) ... [2022-11-22 00:32:20,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:20" (1/1) ... [2022-11-22 00:32:20,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:20" (1/1) ... [2022-11-22 00:32:20,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:20" (1/1) ... [2022-11-22 00:32:20,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:20" (1/1) ... [2022-11-22 00:32:20,607 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:20" (1/1) ... [2022-11-22 00:32:20,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:20" (1/1) ... [2022-11-22 00:32:20,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:32:20,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:32:20,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:32:20,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:32:20,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:20" (1/1) ... [2022-11-22 00:32:20,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:32:20,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:32:20,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:32:20,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:32:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:32:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 00:32:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:32:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:32:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-22 00:32:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-22 00:32:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:32:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:32:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:32:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:32:20,707 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 00:32:20,872 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:32:20,875 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:32:21,063 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:32:21,071 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:32:21,071 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 00:32:21,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:32:21 BoogieIcfgContainer [2022-11-22 00:32:21,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:32:21,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:32:21,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:32:21,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:32:21,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:32:19" (1/3) ... [2022-11-22 00:32:21,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e9089e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:32:21, skipping insertion in model container [2022-11-22 00:32:21,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:32:20" (2/3) ... [2022-11-22 00:32:21,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e9089e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:32:21, skipping insertion in model container [2022-11-22 00:32:21,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:32:21" (3/3) ... [2022-11-22 00:32:21,083 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-22 00:32:21,093 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 00:32:21,105 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:32:21,105 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:32:21,105 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 00:32:21,153 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 00:32:21,188 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 00:32:21,204 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 78 transitions, 161 flow [2022-11-22 00:32:21,208 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 78 transitions, 161 flow [2022-11-22 00:32:21,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 161 flow [2022-11-22 00:32:21,284 INFO L130 PetriNetUnfolder]: 2/77 cut-off events. [2022-11-22 00:32:21,285 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-22 00:32:21,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2022-11-22 00:32:21,296 INFO L119 LiptonReduction]: Number of co-enabled transitions 620 [2022-11-22 00:32:25,229 INFO L134 LiptonReduction]: Checked pairs total: 1734 [2022-11-22 00:32:25,229 INFO L136 LiptonReduction]: Total number of compositions: 66 [2022-11-22 00:32:25,238 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 19 transitions, 43 flow [2022-11-22 00:32:25,254 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 56 states, 55 states have (on average 1.8363636363636364) internal successors, (101), 55 states have internal predecessors, (101), 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) [2022-11-22 00:32:25,272 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:32:25,279 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;@713aeac6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:32:25,279 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-22 00:32:25,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 55 states have (on average 1.8363636363636364) internal successors, (101), 55 states have internal predecessors, (101), 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) [2022-11-22 00:32:25,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 00:32:25,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:32:25,287 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 00:32:25,288 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-22 00:32:25,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:32:25,293 INFO L85 PathProgramCache]: Analyzing trace with hash -604710029, now seen corresponding path program 1 times [2022-11-22 00:32:25,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:32:25,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895034467] [2022-11-22 00:32:25,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:32:25,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:32:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:32:25,431 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 00:32:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:32:25,482 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 00:32:25,484 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 00:32:25,486 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-22 00:32:25,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-11-22 00:32:25,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:32:25,492 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 00:32:25,500 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 00:32:25,500 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:32:25,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:32:25 BasicIcfg [2022-11-22 00:32:25,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:32:25,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:32:25,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:32:25,531 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:32:25,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:32:21" (3/4) ... [2022-11-22 00:32:25,534 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 00:32:25,598 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:32:25,600 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:32:25,601 INFO L158 Benchmark]: Toolchain (without parser) took 5653.01ms. Allocated memory was 163.6MB in the beginning and 203.4MB in the end (delta: 39.8MB). Free memory was 117.3MB in the beginning and 142.6MB in the end (delta: -25.3MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2022-11-22 00:32:25,602 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 163.6MB. Free memory is still 108.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:32:25,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 551.69ms. Allocated memory is still 163.6MB. Free memory was 117.3MB in the beginning and 97.7MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 00:32:25,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.15ms. Allocated memory is still 163.6MB. Free memory was 97.7MB in the beginning and 95.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:32:25,604 INFO L158 Benchmark]: Boogie Preprocessor took 43.47ms. Allocated memory is still 163.6MB. Free memory was 95.7MB in the beginning and 94.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:32:25,604 INFO L158 Benchmark]: RCFGBuilder took 459.98ms. Allocated memory is still 163.6MB. Free memory was 94.3MB in the beginning and 81.1MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 00:32:25,605 INFO L158 Benchmark]: TraceAbstraction took 4454.31ms. Allocated memory was 163.6MB in the beginning and 203.4MB in the end (delta: 39.8MB). Free memory was 80.8MB in the beginning and 144.7MB in the end (delta: -63.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:32:25,610 INFO L158 Benchmark]: Witness Printer took 68.91ms. Allocated memory is still 203.4MB. Free memory was 144.7MB in the beginning and 142.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:32:25,613 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 163.6MB. Free memory is still 108.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 551.69ms. Allocated memory is still 163.6MB. Free memory was 117.3MB in the beginning and 97.7MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.15ms. Allocated memory is still 163.6MB. Free memory was 97.7MB in the beginning and 95.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.47ms. Allocated memory is still 163.6MB. Free memory was 95.7MB in the beginning and 94.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 459.98ms. Allocated memory is still 163.6MB. Free memory was 94.3MB in the beginning and 81.1MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4454.31ms. Allocated memory was 163.6MB in the beginning and 203.4MB in the end (delta: 39.8MB). Free memory was 80.8MB in the beginning and 144.7MB in the end (delta: -63.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 68.91ms. Allocated memory is still 203.4MB. Free memory was 144.7MB in the beginning and 142.6MB 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: 4.0s, 80 PlacesBefore, 22 PlacesAfterwards, 78 TransitionsBefore, 19 TransitionsAfterwards, 620 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 66 TotalNumberOfCompositions, 1734 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 863, independent: 693, independent conditional: 0, independent unconditional: 693, dependent: 170, dependent conditional: 0, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 415, independent: 373, independent conditional: 0, independent unconditional: 373, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 415, independent: 355, independent conditional: 0, independent unconditional: 355, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 60, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 233, independent: 69, independent conditional: 0, independent unconditional: 69, dependent: 164, dependent conditional: 0, dependent unconditional: 164, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 863, independent: 320, independent conditional: 0, independent unconditional: 320, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 415, unknown conditional: 0, unknown unconditional: 415] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, 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: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=42] - 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, 89 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-22 00:32:25,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5843132-8217-469f-8884-d824bd289dcb/bin/utaipan-g80aRyZoba/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