./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs --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 b4ee1006c59f42fb55d740fb854e177fc9b2f15c ...................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:39:02,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:39:02,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:39:02,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:39:02,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:39:02,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:39:02,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:39:02,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:39:02,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:39:02,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:39:02,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:39:02,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:39:02,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:39:02,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:39:02,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:39:02,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:39:02,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:39:02,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:39:02,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:39:02,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:39:02,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:39:02,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:39:02,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:39:02,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:39:02,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:39:02,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:39:02,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:39:02,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:39:02,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:39:02,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:39:02,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:39:02,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:39:02,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:39:02,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:39:02,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:39:02,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:39:02,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:39:02,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:39:02,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:39:02,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:39:02,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:39:02,921 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:39:02,955 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:39:02,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:39:02,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:39:02,957 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:39:02,957 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:39:02,958 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:39:02,958 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:39:02,958 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:39:02,959 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:39:02,959 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:39:02,959 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:39:02,960 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:39:02,960 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:39:02,960 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:39:02,961 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:39:02,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:39:02,962 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:39:02,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:39:02,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:39:02,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:39:02,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:39:02,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:39:02,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:39:02,964 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:39:02,964 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:39:02,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:39:02,965 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:39:02,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:39:02,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:39:02,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:39:02,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:39:02,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:39:02,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:39:02,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:39:02,968 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:39:02,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:39:02,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:39:02,969 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:39:02,969 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:39:02,969 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4ee1006c59f42fb55d740fb854e177fc9b2f15c [2021-10-16 02:39:03,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:39:03,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:39:03,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:39:03,386 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:39:03,387 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:39:03,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c [2021-10-16 02:39:03,488 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs/data/e5cae420f/0abb5f045bce4c9fbf20cb366c22b01b/FLAG7fcc32149 [2021-10-16 02:39:04,138 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:39:04,144 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c [2021-10-16 02:39:04,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs/data/e5cae420f/0abb5f045bce4c9fbf20cb366c22b01b/FLAG7fcc32149 [2021-10-16 02:39:04,455 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs/data/e5cae420f/0abb5f045bce4c9fbf20cb366c22b01b [2021-10-16 02:39:04,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:39:04,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:39:04,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:39:04,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:39:04,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:39:04,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:39:04" (1/1) ... [2021-10-16 02:39:04,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4b7f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04, skipping insertion in model container [2021-10-16 02:39:04,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:39:04" (1/1) ... [2021-10-16 02:39:04,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:39:04,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:39:04,843 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c[2212,2225] [2021-10-16 02:39:04,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:39:04,862 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:39:04,908 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c[2212,2225] [2021-10-16 02:39:04,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:39:04,931 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:39:04,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04 WrapperNode [2021-10-16 02:39:04,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:39:04,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:39:04,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:39:04,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:39:04,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2021-10-16 02:39:04,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2021-10-16 02:39:04,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:39:04,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:39:04,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:39:04,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:39:05,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2021-10-16 02:39:05,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2021-10-16 02:39:05,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2021-10-16 02:39:05,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2021-10-16 02:39:05,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2021-10-16 02:39:05,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2021-10-16 02:39:05,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2021-10-16 02:39:05,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:39:05,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:39:05,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:39:05,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:39:05,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2021-10-16 02:39:05,038 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:39:05,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:39:05,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:39:05,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:39:05,129 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-16 02:39:05,129 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-16 02:39:05,129 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-16 02:39:05,130 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-16 02:39:05,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:39:05,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:39:05,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:39:05,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-16 02:39:05,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-16 02:39:05,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:39:05,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:39:05,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:39:05,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:39:05,134 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 02:39:05,578 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:39:05,584 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-16 02:39:05,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:39:05 BoogieIcfgContainer [2021-10-16 02:39:05,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:39:05,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:39:05,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:39:05,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:39:05,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:39:04" (1/3) ... [2021-10-16 02:39:05,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e50327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:39:05, skipping insertion in model container [2021-10-16 02:39:05,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (2/3) ... [2021-10-16 02:39:05,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e50327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:39:05, skipping insertion in model container [2021-10-16 02:39:05,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:39:05" (3/3) ... [2021-10-16 02:39:05,602 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled.wvr.c [2021-10-16 02:39:05,609 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-16 02:39:05,610 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:39:05,610 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:39:05,610 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 02:39:05,683 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,683 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,684 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,684 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,684 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,685 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,685 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,686 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,686 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,686 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,687 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,689 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,689 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,689 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,690 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,690 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,691 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,691 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,692 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,692 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,693 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,693 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,696 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,697 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,697 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,698 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,698 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,699 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,699 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,699 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,701 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,702 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,702 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,707 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,708 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,708 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,708 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,709 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,709 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,715 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,717 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,717 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,717 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:39:05,738 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-16 02:39:05,813 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:39:05,829 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:39:05,830 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-16 02:39:05,857 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-16 02:39:05,870 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 90 transitions, 196 flow [2021-10-16 02:39:05,878 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 90 transitions, 196 flow [2021-10-16 02:39:05,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 90 transitions, 196 flow [2021-10-16 02:39:05,983 INFO L129 PetriNetUnfolder]: 6/88 cut-off events. [2021-10-16 02:39:05,984 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-16 02:39:05,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 88 events. 6/88 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2021-10-16 02:39:05,997 INFO L116 LiptonReduction]: Number of co-enabled transitions 728 [2021-10-16 02:39:10,282 INFO L131 LiptonReduction]: Checked pairs total: 684 [2021-10-16 02:39:10,283 INFO L133 LiptonReduction]: Total number of compositions: 81 [2021-10-16 02:39:10,292 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 16 transitions, 48 flow [2021-10-16 02:39:10,306 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 19 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:39:10,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 19 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:39:10,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:39:10,315 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:39:10,316 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:39:10,317 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 02:39:10,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:39:10,324 INFO L82 PathProgramCache]: Analyzing trace with hash 754416743, now seen corresponding path program 1 times [2021-10-16 02:39:10,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:39:10,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864618230] [2021-10-16 02:39:10,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:39:10,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:39:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:39:10,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:39:10,697 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:39:10,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864618230] [2021-10-16 02:39:10,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864618230] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:39:10,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:39:10,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-16 02:39:10,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825462504] [2021-10-16 02:39:10,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:39:10,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:39:10,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:39:10,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:39:10,728 INFO L87 Difference]: Start difference. First operand has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 19 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:39:10,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:39:10,759 INFO L93 Difference]: Finished difference Result 19 states and 39 transitions. [2021-10-16 02:39:10,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:39:10,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-10-16 02:39:10,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:39:10,776 INFO L225 Difference]: With dead ends: 19 [2021-10-16 02:39:10,777 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:39:10,798 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:39:10,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:39:10,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:39:10,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:39:10,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:39:10,827 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-16 02:39:10,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:39:10,828 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:39:10,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:39:10,830 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:39:10,830 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:39:10,834 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:39:10,835 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 02:39:10,835 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-16 02:39:10,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:39:10,841 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 02:39:10,841 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:39:10,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:39:10 BasicIcfg [2021-10-16 02:39:10,844 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:39:10,846 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:39:10,847 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:39:10,847 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:39:10,848 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:39:05" (3/4) ... [2021-10-16 02:39:10,852 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:39:10,859 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-16 02:39:10,860 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-16 02:39:10,868 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-16 02:39:10,868 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 02:39:10,869 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:39:10,869 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:39:10,946 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:39:10,946 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:39:10,948 INFO L168 Benchmark]: Toolchain (without parser) took 6486.19 ms. Allocated memory was 83.9 MB in the beginning and 130.0 MB in the end (delta: 46.1 MB). Free memory was 46.2 MB in the beginning and 100.1 MB in the end (delta: -53.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:39:10,949 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 83.9 MB. Free memory is still 62.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:39:10,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.84 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 46.0 MB in the beginning and 82.7 MB in the end (delta: -36.6 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:39:10,950 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.83 ms. Allocated memory is still 107.0 MB. Free memory was 82.7 MB in the beginning and 81.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:39:10,951 INFO L168 Benchmark]: Boogie Preprocessor took 31.75 ms. Allocated memory is still 107.0 MB. Free memory was 81.2 MB in the beginning and 79.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:39:10,951 INFO L168 Benchmark]: RCFGBuilder took 560.47 ms. Allocated memory is still 107.0 MB. Free memory was 79.8 MB in the beginning and 67.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:39:10,952 INFO L168 Benchmark]: TraceAbstraction took 5254.90 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 66.5 MB in the beginning and 103.3 MB in the end (delta: -36.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:39:10,953 INFO L168 Benchmark]: Witness Printer took 99.75 ms. Allocated memory is still 130.0 MB. Free memory was 103.3 MB in the beginning and 100.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:39:10,955 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 83.9 MB. Free memory is still 62.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 451.84 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 46.0 MB in the beginning and 82.7 MB in the end (delta: -36.6 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.83 ms. Allocated memory is still 107.0 MB. Free memory was 82.7 MB in the beginning and 81.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.75 ms. Allocated memory is still 107.0 MB. Free memory was 81.2 MB in the beginning and 79.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 560.47 ms. Allocated memory is still 107.0 MB. Free memory was 79.8 MB in the beginning and 67.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5254.90 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 66.5 MB in the beginning and 103.3 MB in the end (delta: -36.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 99.75 ms. Allocated memory is still 130.0 MB. Free memory was 103.3 MB in the beginning and 100.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4404.8ms, 91 PlacesBefore, 21 PlacesAfterwards, 90 TransitionsBefore, 16 TransitionsAfterwards, 728 CoEnabledTransitionPairs, 6 FixpointIterations, 44 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 4 ConcurrentYvCompositions, 4 ChoiceCompositions, 81 TotalNumberOfCompositions, 684 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 684, positive: 684, positive conditional: 0, positive unconditional: 684, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 522, positive: 522, positive conditional: 0, positive unconditional: 522, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 522, positive: 508, positive conditional: 0, positive unconditional: 508, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 76, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 684, positive: 162, positive conditional: 0, positive unconditional: 162, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 522, unknown conditional: 0, unknown unconditional: 522] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 83]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 111 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 5032.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.1ms, AutomataDifference: 90.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4476.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 2 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 11.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.6ms SsaConstructionTime, 90.2ms SatisfiabilityAnalysisTime, 170.4ms InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-16 02:39:10,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae04e6f-116f-4f68-a7ea-c24baf10017d/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...