./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-time-symm.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_e84eeb40-0cc4-451c-8686-972e2963746b/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84eeb40-0cc4-451c-8686-972e2963746b/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_e84eeb40-0cc4-451c-8686-972e2963746b/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84eeb40-0cc4-451c-8686-972e2963746b/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-time-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84eeb40-0cc4-451c-8686-972e2963746b/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_e84eeb40-0cc4-451c-8686-972e2963746b/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 c994df08030b4540bc8be7d4eef96bb00bd63c29 ............................................................................................................................................................................................................................................................................................................................................................................................................................. 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 02:00:04,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:00:04,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:00:04,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:00:04,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:00:04,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:00:04,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:00:04,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:00:04,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:00:04,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:00:04,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:00:04,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:00:04,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:00:04,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:00:04,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:00:04,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:00:04,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:00:04,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:00:04,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:00:04,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:00:04,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:00:04,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:00:04,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:00:04,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:00:04,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:00:04,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:00:04,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:00:04,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:00:04,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:00:04,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:00:04,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:00:04,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:00:04,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:00:04,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:00:04,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:00:04,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:00:04,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:00:04,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:00:04,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:00:04,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:00:04,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:00:04,477 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84eeb40-0cc4-451c-8686-972e2963746b/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:00:04,507 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:00:04,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:00:04,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:00:04,509 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:00:04,509 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:00:04,509 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:00:04,510 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:00:04,510 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:00:04,511 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:00:04,511 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:00:04,511 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:00:04,512 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:00:04,512 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:00:04,513 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:00:04,513 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:00:04,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:00:04,514 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:00:04,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:00:04,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:00:04,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:00:04,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:00:04,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:00:04,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:00:04,517 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:00:04,517 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:00:04,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:00:04,518 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:00:04,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:00:04,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:00:04,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:00:04,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:00:04,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:00:04,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:00:04,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:00:04,521 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:00:04,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:00:04,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:00:04,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:00:04,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:00:04,523 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_e84eeb40-0cc4-451c-8686-972e2963746b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84eeb40-0cc4-451c-8686-972e2963746b/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c994df08030b4540bc8be7d4eef96bb00bd63c29 [2021-10-16 02:00:04,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:00:04,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:00:04,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:00:04,880 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:00:04,881 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:00:04,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84eeb40-0cc4-451c-8686-972e2963746b/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/weaver/chl-time-symm.wvr.c [2021-10-16 02:00:04,968 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84eeb40-0cc4-451c-8686-972e2963746b/bin/utaipan-mTDlp9Zugs/data/289e63183/4f2ef042816d44778ffd8d781157a160/FLAG1b024b57c [2021-10-16 02:00:05,589 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:00:05,590 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84eeb40-0cc4-451c-8686-972e2963746b/sv-benchmarks/c/weaver/chl-time-symm.wvr.c [2021-10-16 02:00:05,604 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84eeb40-0cc4-451c-8686-972e2963746b/bin/utaipan-mTDlp9Zugs/data/289e63183/4f2ef042816d44778ffd8d781157a160/FLAG1b024b57c [2021-10-16 02:00:05,924 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84eeb40-0cc4-451c-8686-972e2963746b/bin/utaipan-mTDlp9Zugs/data/289e63183/4f2ef042816d44778ffd8d781157a160 [2021-10-16 02:00:05,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:00:05,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:00:05,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:00:05,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:00:05,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:00:05,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:00:05" (1/1) ... [2021-10-16 02:00:05,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fe4ae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:05, skipping insertion in model container [2021-10-16 02:00:05,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:00:05" (1/1) ... [2021-10-16 02:00:05,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:00:05,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:00:06,268 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_e84eeb40-0cc4-451c-8686-972e2963746b/sv-benchmarks/c/weaver/chl-time-symm.wvr.c[2494,2507] [2021-10-16 02:00:06,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:00:06,284 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:00:06,307 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_e84eeb40-0cc4-451c-8686-972e2963746b/sv-benchmarks/c/weaver/chl-time-symm.wvr.c[2494,2507] [2021-10-16 02:00:06,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:00:06,326 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:00:06,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06 WrapperNode [2021-10-16 02:00:06,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:00:06,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:00:06,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:00:06,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:00:06,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:00:06,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:00:06,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:00:06,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:00:06,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:00:06,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:00:06,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:00:06,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:00:06,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (1/1) ... [2021-10-16 02:00:06,491 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:00:06,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84eeb40-0cc4-451c-8686-972e2963746b/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:00:06,523 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84eeb40-0cc4-451c-8686-972e2963746b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:00:06,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84eeb40-0cc4-451c-8686-972e2963746b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:00:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-16 02:00:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-16 02:00:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-16 02:00:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-16 02:00:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:00:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:00:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:00:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-16 02:00:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-16 02:00:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:00:06,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:00:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:00:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:00:06,604 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 02:00:07,755 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:00:07,755 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-16 02:00:07,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:00:07 BoogieIcfgContainer [2021-10-16 02:00:07,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:00:07,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:00:07,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:00:07,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:00:07,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:00:05" (1/3) ... [2021-10-16 02:00:07,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d58b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:00:07, skipping insertion in model container [2021-10-16 02:00:07,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:00:06" (2/3) ... [2021-10-16 02:00:07,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d58b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:00:07, skipping insertion in model container [2021-10-16 02:00:07,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:00:07" (3/3) ... [2021-10-16 02:00:07,777 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-time-symm.wvr.c [2021-10-16 02:00:07,785 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-16 02:00:07,785 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:00:07,786 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:00:07,786 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 02:00:07,833 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,833 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,833 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,834 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,834 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,834 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,835 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,835 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,835 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,835 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,836 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,865 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,865 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,865 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,865 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,865 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,866 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,866 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,866 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,866 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,866 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,866 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,873 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,874 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,875 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,875 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,876 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,876 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,876 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,876 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,877 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,877 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,877 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,877 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,877 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,878 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,878 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,879 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,879 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,879 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,879 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,880 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,880 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,880 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,880 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,880 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,883 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,883 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,890 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,890 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,891 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,891 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,891 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,891 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,892 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,893 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,893 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,893 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,894 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,894 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,896 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,897 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,897 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,897 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,898 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,899 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,900 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:00:07,909 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-16 02:00:07,967 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:00:07,980 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 02:00:07,981 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-16 02:00:08,005 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-16 02:00:08,018 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 96 transitions, 208 flow [2021-10-16 02:00:08,022 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 96 transitions, 208 flow [2021-10-16 02:00:08,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 96 transitions, 208 flow [2021-10-16 02:00:08,091 INFO L129 PetriNetUnfolder]: 5/94 cut-off events. [2021-10-16 02:00:08,092 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-16 02:00:08,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 94 events. 5/94 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-10-16 02:00:08,097 INFO L116 LiptonReduction]: Number of co-enabled transitions 108 [2021-10-16 02:00:14,709 INFO L131 LiptonReduction]: Checked pairs total: 170 [2021-10-16 02:00:14,710 INFO L133 LiptonReduction]: Total number of compositions: 95 [2021-10-16 02:00:14,717 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 14 transitions, 44 flow [2021-10-16 02:00:14,727 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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 02:00:14,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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 02:00:14,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:00:14,734 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:14,735 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:14,735 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 02:00:14,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:14,740 INFO L82 PathProgramCache]: Analyzing trace with hash 747174930, now seen corresponding path program 1 times [2021-10-16 02:00:14,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:00:14,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376070552] [2021-10-16 02:00:14,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:14,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:00:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:15,346 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 02:00:15,346 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:00:15,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376070552] [2021-10-16 02:00:15,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376070552] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:15,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:15,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:00:15,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118168906] [2021-10-16 02:00:15,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:15,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:00:15,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:15,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:15,380 INFO L87 Difference]: Start difference. First operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 02:00:15,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:15,465 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2021-10-16 02:00:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:15,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 02:00:15,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:15,478 INFO L225 Difference]: With dead ends: 25 [2021-10-16 02:00:15,478 INFO L226 Difference]: Without dead ends: 14 [2021-10-16 02:00:15,479 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 78.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:00:15,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-16 02:00:15,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-16 02:00:15,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 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 02:00:15,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-10-16 02:00:15,510 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2021-10-16 02:00:15,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:15,511 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-10-16 02:00:15,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 02:00:15,513 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-10-16 02:00:15,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:00:15,514 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:00:15,514 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:00:15,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:00:15,515 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-16 02:00:15,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:00:15,516 INFO L82 PathProgramCache]: Analyzing trace with hash 124374862, now seen corresponding path program 2 times [2021-10-16 02:00:15,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:00:15,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249677899] [2021-10-16 02:00:15,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:00:15,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:00:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:00:15,782 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 02:00:15,782 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:00:15,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249677899] [2021-10-16 02:00:15,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249677899] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:00:15,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:00:15,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:00:15,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933923443] [2021-10-16 02:00:15,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:00:15,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:00:15,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:00:15,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:00:15,786 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 02:00:15,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:00:15,825 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-10-16 02:00:15,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:00:15,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 02:00:15,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:00:15,826 INFO L225 Difference]: With dead ends: 13 [2021-10-16 02:00:15,826 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:00:15,827 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:00:15,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:00:15,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:00:15,828 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 02:00:15,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:00:15,828 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-16 02:00:15,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:00:15,828 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:00:15,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 02:00:15,829 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:00:15,829 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:00:15,831 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:00:15,832 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 02:00:15,833 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-16 02:00:15,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:00:15,838 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 02:00:15,838 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:00:15,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:00:15 BasicIcfg [2021-10-16 02:00:15,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:00:15,841 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:00:15,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:00:15,842 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:00:15,842 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:00:07" (3/4) ... [2021-10-16 02:00:15,846 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:00:15,852 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-16 02:00:15,852 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-16 02:00:15,860 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-16 02:00:15,860 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 02:00:15,861 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:00:15,861 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:00:15,925 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84eeb40-0cc4-451c-8686-972e2963746b/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:00:15,926 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:00:15,928 INFO L168 Benchmark]: Toolchain (without parser) took 9992.33 ms. Allocated memory was 109.1 MB in the beginning and 148.9 MB in the end (delta: 39.8 MB). Free memory was 75.4 MB in the beginning and 62.7 MB in the end (delta: 12.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:15,928 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory was 58.1 MB in the beginning and 58.1 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:00:15,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.19 ms. Allocated memory is still 109.1 MB. Free memory was 75.0 MB in the beginning and 86.3 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:15,930 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.65 ms. Allocated memory is still 109.1 MB. Free memory was 86.3 MB in the beginning and 84.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:15,930 INFO L168 Benchmark]: Boogie Preprocessor took 70.19 ms. Allocated memory is still 109.1 MB. Free memory was 84.2 MB in the beginning and 83.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:00:15,930 INFO L168 Benchmark]: RCFGBuilder took 1292.93 ms. Allocated memory is still 109.1 MB. Free memory was 83.0 MB in the beginning and 42.1 MB in the end (delta: 41.0 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:15,931 INFO L168 Benchmark]: TraceAbstraction took 8074.00 ms. Allocated memory was 109.1 MB in the beginning and 148.9 MB in the end (delta: 39.8 MB). Free memory was 41.5 MB in the beginning and 65.8 MB in the end (delta: -24.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:15,931 INFO L168 Benchmark]: Witness Printer took 84.46 ms. Allocated memory is still 148.9 MB. Free memory was 65.8 MB in the beginning and 62.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:00:15,934 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory was 58.1 MB in the beginning and 58.1 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 390.19 ms. Allocated memory is still 109.1 MB. Free memory was 75.0 MB in the beginning and 86.3 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.65 ms. Allocated memory is still 109.1 MB. Free memory was 86.3 MB in the beginning and 84.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.19 ms. Allocated memory is still 109.1 MB. Free memory was 84.2 MB in the beginning and 83.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1292.93 ms. Allocated memory is still 109.1 MB. Free memory was 83.0 MB in the beginning and 42.1 MB in the end (delta: 41.0 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8074.00 ms. Allocated memory was 109.1 MB in the beginning and 148.9 MB in the end (delta: 39.8 MB). Free memory was 41.5 MB in the beginning and 65.8 MB in the end (delta: -24.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * Witness Printer took 84.46 ms. Allocated memory is still 148.9 MB. Free memory was 65.8 MB in the beginning and 62.7 MB in the end (delta: 3.1 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: 6687.6ms, 98 PlacesBefore, 21 PlacesAfterwards, 96 TransitionsBefore, 14 TransitionsAfterwards, 108 CoEnabledTransitionPairs, 7 FixpointIterations, 69 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 0 ConcurrentYvCompositions, 5 ChoiceCompositions, 95 TotalNumberOfCompositions, 170 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170, positive: 170, positive conditional: 0, positive unconditional: 170, 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: 82, positive: 82, positive conditional: 0, positive unconditional: 82, 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: 82, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 170, positive: 88, positive conditional: 0, positive unconditional: 88, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 82, unknown conditional: 0, unknown unconditional: 82] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, 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: 80]: 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, 102 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 7872.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.7ms, AutomataDifference: 164.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6746.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 27 SDtfs, 13 SDslu, 23 SDs, 0 SdLazy, 12 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 33.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 115.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 16.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.5ms SsaConstructionTime, 297.5ms SatisfiabilityAnalysisTime, 469.6ms InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 359 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-16 02:00:15,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e84eeb40-0cc4-451c-8686-972e2963746b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...