./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/peterson.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-atomic/peterson.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee3d1a41e169e13d6fb9bc974b1d8f7c8de5421cb2dfbc7e3d9a400662188398 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 02:49:45,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 02:49:45,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 02:49:45,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 02:49:45,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 02:49:45,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 02:49:45,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 02:49:45,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 02:49:45,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 02:49:45,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 02:49:45,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 02:49:45,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 02:49:45,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 02:49:45,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 02:49:45,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 02:49:45,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 02:49:45,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 02:49:45,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 02:49:45,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 02:49:45,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 02:49:45,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 02:49:45,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 02:49:45,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 02:49:45,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 02:49:45,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 02:49:45,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 02:49:45,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 02:49:45,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 02:49:45,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 02:49:45,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 02:49:45,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 02:49:45,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 02:49:45,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 02:49:45,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 02:49:45,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 02:49:45,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 02:49:45,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 02:49:45,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 02:49:45,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 02:49:45,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 02:49:45,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 02:49:45,585 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-10-29 02:49:45,610 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 02:49:45,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 02:49:45,611 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-29 02:49:45,611 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-29 02:49:45,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 02:49:45,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 02:49:45,613 INFO L138 SettingsManager]: * Use SBE=true [2021-10-29 02:49:45,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 02:49:45,614 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 02:49:45,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 02:49:45,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 02:49:45,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 02:49:45,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 02:49:45,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 02:49:45,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 02:49:45,617 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 02:49:45,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 02:49:45,617 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 02:49:45,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 02:49:45,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 02:49:45,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 02:49:45,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-29 02:49:45,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 02:49:45,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 02:49:45,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 02:49:45,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 02:49:45,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 02:49:45,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-29 02:49:45,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 02:49:45,621 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-29 02:49:45,622 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-29 02:49:45,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 02:49:45,622 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-29 02:49:45,623 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-29 02:49:45,623 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee3d1a41e169e13d6fb9bc974b1d8f7c8de5421cb2dfbc7e3d9a400662188398 [2021-10-29 02:49:45,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 02:49:45,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 02:49:45,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 02:49:45,914 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 02:49:45,915 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 02:49:45,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/../../sv-benchmarks/c/pthread-atomic/peterson.i [2021-10-29 02:49:45,988 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/data/a4353895c/ca293370637242fabad3fb81d2220d89/FLAGdfeae34e3 [2021-10-29 02:49:46,597 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 02:49:46,598 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/sv-benchmarks/c/pthread-atomic/peterson.i [2021-10-29 02:49:46,626 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/data/a4353895c/ca293370637242fabad3fb81d2220d89/FLAGdfeae34e3 [2021-10-29 02:49:46,888 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/data/a4353895c/ca293370637242fabad3fb81d2220d89 [2021-10-29 02:49:46,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 02:49:46,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 02:49:46,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 02:49:46,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 02:49:46,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 02:49:46,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:49:46" (1/1) ... [2021-10-29 02:49:46,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f8cda26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:49:46, skipping insertion in model container [2021-10-29 02:49:46,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:49:46" (1/1) ... [2021-10-29 02:49:46,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 02:49:46,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 02:49:47,212 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-29 02:49:47,444 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_8c3f6898-e945-4772-82c3-0c8c23d1e193/sv-benchmarks/c/pthread-atomic/peterson.i[30997,31010] [2021-10-29 02:49:47,458 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_8c3f6898-e945-4772-82c3-0c8c23d1e193/sv-benchmarks/c/pthread-atomic/peterson.i[31682,31695] [2021-10-29 02:49:47,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 02:49:47,480 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 02:49:47,506 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-29 02:49:47,540 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_8c3f6898-e945-4772-82c3-0c8c23d1e193/sv-benchmarks/c/pthread-atomic/peterson.i[30997,31010] [2021-10-29 02:49:47,548 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_8c3f6898-e945-4772-82c3-0c8c23d1e193/sv-benchmarks/c/pthread-atomic/peterson.i[31682,31695] [2021-10-29 02:49:47,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 02:49:47,607 INFO L208 MainTranslator]: Completed translation [2021-10-29 02:49:47,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:49:47 WrapperNode [2021-10-29 02:49:47,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 02:49:47,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 02:49:47,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 02:49:47,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 02:49:47,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:49:47" (1/1) ... [2021-10-29 02:49:47,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:49:47" (1/1) ... [2021-10-29 02:49:47,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 02:49:47,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 02:49:47,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 02:49:47,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 02:49:47,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:49:47" (1/1) ... [2021-10-29 02:49:47,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:49:47" (1/1) ... [2021-10-29 02:49:47,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:49:47" (1/1) ... [2021-10-29 02:49:47,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:49:47" (1/1) ... [2021-10-29 02:49:47,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:49:47" (1/1) ... [2021-10-29 02:49:47,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:49:47" (1/1) ... [2021-10-29 02:49:47,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:49:47" (1/1) ... [2021-10-29 02:49:47,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 02:49:47,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 02:49:47,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 02:49:47,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 02:49:47,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:49:47" (1/1) ... [2021-10-29 02:49:47,748 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 02:49:47,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/z3 [2021-10-29 02:49:47,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 02:49:47,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 02:49:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 02:49:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-10-29 02:49:47,829 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-10-29 02:49:47,830 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-10-29 02:49:47,830 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-10-29 02:49:47,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 02:49:47,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-29 02:49:47,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 02:49:47,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 02:49:47,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 02:49:47,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-29 02:49:47,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 02:49:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 02:49:47,835 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-29 02:49:48,204 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 02:49:48,205 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-29 02:49:48,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:49:48 BoogieIcfgContainer [2021-10-29 02:49:48,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 02:49:48,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 02:49:48,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 02:49:48,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 02:49:48,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 02:49:46" (1/3) ... [2021-10-29 02:49:48,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a0e86bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 02:49:48, skipping insertion in model container [2021-10-29 02:49:48,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:49:47" (2/3) ... [2021-10-29 02:49:48,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a0e86bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 02:49:48, skipping insertion in model container [2021-10-29 02:49:48,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:49:48" (3/3) ... [2021-10-29 02:49:48,218 INFO L111 eAbstractionObserver]: Analyzing ICFG peterson.i [2021-10-29 02:49:48,228 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-29 02:49:48,228 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 02:49:48,229 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-29 02:49:48,229 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 02:49:48,274 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,274 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,274 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,275 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,275 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,275 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,275 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,276 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,277 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,277 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,278 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,278 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,279 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,279 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,279 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,280 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,280 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,281 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,281 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,281 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,282 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,283 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,283 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,284 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,284 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,285 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,285 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,285 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,302 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,302 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,302 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,302 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,315 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,315 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,316 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,316 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,316 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,316 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,323 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,324 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,324 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,324 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,326 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,329 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 02:49:48,347 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-29 02:49:48,410 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-29 02:49:48,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/z3 [2021-10-29 02:49:48,414 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-29 02:49:48,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-29 02:49:48,455 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2021-10-29 02:49:48,461 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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 [2021-10-29 02:49:48,462 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 02:49:48,579 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 02:49:48,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 02:49:48,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1171315250, now seen corresponding path program 1 times [2021-10-29 02:49:48,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 02:49:48,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671397482] [2021-10-29 02:49:48,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 02:49:48,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:49:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:49:48,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:49:48,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 02:49:48,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671397482] [2021-10-29 02:49:48,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671397482] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 02:49:48,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 02:49:48,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 02:49:48,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201749811] [2021-10-29 02:49:48,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 02:49:48,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 02:49:48,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 02:49:48,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 02:49:48,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:48,853 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-29 02:49:48,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 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) [2021-10-29 02:49:48,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:48,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:48,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 02:49:48,866 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 02:49:48,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 02:49:48,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1171345041, now seen corresponding path program 1 times [2021-10-29 02:49:48,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 02:49:48,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411805384] [2021-10-29 02:49:48,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 02:49:48,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:49:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:49:49,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:49:49,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 02:49:49,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411805384] [2021-10-29 02:49:49,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411805384] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 02:49:49,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 02:49:49,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 02:49:49,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642267330] [2021-10-29 02:49:49,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 02:49:49,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 02:49:49,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 02:49:49,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 02:49:49,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:49,008 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-29 02:49:49,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2021-10-29 02:49:49,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:49,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:49,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:49,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:49,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 02:49:49,076 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 02:49:49,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 02:49:49,077 INFO L85 PathProgramCache]: Analyzing trace with hash -621549758, now seen corresponding path program 1 times [2021-10-29 02:49:49,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 02:49:49,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362780318] [2021-10-29 02:49:49,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 02:49:49,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:49:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:49:49,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:49:49,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 02:49:49,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362780318] [2021-10-29 02:49:49,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362780318] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 02:49:49,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 02:49:49,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 02:49:49,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605509599] [2021-10-29 02:49:49,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 02:49:49,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 02:49:49,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 02:49:49,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-29 02:49:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:49,286 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-29 02:49:49,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2021-10-29 02:49:49,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:49,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:49,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:49,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:49,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:49,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 02:49:49,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 02:49:49,612 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 02:49:49,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 02:49:49,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1877536102, now seen corresponding path program 2 times [2021-10-29 02:49:49,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 02:49:49,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952939243] [2021-10-29 02:49:49,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 02:49:49,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:49:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:49:49,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:49:49,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 02:49:49,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952939243] [2021-10-29 02:49:49,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952939243] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 02:49:49,773 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 02:49:49,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 02:49:49,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132431639] [2021-10-29 02:49:49,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 02:49:49,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 02:49:49,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 02:49:49,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-29 02:49:49,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:49,775 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-29 02:49:49,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2021-10-29 02:49:49,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:49,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:49,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-29 02:49:49,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:50,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 02:49:50,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 02:49:50,096 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 02:49:50,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 02:49:50,115 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2021-10-29 02:49:50,116 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/3) [2021-10-29 02:49:50,120 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-29 02:49:50,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/z3 [2021-10-29 02:49:50,122 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-29 02:49:50,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2021-10-29 02:49:50,134 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-29 02:49:50,135 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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 [2021-10-29 02:49:50,135 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-29 02:49:50,193 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 02:49:50,194 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-29 02:49:50,196 INFO L731 BasicCegarLoop]: Path program histogram: [] [2021-10-29 02:49:50,196 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2021-10-29 02:49:50,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-29 02:49:50,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/z3 [2021-10-29 02:49:50,236 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-29 02:49:50,240 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr2Thread1of1ForFork1 ======== [2021-10-29 02:49:50,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2021-10-29 02:49:50,241 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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 [2021-10-29 02:49:50,241 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 02:49:50,314 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 02:49:50,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 02:49:50,315 INFO L85 PathProgramCache]: Analyzing trace with hash -166179900, now seen corresponding path program 1 times [2021-10-29 02:49:50,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 02:49:50,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318012356] [2021-10-29 02:49:50,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 02:49:50,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:49:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:49:50,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:49:50,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 02:49:50,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318012356] [2021-10-29 02:49:50,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318012356] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 02:49:50,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 02:49:50,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 02:49:50,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129101370] [2021-10-29 02:49:50,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 02:49:50,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 02:49:50,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 02:49:50,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 02:49:50,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,353 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-29 02:49:50,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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) [2021-10-29 02:49:50,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 02:49:50,356 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 02:49:50,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 02:49:50,357 INFO L85 PathProgramCache]: Analyzing trace with hash -671708734, now seen corresponding path program 1 times [2021-10-29 02:49:50,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 02:49:50,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017102093] [2021-10-29 02:49:50,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 02:49:50,358 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:49:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:49:50,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:49:50,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 02:49:50,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017102093] [2021-10-29 02:49:50,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017102093] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 02:49:50,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 02:49:50,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 02:49:50,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589637027] [2021-10-29 02:49:50,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 02:49:50,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 02:49:50,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 02:49:50,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 02:49:50,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,437 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-29 02:49:50,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-10-29 02:49:50,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:50,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 02:49:50,462 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 02:49:50,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 02:49:50,463 INFO L85 PathProgramCache]: Analyzing trace with hash -2086562396, now seen corresponding path program 1 times [2021-10-29 02:49:50,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 02:49:50,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226566295] [2021-10-29 02:49:50,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 02:49:50,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:49:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:49:50,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:49:50,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 02:49:50,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226566295] [2021-10-29 02:49:50,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226566295] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 02:49:50,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 02:49:50,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 02:49:50,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665432118] [2021-10-29 02:49:50,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 02:49:50,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 02:49:50,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 02:49:50,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 02:49:50,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,501 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-29 02:49:50,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-10-29 02:49:50,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:50,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:50,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:50,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-29 02:49:50,556 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 02:49:50,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 02:49:50,557 INFO L85 PathProgramCache]: Analyzing trace with hash -323465946, now seen corresponding path program 1 times [2021-10-29 02:49:50,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 02:49:50,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514821822] [2021-10-29 02:49:50,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 02:49:50,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:49:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:49:50,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:49:50,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 02:49:50,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514821822] [2021-10-29 02:49:50,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514821822] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 02:49:50,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 02:49:50,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 02:49:50,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600493792] [2021-10-29 02:49:50,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 02:49:50,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 02:49:50,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 02:49:50,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-29 02:49:50,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,657 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-29 02:49:50,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2021-10-29 02:49:50,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:50,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:50,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:50,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:50,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 02:49:50,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-29 02:49:50,815 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 02:49:50,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 02:49:50,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1392742704, now seen corresponding path program 1 times [2021-10-29 02:49:50,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 02:49:50,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096088243] [2021-10-29 02:49:50,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 02:49:50,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:49:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:49:50,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:49:50,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 02:49:50,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096088243] [2021-10-29 02:49:50,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096088243] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 02:49:50,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 02:49:50,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 02:49:50,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300091114] [2021-10-29 02:49:50,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 02:49:50,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 02:49:50,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 02:49:50,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-29 02:49:50,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,881 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-29 02:49:50,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2021-10-29 02:49:50,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:50,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:50,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-29 02:49:50,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 02:49:50,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:50,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 02:49:50,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 02:49:50,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 02:49:50,975 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 02:49:50,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-29 02:49:50,977 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-10-29 02:49:50,978 INFO L308 ceAbstractionStarter]: Result for error location thr2Thread1of1ForFork1 was SAFE (3/3) [2021-10-29 02:49:50,978 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 02:49:50,978 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 02:49:50,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 02:49:50 BasicIcfg [2021-10-29 02:49:50,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 02:49:50,982 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 02:49:50,982 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 02:49:50,982 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 02:49:50,983 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:49:48" (3/4) ... [2021-10-29 02:49:50,985 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 02:49:50,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2021-10-29 02:49:50,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2021-10-29 02:49:50,996 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-29 02:49:50,997 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 02:49:50,997 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 02:49:50,997 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 02:49:51,023 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/witness.graphml [2021-10-29 02:49:51,024 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 02:49:51,025 INFO L168 Benchmark]: Toolchain (without parser) took 4132.71 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 77.2 MB in the beginning and 50.2 MB in the end (delta: 27.0 MB). Peak memory consumption was 59.8 MB. Max. memory is 16.1 GB. [2021-10-29 02:49:51,026 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 117.4 MB. Free memory is still 94.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 02:49:51,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.81 ms. Allocated memory is still 117.4 MB. Free memory was 77.0 MB in the beginning and 81.9 MB in the end (delta: -4.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 02:49:51,027 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.08 ms. Allocated memory is still 117.4 MB. Free memory was 81.9 MB in the beginning and 79.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 02:49:51,027 INFO L168 Benchmark]: Boogie Preprocessor took 52.62 ms. Allocated memory is still 117.4 MB. Free memory was 79.8 MB in the beginning and 78.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 02:49:51,027 INFO L168 Benchmark]: RCFGBuilder took 469.59 ms. Allocated memory is still 117.4 MB. Free memory was 78.2 MB in the beginning and 66.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 02:49:51,028 INFO L168 Benchmark]: TraceAbstraction took 2772.56 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 66.2 MB in the beginning and 53.3 MB in the end (delta: 12.8 MB). Peak memory consumption was 47.4 MB. Max. memory is 16.1 GB. [2021-10-29 02:49:51,028 INFO L168 Benchmark]: Witness Printer took 42.13 ms. Allocated memory is still 151.0 MB. Free memory was 53.3 MB in the beginning and 50.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 02:49:51,031 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 117.4 MB. Free memory is still 94.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 704.81 ms. Allocated memory is still 117.4 MB. Free memory was 77.0 MB in the beginning and 81.9 MB in the end (delta: -4.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.08 ms. Allocated memory is still 117.4 MB. Free memory was 81.9 MB in the beginning and 79.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.62 ms. Allocated memory is still 117.4 MB. Free memory was 79.8 MB in the beginning and 78.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 469.59 ms. Allocated memory is still 117.4 MB. Free memory was 78.2 MB in the beginning and 66.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2772.56 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 66.2 MB in the beginning and 53.3 MB in the end (delta: 12.8 MB). Peak memory consumption was 47.4 MB. Max. memory is 16.1 GB. * Witness Printer took 42.13 ms. Allocated memory is still 151.0 MB. Free memory was 53.3 MB in the beginning and 50.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4310, positive: 3795, positive conditional: 2579, positive unconditional: 1216, negative: 515, negative conditional: 485, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3943, positive: 3795, positive conditional: 2579, positive unconditional: 1216, negative: 148, negative conditional: 118, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3943, positive: 3795, positive conditional: 2579, positive unconditional: 1216, negative: 148, negative conditional: 118, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4225, positive: 3795, positive conditional: 2545, positive unconditional: 1250, negative: 430, negative conditional: 282, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4225, positive: 3795, positive conditional: 1126, positive unconditional: 2669, negative: 430, negative conditional: 36, negative unconditional: 394, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4225, positive: 3795, positive conditional: 1126, positive unconditional: 2669, negative: 430, negative conditional: 36, negative unconditional: 394, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1162, positive: 1127, positive conditional: 3, positive unconditional: 1124, negative: 35, negative conditional: 5, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1162, positive: 1124, positive conditional: 0, positive unconditional: 1124, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 35, negative conditional: 5, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 9, positive conditional: 2, positive unconditional: 7, negative: 100, negative conditional: 14, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4225, positive: 2668, positive conditional: 1123, positive unconditional: 1545, negative: 395, negative conditional: 31, negative unconditional: 364, unknown: 1162, unknown conditional: 8, unknown unconditional: 1154] , Statistics on independence cache: Total cache size (in pairs): 1162, Positive cache size: 1127, Positive conditional cache size: 3, Positive unconditional cache size: 1124, Negative cache size: 35, Negative conditional cache size: 5, Negative unconditional cache size: 30, Eliminated conditions: 1665, Maximal queried relation: 3, Independence queries for same thread: 367 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 225, Number of persistent set computation: 417, Number of trivial persistent sets: 318, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1246, positive: 1216, positive conditional: 0, positive unconditional: 1216, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4310, positive: 3795, positive conditional: 2579, positive unconditional: 1216, negative: 515, negative conditional: 485, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3943, positive: 3795, positive conditional: 2579, positive unconditional: 1216, negative: 148, negative conditional: 118, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3943, positive: 3795, positive conditional: 2579, positive unconditional: 1216, negative: 148, negative conditional: 118, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4225, positive: 3795, positive conditional: 2545, positive unconditional: 1250, negative: 430, negative conditional: 282, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4225, positive: 3795, positive conditional: 1126, positive unconditional: 2669, negative: 430, negative conditional: 36, negative unconditional: 394, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4225, positive: 3795, positive conditional: 1126, positive unconditional: 2669, negative: 430, negative conditional: 36, negative unconditional: 394, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1162, positive: 1127, positive conditional: 3, positive unconditional: 1124, negative: 35, negative conditional: 5, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1162, positive: 1124, positive conditional: 0, positive unconditional: 1124, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 35, negative conditional: 5, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 9, positive conditional: 2, positive unconditional: 7, negative: 100, negative conditional: 14, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4225, positive: 2668, positive conditional: 1123, positive unconditional: 1545, negative: 395, negative conditional: 31, negative unconditional: 364, unknown: 1162, unknown conditional: 8, unknown unconditional: 1154] , Statistics on independence cache: Total cache size (in pairs): 1162, Positive cache size: 1127, Positive conditional cache size: 3, Positive unconditional cache size: 1124, Negative cache size: 35, Negative conditional cache size: 5, Negative unconditional cache size: 30, Eliminated conditions: 1665, Maximal queried relation: 3, Independence queries for same thread: 367 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 302, positive: 301, positive conditional: 6, positive unconditional: 295, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 302, positive: 301, positive conditional: 6, positive unconditional: 295, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 302, positive: 301, positive conditional: 6, positive unconditional: 295, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 302, positive: 301, positive conditional: 0, positive unconditional: 301, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 302, positive: 301, positive conditional: 0, positive unconditional: 301, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 302, positive: 301, positive conditional: 0, positive unconditional: 301, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 296, positive: 295, positive conditional: 0, positive unconditional: 295, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 296, positive: 295, positive conditional: 0, positive unconditional: 295, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 49, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 302, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 296, unknown conditional: 0, unknown unconditional: 296] , Statistics on independence cache: Total cache size (in pairs): 296, Positive cache size: 295, Positive conditional cache size: 0, Positive unconditional cache size: 295, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 53, Number of persistent set computation: 25, Number of trivial persistent sets: 19, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 296, positive: 295, positive conditional: 0, positive unconditional: 295, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 302, positive: 301, positive conditional: 6, positive unconditional: 295, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 302, positive: 301, positive conditional: 6, positive unconditional: 295, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 302, positive: 301, positive conditional: 6, positive unconditional: 295, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 302, positive: 301, positive conditional: 0, positive unconditional: 301, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 302, positive: 301, positive conditional: 0, positive unconditional: 301, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 302, positive: 301, positive conditional: 0, positive unconditional: 301, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 296, positive: 295, positive conditional: 0, positive unconditional: 295, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 296, positive: 295, positive conditional: 0, positive unconditional: 295, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 49, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 302, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 296, unknown conditional: 0, unknown unconditional: 296] , Statistics on independence cache: Total cache size (in pairs): 296, Positive cache size: 295, Positive conditional cache size: 0, Positive unconditional cache size: 295, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4114, positive: 3674, positive conditional: 2472, positive unconditional: 1202, negative: 440, negative conditional: 408, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3811, positive: 3674, positive conditional: 2472, positive unconditional: 1202, negative: 137, negative conditional: 105, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3811, positive: 3674, positive conditional: 2472, positive unconditional: 1202, negative: 137, negative conditional: 105, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4046, positive: 3674, positive conditional: 2412, positive unconditional: 1262, negative: 372, negative conditional: 235, negative unconditional: 137, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4046, positive: 3674, positive conditional: 1043, positive unconditional: 2631, negative: 372, negative conditional: 46, negative unconditional: 326, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4046, positive: 3674, positive conditional: 1043, positive unconditional: 2631, negative: 372, negative conditional: 46, negative unconditional: 326, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1169, positive: 1131, positive conditional: 2, positive unconditional: 1129, negative: 38, negative conditional: 6, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1169, positive: 1126, positive conditional: 0, positive unconditional: 1126, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 5, positive conditional: 2, positive unconditional: 3, negative: 38, negative conditional: 6, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 98, positive: 5, positive conditional: 2, positive unconditional: 3, negative: 94, negative conditional: 7, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4046, positive: 2543, positive conditional: 1041, positive unconditional: 1502, negative: 334, negative conditional: 40, negative unconditional: 294, unknown: 1169, unknown conditional: 8, unknown unconditional: 1161] , Statistics on independence cache: Total cache size (in pairs): 1169, Positive cache size: 1131, Positive conditional cache size: 2, Positive unconditional cache size: 1129, Negative cache size: 38, Negative conditional cache size: 6, Negative unconditional cache size: 32, Eliminated conditions: 1558, Maximal queried relation: 3, Independence queries for same thread: 303 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 134, Number of persistent set computation: 423, Number of trivial persistent sets: 284, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1234, positive: 1202, positive conditional: 0, positive unconditional: 1202, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4114, positive: 3674, positive conditional: 2472, positive unconditional: 1202, negative: 440, negative conditional: 408, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3811, positive: 3674, positive conditional: 2472, positive unconditional: 1202, negative: 137, negative conditional: 105, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3811, positive: 3674, positive conditional: 2472, positive unconditional: 1202, negative: 137, negative conditional: 105, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4046, positive: 3674, positive conditional: 2412, positive unconditional: 1262, negative: 372, negative conditional: 235, negative unconditional: 137, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4046, positive: 3674, positive conditional: 1043, positive unconditional: 2631, negative: 372, negative conditional: 46, negative unconditional: 326, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4046, positive: 3674, positive conditional: 1043, positive unconditional: 2631, negative: 372, negative conditional: 46, negative unconditional: 326, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1169, positive: 1131, positive conditional: 2, positive unconditional: 1129, negative: 38, negative conditional: 6, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1169, positive: 1126, positive conditional: 0, positive unconditional: 1126, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 5, positive conditional: 2, positive unconditional: 3, negative: 38, negative conditional: 6, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 98, positive: 5, positive conditional: 2, positive unconditional: 3, negative: 94, negative conditional: 7, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4046, positive: 2543, positive conditional: 1041, positive unconditional: 1502, negative: 334, negative conditional: 40, negative unconditional: 294, unknown: 1169, unknown conditional: 8, unknown unconditional: 1161] , Statistics on independence cache: Total cache size (in pairs): 1169, Positive cache size: 1131, Positive conditional cache size: 2, Positive unconditional cache size: 1129, Negative cache size: 38, Negative conditional cache size: 6, Negative unconditional cache size: 32, Eliminated conditions: 1558, Maximal queried relation: 3, Independence queries for same thread: 303 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 725]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 753]: 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 for errors in thread instance: thr1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 107 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.8s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 107 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 107 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.4s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 309 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 1/1 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-29 02:49:51,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Ended with exit code 0 [2021-10-29 02:49:51,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Ended with exit code 0 [2021-10-29 02:49:51,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-29 02:49:51,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c3f6898-e945-4772-82c3-0c8c23d1e193/bin/ugemcutter-riF8PgGdml/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...