./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix033.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix033.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb14ef07a6b26c4855460091e3932f356dd44c86cf5744c08658c1a06a447e8e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:29:58,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:29:58,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:29:58,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:29:58,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:29:58,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:29:58,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:29:58,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:29:58,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:29:58,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:29:58,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:29:58,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:29:58,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:29:58,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:29:58,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:29:58,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:29:58,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:29:58,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:29:58,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:29:58,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:29:58,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:29:58,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:29:58,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:29:58,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:29:58,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:29:58,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:29:58,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:29:58,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:29:58,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:29:58,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:29:58,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:29:58,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:29:58,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:29:58,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:29:58,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:29:58,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:29:58,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:29:58,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:29:58,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:29:58,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:29:58,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:29:58,497 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:29:58,548 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:29:58,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:29:58,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:29:58,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:29:58,552 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:29:58,559 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:29:58,559 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:29:58,559 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:29:58,560 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:29:58,560 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:29:58,561 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:29:58,561 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:29:58,562 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:29:58,562 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:29:58,562 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:29:58,562 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:29:58,563 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:29:58,563 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:29:58,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:29:58,564 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:29:58,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:29:58,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:29:58,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:29:58,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:29:58,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:29:58,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:29:58,567 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:29:58,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:29:58,567 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:29:58,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:29:58,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:29:58,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:29:58,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:29:58,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:29:58,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:29:58,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:29:58,570 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:29:58,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:29:58,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:29:58,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:29:58,570 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:29:58,571 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb14ef07a6b26c4855460091e3932f356dd44c86cf5744c08658c1a06a447e8e [2021-11-23 03:29:58,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:29:58,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:29:58,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:29:58,936 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:29:58,937 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:29:58,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/pthread-wmm/mix033.opt.i [2021-11-23 03:29:59,025 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V/data/d896ad928/925b4146cd0145e6a5e0531103acdfe1/FLAG7e7e56f36 [2021-11-23 03:29:59,709 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:29:59,710 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/sv-benchmarks/c/pthread-wmm/mix033.opt.i [2021-11-23 03:29:59,741 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V/data/d896ad928/925b4146cd0145e6a5e0531103acdfe1/FLAG7e7e56f36 [2021-11-23 03:29:59,902 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V/data/d896ad928/925b4146cd0145e6a5e0531103acdfe1 [2021-11-23 03:29:59,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:29:59,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:29:59,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:29:59,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:29:59,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:29:59,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:29:59" (1/1) ... [2021-11-23 03:29:59,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fd149e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:29:59, skipping insertion in model container [2021-11-23 03:29:59,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:29:59" (1/1) ... [2021-11-23 03:29:59,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:29:59,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:30:00,269 WARN L230 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_dbf18378-4beb-4688-ad6c-a6716a175096/sv-benchmarks/c/pthread-wmm/mix033.opt.i[944,957] [2021-11-23 03:30:00,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:30:00,571 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:30:00,585 WARN L230 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_dbf18378-4beb-4688-ad6c-a6716a175096/sv-benchmarks/c/pthread-wmm/mix033.opt.i[944,957] [2021-11-23 03:30:00,643 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:30:00,686 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:30:00,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:00 WrapperNode [2021-11-23 03:30:00,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:30:00,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:30:00,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:30:00,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:30:00,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:00" (1/1) ... [2021-11-23 03:30:00,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:00" (1/1) ... [2021-11-23 03:30:00,769 INFO L137 Inliner]: procedures = 176, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 186 [2021-11-23 03:30:00,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:30:00,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:30:00,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:30:00,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:30:00,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:00" (1/1) ... [2021-11-23 03:30:00,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:00" (1/1) ... [2021-11-23 03:30:00,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:00" (1/1) ... [2021-11-23 03:30:00,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:00" (1/1) ... [2021-11-23 03:30:00,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:00" (1/1) ... [2021-11-23 03:30:00,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:00" (1/1) ... [2021-11-23 03:30:00,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:00" (1/1) ... [2021-11-23 03:30:00,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:30:00,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:30:00,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:30:00,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:30:00,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:00" (1/1) ... [2021-11-23 03:30:00,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:30:00,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:30:00,903 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:30:00,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:30:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:30:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 03:30:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:30:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:30:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:30:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 03:30:00,951 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 03:30:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 03:30:00,951 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 03:30:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 03:30:00,952 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 03:30:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:30:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 03:30:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:30:00,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:30:00,954 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 03:30:01,130 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:30:01,133 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:30:01,788 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:30:02,148 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:30:02,148 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 03:30:02,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:30:02 BoogieIcfgContainer [2021-11-23 03:30:02,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:30:02,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:30:02,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:30:02,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:30:02,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:29:59" (1/3) ... [2021-11-23 03:30:02,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c29a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:30:02, skipping insertion in model container [2021-11-23 03:30:02,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:00" (2/3) ... [2021-11-23 03:30:02,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c29a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:30:02, skipping insertion in model container [2021-11-23 03:30:02,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:30:02" (3/3) ... [2021-11-23 03:30:02,166 INFO L111 eAbstractionObserver]: Analyzing ICFG mix033.opt.i [2021-11-23 03:30:02,173 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 03:30:02,173 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:30:02,174 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 03:30:02,174 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 03:30:02,228 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,229 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,229 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,230 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,231 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,231 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,232 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,232 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,233 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,233 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,233 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,234 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,235 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,235 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,236 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,237 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,237 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,237 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,238 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,238 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,240 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,240 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,240 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,240 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,241 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,241 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,241 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,241 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,242 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,242 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,242 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,242 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,242 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,243 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,243 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,243 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,243 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,244 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,244 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,244 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,245 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,245 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,245 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,245 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,246 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,246 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,246 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,246 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,278 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,279 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,279 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,279 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,279 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,279 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,280 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,280 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,280 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,280 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,282 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,283 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,284 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,284 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,284 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,284 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,285 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,285 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,285 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,285 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,285 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,286 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,286 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,287 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,288 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,291 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,291 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,291 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,291 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,292 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,292 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,293 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,293 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,293 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,300 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,300 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,301 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,301 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,301 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,301 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,301 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,302 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,302 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,303 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,303 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,303 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,303 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,304 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,307 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,307 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,308 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,308 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,309 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,309 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,309 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,309 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,310 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,310 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,310 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,310 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,311 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,311 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,311 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,311 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,312 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,312 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,312 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,312 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,313 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,313 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,313 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,313 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,314 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,314 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,314 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,315 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,315 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,315 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,315 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,315 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,316 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,316 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,316 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,317 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,317 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,317 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,324 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,325 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,325 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,325 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,325 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,326 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,326 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,327 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,327 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,327 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,328 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,328 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,330 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,331 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,331 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,331 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,331 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,332 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,332 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,332 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,332 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,332 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,332 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,332 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,332 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,333 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,333 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,333 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,333 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,333 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,333 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,333 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,333 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,333 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,334 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,334 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,334 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,334 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,334 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,334 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,334 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,334 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,334 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 03:30:02,335 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-23 03:30:02,413 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:30:02,421 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:30:02,421 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-23 03:30:02,439 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-23 03:30:02,459 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 121 transitions, 257 flow [2021-11-23 03:30:02,462 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 121 transitions, 257 flow [2021-11-23 03:30:02,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 121 transitions, 257 flow [2021-11-23 03:30:02,563 INFO L129 PetriNetUnfolder]: 2/118 cut-off events. [2021-11-23 03:30:02,564 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-23 03:30:02,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 118 events. 2/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2021-11-23 03:30:02,574 INFO L116 LiptonReduction]: Number of co-enabled transitions 2240 [2021-11-23 03:30:08,669 INFO L131 LiptonReduction]: Checked pairs total: 5441 [2021-11-23 03:30:08,670 INFO L133 LiptonReduction]: Total number of compositions: 105 [2021-11-23 03:30:08,680 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 28 transitions, 71 flow [2021-11-23 03:30:08,754 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 790 states, 787 states have (on average 3.335451080050826) internal successors, (2625), 789 states have internal predecessors, (2625), 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) [2021-11-23 03:30:08,760 INFO L276 IsEmpty]: Start isEmpty. Operand has 790 states, 787 states have (on average 3.335451080050826) internal successors, (2625), 789 states have internal predecessors, (2625), 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) [2021-11-23 03:30:08,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 03:30:08,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:30:08,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:30:08,768 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-23 03:30:08,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:30:08,775 INFO L85 PathProgramCache]: Analyzing trace with hash -405699676, now seen corresponding path program 1 times [2021-11-23 03:30:08,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:30:08,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733498733] [2021-11-23 03:30:08,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:30:08,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:30:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:30:09,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:30:09,170 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:30:09,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733498733] [2021-11-23 03:30:09,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733498733] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:30:09,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:30:09,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 03:30:09,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258763261] [2021-11-23 03:30:09,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:30:09,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:30:09,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:30:09,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:30:09,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:30:09,205 INFO L87 Difference]: Start difference. First operand has 790 states, 787 states have (on average 3.335451080050826) internal successors, (2625), 789 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-23 03:30:09,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:30:09,366 INFO L93 Difference]: Finished difference Result 670 states and 2079 transitions. [2021-11-23 03:30:09,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:30:09,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-23 03:30:09,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:30:09,405 INFO L225 Difference]: With dead ends: 670 [2021-11-23 03:30:09,406 INFO L226 Difference]: Without dead ends: 650 [2021-11-23 03:30:09,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:30:09,412 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 10 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:30:09,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 6 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:30:09,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2021-11-23 03:30:09,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2021-11-23 03:30:09,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 649 states have (on average 3.1248073959938365) internal successors, (2028), 649 states have internal predecessors, (2028), 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) [2021-11-23 03:30:09,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 2028 transitions. [2021-11-23 03:30:09,531 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 2028 transitions. Word has length 7 [2021-11-23 03:30:09,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:30:09,532 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 2028 transitions. [2021-11-23 03:30:09,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-23 03:30:09,540 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 2028 transitions. [2021-11-23 03:30:09,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 03:30:09,544 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:30:09,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:30:09,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:30:09,545 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-23 03:30:09,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:30:09,550 INFO L85 PathProgramCache]: Analyzing trace with hash -158649535, now seen corresponding path program 1 times [2021-11-23 03:30:09,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:30:09,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224873380] [2021-11-23 03:30:09,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:30:09,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:30:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:30:09,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:30:09,739 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:30:09,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224873380] [2021-11-23 03:30:09,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224873380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:30:09,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:30:09,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:30:09,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998373677] [2021-11-23 03:30:09,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:30:09,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:30:09,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:30:09,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:30:09,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:30:09,743 INFO L87 Difference]: Start difference. First operand 650 states and 2028 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-11-23 03:30:09,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:30:09,892 INFO L93 Difference]: Finished difference Result 674 states and 2018 transitions. [2021-11-23 03:30:09,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:30:09,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-23 03:30:09,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:30:09,903 INFO L225 Difference]: With dead ends: 674 [2021-11-23 03:30:09,903 INFO L226 Difference]: Without dead ends: 554 [2021-11-23 03:30:09,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:30:09,907 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 30 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:30:09,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 15 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:30:09,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2021-11-23 03:30:09,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2021-11-23 03:30:09,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 553 states have (on average 3.0452079566003616) internal successors, (1684), 553 states have internal predecessors, (1684), 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) [2021-11-23 03:30:09,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1684 transitions. [2021-11-23 03:30:09,957 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1684 transitions. Word has length 10 [2021-11-23 03:30:09,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:30:09,957 INFO L470 AbstractCegarLoop]: Abstraction has 554 states and 1684 transitions. [2021-11-23 03:30:09,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-11-23 03:30:09,957 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1684 transitions. [2021-11-23 03:30:09,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 03:30:09,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:30:09,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:30:09,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:30:09,998 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-23 03:30:09,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:30:09,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2139721293, now seen corresponding path program 1 times [2021-11-23 03:30:09,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:30:09,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625737150] [2021-11-23 03:30:10,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:30:10,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:30:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:30:10,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:30:10,103 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:30:10,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625737150] [2021-11-23 03:30:10,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625737150] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:30:10,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:30:10,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:30:10,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673461326] [2021-11-23 03:30:10,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:30:10,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:30:10,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:30:10,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:30:10,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:30:10,109 INFO L87 Difference]: Start difference. First operand 554 states and 1684 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-11-23 03:30:10,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:30:10,229 INFO L93 Difference]: Finished difference Result 578 states and 1706 transitions. [2021-11-23 03:30:10,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:30:10,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-23 03:30:10,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:30:10,235 INFO L225 Difference]: With dead ends: 578 [2021-11-23 03:30:10,236 INFO L226 Difference]: Without dead ends: 506 [2021-11-23 03:30:10,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:30:10,240 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 22 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:30:10,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 13 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:30:10,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2021-11-23 03:30:10,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2021-11-23 03:30:10,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 3.00990099009901) internal successors, (1520), 505 states have internal predecessors, (1520), 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) [2021-11-23 03:30:10,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 1520 transitions. [2021-11-23 03:30:10,271 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 1520 transitions. Word has length 12 [2021-11-23 03:30:10,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:30:10,271 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 1520 transitions. [2021-11-23 03:30:10,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-11-23 03:30:10,271 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 1520 transitions. [2021-11-23 03:30:10,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 03:30:10,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:30:10,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:30:10,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:30:10,275 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-23 03:30:10,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:30:10,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1017182533, now seen corresponding path program 1 times [2021-11-23 03:30:10,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:30:10,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048025285] [2021-11-23 03:30:10,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:30:10,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:30:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:30:10,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:30:10,446 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:30:10,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048025285] [2021-11-23 03:30:10,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048025285] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:30:10,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:30:10,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:30:10,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810568866] [2021-11-23 03:30:10,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:30:10,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:30:10,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:30:10,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:30:10,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:30:10,449 INFO L87 Difference]: Start difference. First operand 506 states and 1520 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-11-23 03:30:10,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:30:10,589 INFO L93 Difference]: Finished difference Result 470 states and 1242 transitions. [2021-11-23 03:30:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:30:10,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-23 03:30:10,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:30:10,593 INFO L225 Difference]: With dead ends: 470 [2021-11-23 03:30:10,594 INFO L226 Difference]: Without dead ends: 350 [2021-11-23 03:30:10,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:30:10,595 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 31 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:30:10,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 15 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:30:10,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-11-23 03:30:10,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2021-11-23 03:30:10,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 349 states have (on average 2.567335243553009) internal successors, (896), 349 states have internal predecessors, (896), 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) [2021-11-23 03:30:10,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 896 transitions. [2021-11-23 03:30:10,613 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 896 transitions. Word has length 14 [2021-11-23 03:30:10,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:30:10,614 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 896 transitions. [2021-11-23 03:30:10,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-11-23 03:30:10,614 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 896 transitions. [2021-11-23 03:30:10,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 03:30:10,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:30:10,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:30:10,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:30:10,616 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-23 03:30:10,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:30:10,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1321063804, now seen corresponding path program 1 times [2021-11-23 03:30:10,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:30:10,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333997610] [2021-11-23 03:30:10,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:30:10,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:30:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:30:10,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:30:10,835 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:30:10,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333997610] [2021-11-23 03:30:10,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333997610] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:30:10,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:30:10,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:30:10,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176008911] [2021-11-23 03:30:10,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:30:10,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:30:10,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:30:10,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:30:10,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:30:10,838 INFO L87 Difference]: Start difference. First operand 350 states and 896 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-11-23 03:30:11,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:30:11,032 INFO L93 Difference]: Finished difference Result 274 states and 641 transitions. [2021-11-23 03:30:11,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:30:11,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-23 03:30:11,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:30:11,035 INFO L225 Difference]: With dead ends: 274 [2021-11-23 03:30:11,035 INFO L226 Difference]: Without dead ends: 214 [2021-11-23 03:30:11,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:30:11,037 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 49 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:30:11,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 21 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:30:11,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-23 03:30:11,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-11-23 03:30:11,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 2.291079812206573) internal successors, (488), 213 states have internal predecessors, (488), 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) [2021-11-23 03:30:11,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 488 transitions. [2021-11-23 03:30:11,049 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 488 transitions. Word has length 16 [2021-11-23 03:30:11,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:30:11,050 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 488 transitions. [2021-11-23 03:30:11,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-11-23 03:30:11,050 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 488 transitions. [2021-11-23 03:30:11,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 03:30:11,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:30:11,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:30:11,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:30:11,052 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-23 03:30:11,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:30:11,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1828938716, now seen corresponding path program 1 times [2021-11-23 03:30:11,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:30:11,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821003923] [2021-11-23 03:30:11,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:30:11,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:30:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:30:11,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:30:11,226 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:30:11,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821003923] [2021-11-23 03:30:11,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821003923] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:30:11,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:30:11,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:30:11,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146977749] [2021-11-23 03:30:11,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:30:11,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:30:11,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:30:11,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:30:11,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:30:11,229 INFO L87 Difference]: Start difference. First operand 214 states and 488 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-11-23 03:30:11,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:30:11,402 INFO L93 Difference]: Finished difference Result 187 states and 432 transitions. [2021-11-23 03:30:11,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:30:11,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-23 03:30:11,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:30:11,405 INFO L225 Difference]: With dead ends: 187 [2021-11-23 03:30:11,405 INFO L226 Difference]: Without dead ends: 174 [2021-11-23 03:30:11,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:30:11,406 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 48 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:30:11,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 21 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:30:11,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-11-23 03:30:11,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2021-11-23 03:30:11,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 2.3583815028901736) internal successors, (408), 173 states have internal predecessors, (408), 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) [2021-11-23 03:30:11,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 408 transitions. [2021-11-23 03:30:11,416 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 408 transitions. Word has length 19 [2021-11-23 03:30:11,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:30:11,416 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 408 transitions. [2021-11-23 03:30:11,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-11-23 03:30:11,417 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 408 transitions. [2021-11-23 03:30:11,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 03:30:11,418 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:30:11,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:30:11,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:30:11,419 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-23 03:30:11,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:30:11,420 INFO L85 PathProgramCache]: Analyzing trace with hash 480407204, now seen corresponding path program 1 times [2021-11-23 03:30:11,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:30:11,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190429026] [2021-11-23 03:30:11,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:30:11,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:30:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:30:11,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:30:11,662 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:30:11,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190429026] [2021-11-23 03:30:11,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190429026] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:30:11,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:30:11,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 03:30:11,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907271111] [2021-11-23 03:30:11,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:30:11,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 03:30:11,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:30:11,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 03:30:11,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:30:11,665 INFO L87 Difference]: Start difference. First operand 174 states and 408 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 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) [2021-11-23 03:30:11,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:30:11,935 INFO L93 Difference]: Finished difference Result 320 states and 739 transitions. [2021-11-23 03:30:11,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 03:30:11,935 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-23 03:30:11,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:30:11,937 INFO L225 Difference]: With dead ends: 320 [2021-11-23 03:30:11,938 INFO L226 Difference]: Without dead ends: 201 [2021-11-23 03:30:11,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-23 03:30:11,939 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 40 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:30:11,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 14 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:30:11,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-23 03:30:11,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 122. [2021-11-23 03:30:11,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 2.1983471074380163) internal successors, (266), 121 states have internal predecessors, (266), 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) [2021-11-23 03:30:11,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 266 transitions. [2021-11-23 03:30:11,947 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 266 transitions. Word has length 22 [2021-11-23 03:30:11,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:30:11,947 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 266 transitions. [2021-11-23 03:30:11,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 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) [2021-11-23 03:30:11,947 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 266 transitions. [2021-11-23 03:30:11,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 03:30:11,948 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:30:11,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:30:11,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 03:30:11,949 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-23 03:30:11,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:30:11,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1962416946, now seen corresponding path program 2 times [2021-11-23 03:30:11,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:30:11,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170644253] [2021-11-23 03:30:11,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:30:11,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:30:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:30:12,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:30:12,052 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:30:12,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170644253] [2021-11-23 03:30:12,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170644253] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:30:12,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:30:12,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:30:12,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449341277] [2021-11-23 03:30:12,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:30:12,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:30:12,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:30:12,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:30:12,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:30:12,055 INFO L87 Difference]: Start difference. First operand 122 states and 266 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-11-23 03:30:12,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:30:12,182 INFO L93 Difference]: Finished difference Result 164 states and 349 transitions. [2021-11-23 03:30:12,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:30:12,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-23 03:30:12,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:30:12,183 INFO L225 Difference]: With dead ends: 164 [2021-11-23 03:30:12,183 INFO L226 Difference]: Without dead ends: 71 [2021-11-23 03:30:12,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:30:12,185 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 21 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:30:12,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 14 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:30:12,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-23 03:30:12,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-23 03:30:12,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.9142857142857144) internal successors, (134), 70 states have internal predecessors, (134), 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) [2021-11-23 03:30:12,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 134 transitions. [2021-11-23 03:30:12,189 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 134 transitions. Word has length 22 [2021-11-23 03:30:12,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:30:12,189 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 134 transitions. [2021-11-23 03:30:12,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-11-23 03:30:12,189 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 134 transitions. [2021-11-23 03:30:12,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 03:30:12,190 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:30:12,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:30:12,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 03:30:12,191 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-23 03:30:12,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:30:12,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1764232712, now seen corresponding path program 3 times [2021-11-23 03:30:12,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:30:12,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578911957] [2021-11-23 03:30:12,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:30:12,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:30:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:30:12,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:30:12,380 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:30:12,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578911957] [2021-11-23 03:30:12,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578911957] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:30:12,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:30:12,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:30:12,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532660873] [2021-11-23 03:30:12,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:30:12,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:30:12,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:30:12,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:30:12,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:30:12,383 INFO L87 Difference]: Start difference. First operand 71 states and 134 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-11-23 03:30:12,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:30:12,476 INFO L93 Difference]: Finished difference Result 98 states and 183 transitions. [2021-11-23 03:30:12,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:30:12,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-23 03:30:12,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:30:12,477 INFO L225 Difference]: With dead ends: 98 [2021-11-23 03:30:12,478 INFO L226 Difference]: Without dead ends: 49 [2021-11-23 03:30:12,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:30:12,479 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:30:12,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 6 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:30:12,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-23 03:30:12,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-11-23 03:30:12,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.7083333333333333) internal successors, (82), 48 states have internal predecessors, (82), 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) [2021-11-23 03:30:12,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 82 transitions. [2021-11-23 03:30:12,482 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 82 transitions. Word has length 22 [2021-11-23 03:30:12,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:30:12,483 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 82 transitions. [2021-11-23 03:30:12,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-11-23 03:30:12,483 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 82 transitions. [2021-11-23 03:30:12,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 03:30:12,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:30:12,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:30:12,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 03:30:12,484 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-23 03:30:12,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:30:12,485 INFO L85 PathProgramCache]: Analyzing trace with hash 631613560, now seen corresponding path program 4 times [2021-11-23 03:30:12,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:30:12,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261115586] [2021-11-23 03:30:12,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:30:12,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:30:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:30:12,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:30:12,689 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:30:12,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261115586] [2021-11-23 03:30:12,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261115586] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:30:12,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:30:12,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:30:12,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343675877] [2021-11-23 03:30:12,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:30:12,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 03:30:12,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:30:12,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 03:30:12,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:30:12,691 INFO L87 Difference]: Start difference. First operand 49 states and 82 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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) [2021-11-23 03:30:12,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:30:12,823 INFO L93 Difference]: Finished difference Result 60 states and 97 transitions. [2021-11-23 03:30:12,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 03:30:12,824 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-23 03:30:12,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:30:12,825 INFO L225 Difference]: With dead ends: 60 [2021-11-23 03:30:12,825 INFO L226 Difference]: Without dead ends: 33 [2021-11-23 03:30:12,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-23 03:30:12,826 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 35 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:30:12,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 16 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:30:12,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-23 03:30:12,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-23 03:30:12,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 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) [2021-11-23 03:30:12,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2021-11-23 03:30:12,829 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 22 [2021-11-23 03:30:12,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:30:12,829 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2021-11-23 03:30:12,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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) [2021-11-23 03:30:12,829 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2021-11-23 03:30:12,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 03:30:12,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:30:12,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:30:12,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 03:30:12,830 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-23 03:30:12,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:30:12,830 INFO L85 PathProgramCache]: Analyzing trace with hash -239731894, now seen corresponding path program 5 times [2021-11-23 03:30:12,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:30:12,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7649761] [2021-11-23 03:30:12,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:30:12,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:30:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:30:12,888 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 03:30:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:30:12,970 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 03:30:12,972 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 03:30:12,973 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2021-11-23 03:30:12,976 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-11-23 03:30:12,977 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining) [2021-11-23 03:30:12,977 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 6 remaining) [2021-11-23 03:30:12,977 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 6 remaining) [2021-11-23 03:30:12,978 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-11-23 03:30:12,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 03:30:12,981 INFO L732 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1] [2021-11-23 03:30:12,987 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-23 03:30:12,987 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:30:13,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:30:13 BasicIcfg [2021-11-23 03:30:13,160 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:30:13,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:30:13,162 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:30:13,162 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:30:13,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:30:02" (3/4) ... [2021-11-23 03:30:13,166 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 03:30:13,340 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 03:30:13,340 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:30:13,341 INFO L158 Benchmark]: Toolchain (without parser) took 13434.14ms. Allocated memory was 96.5MB in the beginning and 155.2MB in the end (delta: 58.7MB). Free memory was 56.6MB in the beginning and 113.4MB in the end (delta: -56.7MB). Peak memory consumption was 83.1MB. Max. memory is 16.1GB. [2021-11-23 03:30:13,342 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 96.5MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:30:13,342 INFO L158 Benchmark]: CACSL2BoogieTranslator took 775.72ms. Allocated memory is still 96.5MB. Free memory was 56.4MB in the beginning and 60.3MB in the end (delta: -3.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 03:30:13,342 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.80ms. Allocated memory is still 96.5MB. Free memory was 60.3MB in the beginning and 57.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:30:13,343 INFO L158 Benchmark]: Boogie Preprocessor took 59.78ms. Allocated memory is still 96.5MB. Free memory was 57.6MB in the beginning and 55.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:30:13,343 INFO L158 Benchmark]: RCFGBuilder took 1319.90ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 55.7MB in the beginning and 53.5MB in the end (delta: 2.2MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2021-11-23 03:30:13,345 INFO L158 Benchmark]: TraceAbstraction took 11005.49ms. Allocated memory was 117.4MB in the beginning and 155.2MB in the end (delta: 37.7MB). Free memory was 52.9MB in the beginning and 44.8MB in the end (delta: 8.1MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2021-11-23 03:30:13,346 INFO L158 Benchmark]: Witness Printer took 178.90ms. Allocated memory is still 155.2MB. Free memory was 44.8MB in the beginning and 113.4MB in the end (delta: -68.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 03:30:13,348 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 96.5MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 775.72ms. Allocated memory is still 96.5MB. Free memory was 56.4MB in the beginning and 60.3MB in the end (delta: -3.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.80ms. Allocated memory is still 96.5MB. Free memory was 60.3MB in the beginning and 57.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.78ms. Allocated memory is still 96.5MB. Free memory was 57.6MB in the beginning and 55.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1319.90ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 55.7MB in the beginning and 53.5MB in the end (delta: 2.2MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * TraceAbstraction took 11005.49ms. Allocated memory was 117.4MB in the beginning and 155.2MB in the end (delta: 37.7MB). Free memory was 52.9MB in the beginning and 44.8MB in the end (delta: 8.1MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. * Witness Printer took 178.90ms. Allocated memory is still 155.2MB. Free memory was 44.8MB in the beginning and 113.4MB in the end (delta: -68.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.2s, 129 PlacesBefore, 37 PlacesAfterwards, 121 TransitionsBefore, 28 TransitionsAfterwards, 2240 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 105 TotalNumberOfCompositions, 5441 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3460, positive: 3289, positive conditional: 0, positive unconditional: 3289, negative: 171, negative conditional: 0, negative unconditional: 171, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1667, positive: 1617, positive conditional: 0, positive unconditional: 1617, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1667, positive: 1587, positive conditional: 0, positive unconditional: 1587, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 80, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 476, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 400, negative conditional: 0, negative unconditional: 400, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3460, positive: 1672, positive conditional: 0, positive unconditional: 1672, negative: 121, negative conditional: 0, negative unconditional: 121, unknown: 1667, unknown conditional: 0, unknown unconditional: 1667] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 181, Positive conditional cache size: 0, Positive unconditional cache size: 181, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p1_EAX = 0; [L713] 0 int __unbuffered_p1_EBX = 0; [L715] 0 int __unbuffered_p2_EAX = 0; [L717] 0 int __unbuffered_p2_EBX = 0; [L719] 0 int a = 0; [L721] 0 int b = 0; [L722] 0 _Bool main$tmp_guard0; [L723] 0 _Bool main$tmp_guard1; [L725] 0 int x = 0; [L727] 0 int y = 0; [L729] 0 int z = 0; [L730] 0 _Bool z$flush_delayed; [L731] 0 int z$mem_tmp; [L732] 0 _Bool z$r_buff0_thd0; [L733] 0 _Bool z$r_buff0_thd1; [L734] 0 _Bool z$r_buff0_thd2; [L735] 0 _Bool z$r_buff0_thd3; [L736] 0 _Bool z$r_buff1_thd0; [L737] 0 _Bool z$r_buff1_thd1; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; [L740] 0 _Bool z$read_delayed; [L741] 0 int *z$read_delayed_var; [L742] 0 int z$w_buff0; [L743] 0 _Bool z$w_buff0_used; [L744] 0 int z$w_buff1; [L745] 0 _Bool z$w_buff1_used; [L746] 0 _Bool weak$$choice0; [L747] 0 _Bool weak$$choice2; [L843] 0 pthread_t t876; [L844] FCALL, FORK 0 pthread_create(&t876, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t876, ((void *)0), P0, ((void *)0))=-2, t876={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L845] 0 pthread_t t877; [L846] FCALL, FORK 0 pthread_create(&t877, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t877, ((void *)0), P1, ((void *)0))=-1, t876={5:0}, t877={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L847] 0 pthread_t t878; [L848] FCALL, FORK 0 pthread_create(&t878, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t878, ((void *)0), P2, ((void *)0))=0, t876={5:0}, t877={6:0}, t878={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L800] 3 z$w_buff1 = z$w_buff0 [L801] 3 z$w_buff0 = 1 [L802] 3 z$w_buff1_used = z$w_buff0_used [L803] 3 z$w_buff0_used = (_Bool)1 [L804] CALL 3 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L804] RET 3 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L805] 3 z$r_buff1_thd0 = z$r_buff0_thd0 [L806] 3 z$r_buff1_thd1 = z$r_buff0_thd1 [L807] 3 z$r_buff1_thd2 = z$r_buff0_thd2 [L808] 3 z$r_buff1_thd3 = z$r_buff0_thd3 [L809] 3 z$r_buff0_thd3 = (_Bool)1 [L812] 3 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L815] 3 __unbuffered_p2_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L818] 3 __unbuffered_p2_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L751] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L754] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L759] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L761] 1 return 0; [L766] 2 x = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L769] 2 y = 1 [L772] 2 __unbuffered_p1_EAX = y VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L775] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L776] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L777] 2 z$flush_delayed = weak$$choice2 [L778] 2 z$mem_tmp = z [L779] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L779] 2 z = !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L780] EXPR 2 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L780] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0) [L780] EXPR 2 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L780] 2 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L781] EXPR 2 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L781] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1) [L781] EXPR 2 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L781] 2 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L782] EXPR 2 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L782] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used) [L782] EXPR 2 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L782] 2 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L783] EXPR 2 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L783] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L783] EXPR 2 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L783] 2 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L784] EXPR 2 weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L784] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2) [L784] EXPR 2 weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L784] 2 z$r_buff0_thd2 = weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L785] EXPR 2 weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L785] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L785] EXPR 2 weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L785] 2 z$r_buff1_thd2 = weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L786] 2 __unbuffered_p1_EBX = z [L787] EXPR 2 z$flush_delayed ? z$mem_tmp : z [L787] 2 z = z$flush_delayed ? z$mem_tmp : z [L788] 2 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L793] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L795] 2 return 0; [L821] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L821] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L822] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L822] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L823] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L823] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L824] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L824] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L825] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L825] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L828] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L830] 3 return 0; [L850] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L852] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L852] RET 0 assume_abort_if_not(main$tmp_guard0) [L854] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L854] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L854] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L854] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L855] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L855] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L856] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L856] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L857] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L857] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L858] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L858] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L861] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L863] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 846]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 848]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 844]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 150 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 10.6s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 304 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 304 mSDsluCounter, 141 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 570 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 921 IncrementalHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 50 mSDtfsCounter, 921 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=790occurred in iteration=0, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 79 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 730 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-23 03:30:13,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf18378-4beb-4688-ad6c-a6716a175096/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE