./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9f11e3d34186a330c71b949abab7e303d2426b1c1d29ea9f87b56e7405409752 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:53:14,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:53:14,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:53:14,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:53:14,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:53:14,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:53:14,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:53:14,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:53:14,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:53:14,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:53:14,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:53:14,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:53:14,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:53:14,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:53:14,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:53:14,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:53:14,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:53:14,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:53:14,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:53:14,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:53:14,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:53:14,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:53:14,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:53:14,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:53:14,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:53:14,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:53:14,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:53:14,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:53:14,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:53:14,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:53:14,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:53:14,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:53:14,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:53:14,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:53:14,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:53:14,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:53:14,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:53:14,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:53:14,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:53:14,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:53:14,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:53:14,546 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:53:14,602 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:53:14,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:53:14,603 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:53:14,604 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:53:14,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:53:14,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:53:14,613 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:53:14,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:53:14,614 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:53:14,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:53:14,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:53:14,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:53:14,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:53:14,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:53:14,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:53:14,617 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:53:14,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:53:14,618 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:53:14,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:53:14,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:53:14,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:53:14,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:53:14,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:53:14,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:53:14,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:53:14,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:53:14,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:53:14,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:53:14,621 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:53:14,623 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:53:14,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:53:14,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:53:14,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f11e3d34186a330c71b949abab7e303d2426b1c1d29ea9f87b56e7405409752 [2021-10-21 19:53:14,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:53:14,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:53:14,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:53:14,970 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:53:14,971 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:53:14,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2021-10-21 19:53:15,040 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/data/1093ff6bb/6c0a88135c314a15ac506a01c88497ae/FLAG9e2f34d3f [2021-10-21 19:53:15,547 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:53:15,548 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2021-10-21 19:53:15,560 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/data/1093ff6bb/6c0a88135c314a15ac506a01c88497ae/FLAG9e2f34d3f [2021-10-21 19:53:15,874 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/data/1093ff6bb/6c0a88135c314a15ac506a01c88497ae [2021-10-21 19:53:15,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:53:15,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:53:15,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:53:15,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:53:15,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:53:15,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:53:15" (1/1) ... [2021-10-21 19:53:15,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d54841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:15, skipping insertion in model container [2021-10-21 19:53:15,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:53:15" (1/1) ... [2021-10-21 19:53:15,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:53:15,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:53:16,138 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c[2430,2443] [2021-10-21 19:53:16,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:53:16,157 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:53:16,180 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c[2430,2443] [2021-10-21 19:53:16,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:53:16,201 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:53:16,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16 WrapperNode [2021-10-21 19:53:16,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:53:16,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:53:16,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:53:16,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:53:16,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:53:16,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:53:16,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:53:16,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:53:16,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:53:16,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:53:16,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:53:16,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:53:16,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (1/1) ... [2021-10-21 19:53:16,317 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:53:16,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:16,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:53:16,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:53:16,392 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-21 19:53:16,392 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-21 19:53:16,392 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-21 19:53:16,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-21 19:53:16,393 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-21 19:53:16,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-21 19:53:16,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:53:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:53:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:53:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-21 19:53:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-21 19:53:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:53:16,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:53:16,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:53:16,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:53:16,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:53:16,397 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-21 19:53:16,900 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:53:16,913 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-10-21 19:53:16,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:53:16 BoogieIcfgContainer [2021-10-21 19:53:16,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:53:16,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:53:16,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:53:16,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:53:16,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:53:15" (1/3) ... [2021-10-21 19:53:16,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ae2bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:53:16, skipping insertion in model container [2021-10-21 19:53:16,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:53:16" (2/3) ... [2021-10-21 19:53:16,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ae2bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:53:16, skipping insertion in model container [2021-10-21 19:53:16,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:53:16" (3/3) ... [2021-10-21 19:53:16,926 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-min-le-max.wvr.c [2021-10-21 19:53:16,936 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-21 19:53:16,937 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:53:16,937 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:53:16,938 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-21 19:53:16,996 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:16,997 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:16,997 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:16,997 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:16,998 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:16,998 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:16,998 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:16,998 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:16,999 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:16,999 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:16,999 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:16,999 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,000 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,000 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,000 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,000 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,001 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,001 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,002 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,002 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,003 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,003 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,003 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,004 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,005 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,005 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,006 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,006 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,007 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,007 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,007 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,008 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,009 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,009 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,010 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,010 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,010 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,010 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,011 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,011 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,011 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,011 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,012 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,012 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,013 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,013 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,014 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,014 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,014 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,014 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,015 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,015 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,016 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,016 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,016 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,016 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,017 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,017 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,018 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,038 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,047 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,048 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,048 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,049 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,050 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,050 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,055 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,055 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,059 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,059 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,060 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,060 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,062 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,062 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:53:17,098 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-21 19:53:17,186 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:53:17,201 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:53:17,201 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-21 19:53:17,228 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 135 places, 135 transitions, 294 flow [2021-10-21 19:53:17,346 INFO L129 PetriNetUnfolder]: 10/132 cut-off events. [2021-10-21 19:53:17,346 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-21 19:53:17,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 10/132 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 75 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2021-10-21 19:53:17,353 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 135 transitions, 294 flow [2021-10-21 19:53:17,365 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 122 transitions, 262 flow [2021-10-21 19:53:17,437 INFO L129 PetriNetUnfolder]: 10/121 cut-off events. [2021-10-21 19:53:17,440 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-21 19:53:17,440 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:53:17,441 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:53:17,441 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-21 19:53:17,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:53:17,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1484423990, now seen corresponding path program 1 times [2021-10-21 19:53:17,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:53:17,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372978293] [2021-10-21 19:53:17,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:53:17,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:53:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:53:17,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:53:17,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:53:17,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372978293] [2021-10-21 19:53:17,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372978293] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:53:17,767 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:53:17,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:53:17,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469087851] [2021-10-21 19:53:17,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:53:17,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:53:17,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:53:17,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:53:17,796 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 135 [2021-10-21 19:53:17,800 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 122 transitions, 262 flow. Second operand has 2 states, 2 states have (on average 128.5) internal successors, (257), 2 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:17,800 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:53:17,800 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 135 [2021-10-21 19:53:17,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:53:17,847 INFO L129 PetriNetUnfolder]: 3/115 cut-off events. [2021-10-21 19:53:17,848 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-21 19:53:17,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 115 events. 3/115 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 69 event pairs, 0 based on Foata normal form. 7/115 useless extension candidates. Maximal degree in co-relation 124. Up to 2 conditions per place. [2021-10-21 19:53:17,850 INFO L132 encePairwiseOnDemand]: 128/135 looper letters, 0 selfloop transitions, 0 changer transitions 4/115 dead transitions. [2021-10-21 19:53:17,851 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 115 transitions, 248 flow [2021-10-21 19:53:17,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:53:17,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-21 19:53:17,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 261 transitions. [2021-10-21 19:53:17,865 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9666666666666667 [2021-10-21 19:53:17,866 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 261 transitions. [2021-10-21 19:53:17,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 261 transitions. [2021-10-21 19:53:17,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:53:17,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 261 transitions. [2021-10-21 19:53:17,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 130.5) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:17,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:17,882 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:17,884 INFO L186 Difference]: Start difference. First operand has 122 places, 122 transitions, 262 flow. Second operand 2 states and 261 transitions. [2021-10-21 19:53:17,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 115 transitions, 248 flow [2021-10-21 19:53:17,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 115 transitions, 236 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-10-21 19:53:17,894 INFO L242 Difference]: Finished difference. Result has 117 places, 111 transitions, 228 flow [2021-10-21 19:53:17,896 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=228, PETRI_PLACES=117, PETRI_TRANSITIONS=111} [2021-10-21 19:53:17,897 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, -5 predicate places. [2021-10-21 19:53:17,898 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 111 transitions, 228 flow [2021-10-21 19:53:17,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 128.5) internal successors, (257), 2 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:17,898 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:53:17,899 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:53:17,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:53:17,899 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-21 19:53:17,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:53:17,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1630339409, now seen corresponding path program 1 times [2021-10-21 19:53:17,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:53:17,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821634090] [2021-10-21 19:53:17,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:53:17,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:53:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:53:18,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:53:18,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:53:18,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821634090] [2021-10-21 19:53:18,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821634090] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:53:18,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:53:18,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-21 19:53:18,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051758937] [2021-10-21 19:53:18,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:53:18,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:53:18,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:53:18,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:53:18,301 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 135 [2021-10-21 19:53:18,303 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 111 transitions, 228 flow. Second operand has 8 states, 8 states have (on average 94.25) internal successors, (754), 8 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:18,303 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:53:18,303 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 135 [2021-10-21 19:53:18,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:53:18,496 INFO L129 PetriNetUnfolder]: 11/155 cut-off events. [2021-10-21 19:53:18,496 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-21 19:53:18,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 155 events. 11/155 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 213 event pairs, 4 based on Foata normal form. 1/142 useless extension candidates. Maximal degree in co-relation 210. Up to 40 conditions per place. [2021-10-21 19:53:18,499 INFO L132 encePairwiseOnDemand]: 125/135 looper letters, 30 selfloop transitions, 6 changer transitions 4/119 dead transitions. [2021-10-21 19:53:18,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 119 transitions, 324 flow [2021-10-21 19:53:18,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:53:18,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-21 19:53:18,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 769 transitions. [2021-10-21 19:53:18,508 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.712037037037037 [2021-10-21 19:53:18,508 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 769 transitions. [2021-10-21 19:53:18,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 769 transitions. [2021-10-21 19:53:18,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:53:18,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 769 transitions. [2021-10-21 19:53:18,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 96.125) internal successors, (769), 8 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:18,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 135.0) internal successors, (1215), 9 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:18,525 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 135.0) internal successors, (1215), 9 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:18,525 INFO L186 Difference]: Start difference. First operand has 117 places, 111 transitions, 228 flow. Second operand 8 states and 769 transitions. [2021-10-21 19:53:18,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 119 transitions, 324 flow [2021-10-21 19:53:18,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 119 transitions, 324 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-21 19:53:18,531 INFO L242 Difference]: Finished difference. Result has 124 places, 112 transitions, 256 flow [2021-10-21 19:53:18,531 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=256, PETRI_PLACES=124, PETRI_TRANSITIONS=112} [2021-10-21 19:53:18,532 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 2 predicate places. [2021-10-21 19:53:18,532 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 112 transitions, 256 flow [2021-10-21 19:53:18,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 94.25) internal successors, (754), 8 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:18,533 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:53:18,533 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:53:18,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:53:18,534 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-21 19:53:18,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:53:18,534 INFO L82 PathProgramCache]: Analyzing trace with hash 477477113, now seen corresponding path program 1 times [2021-10-21 19:53:18,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:53:18,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585100127] [2021-10-21 19:53:18,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:53:18,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:53:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:53:18,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:53:18,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:53:18,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585100127] [2021-10-21 19:53:18,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585100127] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:53:18,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337500778] [2021-10-21 19:53:18,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:53:18,751 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:53:18,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:18,753 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:53:18,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:53:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:53:18,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:53:18,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:53:19,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:53:19,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337500778] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:53:19,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:53:19,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-10-21 19:53:19,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291353788] [2021-10-21 19:53:19,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:53:19,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:53:19,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:53:19,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:53:19,462 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 135 [2021-10-21 19:53:19,464 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 112 transitions, 256 flow. Second operand has 10 states, 10 states have (on average 105.5) internal successors, (1055), 10 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:19,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:53:19,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 135 [2021-10-21 19:53:19,474 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:53:19,693 INFO L129 PetriNetUnfolder]: 45/195 cut-off events. [2021-10-21 19:53:19,693 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-10-21 19:53:19,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 195 events. 45/195 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 361 event pairs, 12 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 307. Up to 54 conditions per place. [2021-10-21 19:53:19,697 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 27 selfloop transitions, 7 changer transitions 0/121 dead transitions. [2021-10-21 19:53:19,697 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 121 transitions, 342 flow [2021-10-21 19:53:19,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:53:19,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-21 19:53:19,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 859 transitions. [2021-10-21 19:53:19,701 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7953703703703704 [2021-10-21 19:53:19,702 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 859 transitions. [2021-10-21 19:53:19,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 859 transitions. [2021-10-21 19:53:19,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:53:19,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 859 transitions. [2021-10-21 19:53:19,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 107.375) internal successors, (859), 8 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:19,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 135.0) internal successors, (1215), 9 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:19,712 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 135.0) internal successors, (1215), 9 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:19,712 INFO L186 Difference]: Start difference. First operand has 124 places, 112 transitions, 256 flow. Second operand 8 states and 859 transitions. [2021-10-21 19:53:19,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 121 transitions, 342 flow [2021-10-21 19:53:19,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 121 transitions, 324 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-10-21 19:53:19,718 INFO L242 Difference]: Finished difference. Result has 124 places, 114 transitions, 266 flow [2021-10-21 19:53:19,719 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=266, PETRI_PLACES=124, PETRI_TRANSITIONS=114} [2021-10-21 19:53:19,719 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 2 predicate places. [2021-10-21 19:53:19,719 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 114 transitions, 266 flow [2021-10-21 19:53:19,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 105.5) internal successors, (1055), 10 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:19,721 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:53:19,721 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:53:19,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-21 19:53:19,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:53:19,946 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-21 19:53:19,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:53:19,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1916431229, now seen corresponding path program 1 times [2021-10-21 19:53:19,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:53:19,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504146932] [2021-10-21 19:53:19,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:53:19,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:53:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:53:20,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:53:20,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:53:20,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504146932] [2021-10-21 19:53:20,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504146932] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:53:20,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639125684] [2021-10-21 19:53:20,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:53:20,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:53:20,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:20,093 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:53:20,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 19:53:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:53:20,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:53:20,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:53:20,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:53:20,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639125684] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:53:20,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:53:20,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-10-21 19:53:20,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778670063] [2021-10-21 19:53:20,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:53:20,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:53:20,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:53:20,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:53:20,657 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 135 [2021-10-21 19:53:20,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 114 transitions, 266 flow. Second operand has 10 states, 10 states have (on average 105.6) internal successors, (1056), 10 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:20,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:53:20,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 135 [2021-10-21 19:53:20,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:53:20,824 INFO L129 PetriNetUnfolder]: 34/213 cut-off events. [2021-10-21 19:53:20,824 INFO L130 PetriNetUnfolder]: For 21/25 co-relation queries the response was YES. [2021-10-21 19:53:20,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 213 events. 34/213 cut-off events. For 21/25 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 649 event pairs, 13 based on Foata normal form. 4/203 useless extension candidates. Maximal degree in co-relation 334. Up to 50 conditions per place. [2021-10-21 19:53:20,830 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 27 selfloop transitions, 7 changer transitions 0/122 dead transitions. [2021-10-21 19:53:20,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 122 transitions, 352 flow [2021-10-21 19:53:20,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:53:20,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-21 19:53:20,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 859 transitions. [2021-10-21 19:53:20,834 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7953703703703704 [2021-10-21 19:53:20,834 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 859 transitions. [2021-10-21 19:53:20,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 859 transitions. [2021-10-21 19:53:20,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:53:20,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 859 transitions. [2021-10-21 19:53:20,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 107.375) internal successors, (859), 8 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:20,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 135.0) internal successors, (1215), 9 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:20,843 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 135.0) internal successors, (1215), 9 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:20,843 INFO L186 Difference]: Start difference. First operand has 124 places, 114 transitions, 266 flow. Second operand 8 states and 859 transitions. [2021-10-21 19:53:20,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 122 transitions, 352 flow [2021-10-21 19:53:20,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 122 transitions, 342 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-10-21 19:53:20,849 INFO L242 Difference]: Finished difference. Result has 127 places, 115 transitions, 278 flow [2021-10-21 19:53:20,850 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=278, PETRI_PLACES=127, PETRI_TRANSITIONS=115} [2021-10-21 19:53:20,850 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 5 predicate places. [2021-10-21 19:53:20,850 INFO L470 AbstractCegarLoop]: Abstraction has has 127 places, 115 transitions, 278 flow [2021-10-21 19:53:20,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 105.6) internal successors, (1056), 10 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:20,853 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:53:20,854 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:53:20,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:53:21,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:53:21,069 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-21 19:53:21,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:53:21,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1973160693, now seen corresponding path program 1 times [2021-10-21 19:53:21,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:53:21,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129972881] [2021-10-21 19:53:21,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:53:21,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:53:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:53:21,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:53:21,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:53:21,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129972881] [2021-10-21 19:53:21,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129972881] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:53:21,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581752867] [2021-10-21 19:53:21,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:53:21,289 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:53:21,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:53:21,290 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:53:21,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 19:53:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:53:21,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 47 conjunts are in the unsatisfiable core [2021-10-21 19:53:21,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:53:21,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-21 19:53:22,640 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-21 19:53:22,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 26 [2021-10-21 19:53:22,858 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-21 19:53:22,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 26 [2021-10-21 19:53:23,053 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-21 19:53:23,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 26 [2021-10-21 19:53:23,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-21 19:53:23,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:53:23,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581752867] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:53:23,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:53:23,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 25] total 30 [2021-10-21 19:53:23,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222671688] [2021-10-21 19:53:23,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-21 19:53:23,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:53:23,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-21 19:53:23,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=773, Unknown=0, NotChecked=0, Total=870 [2021-10-21 19:53:23,620 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 135 [2021-10-21 19:53:23,622 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 115 transitions, 278 flow. Second operand has 30 states, 30 states have (on average 50.166666666666664) internal successors, (1505), 30 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:23,622 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:53:23,623 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 135 [2021-10-21 19:53:23,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:53:27,532 INFO L129 PetriNetUnfolder]: 1640/3309 cut-off events. [2021-10-21 19:53:27,533 INFO L130 PetriNetUnfolder]: For 634/634 co-relation queries the response was YES. [2021-10-21 19:53:27,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6588 conditions, 3309 events. 1640/3309 cut-off events. For 634/634 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 23754 event pairs, 102 based on Foata normal form. 3/3239 useless extension candidates. Maximal degree in co-relation 6580. Up to 482 conditions per place. [2021-10-21 19:53:27,548 INFO L132 encePairwiseOnDemand]: 107/135 looper letters, 0 selfloop transitions, 0 changer transitions 272/272 dead transitions. [2021-10-21 19:53:27,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 272 transitions, 1154 flow [2021-10-21 19:53:27,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-21 19:53:27,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-10-21 19:53:27,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 1982 transitions. [2021-10-21 19:53:27,558 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.38635477582846006 [2021-10-21 19:53:27,558 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 1982 transitions. [2021-10-21 19:53:27,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 1982 transitions. [2021-10-21 19:53:27,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:53:27,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 1982 transitions. [2021-10-21 19:53:27,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 52.1578947368421) internal successors, (1982), 38 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:27,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 135.0) internal successors, (5265), 39 states have internal predecessors, (5265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:27,583 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 135.0) internal successors, (5265), 39 states have internal predecessors, (5265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:27,583 INFO L186 Difference]: Start difference. First operand has 127 places, 115 transitions, 278 flow. Second operand 38 states and 1982 transitions. [2021-10-21 19:53:27,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 272 transitions, 1154 flow [2021-10-21 19:53:27,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 272 transitions, 1132 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-10-21 19:53:27,591 INFO L242 Difference]: Finished difference. Result has 156 places, 0 transitions, 0 flow [2021-10-21 19:53:27,592 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=0, PETRI_PLACES=156, PETRI_TRANSITIONS=0} [2021-10-21 19:53:27,592 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 34 predicate places. [2021-10-21 19:53:27,592 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 0 transitions, 0 flow [2021-10-21 19:53:27,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 50.166666666666664) internal successors, (1505), 30 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:53:27,596 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:53:27,597 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-21 19:53:27,597 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-21 19:53:27,597 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-21 19:53:27,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:53:27,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:53:27,826 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-21 19:53:27,826 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:53:27,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:53:27 BasicIcfg [2021-10-21 19:53:27,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:53:27,830 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:53:27,830 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:53:27,830 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:53:27,830 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:53:16" (3/4) ... [2021-10-21 19:53:27,833 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:53:27,837 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-21 19:53:27,837 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-21 19:53:27,837 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-21 19:53:27,842 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-21 19:53:27,843 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 19:53:27,843 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:53:27,843 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:53:27,892 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:53:27,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:53:27,894 INFO L168 Benchmark]: Toolchain (without parser) took 12016.36 ms. Allocated memory was 92.3 MB in the beginning and 172.0 MB in the end (delta: 79.7 MB). Free memory was 62.9 MB in the beginning and 111.7 MB in the end (delta: -48.8 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:53:27,894 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:53:27,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.39 ms. Allocated memory is still 92.3 MB. Free memory was 62.7 MB in the beginning and 68.8 MB in the end (delta: -6.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:53:27,895 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.86 ms. Allocated memory is still 92.3 MB. Free memory was 68.8 MB in the beginning and 66.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:53:27,896 INFO L168 Benchmark]: Boogie Preprocessor took 49.33 ms. Allocated memory is still 92.3 MB. Free memory was 66.8 MB in the beginning and 65.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:53:27,896 INFO L168 Benchmark]: RCFGBuilder took 610.60 ms. Allocated memory is still 92.3 MB. Free memory was 65.4 MB in the beginning and 48.3 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:53:27,897 INFO L168 Benchmark]: TraceAbstraction took 10910.95 ms. Allocated memory was 92.3 MB in the beginning and 172.0 MB in the end (delta: 79.7 MB). Free memory was 47.6 MB in the beginning and 115.7 MB in the end (delta: -68.1 MB). Peak memory consumption was 77.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:53:27,897 INFO L168 Benchmark]: Witness Printer took 63.35 ms. Allocated memory is still 172.0 MB. Free memory was 115.7 MB in the beginning and 111.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:53:27,900 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 323.39 ms. Allocated memory is still 92.3 MB. Free memory was 62.7 MB in the beginning and 68.8 MB in the end (delta: -6.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.86 ms. Allocated memory is still 92.3 MB. Free memory was 68.8 MB in the beginning and 66.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.33 ms. Allocated memory is still 92.3 MB. Free memory was 66.8 MB in the beginning and 65.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 610.60 ms. Allocated memory is still 92.3 MB. Free memory was 65.4 MB in the beginning and 48.3 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10910.95 ms. Allocated memory was 92.3 MB in the beginning and 172.0 MB in the end (delta: 79.7 MB). Free memory was 47.6 MB in the beginning and 115.7 MB in the end (delta: -68.1 MB). Peak memory consumption was 77.1 MB. Max. memory is 16.1 GB. * Witness Printer took 63.35 ms. Allocated memory is still 172.0 MB. Free memory was 115.7 MB in the beginning and 111.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 96]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 151 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 74.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10643.7ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 4777.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 164.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 96 SDtfs, 740 SDslu, 850 SDs, 0 SdLazy, 1254 SolverSat, 103 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 914.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 399 GetRequests, 301 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 3319.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=4, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 93.5ms SsaConstructionTime, 435.0ms SatisfiabilityAnalysisTime, 3943.9ms InterpolantComputationTime, 824 NumberOfCodeBlocks, 824 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 816 ConstructedInterpolants, 0 QuantifiedInterpolants, 3000 SizeOfPredicates, 42 NumberOfNonLiveVariables, 741 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 3/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-21 19:53:27,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e428b7-9fff-4299-9c06-90bcbb163ef4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...