./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec13_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec13_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7c9485412041f5ced738777edbcc586e5ce326d6f265b136a50fe41e5db19fb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:48:27,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:48:27,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:48:28,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:48:28,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:48:28,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:48:28,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:48:28,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:48:28,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:48:28,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:48:28,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:48:28,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:48:28,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:48:28,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:48:28,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:48:28,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:48:28,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:48:28,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:48:28,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:48:28,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:48:28,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:48:28,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:48:28,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:48:28,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:48:28,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:48:28,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:48:28,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:48:28,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:48:28,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:48:28,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:48:28,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:48:28,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:48:28,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:48:28,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:48:28,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:48:28,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:48:28,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:48:28,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:48:28,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:48:28,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:48:28,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:48:28,085 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-13 17:48:28,117 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:48:28,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:48:28,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:48:28,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:48:28,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:48:28,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:48:28,121 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:48:28,122 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 17:48:28,122 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 17:48:28,122 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 17:48:28,123 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 17:48:28,123 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 17:48:28,123 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 17:48:28,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:48:28,124 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:48:28,124 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 17:48:28,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:48:28,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:48:28,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:48:28,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 17:48:28,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 17:48:28,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 17:48:28,126 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:48:28,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:48:28,127 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 17:48:28,127 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:48:28,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 17:48:28,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:48:28,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:48:28,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:48:28,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:48:28,129 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:48:28,130 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 17:48:28,130 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7c9485412041f5ced738777edbcc586e5ce326d6f265b136a50fe41e5db19fb [2021-11-13 17:48:28,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:48:28,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:48:28,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:48:28,470 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:48:28,471 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:48:28,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/product-lines/elevator_spec13_product32.cil.c [2021-11-13 17:48:28,561 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/data/b6422ea5d/d3f8b025194f4e14a71c5e4069ce4fa9/FLAG7a1fa5892 [2021-11-13 17:48:29,313 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:48:29,314 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/sv-benchmarks/c/product-lines/elevator_spec13_product32.cil.c [2021-11-13 17:48:29,346 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/data/b6422ea5d/d3f8b025194f4e14a71c5e4069ce4fa9/FLAG7a1fa5892 [2021-11-13 17:48:29,469 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/data/b6422ea5d/d3f8b025194f4e14a71c5e4069ce4fa9 [2021-11-13 17:48:29,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:48:29,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:48:29,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:48:29,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:48:29,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:48:29,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:48:29" (1/1) ... [2021-11-13 17:48:29,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e01edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:48:29, skipping insertion in model container [2021-11-13 17:48:29,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:48:29" (1/1) ... [2021-11-13 17:48:29,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:48:29,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:48:29,884 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_8869094d-7e27-4cae-a709-0f911681ad94/sv-benchmarks/c/product-lines/elevator_spec13_product32.cil.c[1546,1559] [2021-11-13 17:48:30,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:48:30,317 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:48:30,333 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_8869094d-7e27-4cae-a709-0f911681ad94/sv-benchmarks/c/product-lines/elevator_spec13_product32.cil.c[1546,1559] [2021-11-13 17:48:30,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:48:30,567 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:48:30,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:48:30 WrapperNode [2021-11-13 17:48:30,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:48:30,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:48:30,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:48:30,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:48:30,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:48:30" (1/1) ... [2021-11-13 17:48:30,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:48:30" (1/1) ... [2021-11-13 17:48:31,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:48:31,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:48:31,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:48:31,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:48:31,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:48:30" (1/1) ... [2021-11-13 17:48:31,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:48:30" (1/1) ... [2021-11-13 17:48:32,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:48:30" (1/1) ... [2021-11-13 17:48:32,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:48:30" (1/1) ... [2021-11-13 17:48:32,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:48:30" (1/1) ... [2021-11-13 17:48:33,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:48:30" (1/1) ... [2021-11-13 17:48:33,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:48:30" (1/1) ... [2021-11-13 17:48:33,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:48:33,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:48:33,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:48:33,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:48:33,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:48:30" (1/1) ... [2021-11-13 17:48:33,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:48:33,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:48:34,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:48:34,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 17:48:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:48:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:48:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:48:34,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:49:00,962 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:49:00,963 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2021-11-13 17:49:00,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:49:00 BoogieIcfgContainer [2021-11-13 17:49:00,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:49:00,987 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 17:49:00,987 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 17:49:00,991 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 17:49:00,993 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 17:49:00,993 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 05:48:29" (1/3) ... [2021-11-13 17:49:00,994 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6da2a5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 05:49:00, skipping insertion in model container [2021-11-13 17:49:00,995 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 17:49:00,995 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:48:30" (2/3) ... [2021-11-13 17:49:00,996 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6da2a5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 05:49:00, skipping insertion in model container [2021-11-13 17:49:00,996 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 17:49:00,996 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:49:00" (3/3) ... [2021-11-13 17:49:00,998 INFO L388 chiAutomizerObserver]: Analyzing ICFG elevator_spec13_product32.cil.c [2021-11-13 17:49:01,073 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 17:49:01,073 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 17:49:01,073 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 17:49:01,073 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 17:49:01,074 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 17:49:01,074 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 17:49:01,074 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 17:49:01,074 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 17:49:01,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18482 states, 18481 states have (on average 1.8746279963205454) internal successors, (34645), 18481 states have internal predecessors, (34645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:02,295 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4182 [2021-11-13 17:49:02,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:49:02,296 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:49:02,319 INFO L842 BuchiCegarLoop]: Counterexample stem 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] [2021-11-13 17:49:02,320 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:49:02,320 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 17:49:02,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18482 states, 18481 states have (on average 1.8746279963205454) internal successors, (34645), 18481 states have internal predecessors, (34645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:02,668 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4182 [2021-11-13 17:49:02,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:49:02,669 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:49:02,674 INFO L842 BuchiCegarLoop]: Counterexample stem 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] [2021-11-13 17:49:02,674 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:49:02,692 INFO L791 eck$LassoCheckResult]: Stem: 7529#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(32);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(10);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(4);call write~init~int(91, #t~string133.base, #t~string133.offset, 1);call write~init~int(95, #t~string133.base, 1 + #t~string133.offset, 1);call write~init~int(93, #t~string133.base, 2 + #t~string133.offset, 1);call write~init~int(0, #t~string133.base, 3 + #t~string133.offset, 1);call #t~string135.base, #t~string135.offset := #Ultimate.allocOnStack(4);call write~init~int(91, #t~string135.base, #t~string135.offset, 1);call write~init~int(93, #t~string135.base, 1 + #t~string135.offset, 1);call write~init~int(32, #t~string135.base, 2 + #t~string135.offset, 1);call write~init~int(0, #t~string135.base, 3 + #t~string135.offset, 1);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(5);call write~init~int(32, #t~string137.base, #t~string137.offset, 1);call write~init~int(97, #t~string137.base, 1 + #t~string137.offset, 1);call write~init~int(116, #t~string137.base, 2 + #t~string137.offset, 1);call write~init~int(32, #t~string137.base, 3 + #t~string137.offset, 1);call write~init~int(0, #t~string137.base, 4 + #t~string137.offset, 1);call #t~string139.base, #t~string139.offset := #Ultimate.allocOnStack(3);call write~init~int(37, #t~string139.base, #t~string139.offset, 1);call write~init~int(105, #t~string139.base, 1 + #t~string139.offset, 1);call write~init~int(0, #t~string139.base, 2 + #t~string139.offset, 1);call #t~string141.base, #t~string141.offset := #Ultimate.allocOnStack(10);call #t~string143.base, #t~string143.offset := #Ultimate.allocOnStack(3);call write~init~int(117, #t~string143.base, #t~string143.offset, 1);call write~init~int(112, #t~string143.base, 1 + #t~string143.offset, 1);call write~init~int(0, #t~string143.base, 2 + #t~string143.offset, 1);call #t~string145.base, #t~string145.offset := #Ultimate.allocOnStack(5);call write~init~int(100, #t~string145.base, #t~string145.offset, 1);call write~init~int(111, #t~string145.base, 1 + #t~string145.offset, 1);call write~init~int(119, #t~string145.base, 2 + #t~string145.offset, 1);call write~init~int(110, #t~string145.base, 3 + #t~string145.offset, 1);call write~init~int(0, #t~string145.base, 4 + #t~string145.offset, 1);call #t~string147.base, #t~string147.offset := #Ultimate.allocOnStack(7);call write~init~int(32, #t~string147.base, #t~string147.offset, 1);call write~init~int(73, #t~string147.base, 1 + #t~string147.offset, 1);call write~init~int(76, #t~string147.base, 2 + #t~string147.offset, 1);call write~init~int(95, #t~string147.base, 3 + #t~string147.offset, 1);call write~init~int(112, #t~string147.base, 4 + #t~string147.offset, 1);call write~init~int(58, #t~string147.base, 5 + #t~string147.offset, 1);call write~init~int(0, #t~string147.base, 6 + #t~string147.offset, 1);call #t~string149.base, #t~string149.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string149.base, #t~string149.offset, 1);call write~init~int(37, #t~string149.base, 1 + #t~string149.offset, 1);call write~init~int(105, #t~string149.base, 2 + #t~string149.offset, 1);call write~init~int(0, #t~string149.base, 3 + #t~string149.offset, 1);call #t~string151.base, #t~string151.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string151.base, #t~string151.offset, 1);call write~init~int(37, #t~string151.base, 1 + #t~string151.offset, 1);call write~init~int(105, #t~string151.base, 2 + #t~string151.offset, 1);call write~init~int(0, #t~string151.base, 3 + #t~string151.offset, 1);call #t~string153.base, #t~string153.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string153.base, #t~string153.offset, 1);call write~init~int(37, #t~string153.base, 1 + #t~string153.offset, 1);call write~init~int(105, #t~string153.base, 2 + #t~string153.offset, 1);call write~init~int(0, #t~string153.base, 3 + #t~string153.offset, 1);call #t~string155.base, #t~string155.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string155.base, #t~string155.offset, 1);call write~init~int(37, #t~string155.base, 1 + #t~string155.offset, 1);call write~init~int(105, #t~string155.base, 2 + #t~string155.offset, 1);call write~init~int(0, #t~string155.base, 3 + #t~string155.offset, 1);call #t~string157.base, #t~string157.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string157.base, #t~string157.offset, 1);call write~init~int(37, #t~string157.base, 1 + #t~string157.offset, 1);call write~init~int(105, #t~string157.base, 2 + #t~string157.offset, 1);call write~init~int(0, #t~string157.base, 3 + #t~string157.offset, 1);call #t~string159.base, #t~string159.offset := #Ultimate.allocOnStack(6);call write~init~int(32, #t~string159.base, #t~string159.offset, 1);call write~init~int(70, #t~string159.base, 1 + #t~string159.offset, 1);call write~init~int(95, #t~string159.base, 2 + #t~string159.offset, 1);call write~init~int(112, #t~string159.base, 3 + #t~string159.offset, 1);call write~init~int(58, #t~string159.base, 4 + #t~string159.offset, 1);call write~init~int(0, #t~string159.base, 5 + #t~string159.offset, 1);call #t~string162.base, #t~string162.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string162.base, #t~string162.offset, 1);call write~init~int(37, #t~string162.base, 1 + #t~string162.offset, 1);call write~init~int(105, #t~string162.base, 2 + #t~string162.offset, 1);call write~init~int(0, #t~string162.base, 3 + #t~string162.offset, 1);call #t~string165.base, #t~string165.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string165.base, #t~string165.offset, 1);call write~init~int(37, #t~string165.base, 1 + #t~string165.offset, 1);call write~init~int(105, #t~string165.base, 2 + #t~string165.offset, 1);call write~init~int(0, #t~string165.base, 3 + #t~string165.offset, 1);call #t~string168.base, #t~string168.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string168.base, #t~string168.offset, 1);call write~init~int(37, #t~string168.base, 1 + #t~string168.offset, 1);call write~init~int(105, #t~string168.base, 2 + #t~string168.offset, 1);call write~init~int(0, #t~string168.base, 3 + #t~string168.offset, 1);call #t~string171.base, #t~string171.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string171.base, #t~string171.offset, 1);call write~init~int(37, #t~string171.base, 1 + #t~string171.offset, 1);call write~init~int(105, #t~string171.base, 2 + #t~string171.offset, 1);call write~init~int(0, #t~string171.base, 3 + #t~string171.offset, 1);call #t~string174.base, #t~string174.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string174.base, #t~string174.offset, 1);call write~init~int(37, #t~string174.base, 1 + #t~string174.offset, 1);call write~init~int(105, #t~string174.base, 2 + #t~string174.offset, 1);call write~init~int(0, #t~string174.base, 3 + #t~string174.offset, 1);call #t~string176.base, #t~string176.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string176.base, #t~string176.offset, 1);call write~init~int(0, #t~string176.base, 1 + #t~string176.offset, 1);call #t~string179.base, #t~string179.offset := #Ultimate.allocOnStack(9);~weight~0 := 0;~maximumWeight~0 := 100;~executiveFloor~0 := 4;~blocked~0 := 0;~cleanupTimeShifts~0 := 12;~prevDir~0 := 0;~calls_0~0 := 0;~calls_1~0 := 0;~calls_2~0 := 0;~calls_3~0 := 0;~calls_4~0 := 0;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~currentHeading~0 := 1;~currentFloorID~0 := 0;~persons_0~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_3~0 := 0;~persons_4~0 := 0;~persons_5~0 := 0;~doorState~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0; 4611#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~1#1, main_~tmp~11#1;havoc main_~retValue_acc~1#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 3817#L1414true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 11721#L1407true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 2842#L1422true main_#t~ret33#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 3985#L591true assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 14601#L564true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret22#1, aliceCall_~tmp~4#1;havoc aliceCall_~tmp~4#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~6#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~6#1; 6777#L1317true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~6#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~6#1; 11788#L1342true aliceCall_#t~ret22#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~4#1 := aliceCall_#t~ret22#1;havoc aliceCall_#t~ret22#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~4#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 13494#L964true assume 0 == initPersonOnFloor_~floor#1; 17884#L965true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 384#L1072-1true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 13215#L756true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 11192#L768-2true assume { :end_inline_callOnFloor } true; 11976#L1108true assume { :end_inline_initPersonOnFloor } true; 941#L324true assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret23#1, angelinaCall_~tmp~5#1;havoc angelinaCall_~tmp~5#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~6#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~6#1; 14638#L1317-1true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~6#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~6#1; 17107#L1342-1true angelinaCall_#t~ret23#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~5#1 := angelinaCall_#t~ret23#1;havoc angelinaCall_#t~ret23#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~5#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 820#L964-1true assume 0 == initPersonOnFloor_~floor#1; 6159#L965-2true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 5685#L1072-3true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 10079#L756-2true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 6978#L768-5true assume { :end_inline_callOnFloor } true; 5143#L1108-1true assume { :end_inline_initPersonOnFloor } true; 4458#L335true assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret130#1, timeShift_~tmp~29#1;havoc timeShift_~tmp~29#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret13#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~17#1;havoc getCurrentHeading_~retValue_acc~17#1;getCurrentHeading_~retValue_acc~17#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~17#1; 15889#L2092true __utac_acc__Specification13_spec__1_#t~ret13#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret13#1;havoc __utac_acc__Specification13_spec__1_#t~ret13#1; 4948#L170true assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~15#1;havoc areDoorsOpen_~retValue_acc~15#1;areDoorsOpen_~retValue_acc~15#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~15#1; 9012#L2049true timeShift_#t~ret130#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~29#1 := timeShift_#t~ret130#1;havoc timeShift_#t~ret130#1; 977#L3060true assume 0 != timeShift_~tmp~29#1; 9959#L3061true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 9244#L3060-1true assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret14#1, __utac_acc__Specification13_spec__2_#t~ret15#1, __utac_acc__Specification13_spec__2_#t~ret16#1, __utac_acc__Specification13_spec__2_#t~ret17#1, __utac_acc__Specification13_spec__2_#t~ret18#1, __utac_acc__Specification13_spec__2_#t~ret19#1, __utac_acc__Specification13_spec__2_~tmp~2#1, __utac_acc__Specification13_spec__2_~tmp___0~2#1, __utac_acc__Specification13_spec__2_~tmp___1~2#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~2#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~2#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 17948#L188true assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 7633#L189true assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~29#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~29#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 2914#L3280true assume 1 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i~3#1 := 0;existInLiftCallsInDirection_~i~3#1 := 1 + ~currentFloorID~0; 15184#L3284-2true [2021-11-13 17:49:02,693 INFO L793 eck$LassoCheckResult]: Loop: 15184#L3284-2true assume !false; 3443#L3285true assume existInLiftCallsInDirection_~i~3#1 < 5; 5593#L3286true assume !(0 == existInLiftCallsInDirection_~i~3#1); 11228#L3299true assume !(1 == existInLiftCallsInDirection_~i~3#1); 11514#L3308true assume !(2 == existInLiftCallsInDirection_~i~3#1); 17188#L3317true assume !(3 == existInLiftCallsInDirection_~i~3#1); 15230#L3326true assume !(4 == existInLiftCallsInDirection_~i~3#1); 3542#L3327-1true existInLiftCallsInDirection_~i~3#1 := 1 + existInLiftCallsInDirection_~i~3#1; 15184#L3284-2true [2021-11-13 17:49:02,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:02,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1516016117, now seen corresponding path program 1 times [2021-11-13 17:49:02,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:49:02,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642045626] [2021-11-13 17:49:02,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:02,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:49:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:03,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:03,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:49:03,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642045626] [2021-11-13 17:49:03,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642045626] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:49:03,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:49:03,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:49:03,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371902771] [2021-11-13 17:49:03,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:49:03,300 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 17:49:03,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:03,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1774605181, now seen corresponding path program 1 times [2021-11-13 17:49:03,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:49:03,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575641095] [2021-11-13 17:49:03,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:03,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:49:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:49:03,325 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:49:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:49:03,359 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:49:03,452 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:49:03,452 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:49:03,452 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:49:03,452 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:49:03,453 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-13 17:49:03,453 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:03,453 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:49:03,453 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:49:03,453 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product32.cil.c_Iteration1_Loop [2021-11-13 17:49:03,453 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:49:03,453 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:49:03,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:49:03,615 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:49:03,616 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-13 17:49:03,619 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:03,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:49:03,645 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:49:03,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-13 17:49:03,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 17:49:03,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:49:03,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:49:03,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:03,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:49:03,747 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:49:03,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-13 17:49:03,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-13 17:49:03,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:49:03,826 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-13 17:49:03,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:49:03,833 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:49:03,833 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:49:03,833 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:49:03,833 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:49:03,833 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 17:49:03,833 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:03,834 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:49:03,834 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:49:03,834 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product32.cil.c_Iteration1_Loop [2021-11-13 17:49:03,834 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:49:03,834 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:49:03,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:49:03,936 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:49:03,941 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 17:49:03,943 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:03,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:49:03,946 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:49:03,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:49:03,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-13 17:49:03,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:49:03,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:49:03,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:49:03,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:49:03,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:49:03,973 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:49:03,974 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:49:03,989 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 17:49:03,999 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-13 17:49:03,999 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-13 17:49:04,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:04,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:49:04,009 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:49:04,030 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 17:49:04,030 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-13 17:49:04,031 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 17:49:04,031 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_existInLiftCallsInDirection_~i~3#1) = -1*ULTIMATE.start_existInLiftCallsInDirection_~i~3#1 Supporting invariants [] [2021-11-13 17:49:04,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-13 17:49:04,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:49:04,081 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-13 17:49:04,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:04,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-13 17:49:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:04,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:49:04,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:49:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:04,831 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 17:49:04,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:49:05,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:05,194 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2021-11-13 17:49:05,233 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18482 states, 18481 states have (on average 1.8746279963205454) internal successors, (34645), 18481 states have internal predecessors, (34645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:18,261 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18482 states, 18481 states have (on average 1.8746279963205454) internal successors, (34645), 18481 states have internal predecessors, (34645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 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) Result 217756 states and 408017 transitions. Complement of second has 18 states. [2021-11-13 17:49:18,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2021-11-13 17:49:18,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:18,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 221339 transitions. [2021-11-13 17:49:18,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 221339 transitions. Stem has 34 letters. Loop has 8 letters. [2021-11-13 17:49:18,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:49:18,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 221339 transitions. Stem has 42 letters. Loop has 8 letters. [2021-11-13 17:49:18,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:49:18,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 221339 transitions. Stem has 34 letters. Loop has 16 letters. [2021-11-13 17:49:18,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:49:18,594 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 217756 states and 408017 transitions. [2021-11-13 17:49:20,592 INFO L131 ngComponentsAnalysis]: Automaton has 66 accepting balls. 29608 [2021-11-13 17:49:22,131 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 217756 states to 118005 states and 221062 transitions. [2021-11-13 17:49:22,132 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 117975 [2021-11-13 17:49:22,351 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 117976 [2021-11-13 17:49:22,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 118005 states and 221062 transitions. [2021-11-13 17:49:22,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-13 17:49:22,355 INFO L681 BuchiCegarLoop]: Abstraction has 118005 states and 221062 transitions. [2021-11-13 17:49:22,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118005 states and 221062 transitions. [2021-11-13 17:49:23,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118005 to 33236. [2021-11-13 17:49:23,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33236 states, 33236 states have (on average 1.87089300758214) internal successors, (62181), 33235 states have internal predecessors, (62181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:24,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33236 states to 33236 states and 62181 transitions. [2021-11-13 17:49:24,438 INFO L704 BuchiCegarLoop]: Abstraction has 33236 states and 62181 transitions. [2021-11-13 17:49:24,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:49:24,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:49:24,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:49:24,447 INFO L87 Difference]: Start difference. First operand 33236 states and 62181 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:25,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:49:25,902 INFO L93 Difference]: Finished difference Result 48015 states and 89681 transitions. [2021-11-13 17:49:25,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:49:25,903 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48015 states and 89681 transitions. [2021-11-13 17:49:26,281 INFO L131 ngComponentsAnalysis]: Automaton has 78 accepting balls. 15906 [2021-11-13 17:49:26,571 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48015 states to 48002 states and 89668 transitions. [2021-11-13 17:49:26,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47983 [2021-11-13 17:49:26,662 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47983 [2021-11-13 17:49:26,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48002 states and 89668 transitions. [2021-11-13 17:49:26,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-13 17:49:26,669 INFO L681 BuchiCegarLoop]: Abstraction has 48002 states and 89668 transitions. [2021-11-13 17:49:26,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48002 states and 89668 transitions. [2021-11-13 17:49:27,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48002 to 18479. [2021-11-13 17:49:27,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18479 states, 18479 states have (on average 1.8680123383299962) internal successors, (34519), 18478 states have internal predecessors, (34519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:27,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18479 states to 18479 states and 34519 transitions. [2021-11-13 17:49:27,960 INFO L704 BuchiCegarLoop]: Abstraction has 18479 states and 34519 transitions. [2021-11-13 17:49:27,960 INFO L587 BuchiCegarLoop]: Abstraction has 18479 states and 34519 transitions. [2021-11-13 17:49:27,961 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-13 17:49:27,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18479 states and 34519 transitions. [2021-11-13 17:49:28,049 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4182 [2021-11-13 17:49:28,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:49:28,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:49:28,054 INFO L842 BuchiCegarLoop]: Counterexample stem 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] [2021-11-13 17:49:28,054 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:49:28,055 INFO L791 eck$LassoCheckResult]: Stem: 330483#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(32);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(10);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(4);call write~init~int(91, #t~string133.base, #t~string133.offset, 1);call write~init~int(95, #t~string133.base, 1 + #t~string133.offset, 1);call write~init~int(93, #t~string133.base, 2 + #t~string133.offset, 1);call write~init~int(0, #t~string133.base, 3 + #t~string133.offset, 1);call #t~string135.base, #t~string135.offset := #Ultimate.allocOnStack(4);call write~init~int(91, #t~string135.base, #t~string135.offset, 1);call write~init~int(93, #t~string135.base, 1 + #t~string135.offset, 1);call write~init~int(32, #t~string135.base, 2 + #t~string135.offset, 1);call write~init~int(0, #t~string135.base, 3 + #t~string135.offset, 1);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(5);call write~init~int(32, #t~string137.base, #t~string137.offset, 1);call write~init~int(97, #t~string137.base, 1 + #t~string137.offset, 1);call write~init~int(116, #t~string137.base, 2 + #t~string137.offset, 1);call write~init~int(32, #t~string137.base, 3 + #t~string137.offset, 1);call write~init~int(0, #t~string137.base, 4 + #t~string137.offset, 1);call #t~string139.base, #t~string139.offset := #Ultimate.allocOnStack(3);call write~init~int(37, #t~string139.base, #t~string139.offset, 1);call write~init~int(105, #t~string139.base, 1 + #t~string139.offset, 1);call write~init~int(0, #t~string139.base, 2 + #t~string139.offset, 1);call #t~string141.base, #t~string141.offset := #Ultimate.allocOnStack(10);call #t~string143.base, #t~string143.offset := #Ultimate.allocOnStack(3);call write~init~int(117, #t~string143.base, #t~string143.offset, 1);call write~init~int(112, #t~string143.base, 1 + #t~string143.offset, 1);call write~init~int(0, #t~string143.base, 2 + #t~string143.offset, 1);call #t~string145.base, #t~string145.offset := #Ultimate.allocOnStack(5);call write~init~int(100, #t~string145.base, #t~string145.offset, 1);call write~init~int(111, #t~string145.base, 1 + #t~string145.offset, 1);call write~init~int(119, #t~string145.base, 2 + #t~string145.offset, 1);call write~init~int(110, #t~string145.base, 3 + #t~string145.offset, 1);call write~init~int(0, #t~string145.base, 4 + #t~string145.offset, 1);call #t~string147.base, #t~string147.offset := #Ultimate.allocOnStack(7);call write~init~int(32, #t~string147.base, #t~string147.offset, 1);call write~init~int(73, #t~string147.base, 1 + #t~string147.offset, 1);call write~init~int(76, #t~string147.base, 2 + #t~string147.offset, 1);call write~init~int(95, #t~string147.base, 3 + #t~string147.offset, 1);call write~init~int(112, #t~string147.base, 4 + #t~string147.offset, 1);call write~init~int(58, #t~string147.base, 5 + #t~string147.offset, 1);call write~init~int(0, #t~string147.base, 6 + #t~string147.offset, 1);call #t~string149.base, #t~string149.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string149.base, #t~string149.offset, 1);call write~init~int(37, #t~string149.base, 1 + #t~string149.offset, 1);call write~init~int(105, #t~string149.base, 2 + #t~string149.offset, 1);call write~init~int(0, #t~string149.base, 3 + #t~string149.offset, 1);call #t~string151.base, #t~string151.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string151.base, #t~string151.offset, 1);call write~init~int(37, #t~string151.base, 1 + #t~string151.offset, 1);call write~init~int(105, #t~string151.base, 2 + #t~string151.offset, 1);call write~init~int(0, #t~string151.base, 3 + #t~string151.offset, 1);call #t~string153.base, #t~string153.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string153.base, #t~string153.offset, 1);call write~init~int(37, #t~string153.base, 1 + #t~string153.offset, 1);call write~init~int(105, #t~string153.base, 2 + #t~string153.offset, 1);call write~init~int(0, #t~string153.base, 3 + #t~string153.offset, 1);call #t~string155.base, #t~string155.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string155.base, #t~string155.offset, 1);call write~init~int(37, #t~string155.base, 1 + #t~string155.offset, 1);call write~init~int(105, #t~string155.base, 2 + #t~string155.offset, 1);call write~init~int(0, #t~string155.base, 3 + #t~string155.offset, 1);call #t~string157.base, #t~string157.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string157.base, #t~string157.offset, 1);call write~init~int(37, #t~string157.base, 1 + #t~string157.offset, 1);call write~init~int(105, #t~string157.base, 2 + #t~string157.offset, 1);call write~init~int(0, #t~string157.base, 3 + #t~string157.offset, 1);call #t~string159.base, #t~string159.offset := #Ultimate.allocOnStack(6);call write~init~int(32, #t~string159.base, #t~string159.offset, 1);call write~init~int(70, #t~string159.base, 1 + #t~string159.offset, 1);call write~init~int(95, #t~string159.base, 2 + #t~string159.offset, 1);call write~init~int(112, #t~string159.base, 3 + #t~string159.offset, 1);call write~init~int(58, #t~string159.base, 4 + #t~string159.offset, 1);call write~init~int(0, #t~string159.base, 5 + #t~string159.offset, 1);call #t~string162.base, #t~string162.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string162.base, #t~string162.offset, 1);call write~init~int(37, #t~string162.base, 1 + #t~string162.offset, 1);call write~init~int(105, #t~string162.base, 2 + #t~string162.offset, 1);call write~init~int(0, #t~string162.base, 3 + #t~string162.offset, 1);call #t~string165.base, #t~string165.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string165.base, #t~string165.offset, 1);call write~init~int(37, #t~string165.base, 1 + #t~string165.offset, 1);call write~init~int(105, #t~string165.base, 2 + #t~string165.offset, 1);call write~init~int(0, #t~string165.base, 3 + #t~string165.offset, 1);call #t~string168.base, #t~string168.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string168.base, #t~string168.offset, 1);call write~init~int(37, #t~string168.base, 1 + #t~string168.offset, 1);call write~init~int(105, #t~string168.base, 2 + #t~string168.offset, 1);call write~init~int(0, #t~string168.base, 3 + #t~string168.offset, 1);call #t~string171.base, #t~string171.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string171.base, #t~string171.offset, 1);call write~init~int(37, #t~string171.base, 1 + #t~string171.offset, 1);call write~init~int(105, #t~string171.base, 2 + #t~string171.offset, 1);call write~init~int(0, #t~string171.base, 3 + #t~string171.offset, 1);call #t~string174.base, #t~string174.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string174.base, #t~string174.offset, 1);call write~init~int(37, #t~string174.base, 1 + #t~string174.offset, 1);call write~init~int(105, #t~string174.base, 2 + #t~string174.offset, 1);call write~init~int(0, #t~string174.base, 3 + #t~string174.offset, 1);call #t~string176.base, #t~string176.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string176.base, #t~string176.offset, 1);call write~init~int(0, #t~string176.base, 1 + #t~string176.offset, 1);call #t~string179.base, #t~string179.offset := #Ultimate.allocOnStack(9);~weight~0 := 0;~maximumWeight~0 := 100;~executiveFloor~0 := 4;~blocked~0 := 0;~cleanupTimeShifts~0 := 12;~prevDir~0 := 0;~calls_0~0 := 0;~calls_1~0 := 0;~calls_2~0 := 0;~calls_3~0 := 0;~calls_4~0 := 0;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~currentHeading~0 := 1;~currentFloorID~0 := 0;~persons_0~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_3~0 := 0;~persons_4~0 := 0;~persons_5~0 := 0;~doorState~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0; 326737#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~1#1, main_~tmp~11#1;havoc main_~retValue_acc~1#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 325481#L1414 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 325482#L1407 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 323816#L1422 main_#t~ret33#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 323817#L591 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 325738#L564 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret22#1, aliceCall_~tmp~4#1;havoc aliceCall_~tmp~4#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~6#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~6#1; 329637#L1317 assume !(0 == getOrigin_~person#1); 329084#L1321 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~6#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~6#1; 326601#L1342 aliceCall_#t~ret22#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~4#1 := aliceCall_#t~ret22#1;havoc aliceCall_#t~ret22#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~4#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 334062#L964 assume 0 == initPersonOnFloor_~floor#1; 335052#L965 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 318688#L1072-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 318689#L756 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 319028#L768-2 assume { :end_inline_callOnFloor } true; 333682#L1108 assume { :end_inline_initPersonOnFloor } true; 320034#L324 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret23#1, angelinaCall_~tmp~5#1;havoc angelinaCall_~tmp~5#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~6#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~6#1; 320035#L1317-1 assume !(0 == getOrigin_~person#1); 329474#L1321-1 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~6#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~6#1; 327874#L1342-1 angelinaCall_#t~ret23#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~5#1 := angelinaCall_#t~ret23#1;havoc angelinaCall_#t~ret23#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~5#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 319754#L964-1 assume 0 == initPersonOnFloor_~floor#1; 319755#L965-2 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 317670#L1072-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 328238#L756-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 324861#L768-5 assume { :end_inline_callOnFloor } true; 327499#L1108-1 assume { :end_inline_initPersonOnFloor } true; 326470#L335 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret130#1, timeShift_~tmp~29#1;havoc timeShift_~tmp~29#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret13#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~17#1;havoc getCurrentHeading_~retValue_acc~17#1;getCurrentHeading_~retValue_acc~17#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~17#1; 326471#L2092 __utac_acc__Specification13_spec__1_#t~ret13#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret13#1;havoc __utac_acc__Specification13_spec__1_#t~ret13#1; 327216#L170 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~15#1;havoc areDoorsOpen_~retValue_acc~15#1;areDoorsOpen_~retValue_acc~15#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~15#1; 327217#L2049 timeShift_#t~ret130#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~29#1 := timeShift_#t~ret130#1;havoc timeShift_#t~ret130#1; 320114#L3060 assume 0 != timeShift_~tmp~29#1; 320116#L3061 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 332144#L3060-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret14#1, __utac_acc__Specification13_spec__2_#t~ret15#1, __utac_acc__Specification13_spec__2_#t~ret16#1, __utac_acc__Specification13_spec__2_#t~ret17#1, __utac_acc__Specification13_spec__2_#t~ret18#1, __utac_acc__Specification13_spec__2_#t~ret19#1, __utac_acc__Specification13_spec__2_~tmp~2#1, __utac_acc__Specification13_spec__2_~tmp___0~2#1, __utac_acc__Specification13_spec__2_~tmp___1~2#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~2#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~2#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 332145#L188 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 330594#L189 assume !(1 == ~prevDir~0); 330595#L215 assume 0 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 1;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~29#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~29#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 321489#L3280-2 assume 1 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i~3#1 := 0;existInLiftCallsInDirection_~i~3#1 := 1 + ~currentFloorID~0; 321491#L3284-8 [2021-11-13 17:49:28,055 INFO L793 eck$LassoCheckResult]: Loop: 321491#L3284-8 assume !false; 329684#L3285-2 assume existInLiftCallsInDirection_~i~3#1 < 5; 329685#L3286-2 assume !(0 == existInLiftCallsInDirection_~i~3#1); 325502#L3299-2 assume !(1 == existInLiftCallsInDirection_~i~3#1); 319392#L3308-2 assume !(2 == existInLiftCallsInDirection_~i~3#1); 326695#L3317-2 assume !(3 == existInLiftCallsInDirection_~i~3#1); 324038#L3326-2 assume !(4 == existInLiftCallsInDirection_~i~3#1); 335397#L3327-5 existInLiftCallsInDirection_~i~3#1 := 1 + existInLiftCallsInDirection_~i~3#1; 321491#L3284-8 [2021-11-13 17:49:28,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:28,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1974373456, now seen corresponding path program 1 times [2021-11-13 17:49:28,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:49:28,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400954024] [2021-11-13 17:49:28,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:28,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:49:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:28,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:28,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:49:28,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400954024] [2021-11-13 17:49:28,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400954024] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:49:28,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:49:28,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:49:28,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092918828] [2021-11-13 17:49:28,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:49:28,219 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 17:49:28,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:28,220 INFO L85 PathProgramCache]: Analyzing trace with hash -443123075, now seen corresponding path program 1 times [2021-11-13 17:49:28,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:49:28,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485138302] [2021-11-13 17:49:28,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:28,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:49:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:49:28,228 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:49:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:49:28,240 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:49:28,292 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:49:28,292 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:49:28,293 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:49:28,293 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:49:28,293 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-13 17:49:28,293 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:28,293 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:49:28,294 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:49:28,294 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product32.cil.c_Iteration2_Loop [2021-11-13 17:49:28,294 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:49:28,294 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:49:28,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:49:28,361 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:49:28,361 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-13 17:49:28,361 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:28,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:49:28,362 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:49:28,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 17:49:28,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:49:28,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-13 17:49:28,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-13 17:49:28,444 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:28,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:49:28,446 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:49:28,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-13 17:49:28,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:49:28,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-13 17:49:28,526 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-13 17:49:28,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-13 17:49:28,536 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:49:28,536 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:49:28,536 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:49:28,536 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:49:28,536 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 17:49:28,536 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:28,536 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:49:28,536 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:49:28,537 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product32.cil.c_Iteration2_Loop [2021-11-13 17:49:28,537 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:49:28,537 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:49:28,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:49:28,622 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:49:28,622 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 17:49:28,622 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:28,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:49:28,626 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:49:28,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:49:28,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:49:28,641 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:49:28,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:49:28,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:49:28,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:49:28,643 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:49:28,643 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:49:28,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-13 17:49:28,661 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 17:49:28,691 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-13 17:49:28,692 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-13 17:49:28,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:28,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:49:28,698 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:49:28,710 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 17:49:28,710 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-13 17:49:28,710 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 17:49:28,711 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_existInLiftCallsInDirection_~i~3#1) = -1*ULTIMATE.start_existInLiftCallsInDirection_~i~3#1 Supporting invariants [] [2021-11-13 17:49:28,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-13 17:49:28,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-13 17:49:28,754 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-13 17:49:28,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:28,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:49:28,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:49:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:29,075 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 17:49:29,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:49:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:29,357 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2021-11-13 17:49:29,358 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18479 states and 34519 transitions. cyclomatic complexity: 16074 Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:30,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-13 17:49:38,469 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18479 states and 34519 transitions. cyclomatic complexity: 16074. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 202763 states and 379773 transitions. Complement of second has 17 states. [2021-11-13 17:49:38,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2021-11-13 17:49:38,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:38,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 193304 transitions. [2021-11-13 17:49:38,724 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 193304 transitions. Stem has 37 letters. Loop has 8 letters. [2021-11-13 17:49:38,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:49:38,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 193304 transitions. Stem has 45 letters. Loop has 8 letters. [2021-11-13 17:49:38,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:49:38,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 193304 transitions. Stem has 37 letters. Loop has 16 letters. [2021-11-13 17:49:38,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:49:38,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 202763 states and 379773 transitions. [2021-11-13 17:49:40,150 INFO L131 ngComponentsAnalysis]: Automaton has 66 accepting balls. 29608 [2021-11-13 17:49:40,768 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 202763 states to 118011 states and 220969 transitions. [2021-11-13 17:49:40,768 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 117962 [2021-11-13 17:49:40,906 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 117963 [2021-11-13 17:49:40,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 118011 states and 220969 transitions. [2021-11-13 17:49:40,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-13 17:49:40,925 INFO L681 BuchiCegarLoop]: Abstraction has 118011 states and 220969 transitions. [2021-11-13 17:49:41,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118011 states and 220969 transitions. [2021-11-13 17:49:42,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118011 to 18503. [2021-11-13 17:49:42,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18503 states, 18503 states have (on average 1.8676430849051504) internal successors, (34557), 18502 states have internal predecessors, (34557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:42,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18503 states to 18503 states and 34557 transitions. [2021-11-13 17:49:42,540 INFO L704 BuchiCegarLoop]: Abstraction has 18503 states and 34557 transitions. [2021-11-13 17:49:42,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:49:42,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:49:42,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:49:42,543 INFO L87 Difference]: Start difference. First operand 18503 states and 34557 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:44,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:49:44,171 INFO L93 Difference]: Finished difference Result 55292 states and 103241 transitions. [2021-11-13 17:49:44,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:49:44,173 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55292 states and 103241 transitions. [2021-11-13 17:49:44,984 INFO L131 ngComponentsAnalysis]: Automaton has 99 accepting balls. 12558 [2021-11-13 17:49:45,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55292 states to 55292 states and 103241 transitions. [2021-11-13 17:49:45,216 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55178 [2021-11-13 17:49:45,271 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 55178 [2021-11-13 17:49:45,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55292 states and 103241 transitions. [2021-11-13 17:49:45,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-13 17:49:45,272 INFO L681 BuchiCegarLoop]: Abstraction has 55292 states and 103241 transitions. [2021-11-13 17:49:45,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55292 states and 103241 transitions. [2021-11-13 17:49:45,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55292 to 18518. [2021-11-13 17:49:45,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18518 states, 18518 states have (on average 1.8669402743276813) internal successors, (34572), 18517 states have internal predecessors, (34572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:45,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18518 states to 18518 states and 34572 transitions. [2021-11-13 17:49:45,919 INFO L704 BuchiCegarLoop]: Abstraction has 18518 states and 34572 transitions. [2021-11-13 17:49:45,920 INFO L587 BuchiCegarLoop]: Abstraction has 18518 states and 34572 transitions. [2021-11-13 17:49:45,920 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-13 17:49:45,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18518 states and 34572 transitions. [2021-11-13 17:49:46,002 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4186 [2021-11-13 17:49:46,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:49:46,003 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:49:46,006 INFO L842 BuchiCegarLoop]: Counterexample stem 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] [2021-11-13 17:49:46,007 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:49:46,007 INFO L791 eck$LassoCheckResult]: Stem: 625714#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(32);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(10);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(4);call write~init~int(91, #t~string133.base, #t~string133.offset, 1);call write~init~int(95, #t~string133.base, 1 + #t~string133.offset, 1);call write~init~int(93, #t~string133.base, 2 + #t~string133.offset, 1);call write~init~int(0, #t~string133.base, 3 + #t~string133.offset, 1);call #t~string135.base, #t~string135.offset := #Ultimate.allocOnStack(4);call write~init~int(91, #t~string135.base, #t~string135.offset, 1);call write~init~int(93, #t~string135.base, 1 + #t~string135.offset, 1);call write~init~int(32, #t~string135.base, 2 + #t~string135.offset, 1);call write~init~int(0, #t~string135.base, 3 + #t~string135.offset, 1);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(5);call write~init~int(32, #t~string137.base, #t~string137.offset, 1);call write~init~int(97, #t~string137.base, 1 + #t~string137.offset, 1);call write~init~int(116, #t~string137.base, 2 + #t~string137.offset, 1);call write~init~int(32, #t~string137.base, 3 + #t~string137.offset, 1);call write~init~int(0, #t~string137.base, 4 + #t~string137.offset, 1);call #t~string139.base, #t~string139.offset := #Ultimate.allocOnStack(3);call write~init~int(37, #t~string139.base, #t~string139.offset, 1);call write~init~int(105, #t~string139.base, 1 + #t~string139.offset, 1);call write~init~int(0, #t~string139.base, 2 + #t~string139.offset, 1);call #t~string141.base, #t~string141.offset := #Ultimate.allocOnStack(10);call #t~string143.base, #t~string143.offset := #Ultimate.allocOnStack(3);call write~init~int(117, #t~string143.base, #t~string143.offset, 1);call write~init~int(112, #t~string143.base, 1 + #t~string143.offset, 1);call write~init~int(0, #t~string143.base, 2 + #t~string143.offset, 1);call #t~string145.base, #t~string145.offset := #Ultimate.allocOnStack(5);call write~init~int(100, #t~string145.base, #t~string145.offset, 1);call write~init~int(111, #t~string145.base, 1 + #t~string145.offset, 1);call write~init~int(119, #t~string145.base, 2 + #t~string145.offset, 1);call write~init~int(110, #t~string145.base, 3 + #t~string145.offset, 1);call write~init~int(0, #t~string145.base, 4 + #t~string145.offset, 1);call #t~string147.base, #t~string147.offset := #Ultimate.allocOnStack(7);call write~init~int(32, #t~string147.base, #t~string147.offset, 1);call write~init~int(73, #t~string147.base, 1 + #t~string147.offset, 1);call write~init~int(76, #t~string147.base, 2 + #t~string147.offset, 1);call write~init~int(95, #t~string147.base, 3 + #t~string147.offset, 1);call write~init~int(112, #t~string147.base, 4 + #t~string147.offset, 1);call write~init~int(58, #t~string147.base, 5 + #t~string147.offset, 1);call write~init~int(0, #t~string147.base, 6 + #t~string147.offset, 1);call #t~string149.base, #t~string149.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string149.base, #t~string149.offset, 1);call write~init~int(37, #t~string149.base, 1 + #t~string149.offset, 1);call write~init~int(105, #t~string149.base, 2 + #t~string149.offset, 1);call write~init~int(0, #t~string149.base, 3 + #t~string149.offset, 1);call #t~string151.base, #t~string151.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string151.base, #t~string151.offset, 1);call write~init~int(37, #t~string151.base, 1 + #t~string151.offset, 1);call write~init~int(105, #t~string151.base, 2 + #t~string151.offset, 1);call write~init~int(0, #t~string151.base, 3 + #t~string151.offset, 1);call #t~string153.base, #t~string153.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string153.base, #t~string153.offset, 1);call write~init~int(37, #t~string153.base, 1 + #t~string153.offset, 1);call write~init~int(105, #t~string153.base, 2 + #t~string153.offset, 1);call write~init~int(0, #t~string153.base, 3 + #t~string153.offset, 1);call #t~string155.base, #t~string155.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string155.base, #t~string155.offset, 1);call write~init~int(37, #t~string155.base, 1 + #t~string155.offset, 1);call write~init~int(105, #t~string155.base, 2 + #t~string155.offset, 1);call write~init~int(0, #t~string155.base, 3 + #t~string155.offset, 1);call #t~string157.base, #t~string157.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string157.base, #t~string157.offset, 1);call write~init~int(37, #t~string157.base, 1 + #t~string157.offset, 1);call write~init~int(105, #t~string157.base, 2 + #t~string157.offset, 1);call write~init~int(0, #t~string157.base, 3 + #t~string157.offset, 1);call #t~string159.base, #t~string159.offset := #Ultimate.allocOnStack(6);call write~init~int(32, #t~string159.base, #t~string159.offset, 1);call write~init~int(70, #t~string159.base, 1 + #t~string159.offset, 1);call write~init~int(95, #t~string159.base, 2 + #t~string159.offset, 1);call write~init~int(112, #t~string159.base, 3 + #t~string159.offset, 1);call write~init~int(58, #t~string159.base, 4 + #t~string159.offset, 1);call write~init~int(0, #t~string159.base, 5 + #t~string159.offset, 1);call #t~string162.base, #t~string162.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string162.base, #t~string162.offset, 1);call write~init~int(37, #t~string162.base, 1 + #t~string162.offset, 1);call write~init~int(105, #t~string162.base, 2 + #t~string162.offset, 1);call write~init~int(0, #t~string162.base, 3 + #t~string162.offset, 1);call #t~string165.base, #t~string165.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string165.base, #t~string165.offset, 1);call write~init~int(37, #t~string165.base, 1 + #t~string165.offset, 1);call write~init~int(105, #t~string165.base, 2 + #t~string165.offset, 1);call write~init~int(0, #t~string165.base, 3 + #t~string165.offset, 1);call #t~string168.base, #t~string168.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string168.base, #t~string168.offset, 1);call write~init~int(37, #t~string168.base, 1 + #t~string168.offset, 1);call write~init~int(105, #t~string168.base, 2 + #t~string168.offset, 1);call write~init~int(0, #t~string168.base, 3 + #t~string168.offset, 1);call #t~string171.base, #t~string171.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string171.base, #t~string171.offset, 1);call write~init~int(37, #t~string171.base, 1 + #t~string171.offset, 1);call write~init~int(105, #t~string171.base, 2 + #t~string171.offset, 1);call write~init~int(0, #t~string171.base, 3 + #t~string171.offset, 1);call #t~string174.base, #t~string174.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string174.base, #t~string174.offset, 1);call write~init~int(37, #t~string174.base, 1 + #t~string174.offset, 1);call write~init~int(105, #t~string174.base, 2 + #t~string174.offset, 1);call write~init~int(0, #t~string174.base, 3 + #t~string174.offset, 1);call #t~string176.base, #t~string176.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string176.base, #t~string176.offset, 1);call write~init~int(0, #t~string176.base, 1 + #t~string176.offset, 1);call #t~string179.base, #t~string179.offset := #Ultimate.allocOnStack(9);~weight~0 := 0;~maximumWeight~0 := 100;~executiveFloor~0 := 4;~blocked~0 := 0;~cleanupTimeShifts~0 := 12;~prevDir~0 := 0;~calls_0~0 := 0;~calls_1~0 := 0;~calls_2~0 := 0;~calls_3~0 := 0;~calls_4~0 := 0;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~currentHeading~0 := 1;~currentFloorID~0 := 0;~persons_0~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_3~0 := 0;~persons_4~0 := 0;~persons_5~0 := 0;~doorState~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0; 621961#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~1#1, main_~tmp~11#1;havoc main_~retValue_acc~1#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 620700#L1414 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 620701#L1407 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 619032#L1422 main_#t~ret33#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 619033#L591 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 620959#L564 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret22#1, aliceCall_~tmp~4#1;havoc aliceCall_~tmp~4#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~6#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~6#1; 624866#L1317 assume !(0 == getOrigin_~person#1); 624311#L1321 assume !(1 == getOrigin_~person#1); 624313#L1325 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~6#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~6#1; 621823#L1342 aliceCall_#t~ret22#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~4#1 := aliceCall_#t~ret22#1;havoc aliceCall_#t~ret22#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~4#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 631386#L964 assume 0 == initPersonOnFloor_~floor#1; 631364#L965 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 613905#L1072-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 613906#L756 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 614245#L768-2 assume { :end_inline_callOnFloor } true; 628915#L1108 assume { :end_inline_initPersonOnFloor } true; 615252#L324 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret23#1, angelinaCall_~tmp~5#1;havoc angelinaCall_~tmp~5#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~6#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~6#1; 615253#L1317-1 assume !(0 == getOrigin_~person#1); 624702#L1321-1 assume !(1 == getOrigin_~person#1); 623099#L1325-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~6#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~6#1; 623100#L1342-1 angelinaCall_#t~ret23#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~5#1 := angelinaCall_#t~ret23#1;havoc angelinaCall_#t~ret23#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~5#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 631392#L964-1 assume 0 == initPersonOnFloor_~floor#1; 624103#L965-2 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 612888#L1072-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 623464#L756-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 620080#L768-5 assume { :end_inline_callOnFloor } true; 622723#L1108-1 assume { :end_inline_initPersonOnFloor } true; 621692#L335 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret130#1, timeShift_~tmp~29#1;havoc timeShift_~tmp~29#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret13#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~17#1;havoc getCurrentHeading_~retValue_acc~17#1;getCurrentHeading_~retValue_acc~17#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~17#1; 621693#L2092 __utac_acc__Specification13_spec__1_#t~ret13#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret13#1;havoc __utac_acc__Specification13_spec__1_#t~ret13#1; 622439#L170 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~15#1;havoc areDoorsOpen_~retValue_acc~15#1;areDoorsOpen_~retValue_acc~15#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~15#1; 622440#L2049 timeShift_#t~ret130#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~29#1 := timeShift_#t~ret130#1;havoc timeShift_#t~ret130#1; 615332#L3060 assume 0 != timeShift_~tmp~29#1; 615334#L3061 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 627377#L3060-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret14#1, __utac_acc__Specification13_spec__2_#t~ret15#1, __utac_acc__Specification13_spec__2_#t~ret16#1, __utac_acc__Specification13_spec__2_#t~ret17#1, __utac_acc__Specification13_spec__2_#t~ret18#1, __utac_acc__Specification13_spec__2_#t~ret19#1, __utac_acc__Specification13_spec__2_~tmp~2#1, __utac_acc__Specification13_spec__2_~tmp___0~2#1, __utac_acc__Specification13_spec__2_~tmp___1~2#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~2#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~2#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 627378#L188 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 625825#L189 assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~29#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~29#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 619166#L3280 assume 1 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i~3#1 := 0;existInLiftCallsInDirection_~i~3#1 := 1 + ~currentFloorID~0; 619167#L3284-2 assume !false; 620065#L3285 [2021-11-13 17:49:46,008 INFO L793 eck$LassoCheckResult]: Loop: 620065#L3285 assume existInLiftCallsInDirection_~i~3#1 < 5; 620067#L3286 assume !(0 == existInLiftCallsInDirection_~i~3#1); 623337#L3299 assume 1 == existInLiftCallsInDirection_~i~3#1; 623947#L3301 assume !(0 != ~floorButtons_1~0); 623948#L3308 assume !(2 == existInLiftCallsInDirection_~i~3#1); 621574#L3317 assume !(3 == existInLiftCallsInDirection_~i~3#1); 623205#L3326 assume !(4 == existInLiftCallsInDirection_~i~3#1); 620235#L3327-1 existInLiftCallsInDirection_~i~3#1 := 1 + existInLiftCallsInDirection_~i~3#1; 620236#L3284-2 assume !false; 620065#L3285 [2021-11-13 17:49:46,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:46,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1800201023, now seen corresponding path program 1 times [2021-11-13 17:49:46,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:49:46,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262819760] [2021-11-13 17:49:46,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:46,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:49:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:46,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:49:46,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262819760] [2021-11-13 17:49:46,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262819760] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:49:46,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:49:46,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:49:46,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081667940] [2021-11-13 17:49:46,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:49:46,086 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 17:49:46,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:46,087 INFO L85 PathProgramCache]: Analyzing trace with hash 917806602, now seen corresponding path program 1 times [2021-11-13 17:49:46,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:49:46,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160824378] [2021-11-13 17:49:46,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:46,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:49:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:49:46,094 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:49:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:49:46,106 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:49:46,142 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:49:46,142 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:49:46,142 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:49:46,142 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:49:46,142 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-13 17:49:46,143 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:46,143 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:49:46,143 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:49:46,143 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product32.cil.c_Iteration3_Loop [2021-11-13 17:49:46,143 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:49:46,143 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:49:46,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:49:46,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:49:46,187 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:49:46,188 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-13 17:49:46,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:46,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:49:46,194 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:49:46,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-13 17:49:46,201 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 17:49:46,201 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:49:46,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-13 17:49:46,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:46,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:49:46,246 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:49:46,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-13 17:49:46,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:49:46,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-13 17:49:46,272 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-13 17:49:46,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-13 17:49:46,294 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:49:46,294 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:49:46,294 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:49:46,294 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:49:46,294 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 17:49:46,294 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:46,294 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:49:46,295 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:49:46,295 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product32.cil.c_Iteration3_Loop [2021-11-13 17:49:46,295 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:49:46,295 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:49:46,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:49:46,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:49:46,332 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:49:46,333 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 17:49:46,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:46,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:49:46,334 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:49:46,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:49:46,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:49:46,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:49:46,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:49:46,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:49:46,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:49:46,357 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:49:46,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:49:46,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-13 17:49:46,374 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 17:49:46,377 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-13 17:49:46,377 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-13 17:49:46,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:49:46,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:49:46,379 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:49:46,385 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 17:49:46,385 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-13 17:49:46,386 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 17:49:46,386 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_existInLiftCallsInDirection_~i~3#1) = -2*ULTIMATE.start_existInLiftCallsInDirection_~i~3#1 + 3 Supporting invariants [] [2021-11-13 17:49:46,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-13 17:49:46,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-13 17:49:46,427 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-13 17:49:46,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:49:46,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:49:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:46,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:49:46,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:49:46,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:46,885 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-13 17:49:46,885 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18518 states and 34572 transitions. cyclomatic complexity: 16089 Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:47,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8869094d-7e27-4cae-a709-0f911681ad94/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0