./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY --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 d84130cab59568fb669543ac086f4847eedfc87145b3c30d32e19c1d0d03b42f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:28:43,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:28:43,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:28:43,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:28:43,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:28:43,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:28:43,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:28:43,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:28:43,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:28:43,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:28:43,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:28:43,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:28:43,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:28:43,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:28:43,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:28:43,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:28:43,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:28:43,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:28:43,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:28:43,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:28:43,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:28:43,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:28:43,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:28:43,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:28:43,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:28:43,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:28:43,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:28:43,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:28:43,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:28:43,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:28:43,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:28:43,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:28:43,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:28:43,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:28:43,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:28:43,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:28:43,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:28:43,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:28:43,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:28:43,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:28:43,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:28:43,298 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-07 07:28:43,349 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:28:43,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:28:43,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:28:43,355 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:28:43,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:28:43,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:28:43,357 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:28:43,358 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 07:28:43,358 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 07:28:43,358 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 07:28:43,359 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 07:28:43,359 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 07:28:43,360 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 07:28:43,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:28:43,360 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:28:43,360 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 07:28:43,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:28:43,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:28:43,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:28:43,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 07:28:43,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 07:28:43,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 07:28:43,362 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:28:43,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:28:43,363 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 07:28:43,363 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:28:43,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 07:28:43,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:28:43,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:28:43,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:28:43,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:28:43,364 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:28:43,366 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 07:28:43,366 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_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d84130cab59568fb669543ac086f4847eedfc87145b3c30d32e19c1d0d03b42f [2021-11-07 07:28:43,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:28:43,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:28:43,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:28:43,756 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:28:43,758 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:28:43,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c [2021-11-07 07:28:43,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/data/6eaff9d28/07c0f436be284d8f9fdf147bc159a22a/FLAG0c2446cb0 [2021-11-07 07:28:44,608 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:28:44,609 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c [2021-11-07 07:28:44,635 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/data/6eaff9d28/07c0f436be284d8f9fdf147bc159a22a/FLAG0c2446cb0 [2021-11-07 07:28:44,789 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/data/6eaff9d28/07c0f436be284d8f9fdf147bc159a22a [2021-11-07 07:28:44,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:28:44,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:28:44,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:28:44,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:28:44,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:28:44,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:28:44" (1/1) ... [2021-11-07 07:28:44,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27055cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:44, skipping insertion in model container [2021-11-07 07:28:44,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:28:44" (1/1) ... [2021-11-07 07:28:44,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:28:44,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:28:45,367 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_ca81d574-3e70-45a5-bd98-f0a053f84dec/sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c[61393,61406] [2021-11-07 07:28:45,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:28:45,428 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:28:45,606 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_ca81d574-3e70-45a5-bd98-f0a053f84dec/sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c[61393,61406] [2021-11-07 07:28:45,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:28:45,681 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:28:45,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:45 WrapperNode [2021-11-07 07:28:45,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:28:45,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:28:45,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:28:45,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:28:45,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:45" (1/1) ... [2021-11-07 07:28:45,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:45" (1/1) ... [2021-11-07 07:28:46,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:28:46,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:28:46,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:28:46,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:28:46,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:45" (1/1) ... [2021-11-07 07:28:46,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:45" (1/1) ... [2021-11-07 07:28:47,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:45" (1/1) ... [2021-11-07 07:28:47,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:45" (1/1) ... [2021-11-07 07:28:47,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:45" (1/1) ... [2021-11-07 07:28:48,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:45" (1/1) ... [2021-11-07 07:28:48,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:45" (1/1) ... [2021-11-07 07:28:48,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:28:48,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:28:48,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:28:48,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:28:48,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:45" (1/1) ... [2021-11-07 07:28:48,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:28:48,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:48,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:28:48,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 07:28:48,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:28:48,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:28:48,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:28:48,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:29:10,734 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:29:10,735 INFO L299 CfgBuilder]: Removed 3811 assume(true) statements. [2021-11-07 07:29:10,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:29:10 BoogieIcfgContainer [2021-11-07 07:29:10,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:29:10,758 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 07:29:10,759 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 07:29:10,762 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 07:29:10,763 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:29:10,763 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 07:28:44" (1/3) ... [2021-11-07 07:29:10,765 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@700e6dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 07:29:10, skipping insertion in model container [2021-11-07 07:29:10,765 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:29:10,765 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:45" (2/3) ... [2021-11-07 07:29:10,766 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@700e6dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 07:29:10, skipping insertion in model container [2021-11-07 07:29:10,766 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:29:10,766 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:29:10" (3/3) ... [2021-11-07 07:29:10,768 INFO L389 chiAutomizerObserver]: Analyzing ICFG elevator_spec13_product30.cil.c [2021-11-07 07:29:10,819 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 07:29:10,820 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 07:29:10,820 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 07:29:10,820 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 07:29:10,820 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 07:29:10,820 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 07:29:10,821 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 07:29:10,821 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 07:29:11,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17666 states, 17665 states have (on average 1.8940843475799605) internal successors, (33459), 17665 states have internal predecessors, (33459), 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) [2021-11-07 07:29:11,494 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4021 [2021-11-07 07:29:11,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:29:11,494 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:29:11,507 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] [2021-11-07 07:29:11,507 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:11,507 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 07:29:11,558 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17666 states, 17665 states have (on average 1.8940843475799605) internal successors, (33459), 17665 states have internal predecessors, (33459), 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) [2021-11-07 07:29:11,798 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4021 [2021-11-07 07:29:11,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:29:11,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:29:11,802 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] [2021-11-07 07:29:11,802 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:11,817 INFO L791 eck$LassoCheckResult]: Stem: 7083#ULTIMATE.startENTRYtrue #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~string88.base, #t~string88.offset := #Ultimate.allocOnStack(10);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(4);call write~init~int(91, #t~string90.base, #t~string90.offset, 1);call write~init~int(95, #t~string90.base, 1 + #t~string90.offset, 1);call write~init~int(93, #t~string90.base, 2 + #t~string90.offset, 1);call write~init~int(0, #t~string90.base, 3 + #t~string90.offset, 1);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(4);call write~init~int(91, #t~string92.base, #t~string92.offset, 1);call write~init~int(93, #t~string92.base, 1 + #t~string92.offset, 1);call write~init~int(32, #t~string92.base, 2 + #t~string92.offset, 1);call write~init~int(0, #t~string92.base, 3 + #t~string92.offset, 1);call #t~string94.base, #t~string94.offset := #Ultimate.allocOnStack(5);call write~init~int(32, #t~string94.base, #t~string94.offset, 1);call write~init~int(97, #t~string94.base, 1 + #t~string94.offset, 1);call write~init~int(116, #t~string94.base, 2 + #t~string94.offset, 1);call write~init~int(32, #t~string94.base, 3 + #t~string94.offset, 1);call write~init~int(0, #t~string94.base, 4 + #t~string94.offset, 1);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(3);call write~init~int(37, #t~string96.base, #t~string96.offset, 1);call write~init~int(105, #t~string96.base, 1 + #t~string96.offset, 1);call write~init~int(0, #t~string96.base, 2 + #t~string96.offset, 1);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(10);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(3);call write~init~int(117, #t~string100.base, #t~string100.offset, 1);call write~init~int(112, #t~string100.base, 1 + #t~string100.offset, 1);call write~init~int(0, #t~string100.base, 2 + #t~string100.offset, 1);call #t~string102.base, #t~string102.offset := #Ultimate.allocOnStack(5);call write~init~int(100, #t~string102.base, #t~string102.offset, 1);call write~init~int(111, #t~string102.base, 1 + #t~string102.offset, 1);call write~init~int(119, #t~string102.base, 2 + #t~string102.offset, 1);call write~init~int(110, #t~string102.base, 3 + #t~string102.offset, 1);call write~init~int(0, #t~string102.base, 4 + #t~string102.offset, 1);call #t~string104.base, #t~string104.offset := #Ultimate.allocOnStack(7);call write~init~int(32, #t~string104.base, #t~string104.offset, 1);call write~init~int(73, #t~string104.base, 1 + #t~string104.offset, 1);call write~init~int(76, #t~string104.base, 2 + #t~string104.offset, 1);call write~init~int(95, #t~string104.base, 3 + #t~string104.offset, 1);call write~init~int(112, #t~string104.base, 4 + #t~string104.offset, 1);call write~init~int(58, #t~string104.base, 5 + #t~string104.offset, 1);call write~init~int(0, #t~string104.base, 6 + #t~string104.offset, 1);call #t~string106.base, #t~string106.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string106.base, #t~string106.offset, 1);call write~init~int(37, #t~string106.base, 1 + #t~string106.offset, 1);call write~init~int(105, #t~string106.base, 2 + #t~string106.offset, 1);call write~init~int(0, #t~string106.base, 3 + #t~string106.offset, 1);call #t~string108.base, #t~string108.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string108.base, #t~string108.offset, 1);call write~init~int(37, #t~string108.base, 1 + #t~string108.offset, 1);call write~init~int(105, #t~string108.base, 2 + #t~string108.offset, 1);call write~init~int(0, #t~string108.base, 3 + #t~string108.offset, 1);call #t~string110.base, #t~string110.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string110.base, #t~string110.offset, 1);call write~init~int(37, #t~string110.base, 1 + #t~string110.offset, 1);call write~init~int(105, #t~string110.base, 2 + #t~string110.offset, 1);call write~init~int(0, #t~string110.base, 3 + #t~string110.offset, 1);call #t~string112.base, #t~string112.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string112.base, #t~string112.offset, 1);call write~init~int(37, #t~string112.base, 1 + #t~string112.offset, 1);call write~init~int(105, #t~string112.base, 2 + #t~string112.offset, 1);call write~init~int(0, #t~string112.base, 3 + #t~string112.offset, 1);call #t~string114.base, #t~string114.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string114.base, #t~string114.offset, 1);call write~init~int(37, #t~string114.base, 1 + #t~string114.offset, 1);call write~init~int(105, #t~string114.base, 2 + #t~string114.offset, 1);call write~init~int(0, #t~string114.base, 3 + #t~string114.offset, 1);call #t~string116.base, #t~string116.offset := #Ultimate.allocOnStack(6);call write~init~int(32, #t~string116.base, #t~string116.offset, 1);call write~init~int(70, #t~string116.base, 1 + #t~string116.offset, 1);call write~init~int(95, #t~string116.base, 2 + #t~string116.offset, 1);call write~init~int(112, #t~string116.base, 3 + #t~string116.offset, 1);call write~init~int(58, #t~string116.base, 4 + #t~string116.offset, 1);call write~init~int(0, #t~string116.base, 5 + #t~string116.offset, 1);call #t~string119.base, #t~string119.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string119.base, #t~string119.offset, 1);call write~init~int(37, #t~string119.base, 1 + #t~string119.offset, 1);call write~init~int(105, #t~string119.base, 2 + #t~string119.offset, 1);call write~init~int(0, #t~string119.base, 3 + #t~string119.offset, 1);call #t~string122.base, #t~string122.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string122.base, #t~string122.offset, 1);call write~init~int(37, #t~string122.base, 1 + #t~string122.offset, 1);call write~init~int(105, #t~string122.base, 2 + #t~string122.offset, 1);call write~init~int(0, #t~string122.base, 3 + #t~string122.offset, 1);call #t~string125.base, #t~string125.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string125.base, #t~string125.offset, 1);call write~init~int(37, #t~string125.base, 1 + #t~string125.offset, 1);call write~init~int(105, #t~string125.base, 2 + #t~string125.offset, 1);call write~init~int(0, #t~string125.base, 3 + #t~string125.offset, 1);call #t~string128.base, #t~string128.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string128.base, #t~string128.offset, 1);call write~init~int(37, #t~string128.base, 1 + #t~string128.offset, 1);call write~init~int(105, #t~string128.base, 2 + #t~string128.offset, 1);call write~init~int(0, #t~string128.base, 3 + #t~string128.offset, 1);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string131.base, #t~string131.offset, 1);call write~init~int(37, #t~string131.base, 1 + #t~string131.offset, 1);call write~init~int(105, #t~string131.base, 2 + #t~string131.offset, 1);call write~init~int(0, #t~string131.base, 3 + #t~string131.offset, 1);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string133.base, #t~string133.offset, 1);call write~init~int(0, #t~string133.base, 1 + #t~string133.offset, 1);call #t~string136.base, #t~string136.offset := #Ultimate.allocOnStack(9);call #t~string157.base, #t~string157.offset := #Ultimate.allocOnStack(30);call #t~string158.base, #t~string158.offset := #Ultimate.allocOnStack(9);call #t~string159.base, #t~string159.offset := #Ultimate.allocOnStack(21);call #t~string160.base, #t~string160.offset := #Ultimate.allocOnStack(30);call #t~string161.base, #t~string161.offset := #Ultimate.allocOnStack(9);call #t~string162.base, #t~string162.offset := #Ultimate.allocOnStack(21);call #t~string166.base, #t~string166.offset := #Ultimate.allocOnStack(30);call #t~string167.base, #t~string167.offset := #Ultimate.allocOnStack(9);call #t~string168.base, #t~string168.offset := #Ultimate.allocOnStack(25);call #t~string169.base, #t~string169.offset := #Ultimate.allocOnStack(30);call #t~string170.base, #t~string170.offset := #Ultimate.allocOnStack(9);call #t~string171.base, #t~string171.offset := #Ultimate.allocOnStack(25);~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;~weight~0 := 0;~maximumWeight~0 := 100;~blocked~0 := 0;~prevDir~0 := 0;~cleanupTimeShifts~0 := 12;~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;~head~0.base, ~head~0.offset := 0, 0; 4261#L-1true havoc main_#res;havoc main_#t~ret27, main_~retValue_acc~7, main_~tmp~9;havoc main_~retValue_acc~7;havoc main_~tmp~9; 3869#L2983true havoc valid_product_#res;havoc valid_product_~retValue_acc~24;havoc valid_product_~retValue_acc~24;valid_product_~retValue_acc~24 := 1;valid_product_#res := valid_product_~retValue_acc~24; 9381#L2991true main_#t~ret27 := valid_product_#res;main_~tmp~9 := main_#t~ret27;havoc main_#t~ret27; 8842#L1277true assume 0 != main_~tmp~9; 6825#L1250true havoc aliceCall_#t~ret16, aliceCall_~tmp~2;havoc aliceCall_~tmp~2;getOrigin_#in~person := 1;havoc getOrigin_#res;havoc getOrigin_~person, getOrigin_~retValue_acc~1;getOrigin_~person := getOrigin_#in~person;havoc getOrigin_~retValue_acc~1; 2377#L95true assume 0 == getOrigin_~person;getOrigin_~retValue_acc~1 := 4;getOrigin_#res := getOrigin_~retValue_acc~1; 10963#L120true aliceCall_#t~ret16 := getOrigin_#res;aliceCall_~tmp~2 := aliceCall_#t~ret16;havoc aliceCall_#t~ret16;initPersonOnFloor_#in~person, initPersonOnFloor_#in~floor := 1, aliceCall_~tmp~2;havoc initPersonOnFloor_~person, initPersonOnFloor_~floor;initPersonOnFloor_~person := initPersonOnFloor_#in~person;initPersonOnFloor_~floor := initPersonOnFloor_#in~floor; 16875#L530true assume 0 == initPersonOnFloor_~floor; 11654#L531true assume 0 == initPersonOnFloor_~person;~personOnFloor_0_0~0 := 1; 14139#L638-1true callOnFloor_#in~floorID := initPersonOnFloor_~floor;havoc callOnFloor_~floorID;callOnFloor_~floorID := callOnFloor_#in~floorID; 12928#L322true assume 0 == callOnFloor_~floorID;~calls_0~0 := 1; 12396#L334-2true havoc angelinaCall_#t~ret17, angelinaCall_~tmp~3;havoc angelinaCall_~tmp~3;getOrigin_#in~person := 2;havoc getOrigin_#res;havoc getOrigin_~person, getOrigin_~retValue_acc~1;getOrigin_~person := getOrigin_#in~person;havoc getOrigin_~retValue_acc~1; 79#L95-1true assume 0 == getOrigin_~person;getOrigin_~retValue_acc~1 := 4;getOrigin_#res := getOrigin_~retValue_acc~1; 14140#L120-1true angelinaCall_#t~ret17 := getOrigin_#res;angelinaCall_~tmp~3 := angelinaCall_#t~ret17;havoc angelinaCall_#t~ret17;initPersonOnFloor_#in~person, initPersonOnFloor_#in~floor := 2, angelinaCall_~tmp~3;havoc initPersonOnFloor_~person, initPersonOnFloor_~floor;initPersonOnFloor_~person := initPersonOnFloor_#in~person;initPersonOnFloor_~floor := initPersonOnFloor_#in~floor; 6862#L530-1true assume 0 == initPersonOnFloor_~floor; 12836#L531-2true assume 0 == initPersonOnFloor_~person;~personOnFloor_0_0~0 := 1; 9934#L638-3true callOnFloor_#in~floorID := initPersonOnFloor_~floor;havoc callOnFloor_~floorID;callOnFloor_~floorID := callOnFloor_#in~floorID; 2865#L322-2true assume 0 == callOnFloor_~floorID;~calls_0~0 := 1; 4265#L334-5true havoc timeShift_#t~ret87, timeShift_~tmp~24;havoc timeShift_~tmp~24;havoc __utac_acc__Specification13_spec__1_#t~ret7;havoc getCurrentHeading_#res;havoc getCurrentHeading_~retValue_acc~12;havoc getCurrentHeading_~retValue_acc~12;getCurrentHeading_~retValue_acc~12 := ~currentHeading~0;getCurrentHeading_#res := getCurrentHeading_~retValue_acc~12; 4488#L1680true __utac_acc__Specification13_spec__1_#t~ret7 := getCurrentHeading_#res;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret7;havoc __utac_acc__Specification13_spec__1_#t~ret7; 17627#L851true havoc areDoorsOpen_#res;havoc areDoorsOpen_~retValue_acc~10;havoc areDoorsOpen_~retValue_acc~10;areDoorsOpen_~retValue_acc~10 := ~doorState~0;areDoorsOpen_#res := areDoorsOpen_~retValue_acc~10; 16866#L1637true timeShift_#t~ret87 := areDoorsOpen_#res;timeShift_~tmp~24 := timeShift_#t~ret87;havoc timeShift_#t~ret87; 2375#L2587true assume 0 != timeShift_~tmp~24; 5359#L2588true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 9380#L2263-11true havoc __utac_acc__Specification13_spec__2_#t~ret8, __utac_acc__Specification13_spec__2_#t~ret9, __utac_acc__Specification13_spec__2_#t~ret10, __utac_acc__Specification13_spec__2_#t~ret11, __utac_acc__Specification13_spec__2_#t~ret12, __utac_acc__Specification13_spec__2_#t~ret13, __utac_acc__Specification13_spec__2_~tmp~0, __utac_acc__Specification13_spec__2_~tmp___0~0, __utac_acc__Specification13_spec__2_~tmp___1~0, __utac_acc__Specification13_spec__2_~tmp___2~0, __utac_acc__Specification13_spec__2_~tmp___3~0, __utac_acc__Specification13_spec__2_~tmp___4~0, __utac_acc__Specification13_spec__2_~__cil_tmp7~0, __utac_acc__Specification13_spec__2_~__cil_tmp8~0;havoc __utac_acc__Specification13_spec__2_~tmp~0;havoc __utac_acc__Specification13_spec__2_~tmp___0~0;havoc __utac_acc__Specification13_spec__2_~tmp___1~0;havoc __utac_acc__Specification13_spec__2_~tmp___2~0;havoc __utac_acc__Specification13_spec__2_~tmp___3~0;havoc __utac_acc__Specification13_spec__2_~tmp___4~0;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0;__utac_acc__Specification13_spec__2_~__cil_tmp7~0 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0 / 3); 5004#L869true assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0; 3583#L870true assume 1 == ~prevDir~0;existInLiftCallsInDirection_#in~d := 0;havoc existInLiftCallsInDirection_#res;havoc existInLiftCallsInDirection_~d, existInLiftCallsInDirection_~retValue_acc~22, existInLiftCallsInDirection_~i~3, existInLiftCallsInDirection_~i___0~0;existInLiftCallsInDirection_~d := existInLiftCallsInDirection_#in~d;havoc existInLiftCallsInDirection_~retValue_acc~22;havoc existInLiftCallsInDirection_~i~3;havoc existInLiftCallsInDirection_~i___0~0; 12185#L2807true assume 1 == existInLiftCallsInDirection_~d;existInLiftCallsInDirection_~i~3 := 0;existInLiftCallsInDirection_~i~3 := 1 + ~currentFloorID~0; 6212#L2811-2true [2021-11-07 07:29:11,818 INFO L793 eck$LassoCheckResult]: Loop: 6212#L2811-2true assume !false; 4836#L2812true assume existInLiftCallsInDirection_~i~3 < 5; 498#L2813true assume !(0 == existInLiftCallsInDirection_~i~3); 6907#L2826true assume !(1 == existInLiftCallsInDirection_~i~3); 7129#L2835true assume !(2 == existInLiftCallsInDirection_~i~3); 3663#L2844true assume !(3 == existInLiftCallsInDirection_~i~3); 9385#L2853true assume !(4 == existInLiftCallsInDirection_~i~3); 957#L2854-1true existInLiftCallsInDirection_~i~3 := 1 + existInLiftCallsInDirection_~i~3; 6212#L2811-2true [2021-11-07 07:29:11,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:11,826 INFO L85 PathProgramCache]: Analyzing trace with hash -552573434, now seen corresponding path program 1 times [2021-11-07 07:29:11,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:11,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164298383] [2021-11-07 07:29:11,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:11,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:12,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:12,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:12,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164298383] [2021-11-07 07:29:12,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164298383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:12,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:12,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:29:12,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291836489] [2021-11-07 07:29:12,351 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 07:29:12,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:12,360 INFO L85 PathProgramCache]: Analyzing trace with hash -614650883, now seen corresponding path program 1 times [2021-11-07 07:29:12,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:12,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311289352] [2021-11-07 07:29:12,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:12,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:29:12,370 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:29:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:29:12,401 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:29:12,471 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:29:12,472 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:29:12,472 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:29:12,473 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:29:12,473 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 07:29:12,473 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:12,473 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:29:12,473 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:29:12,474 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product30.cil.c_Iteration1_Loop [2021-11-07 07:29:12,474 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:29:12,474 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:29:12,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:29:12,576 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:29:12,577 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 07:29:12,580 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:12,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:12,586 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:29:12,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:29:12,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:29:12,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-07 07:29:12,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:12,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:12,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:12,665 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:29:12,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-07 07:29:12,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 07:29:12,674 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:29:12,738 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 07:29:12,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:12,746 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:29:12,746 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:29:12,747 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:29:12,747 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:29:12,747 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 07:29:12,747 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:12,747 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:29:12,747 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:29:12,748 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product30.cil.c_Iteration1_Loop [2021-11-07 07:29:12,748 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:29:12,748 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:29:12,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:29:12,809 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:29:12,815 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 07:29:12,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:12,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:12,817 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:29:12,823 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 [2021-11-07 07:29:12,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:29:12,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:29:12,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-07 07:29:12,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:29:12,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:29:12,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:29:12,839 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:29:12,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:29:12,857 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 07:29:12,885 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-07 07:29:12,885 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 07:29:12,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:12,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:12,900 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:29:12,932 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 07:29:12,932 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 07:29:12,933 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 07:29:12,933 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_existInLiftCallsInDirection_~i~3) = -1*ULTIMATE.start_existInLiftCallsInDirection_~i~3 Supporting invariants [] [2021-11-07 07:29:12,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-07 07:29:12,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:12,970 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 07:29:13,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:13,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:13,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 07:29:13,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:13,370 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 07:29:13,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:13,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:13,649 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 [2021-11-07 07:29:13,687 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17666 states, 17665 states have (on average 1.8940843475799605) internal successors, (33459), 17665 states have internal predecessors, (33459), 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 4.111111111111111) internal successors, (37), 9 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) [2021-11-07 07:29:14,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:24,743 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17666 states, 17665 states have (on average 1.8940843475799605) internal successors, (33459), 17665 states have internal predecessors, (33459), 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 4.111111111111111) internal successors, (37), 9 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) Result 207924 states and 393671 transitions. Complement of second has 18 states. [2021-11-07 07:29:24,746 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 [2021-11-07 07:29:24,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 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) [2021-11-07 07:29:25,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 213580 transitions. [2021-11-07 07:29:25,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 213580 transitions. Stem has 29 letters. Loop has 8 letters. [2021-11-07 07:29:25,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:29:25,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 213580 transitions. Stem has 37 letters. Loop has 8 letters. [2021-11-07 07:29:25,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:29:25,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 213580 transitions. Stem has 29 letters. Loop has 16 letters. [2021-11-07 07:29:25,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:29:25,518 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 207924 states and 393671 transitions. [2021-11-07 07:29:27,262 INFO L131 ngComponentsAnalysis]: Automaton has 66 accepting balls. 28334 [2021-11-07 07:29:28,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 207924 states to 112713 states and 213328 transitions. [2021-11-07 07:29:28,330 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 112683 [2021-11-07 07:29:28,875 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 112684 [2021-11-07 07:29:28,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 112713 states and 213328 transitions. [2021-11-07 07:29:28,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:29:28,879 INFO L681 BuchiCegarLoop]: Abstraction has 112713 states and 213328 transitions. [2021-11-07 07:29:29,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112713 states and 213328 transitions. [2021-11-07 07:29:30,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112713 to 31784. [2021-11-07 07:29:30,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31784 states, 31784 states have (on average 1.8897243896300024) internal successors, (60063), 31783 states have internal predecessors, (60063), 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) [2021-11-07 07:29:30,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31784 states to 31784 states and 60063 transitions. [2021-11-07 07:29:30,350 INFO L704 BuchiCegarLoop]: Abstraction has 31784 states and 60063 transitions. [2021-11-07 07:29:30,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:30,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:29:30,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:29:30,359 INFO L87 Difference]: Start difference. First operand 31784 states and 60063 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-11-07 07:29:31,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:31,763 INFO L93 Difference]: Finished difference Result 45932 states and 86636 transitions. [2021-11-07 07:29:31,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:29:31,765 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45932 states and 86636 transitions. [2021-11-07 07:29:32,168 INFO L131 ngComponentsAnalysis]: Automaton has 78 accepting balls. 15270 [2021-11-07 07:29:32,837 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45932 states to 45919 states and 86623 transitions. [2021-11-07 07:29:32,838 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45900 [2021-11-07 07:29:32,908 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45900 [2021-11-07 07:29:32,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45919 states and 86623 transitions. [2021-11-07 07:29:32,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:29:33,000 INFO L681 BuchiCegarLoop]: Abstraction has 45919 states and 86623 transitions. [2021-11-07 07:29:33,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45919 states and 86623 transitions. [2021-11-07 07:29:33,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45919 to 17676. [2021-11-07 07:29:33,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17676 states, 17676 states have (on average 1.8865127856981216) internal successors, (33346), 17675 states have internal predecessors, (33346), 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) [2021-11-07 07:29:33,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17676 states to 17676 states and 33346 transitions. [2021-11-07 07:29:33,625 INFO L704 BuchiCegarLoop]: Abstraction has 17676 states and 33346 transitions. [2021-11-07 07:29:33,625 INFO L587 BuchiCegarLoop]: Abstraction has 17676 states and 33346 transitions. [2021-11-07 07:29:33,627 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-07 07:29:33,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17676 states and 33346 transitions. [2021-11-07 07:29:33,734 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4023 [2021-11-07 07:29:33,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:29:33,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:29:33,738 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] [2021-11-07 07:29:33,738 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:33,739 INFO L791 eck$LassoCheckResult]: Stem: 315718#ULTIMATE.startENTRY #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~string88.base, #t~string88.offset := #Ultimate.allocOnStack(10);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(4);call write~init~int(91, #t~string90.base, #t~string90.offset, 1);call write~init~int(95, #t~string90.base, 1 + #t~string90.offset, 1);call write~init~int(93, #t~string90.base, 2 + #t~string90.offset, 1);call write~init~int(0, #t~string90.base, 3 + #t~string90.offset, 1);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(4);call write~init~int(91, #t~string92.base, #t~string92.offset, 1);call write~init~int(93, #t~string92.base, 1 + #t~string92.offset, 1);call write~init~int(32, #t~string92.base, 2 + #t~string92.offset, 1);call write~init~int(0, #t~string92.base, 3 + #t~string92.offset, 1);call #t~string94.base, #t~string94.offset := #Ultimate.allocOnStack(5);call write~init~int(32, #t~string94.base, #t~string94.offset, 1);call write~init~int(97, #t~string94.base, 1 + #t~string94.offset, 1);call write~init~int(116, #t~string94.base, 2 + #t~string94.offset, 1);call write~init~int(32, #t~string94.base, 3 + #t~string94.offset, 1);call write~init~int(0, #t~string94.base, 4 + #t~string94.offset, 1);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(3);call write~init~int(37, #t~string96.base, #t~string96.offset, 1);call write~init~int(105, #t~string96.base, 1 + #t~string96.offset, 1);call write~init~int(0, #t~string96.base, 2 + #t~string96.offset, 1);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(10);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(3);call write~init~int(117, #t~string100.base, #t~string100.offset, 1);call write~init~int(112, #t~string100.base, 1 + #t~string100.offset, 1);call write~init~int(0, #t~string100.base, 2 + #t~string100.offset, 1);call #t~string102.base, #t~string102.offset := #Ultimate.allocOnStack(5);call write~init~int(100, #t~string102.base, #t~string102.offset, 1);call write~init~int(111, #t~string102.base, 1 + #t~string102.offset, 1);call write~init~int(119, #t~string102.base, 2 + #t~string102.offset, 1);call write~init~int(110, #t~string102.base, 3 + #t~string102.offset, 1);call write~init~int(0, #t~string102.base, 4 + #t~string102.offset, 1);call #t~string104.base, #t~string104.offset := #Ultimate.allocOnStack(7);call write~init~int(32, #t~string104.base, #t~string104.offset, 1);call write~init~int(73, #t~string104.base, 1 + #t~string104.offset, 1);call write~init~int(76, #t~string104.base, 2 + #t~string104.offset, 1);call write~init~int(95, #t~string104.base, 3 + #t~string104.offset, 1);call write~init~int(112, #t~string104.base, 4 + #t~string104.offset, 1);call write~init~int(58, #t~string104.base, 5 + #t~string104.offset, 1);call write~init~int(0, #t~string104.base, 6 + #t~string104.offset, 1);call #t~string106.base, #t~string106.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string106.base, #t~string106.offset, 1);call write~init~int(37, #t~string106.base, 1 + #t~string106.offset, 1);call write~init~int(105, #t~string106.base, 2 + #t~string106.offset, 1);call write~init~int(0, #t~string106.base, 3 + #t~string106.offset, 1);call #t~string108.base, #t~string108.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string108.base, #t~string108.offset, 1);call write~init~int(37, #t~string108.base, 1 + #t~string108.offset, 1);call write~init~int(105, #t~string108.base, 2 + #t~string108.offset, 1);call write~init~int(0, #t~string108.base, 3 + #t~string108.offset, 1);call #t~string110.base, #t~string110.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string110.base, #t~string110.offset, 1);call write~init~int(37, #t~string110.base, 1 + #t~string110.offset, 1);call write~init~int(105, #t~string110.base, 2 + #t~string110.offset, 1);call write~init~int(0, #t~string110.base, 3 + #t~string110.offset, 1);call #t~string112.base, #t~string112.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string112.base, #t~string112.offset, 1);call write~init~int(37, #t~string112.base, 1 + #t~string112.offset, 1);call write~init~int(105, #t~string112.base, 2 + #t~string112.offset, 1);call write~init~int(0, #t~string112.base, 3 + #t~string112.offset, 1);call #t~string114.base, #t~string114.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string114.base, #t~string114.offset, 1);call write~init~int(37, #t~string114.base, 1 + #t~string114.offset, 1);call write~init~int(105, #t~string114.base, 2 + #t~string114.offset, 1);call write~init~int(0, #t~string114.base, 3 + #t~string114.offset, 1);call #t~string116.base, #t~string116.offset := #Ultimate.allocOnStack(6);call write~init~int(32, #t~string116.base, #t~string116.offset, 1);call write~init~int(70, #t~string116.base, 1 + #t~string116.offset, 1);call write~init~int(95, #t~string116.base, 2 + #t~string116.offset, 1);call write~init~int(112, #t~string116.base, 3 + #t~string116.offset, 1);call write~init~int(58, #t~string116.base, 4 + #t~string116.offset, 1);call write~init~int(0, #t~string116.base, 5 + #t~string116.offset, 1);call #t~string119.base, #t~string119.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string119.base, #t~string119.offset, 1);call write~init~int(37, #t~string119.base, 1 + #t~string119.offset, 1);call write~init~int(105, #t~string119.base, 2 + #t~string119.offset, 1);call write~init~int(0, #t~string119.base, 3 + #t~string119.offset, 1);call #t~string122.base, #t~string122.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string122.base, #t~string122.offset, 1);call write~init~int(37, #t~string122.base, 1 + #t~string122.offset, 1);call write~init~int(105, #t~string122.base, 2 + #t~string122.offset, 1);call write~init~int(0, #t~string122.base, 3 + #t~string122.offset, 1);call #t~string125.base, #t~string125.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string125.base, #t~string125.offset, 1);call write~init~int(37, #t~string125.base, 1 + #t~string125.offset, 1);call write~init~int(105, #t~string125.base, 2 + #t~string125.offset, 1);call write~init~int(0, #t~string125.base, 3 + #t~string125.offset, 1);call #t~string128.base, #t~string128.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string128.base, #t~string128.offset, 1);call write~init~int(37, #t~string128.base, 1 + #t~string128.offset, 1);call write~init~int(105, #t~string128.base, 2 + #t~string128.offset, 1);call write~init~int(0, #t~string128.base, 3 + #t~string128.offset, 1);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string131.base, #t~string131.offset, 1);call write~init~int(37, #t~string131.base, 1 + #t~string131.offset, 1);call write~init~int(105, #t~string131.base, 2 + #t~string131.offset, 1);call write~init~int(0, #t~string131.base, 3 + #t~string131.offset, 1);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string133.base, #t~string133.offset, 1);call write~init~int(0, #t~string133.base, 1 + #t~string133.offset, 1);call #t~string136.base, #t~string136.offset := #Ultimate.allocOnStack(9);call #t~string157.base, #t~string157.offset := #Ultimate.allocOnStack(30);call #t~string158.base, #t~string158.offset := #Ultimate.allocOnStack(9);call #t~string159.base, #t~string159.offset := #Ultimate.allocOnStack(21);call #t~string160.base, #t~string160.offset := #Ultimate.allocOnStack(30);call #t~string161.base, #t~string161.offset := #Ultimate.allocOnStack(9);call #t~string162.base, #t~string162.offset := #Ultimate.allocOnStack(21);call #t~string166.base, #t~string166.offset := #Ultimate.allocOnStack(30);call #t~string167.base, #t~string167.offset := #Ultimate.allocOnStack(9);call #t~string168.base, #t~string168.offset := #Ultimate.allocOnStack(25);call #t~string169.base, #t~string169.offset := #Ultimate.allocOnStack(30);call #t~string170.base, #t~string170.offset := #Ultimate.allocOnStack(9);call #t~string171.base, #t~string171.offset := #Ultimate.allocOnStack(25);~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;~weight~0 := 0;~maximumWeight~0 := 100;~blocked~0 := 0;~prevDir~0 := 0;~cleanupTimeShifts~0 := 12;~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;~head~0.base, ~head~0.offset := 0, 0; 311960#L-1 havoc main_#res;havoc main_#t~ret27, main_~retValue_acc~7, main_~tmp~9;havoc main_~retValue_acc~7;havoc main_~tmp~9; 311357#L2983 havoc valid_product_#res;havoc valid_product_~retValue_acc~24;havoc valid_product_~retValue_acc~24;valid_product_~retValue_acc~24 := 1;valid_product_#res := valid_product_~retValue_acc~24; 311358#L2991 main_#t~ret27 := valid_product_#res;main_~tmp~9 := main_#t~ret27;havoc main_#t~ret27; 317465#L1277 assume 0 != main_~tmp~9; 315436#L1250 havoc aliceCall_#t~ret16, aliceCall_~tmp~2;havoc aliceCall_~tmp~2;getOrigin_#in~person := 1;havoc getOrigin_#res;havoc getOrigin_~person, getOrigin_~retValue_acc~1;getOrigin_~person := getOrigin_#in~person;havoc getOrigin_~retValue_acc~1; 308797#L95 assume !(0 == getOrigin_~person); 305179#L99 assume 1 == getOrigin_~person;getOrigin_~retValue_acc~1 := 3;getOrigin_#res := getOrigin_~retValue_acc~1; 305180#L120 aliceCall_#t~ret16 := getOrigin_#res;aliceCall_~tmp~2 := aliceCall_#t~ret16;havoc aliceCall_#t~ret16;initPersonOnFloor_#in~person, initPersonOnFloor_#in~floor := 1, aliceCall_~tmp~2;havoc initPersonOnFloor_~person, initPersonOnFloor_~floor;initPersonOnFloor_~person := initPersonOnFloor_#in~person;initPersonOnFloor_~floor := initPersonOnFloor_#in~floor; 319018#L530 assume 0 == initPersonOnFloor_~floor; 319478#L531 assume 0 == initPersonOnFloor_~person;~personOnFloor_0_0~0 := 1; 303608#L638-1 callOnFloor_#in~floorID := initPersonOnFloor_~floor;havoc callOnFloor_~floorID;callOnFloor_~floorID := callOnFloor_#in~floorID; 320115#L322 assume 0 == callOnFloor_~floorID;~calls_0~0 := 1; 303835#L334-2 havoc angelinaCall_#t~ret17, angelinaCall_~tmp~3;havoc angelinaCall_~tmp~3;getOrigin_#in~person := 2;havoc getOrigin_#res;havoc getOrigin_~person, getOrigin_~retValue_acc~1;getOrigin_~person := getOrigin_#in~person;havoc getOrigin_~retValue_acc~1; 303690#L95-1 assume !(0 == getOrigin_~person); 303691#L99-1 assume 1 == getOrigin_~person;getOrigin_~retValue_acc~1 := 3;getOrigin_#res := getOrigin_~retValue_acc~1; 304428#L120-1 angelinaCall_#t~ret17 := getOrigin_#res;angelinaCall_~tmp~3 := angelinaCall_#t~ret17;havoc angelinaCall_#t~ret17;initPersonOnFloor_#in~person, initPersonOnFloor_#in~floor := 2, angelinaCall_~tmp~3;havoc initPersonOnFloor_~person, initPersonOnFloor_~floor;initPersonOnFloor_~person := initPersonOnFloor_#in~person;initPersonOnFloor_~floor := initPersonOnFloor_#in~floor; 315482#L530-1 assume 0 == initPersonOnFloor_~floor; 315483#L531-2 assume 0 == initPersonOnFloor_~person;~personOnFloor_0_0~0 := 1; 303966#L638-3 callOnFloor_#in~floorID := initPersonOnFloor_~floor;havoc callOnFloor_~floorID;callOnFloor_~floorID := callOnFloor_#in~floorID; 309660#L322-2 assume 0 == callOnFloor_~floorID;~calls_0~0 := 1; 304503#L334-5 havoc timeShift_#t~ret87, timeShift_~tmp~24;havoc timeShift_~tmp~24;havoc __utac_acc__Specification13_spec__1_#t~ret7;havoc getCurrentHeading_#res;havoc getCurrentHeading_~retValue_acc~12;havoc getCurrentHeading_~retValue_acc~12;getCurrentHeading_~retValue_acc~12 := ~currentHeading~0;getCurrentHeading_#res := getCurrentHeading_~retValue_acc~12; 311967#L1680 __utac_acc__Specification13_spec__1_#t~ret7 := getCurrentHeading_#res;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret7;havoc __utac_acc__Specification13_spec__1_#t~ret7; 312292#L851 havoc areDoorsOpen_#res;havoc areDoorsOpen_~retValue_acc~10;havoc areDoorsOpen_~retValue_acc~10;areDoorsOpen_~retValue_acc~10 := ~doorState~0;areDoorsOpen_#res := areDoorsOpen_~retValue_acc~10; 321107#L1637 timeShift_#t~ret87 := areDoorsOpen_#res;timeShift_~tmp~24 := timeShift_#t~ret87;havoc timeShift_#t~ret87; 308791#L2587 assume 0 != timeShift_~tmp~24; 308793#L2588 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 305727#L2263-11 havoc __utac_acc__Specification13_spec__2_#t~ret8, __utac_acc__Specification13_spec__2_#t~ret9, __utac_acc__Specification13_spec__2_#t~ret10, __utac_acc__Specification13_spec__2_#t~ret11, __utac_acc__Specification13_spec__2_#t~ret12, __utac_acc__Specification13_spec__2_#t~ret13, __utac_acc__Specification13_spec__2_~tmp~0, __utac_acc__Specification13_spec__2_~tmp___0~0, __utac_acc__Specification13_spec__2_~tmp___1~0, __utac_acc__Specification13_spec__2_~tmp___2~0, __utac_acc__Specification13_spec__2_~tmp___3~0, __utac_acc__Specification13_spec__2_~tmp___4~0, __utac_acc__Specification13_spec__2_~__cil_tmp7~0, __utac_acc__Specification13_spec__2_~__cil_tmp8~0;havoc __utac_acc__Specification13_spec__2_~tmp~0;havoc __utac_acc__Specification13_spec__2_~tmp___0~0;havoc __utac_acc__Specification13_spec__2_~tmp___1~0;havoc __utac_acc__Specification13_spec__2_~tmp___2~0;havoc __utac_acc__Specification13_spec__2_~tmp___3~0;havoc __utac_acc__Specification13_spec__2_~tmp___4~0;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0;__utac_acc__Specification13_spec__2_~__cil_tmp7~0 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0 / 3); 313031#L869 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0; 310875#L870 assume !(1 == ~prevDir~0); 310876#L896 assume 0 == ~prevDir~0;existInLiftCallsInDirection_#in~d := 1;havoc existInLiftCallsInDirection_#res;havoc existInLiftCallsInDirection_~d, existInLiftCallsInDirection_~retValue_acc~22, existInLiftCallsInDirection_~i~3, existInLiftCallsInDirection_~i___0~0;existInLiftCallsInDirection_~d := existInLiftCallsInDirection_#in~d;havoc existInLiftCallsInDirection_~retValue_acc~22;havoc existInLiftCallsInDirection_~i~3;havoc existInLiftCallsInDirection_~i___0~0; 320515#L2807-2 assume 1 == existInLiftCallsInDirection_~d;existInLiftCallsInDirection_~i~3 := 0;existInLiftCallsInDirection_~i~3 := 1 + ~currentFloorID~0; 315189#L2811-8 [2021-11-07 07:29:33,739 INFO L793 eck$LassoCheckResult]: Loop: 315189#L2811-8 assume !false; 315190#L2812-2 assume existInLiftCallsInDirection_~i~3 < 5; 315788#L2813-2 assume !(0 == existInLiftCallsInDirection_~i~3); 315790#L2826-2 assume !(1 == existInLiftCallsInDirection_~i~3); 316750#L2835-2 assume !(2 == existInLiftCallsInDirection_~i~3); 312597#L2844-2 assume !(3 == existInLiftCallsInDirection_~i~3); 307320#L2853-2 assume !(4 == existInLiftCallsInDirection_~i~3); 307321#L2854-5 existInLiftCallsInDirection_~i~3 := 1 + existInLiftCallsInDirection_~i~3; 315189#L2811-8 [2021-11-07 07:29:33,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:33,740 INFO L85 PathProgramCache]: Analyzing trace with hash -497773081, now seen corresponding path program 1 times [2021-11-07 07:29:33,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:33,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186810338] [2021-11-07 07:29:33,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:33,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:33,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:33,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:33,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186810338] [2021-11-07 07:29:33,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186810338] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:33,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:33,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:29:33,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681989160] [2021-11-07 07:29:33,946 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 07:29:33,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:33,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1197309315, now seen corresponding path program 1 times [2021-11-07 07:29:33,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:33,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602888868] [2021-11-07 07:29:33,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:33,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:29:33,962 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:29:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:29:33,986 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:29:34,052 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:29:34,052 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:29:34,053 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:29:34,053 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:29:34,054 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 07:29:34,054 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:34,054 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:29:34,054 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:29:34,054 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product30.cil.c_Iteration2_Loop [2021-11-07 07:29:34,055 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:29:34,055 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:29:34,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:29:34,133 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:29:34,133 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 07:29:34,133 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:34,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:34,135 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:29:34,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:29:34,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:29:34,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-07 07:29:34,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:34,220 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:34,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:34,222 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:29:34,229 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 07:29:34,229 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:29:34,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-07 07:29:34,299 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 07:29:34,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:34,307 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:29:34,307 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:29:34,307 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:29:34,308 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:29:34,308 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 07:29:34,308 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:34,308 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:29:34,308 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:29:34,308 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product30.cil.c_Iteration2_Loop [2021-11-07 07:29:34,308 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:29:34,309 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:29:34,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:29:34,386 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:29:34,387 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 07:29:34,387 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:34,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:34,389 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:29:34,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-07 07:29:34,395 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 [2021-11-07 07:29:34,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:29:34,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:29:34,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:29:34,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:29:34,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:29:34,409 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:29:34,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:29:34,433 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 07:29:34,439 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 07:29:34,440 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-07 07:29:34,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:34,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:34,441 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:29:34,444 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 07:29:34,444 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 07:29:34,444 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 07:29:34,445 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_existInLiftCallsInDirection_~i~3) = -1*ULTIMATE.start_existInLiftCallsInDirection_~i~3 Supporting invariants [] [2021-11-07 07:29:34,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-07 07:29:34,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:34,494 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 07:29:34,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:34,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 07:29:34,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:34,845 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 07:29:34,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:35,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:35,143 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 [2021-11-07 07:29:35,143 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17676 states and 33346 transitions. cyclomatic complexity: 15704 Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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) [2021-11-07 07:29:44,915 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17676 states and 33346 transitions. cyclomatic complexity: 15704. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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 193640 states and 366432 transitions. Complement of second has 17 states. [2021-11-07 07:29:44,915 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 [2021-11-07 07:29:44,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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) [2021-11-07 07:29:45,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 186515 transitions. [2021-11-07 07:29:45,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 186515 transitions. Stem has 32 letters. Loop has 8 letters. [2021-11-07 07:29:45,148 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:29:45,148 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 186515 transitions. Stem has 40 letters. Loop has 8 letters. [2021-11-07 07:29:45,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:29:45,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 186515 transitions. Stem has 32 letters. Loop has 16 letters. [2021-11-07 07:29:45,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:29:45,150 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 193640 states and 366432 transitions. [2021-11-07 07:29:46,512 INFO L131 ngComponentsAnalysis]: Automaton has 66 accepting balls. 28336 [2021-11-07 07:29:47,066 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 193640 states to 112728 states and 213244 transitions. [2021-11-07 07:29:47,066 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 112679 [2021-11-07 07:29:47,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 112680 [2021-11-07 07:29:47,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 112728 states and 213244 transitions. [2021-11-07 07:29:47,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:29:47,244 INFO L681 BuchiCegarLoop]: Abstraction has 112728 states and 213244 transitions. [2021-11-07 07:29:47,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112728 states and 213244 transitions. [2021-11-07 07:29:48,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112728 to 17700. [2021-11-07 07:29:48,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17700 states, 17700 states have (on average 1.8861016949152543) internal successors, (33384), 17699 states have internal predecessors, (33384), 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) [2021-11-07 07:29:48,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17700 states to 17700 states and 33384 transitions. [2021-11-07 07:29:48,652 INFO L704 BuchiCegarLoop]: Abstraction has 17700 states and 33384 transitions. [2021-11-07 07:29:48,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:48,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:29:48,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:29:48,654 INFO L87 Difference]: Start difference. First operand 17700 states and 33384 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2021-11-07 07:29:49,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:49,952 INFO L93 Difference]: Finished difference Result 52885 states and 99724 transitions. [2021-11-07 07:29:49,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:29:49,953 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52885 states and 99724 transitions. [2021-11-07 07:29:50,804 INFO L131 ngComponentsAnalysis]: Automaton has 99 accepting balls. 12081 [2021-11-07 07:29:51,091 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52885 states to 52885 states and 99724 transitions. [2021-11-07 07:29:51,092 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52771 [2021-11-07 07:29:51,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52771 [2021-11-07 07:29:51,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52885 states and 99724 transitions. [2021-11-07 07:29:51,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:29:51,151 INFO L681 BuchiCegarLoop]: Abstraction has 52885 states and 99724 transitions. [2021-11-07 07:29:51,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52885 states and 99724 transitions. [2021-11-07 07:29:51,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52885 to 17715. [2021-11-07 07:29:51,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17715 states, 17715 states have (on average 1.8853513971210838) internal successors, (33399), 17714 states have internal predecessors, (33399), 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) [2021-11-07 07:29:51,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17715 states to 17715 states and 33399 transitions. [2021-11-07 07:29:51,644 INFO L704 BuchiCegarLoop]: Abstraction has 17715 states and 33399 transitions. [2021-11-07 07:29:51,645 INFO L587 BuchiCegarLoop]: Abstraction has 17715 states and 33399 transitions. [2021-11-07 07:29:51,645 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-07 07:29:51,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17715 states and 33399 transitions. [2021-11-07 07:29:51,726 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4027 [2021-11-07 07:29:51,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:29:51,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:29:51,730 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] [2021-11-07 07:29:51,730 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:51,731 INFO L791 eck$LassoCheckResult]: Stem: 597790#ULTIMATE.startENTRY #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~string88.base, #t~string88.offset := #Ultimate.allocOnStack(10);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(4);call write~init~int(91, #t~string90.base, #t~string90.offset, 1);call write~init~int(95, #t~string90.base, 1 + #t~string90.offset, 1);call write~init~int(93, #t~string90.base, 2 + #t~string90.offset, 1);call write~init~int(0, #t~string90.base, 3 + #t~string90.offset, 1);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(4);call write~init~int(91, #t~string92.base, #t~string92.offset, 1);call write~init~int(93, #t~string92.base, 1 + #t~string92.offset, 1);call write~init~int(32, #t~string92.base, 2 + #t~string92.offset, 1);call write~init~int(0, #t~string92.base, 3 + #t~string92.offset, 1);call #t~string94.base, #t~string94.offset := #Ultimate.allocOnStack(5);call write~init~int(32, #t~string94.base, #t~string94.offset, 1);call write~init~int(97, #t~string94.base, 1 + #t~string94.offset, 1);call write~init~int(116, #t~string94.base, 2 + #t~string94.offset, 1);call write~init~int(32, #t~string94.base, 3 + #t~string94.offset, 1);call write~init~int(0, #t~string94.base, 4 + #t~string94.offset, 1);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(3);call write~init~int(37, #t~string96.base, #t~string96.offset, 1);call write~init~int(105, #t~string96.base, 1 + #t~string96.offset, 1);call write~init~int(0, #t~string96.base, 2 + #t~string96.offset, 1);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(10);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(3);call write~init~int(117, #t~string100.base, #t~string100.offset, 1);call write~init~int(112, #t~string100.base, 1 + #t~string100.offset, 1);call write~init~int(0, #t~string100.base, 2 + #t~string100.offset, 1);call #t~string102.base, #t~string102.offset := #Ultimate.allocOnStack(5);call write~init~int(100, #t~string102.base, #t~string102.offset, 1);call write~init~int(111, #t~string102.base, 1 + #t~string102.offset, 1);call write~init~int(119, #t~string102.base, 2 + #t~string102.offset, 1);call write~init~int(110, #t~string102.base, 3 + #t~string102.offset, 1);call write~init~int(0, #t~string102.base, 4 + #t~string102.offset, 1);call #t~string104.base, #t~string104.offset := #Ultimate.allocOnStack(7);call write~init~int(32, #t~string104.base, #t~string104.offset, 1);call write~init~int(73, #t~string104.base, 1 + #t~string104.offset, 1);call write~init~int(76, #t~string104.base, 2 + #t~string104.offset, 1);call write~init~int(95, #t~string104.base, 3 + #t~string104.offset, 1);call write~init~int(112, #t~string104.base, 4 + #t~string104.offset, 1);call write~init~int(58, #t~string104.base, 5 + #t~string104.offset, 1);call write~init~int(0, #t~string104.base, 6 + #t~string104.offset, 1);call #t~string106.base, #t~string106.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string106.base, #t~string106.offset, 1);call write~init~int(37, #t~string106.base, 1 + #t~string106.offset, 1);call write~init~int(105, #t~string106.base, 2 + #t~string106.offset, 1);call write~init~int(0, #t~string106.base, 3 + #t~string106.offset, 1);call #t~string108.base, #t~string108.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string108.base, #t~string108.offset, 1);call write~init~int(37, #t~string108.base, 1 + #t~string108.offset, 1);call write~init~int(105, #t~string108.base, 2 + #t~string108.offset, 1);call write~init~int(0, #t~string108.base, 3 + #t~string108.offset, 1);call #t~string110.base, #t~string110.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string110.base, #t~string110.offset, 1);call write~init~int(37, #t~string110.base, 1 + #t~string110.offset, 1);call write~init~int(105, #t~string110.base, 2 + #t~string110.offset, 1);call write~init~int(0, #t~string110.base, 3 + #t~string110.offset, 1);call #t~string112.base, #t~string112.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string112.base, #t~string112.offset, 1);call write~init~int(37, #t~string112.base, 1 + #t~string112.offset, 1);call write~init~int(105, #t~string112.base, 2 + #t~string112.offset, 1);call write~init~int(0, #t~string112.base, 3 + #t~string112.offset, 1);call #t~string114.base, #t~string114.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string114.base, #t~string114.offset, 1);call write~init~int(37, #t~string114.base, 1 + #t~string114.offset, 1);call write~init~int(105, #t~string114.base, 2 + #t~string114.offset, 1);call write~init~int(0, #t~string114.base, 3 + #t~string114.offset, 1);call #t~string116.base, #t~string116.offset := #Ultimate.allocOnStack(6);call write~init~int(32, #t~string116.base, #t~string116.offset, 1);call write~init~int(70, #t~string116.base, 1 + #t~string116.offset, 1);call write~init~int(95, #t~string116.base, 2 + #t~string116.offset, 1);call write~init~int(112, #t~string116.base, 3 + #t~string116.offset, 1);call write~init~int(58, #t~string116.base, 4 + #t~string116.offset, 1);call write~init~int(0, #t~string116.base, 5 + #t~string116.offset, 1);call #t~string119.base, #t~string119.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string119.base, #t~string119.offset, 1);call write~init~int(37, #t~string119.base, 1 + #t~string119.offset, 1);call write~init~int(105, #t~string119.base, 2 + #t~string119.offset, 1);call write~init~int(0, #t~string119.base, 3 + #t~string119.offset, 1);call #t~string122.base, #t~string122.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string122.base, #t~string122.offset, 1);call write~init~int(37, #t~string122.base, 1 + #t~string122.offset, 1);call write~init~int(105, #t~string122.base, 2 + #t~string122.offset, 1);call write~init~int(0, #t~string122.base, 3 + #t~string122.offset, 1);call #t~string125.base, #t~string125.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string125.base, #t~string125.offset, 1);call write~init~int(37, #t~string125.base, 1 + #t~string125.offset, 1);call write~init~int(105, #t~string125.base, 2 + #t~string125.offset, 1);call write~init~int(0, #t~string125.base, 3 + #t~string125.offset, 1);call #t~string128.base, #t~string128.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string128.base, #t~string128.offset, 1);call write~init~int(37, #t~string128.base, 1 + #t~string128.offset, 1);call write~init~int(105, #t~string128.base, 2 + #t~string128.offset, 1);call write~init~int(0, #t~string128.base, 3 + #t~string128.offset, 1);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(4);call write~init~int(32, #t~string131.base, #t~string131.offset, 1);call write~init~int(37, #t~string131.base, 1 + #t~string131.offset, 1);call write~init~int(105, #t~string131.base, 2 + #t~string131.offset, 1);call write~init~int(0, #t~string131.base, 3 + #t~string131.offset, 1);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string133.base, #t~string133.offset, 1);call write~init~int(0, #t~string133.base, 1 + #t~string133.offset, 1);call #t~string136.base, #t~string136.offset := #Ultimate.allocOnStack(9);call #t~string157.base, #t~string157.offset := #Ultimate.allocOnStack(30);call #t~string158.base, #t~string158.offset := #Ultimate.allocOnStack(9);call #t~string159.base, #t~string159.offset := #Ultimate.allocOnStack(21);call #t~string160.base, #t~string160.offset := #Ultimate.allocOnStack(30);call #t~string161.base, #t~string161.offset := #Ultimate.allocOnStack(9);call #t~string162.base, #t~string162.offset := #Ultimate.allocOnStack(21);call #t~string166.base, #t~string166.offset := #Ultimate.allocOnStack(30);call #t~string167.base, #t~string167.offset := #Ultimate.allocOnStack(9);call #t~string168.base, #t~string168.offset := #Ultimate.allocOnStack(25);call #t~string169.base, #t~string169.offset := #Ultimate.allocOnStack(30);call #t~string170.base, #t~string170.offset := #Ultimate.allocOnStack(9);call #t~string171.base, #t~string171.offset := #Ultimate.allocOnStack(25);~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;~weight~0 := 0;~maximumWeight~0 := 100;~blocked~0 := 0;~prevDir~0 := 0;~cleanupTimeShifts~0 := 12;~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;~head~0.base, ~head~0.offset := 0, 0; 594028#L-1 havoc main_#res;havoc main_#t~ret27, main_~retValue_acc~7, main_~tmp~9;havoc main_~retValue_acc~7;havoc main_~tmp~9; 593425#L2983 havoc valid_product_#res;havoc valid_product_~retValue_acc~24;havoc valid_product_~retValue_acc~24;valid_product_~retValue_acc~24 := 1;valid_product_#res := valid_product_~retValue_acc~24; 593426#L2991 main_#t~ret27 := valid_product_#res;main_~tmp~9 := main_#t~ret27;havoc main_#t~ret27; 599543#L1277 assume 0 != main_~tmp~9; 597508#L1250 havoc aliceCall_#t~ret16, aliceCall_~tmp~2;havoc aliceCall_~tmp~2;getOrigin_#in~person := 1;havoc getOrigin_#res;havoc getOrigin_~person, getOrigin_~retValue_acc~1;getOrigin_~person := getOrigin_#in~person;havoc getOrigin_~retValue_acc~1; 590865#L95 assume !(0 == getOrigin_~person); 587240#L99 assume !(1 == getOrigin_~person); 587242#L103 assume 2 == getOrigin_~person;getOrigin_~retValue_acc~1 := 2;getOrigin_#res := getOrigin_~retValue_acc~1; 590551#L120 aliceCall_#t~ret16 := getOrigin_#res;aliceCall_~tmp~2 := aliceCall_#t~ret16;havoc aliceCall_#t~ret16;initPersonOnFloor_#in~person, initPersonOnFloor_#in~floor := 1, aliceCall_~tmp~2;havoc initPersonOnFloor_~person, initPersonOnFloor_~floor;initPersonOnFloor_~person := initPersonOnFloor_#in~person;initPersonOnFloor_~floor := initPersonOnFloor_#in~floor; 601098#L530 assume 0 == initPersonOnFloor_~floor; 601557#L531 assume 0 == initPersonOnFloor_~person;~personOnFloor_0_0~0 := 1; 585675#L638-1 callOnFloor_#in~floorID := initPersonOnFloor_~floor;havoc callOnFloor_~floorID;callOnFloor_~floorID := callOnFloor_#in~floorID; 602196#L322 assume 0 == callOnFloor_~floorID;~calls_0~0 := 1; 585902#L334-2 havoc angelinaCall_#t~ret17, angelinaCall_~tmp~3;havoc angelinaCall_~tmp~3;getOrigin_#in~person := 2;havoc getOrigin_#res;havoc getOrigin_~person, getOrigin_~retValue_acc~1;getOrigin_~person := getOrigin_#in~person;havoc getOrigin_~retValue_acc~1; 585751#L95-1 assume !(0 == getOrigin_~person); 585752#L99-1 assume !(1 == getOrigin_~person); 597867#L103-1 assume 2 == getOrigin_~person;getOrigin_~retValue_acc~1 := 2;getOrigin_#res := getOrigin_~retValue_acc~1; 586494#L120-1 angelinaCall_#t~ret17 := getOrigin_#res;angelinaCall_~tmp~3 := angelinaCall_#t~ret17;havoc angelinaCall_#t~ret17;initPersonOnFloor_#in~person, initPersonOnFloor_#in~floor := 2, angelinaCall_~tmp~3;havoc initPersonOnFloor_~person, initPersonOnFloor_~floor;initPersonOnFloor_~person := initPersonOnFloor_#in~person;initPersonOnFloor_~floor := initPersonOnFloor_#in~floor; 597553#L530-1 assume 0 == initPersonOnFloor_~floor; 597554#L531-2 assume 0 == initPersonOnFloor_~person;~personOnFloor_0_0~0 := 1; 586033#L638-3 callOnFloor_#in~floorID := initPersonOnFloor_~floor;havoc callOnFloor_~floorID;callOnFloor_~floorID := callOnFloor_#in~floorID; 591728#L322-2 assume 0 == callOnFloor_~floorID;~calls_0~0 := 1; 586569#L334-5 havoc timeShift_#t~ret87, timeShift_~tmp~24;havoc timeShift_~tmp~24;havoc __utac_acc__Specification13_spec__1_#t~ret7;havoc getCurrentHeading_#res;havoc getCurrentHeading_~retValue_acc~12;havoc getCurrentHeading_~retValue_acc~12;getCurrentHeading_~retValue_acc~12 := ~currentHeading~0;getCurrentHeading_#res := getCurrentHeading_~retValue_acc~12; 594035#L1680 __utac_acc__Specification13_spec__1_#t~ret7 := getCurrentHeading_#res;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret7;havoc __utac_acc__Specification13_spec__1_#t~ret7; 594360#L851 havoc areDoorsOpen_#res;havoc areDoorsOpen_~retValue_acc~10;havoc areDoorsOpen_~retValue_acc~10;areDoorsOpen_~retValue_acc~10 := ~doorState~0;areDoorsOpen_#res := areDoorsOpen_~retValue_acc~10; 603196#L1637 timeShift_#t~ret87 := areDoorsOpen_#res;timeShift_~tmp~24 := timeShift_#t~ret87;havoc timeShift_#t~ret87; 590859#L2587 assume 0 != timeShift_~tmp~24; 590861#L2588 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 587789#L2263-11 havoc __utac_acc__Specification13_spec__2_#t~ret8, __utac_acc__Specification13_spec__2_#t~ret9, __utac_acc__Specification13_spec__2_#t~ret10, __utac_acc__Specification13_spec__2_#t~ret11, __utac_acc__Specification13_spec__2_#t~ret12, __utac_acc__Specification13_spec__2_#t~ret13, __utac_acc__Specification13_spec__2_~tmp~0, __utac_acc__Specification13_spec__2_~tmp___0~0, __utac_acc__Specification13_spec__2_~tmp___1~0, __utac_acc__Specification13_spec__2_~tmp___2~0, __utac_acc__Specification13_spec__2_~tmp___3~0, __utac_acc__Specification13_spec__2_~tmp___4~0, __utac_acc__Specification13_spec__2_~__cil_tmp7~0, __utac_acc__Specification13_spec__2_~__cil_tmp8~0;havoc __utac_acc__Specification13_spec__2_~tmp~0;havoc __utac_acc__Specification13_spec__2_~tmp___0~0;havoc __utac_acc__Specification13_spec__2_~tmp___1~0;havoc __utac_acc__Specification13_spec__2_~tmp___2~0;havoc __utac_acc__Specification13_spec__2_~tmp___3~0;havoc __utac_acc__Specification13_spec__2_~tmp___4~0;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0;__utac_acc__Specification13_spec__2_~__cil_tmp7~0 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0 / 3); 595101#L869 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0; 592942#L870 assume 1 == ~prevDir~0;existInLiftCallsInDirection_#in~d := 0;havoc existInLiftCallsInDirection_#res;havoc existInLiftCallsInDirection_~d, existInLiftCallsInDirection_~retValue_acc~22, existInLiftCallsInDirection_~i~3, existInLiftCallsInDirection_~i___0~0;existInLiftCallsInDirection_~d := existInLiftCallsInDirection_#in~d;havoc existInLiftCallsInDirection_~retValue_acc~22;havoc existInLiftCallsInDirection_~i~3;havoc existInLiftCallsInDirection_~i___0~0; 592944#L2807 assume 1 == existInLiftCallsInDirection_~d;existInLiftCallsInDirection_~i~3 := 0;existInLiftCallsInDirection_~i~3 := 1 + ~currentFloorID~0; 601827#L2811-2 assume !false; 594869#L2812 [2021-11-07 07:29:51,731 INFO L793 eck$LassoCheckResult]: Loop: 594869#L2812 assume existInLiftCallsInDirection_~i~3 < 5; 586835#L2813 assume 0 == existInLiftCallsInDirection_~i~3; 586600#L2819 assume !(0 != ~floorButtons_0~0); 586601#L2826 assume !(1 == existInLiftCallsInDirection_~i~3); 590082#L2835 assume !(2 == existInLiftCallsInDirection_~i~3); 588721#L2844 assume !(3 == existInLiftCallsInDirection_~i~3); 595027#L2853 assume !(4 == existInLiftCallsInDirection_~i~3); 587922#L2854-1 existInLiftCallsInDirection_~i~3 := 1 + existInLiftCallsInDirection_~i~3; 587923#L2811-2 assume !false; 594869#L2812 [2021-11-07 07:29:51,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:51,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1099147893, now seen corresponding path program 1 times [2021-11-07 07:29:51,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:51,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212017028] [2021-11-07 07:29:51,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:51,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:51,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:51,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:51,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212017028] [2021-11-07 07:29:51,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212017028] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:51,843 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:51,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:29:51,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543600246] [2021-11-07 07:29:51,844 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 07:29:51,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:51,845 INFO L85 PathProgramCache]: Analyzing trace with hash -422254790, now seen corresponding path program 1 times [2021-11-07 07:29:51,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:51,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136988606] [2021-11-07 07:29:51,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:51,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:29:51,856 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:29:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:29:51,867 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:29:51,902 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:29:51,902 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:29:51,905 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:29:51,905 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:29:51,905 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 07:29:51,906 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:51,906 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:29:51,906 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:29:51,906 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product30.cil.c_Iteration3_Loop [2021-11-07 07:29:51,906 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:29:51,907 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:29:51,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:29:51,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:29:51,954 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:29:51,954 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 07:29:51,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:51,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:51,956 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:29:51,959 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:29:51,959 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:29:51,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-07 07:29:51,986 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:29:51,986 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~floorButtons_0~0=0} Honda state: {~floorButtons_0~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:29:52,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:52,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:52,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:52,029 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:29:52,040 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:29:52,040 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:29:52,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-07 07:29:52,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-11-07 07:29:52,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:52,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:52,134 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:29:52,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-07 07:29:52,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 07:29:52,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:29:52,178 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 07:29:52,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:52,234 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:29:52,234 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:29:52,234 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:29:52,234 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:29:52,234 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 07:29:52,235 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:52,235 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:29:52,235 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:29:52,235 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product30.cil.c_Iteration3_Loop [2021-11-07 07:29:52,235 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:29:52,235 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:29:52,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:29:52,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:29:52,280 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:29:52,280 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 07:29:52,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:52,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:52,282 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:29:52,289 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 [2021-11-07 07:29:52,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:29:52,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:29:52,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:29:52,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:29:52,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:29:52,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:29:52,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:29:52,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-07 07:29:52,317 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:29:52,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:52,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:52,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:52,365 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:29:52,372 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 [2021-11-07 07:29:52,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:29:52,383 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:29:52,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:29:52,383 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:29:52,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:29:52,386 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:29:52,386 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:29:52,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-07 07:29:52,397 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 07:29:52,404 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 07:29:52,404 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 07:29:52,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:29:52,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:52,406 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:29:52,412 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 07:29:52,412 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 07:29:52,413 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 07:29:52,413 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_existInLiftCallsInDirection_~i~3) = -2*ULTIMATE.start_existInLiftCallsInDirection_~i~3 + 1 Supporting invariants [] [2021-11-07 07:29:52,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-07 07:29:52,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-11-07 07:29:52,457 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 07:29:52,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:52,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 07:29:52,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:52,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 07:29:52,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:52,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:52,956 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 [2021-11-07 07:29:52,957 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17715 states and 33399 transitions. cyclomatic complexity: 15719 Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:53,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca81d574-3e70-45a5-bd98-f0a053f84dec/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0