./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec13_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec13_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro --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 f89a8ce65f650dd979d04d2db9dc53ba483e2a2b64be3f70ae15b036e4b11b5a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:34:51,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:34:51,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:34:51,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:34:51,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:34:51,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:34:51,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:34:51,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:34:51,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:34:51,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:34:51,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:34:51,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:34:51,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:34:51,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:34:51,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:34:51,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:34:51,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:34:51,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:34:51,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:34:51,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:34:51,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:34:51,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:34:51,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:34:51,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:34:51,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:34:51,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:34:51,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:34:51,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:34:51,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:34:51,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:34:51,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:34:51,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:34:51,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:34:51,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:34:51,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:34:51,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:34:51,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:34:51,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:34:51,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:34:51,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:34:51,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:34:51,924 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 20:34:51,961 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:34:51,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:34:51,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:34:51,962 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:34:51,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:34:51,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:34:51,964 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:34:51,964 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 20:34:51,964 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 20:34:51,964 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 20:34:51,966 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 20:34:51,966 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 20:34:51,966 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 20:34:51,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:34:51,966 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:34:51,967 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:34:51,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:34:51,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:34:51,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:34:51,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 20:34:51,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 20:34:51,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 20:34:51,968 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:34:51,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:34:51,968 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 20:34:51,969 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:34:51,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 20:34:51,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:34:51,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:34:51,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:34:51,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:34:51,971 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 20:34:51,972 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_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f89a8ce65f650dd979d04d2db9dc53ba483e2a2b64be3f70ae15b036e4b11b5a [2022-11-18 20:34:52,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:34:52,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:34:52,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:34:52,283 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:34:52,284 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:34:52,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/elevator_spec13_product22.cil.c [2022-11-18 20:34:52,364 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/data/8b7d9a6cd/d6cfe87cac3946039713d085dd9bcc8a/FLAGe8a7d2a3e [2022-11-18 20:34:53,125 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:34:53,127 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/sv-benchmarks/c/product-lines/elevator_spec13_product22.cil.c [2022-11-18 20:34:53,155 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/data/8b7d9a6cd/d6cfe87cac3946039713d085dd9bcc8a/FLAGe8a7d2a3e [2022-11-18 20:34:53,308 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/data/8b7d9a6cd/d6cfe87cac3946039713d085dd9bcc8a [2022-11-18 20:34:53,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:34:53,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:34:53,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:34:53,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:34:53,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:34:53,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:53" (1/1) ... [2022-11-18 20:34:53,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f7cc97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:53, skipping insertion in model container [2022-11-18 20:34:53,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:53" (1/1) ... [2022-11-18 20:34:53,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:34:53,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:34:53,629 WARN L234 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_df258571-57ab-4227-a1af-43e45d5a48b0/sv-benchmarks/c/product-lines/elevator_spec13_product22.cil.c[1811,1824] [2022-11-18 20:34:53,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:34:54,008 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:34:54,027 WARN L234 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_df258571-57ab-4227-a1af-43e45d5a48b0/sv-benchmarks/c/product-lines/elevator_spec13_product22.cil.c[1811,1824] [2022-11-18 20:34:54,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:34:54,209 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:34:54,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:54 WrapperNode [2022-11-18 20:34:54,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:34:54,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:34:54,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:34:54,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:34:54,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:54" (1/1) ... [2022-11-18 20:34:54,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:54" (1/1) ... [2022-11-18 20:34:55,004 INFO L138 Inliner]: procedures = 92, calls = 344, calls flagged for inlining = 196, calls inlined = 1755, statements flattened = 63923 [2022-11-18 20:34:55,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:34:55,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:34:55,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:34:55,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:34:55,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:54" (1/1) ... [2022-11-18 20:34:55,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:54" (1/1) ... [2022-11-18 20:34:55,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:54" (1/1) ... [2022-11-18 20:34:55,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:54" (1/1) ... [2022-11-18 20:34:55,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:54" (1/1) ... [2022-11-18 20:34:56,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:54" (1/1) ... [2022-11-18 20:34:56,326 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:54" (1/1) ... [2022-11-18 20:34:56,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:54" (1/1) ... [2022-11-18 20:34:56,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:34:56,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:34:56,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:34:56,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:34:56,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:54" (1/1) ... [2022-11-18 20:34:56,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:34:56,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:34:56,705 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:34:56,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 20:34:56,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:34:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:34:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:34:56,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:34:57,105 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:34:57,107 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:35:20,955 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:35:21,066 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:35:21,067 INFO L300 CfgBuilder]: Removed 61 assume(true) statements. [2022-11-18 20:35:21,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:21 BoogieIcfgContainer [2022-11-18 20:35:21,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:35:21,086 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 20:35:21,086 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 20:35:21,090 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 20:35:21,091 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:35:21,092 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:34:53" (1/3) ... [2022-11-18 20:35:21,093 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e7c5b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:35:21, skipping insertion in model container [2022-11-18 20:35:21,093 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:35:21,093 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:54" (2/3) ... [2022-11-18 20:35:21,094 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e7c5b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:35:21, skipping insertion in model container [2022-11-18 20:35:21,094 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:35:21,094 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:21" (3/3) ... [2022-11-18 20:35:21,095 INFO L332 chiAutomizerObserver]: Analyzing ICFG elevator_spec13_product22.cil.c [2022-11-18 20:35:21,566 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 20:35:21,567 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 20:35:21,567 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 20:35:21,567 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 20:35:21,567 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 20:35:21,567 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 20:35:21,567 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 20:35:21,568 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 20:35:21,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17392 states, 17391 states have (on average 1.8840204703582313) internal successors, (32765), 17391 states have internal predecessors, (32765), 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) [2022-11-18 20:35:21,952 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3964 [2022-11-18 20:35:21,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:35:21,953 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:35:21,962 INFO L148 hiAutomatonCegarLoop]: 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] [2022-11-18 20:35:21,962 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:21,962 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 20:35:22,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17392 states, 17391 states have (on average 1.8840204703582313) internal successors, (32765), 17391 states have internal predecessors, (32765), 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) [2022-11-18 20:35:22,210 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3964 [2022-11-18 20:35:22,211 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:35:22,211 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:35:22,213 INFO L148 hiAutomatonCegarLoop]: 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] [2022-11-18 20:35:22,213 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:22,220 INFO L748 eck$LassoCheckResult]: Stem: 6960#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(10, 16);call #Ultimate.allocInit(4, 17);call write~init~int(91, 17, 0, 1);call write~init~int(95, 17, 1, 1);call write~init~int(93, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(4, 18);call write~init~int(91, 18, 0, 1);call write~init~int(93, 18, 1, 1);call write~init~int(32, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(5, 19);call write~init~int(32, 19, 0, 1);call write~init~int(97, 19, 1, 1);call write~init~int(116, 19, 2, 1);call write~init~int(32, 19, 3, 1);call write~init~int(0, 19, 4, 1);call #Ultimate.allocInit(3, 20);call write~init~int(37, 20, 0, 1);call write~init~int(105, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(3, 22);call write~init~int(117, 22, 0, 1);call write~init~int(112, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(5, 23);call write~init~int(100, 23, 0, 1);call write~init~int(111, 23, 1, 1);call write~init~int(119, 23, 2, 1);call write~init~int(110, 23, 3, 1);call write~init~int(0, 23, 4, 1);call #Ultimate.allocInit(7, 24);call write~init~int(32, 24, 0, 1);call write~init~int(73, 24, 1, 1);call write~init~int(76, 24, 2, 1);call write~init~int(95, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(4, 25);call write~init~int(32, 25, 0, 1);call write~init~int(37, 25, 1, 1);call write~init~int(105, 25, 2, 1);call write~init~int(0, 25, 3, 1);call #Ultimate.allocInit(4, 26);call write~init~int(32, 26, 0, 1);call write~init~int(37, 26, 1, 1);call write~init~int(105, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(4, 27);call write~init~int(32, 27, 0, 1);call write~init~int(37, 27, 1, 1);call write~init~int(105, 27, 2, 1);call write~init~int(0, 27, 3, 1);call #Ultimate.allocInit(4, 28);call write~init~int(32, 28, 0, 1);call write~init~int(37, 28, 1, 1);call write~init~int(105, 28, 2, 1);call write~init~int(0, 28, 3, 1);call #Ultimate.allocInit(4, 29);call write~init~int(32, 29, 0, 1);call write~init~int(37, 29, 1, 1);call write~init~int(105, 29, 2, 1);call write~init~int(0, 29, 3, 1);call #Ultimate.allocInit(6, 30);call write~init~int(32, 30, 0, 1);call write~init~int(70, 30, 1, 1);call write~init~int(95, 30, 2, 1);call write~init~int(112, 30, 3, 1);call write~init~int(58, 30, 4, 1);call write~init~int(0, 30, 5, 1);call #Ultimate.allocInit(4, 31);call write~init~int(32, 31, 0, 1);call write~init~int(37, 31, 1, 1);call write~init~int(105, 31, 2, 1);call write~init~int(0, 31, 3, 1);call #Ultimate.allocInit(4, 32);call write~init~int(32, 32, 0, 1);call write~init~int(37, 32, 1, 1);call write~init~int(105, 32, 2, 1);call write~init~int(0, 32, 3, 1);call #Ultimate.allocInit(4, 33);call write~init~int(32, 33, 0, 1);call write~init~int(37, 33, 1, 1);call write~init~int(105, 33, 2, 1);call write~init~int(0, 33, 3, 1);call #Ultimate.allocInit(4, 34);call write~init~int(32, 34, 0, 1);call write~init~int(37, 34, 1, 1);call write~init~int(105, 34, 2, 1);call write~init~int(0, 34, 3, 1);call #Ultimate.allocInit(4, 35);call write~init~int(32, 35, 0, 1);call write~init~int(37, 35, 1, 1);call write~init~int(105, 35, 2, 1);call write~init~int(0, 35, 3, 1);call #Ultimate.allocInit(2, 36);call write~init~int(10, 36, 0, 1);call write~init~int(0, 36, 1, 1);call #Ultimate.allocInit(9, 37);~doorState~0 := 1;~maximumWeight~0 := 100;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~persons_3~0 := 0;~weight~0 := 0;~persons_4~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_5~0 := 0;~persons_0~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~prevDir~0 := 0;~blocked~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~currentHeading~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~cleanupTimeShifts~0 := 12;~calls_1~0 := 0;~calls_0~0 := 0;~calls_4~0 := 0;~calls_3~0 := 0;~calls_2~0 := 0;~currentFloorID~0 := 0; 4191#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret128#1, main_~retValue_acc~27#1, main_~tmp~27#1;havoc main_~retValue_acc~27#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 7613#L2919true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2778#L2912true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~25#1;havoc valid_product_~retValue_acc~25#1;valid_product_~retValue_acc~25#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~25#1; 15758#L2927true main_#t~ret128#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret128#1;havoc main_#t~ret128#1; 16068#L3266true assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 10704#L3243true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret117#1, aliceCall_~tmp~20#1;havoc aliceCall_~tmp~20#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 395#L2819true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 3646#L2844true aliceCall_#t~ret117#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret117#1;havoc aliceCall_#t~ret117#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~20#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 3859#L2375true assume 0 == initPersonOnFloor_~floor#1; 15874#L2376true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 13651#L2483-1true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 7123#L2167true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 11145#L2179-2true assume { :end_inline_callOnFloor } true; 15245#L2519true assume { :end_inline_initPersonOnFloor } true; 12448#L3004true assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;havoc angelinaCall_~tmp~21#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 2566#L2819-1true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 9669#L2844-1true angelinaCall_#t~ret118#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret118#1;havoc angelinaCall_#t~ret118#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~21#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 7080#L2375-1true assume 0 == initPersonOnFloor_~floor#1; 9990#L2376-2true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 12661#L2483-3true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 16572#L2167-2true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 4273#L2179-5true assume { :end_inline_callOnFloor } true; 10274#L2519-1true assume { :end_inline_initPersonOnFloor } true; 14225#L3015true assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret79#1, timeShift_~tmp~14#1;havoc timeShift_~tmp~14#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;havoc getCurrentHeading_~retValue_acc~7#1;getCurrentHeading_~retValue_acc~7#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~7#1; 4067#L738true __utac_acc__Specification13_spec__1_#t~ret129#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret129#1;havoc __utac_acc__Specification13_spec__1_#t~ret129#1; 2150#L3288true assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;havoc areDoorsOpen_~retValue_acc~5#1;areDoorsOpen_~retValue_acc~5#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~5#1; 16153#L695true timeShift_#t~ret79#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~14#1 := timeShift_#t~ret79#1;havoc timeShift_#t~ret79#1; 9424#L1647true assume 0 != timeShift_~tmp~14#1; 13588#L1648true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 16852#L1647-1true assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret130#1, __utac_acc__Specification13_spec__2_#t~ret131#1, __utac_acc__Specification13_spec__2_#t~ret132#1, __utac_acc__Specification13_spec__2_#t~ret133#1, __utac_acc__Specification13_spec__2_#t~ret134#1, __utac_acc__Specification13_spec__2_#t~ret135#1, __utac_acc__Specification13_spec__2_~tmp~28#1, __utac_acc__Specification13_spec__2_~tmp___0~11#1, __utac_acc__Specification13_spec__2_~tmp___1~8#1, __utac_acc__Specification13_spec__2_~tmp___2~6#1, __utac_acc__Specification13_spec__2_~tmp___3~5#1, __utac_acc__Specification13_spec__2_~tmp___4~3#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;havoc __utac_acc__Specification13_spec__2_~tmp~28#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~11#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~8#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~6#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~5#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~3#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~7#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3); 13014#L3305true assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1; 10146#L3306true assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~17#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~17#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 2432#L1867true assume 1 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i~0#1 := 0;existInLiftCallsInDirection_~i~0#1 := 1 + ~currentFloorID~0; 7323#L1871-2true [2022-11-18 20:35:22,220 INFO L750 eck$LassoCheckResult]: Loop: 7323#L1871-2true assume !false; 67#L1872true assume existInLiftCallsInDirection_~i~0#1 < 5; 2751#L1873true assume !(0 == existInLiftCallsInDirection_~i~0#1); 8197#L1886true assume !(1 == existInLiftCallsInDirection_~i~0#1); 9311#L1895true assume !(2 == existInLiftCallsInDirection_~i~0#1); 13389#L1904true assume !(3 == existInLiftCallsInDirection_~i~0#1); 10510#L1913true assume !(4 == existInLiftCallsInDirection_~i~0#1); 16551#L1914-1true existInLiftCallsInDirection_~i~0#1 := 1 + existInLiftCallsInDirection_~i~0#1; 7323#L1871-2true [2022-11-18 20:35:22,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:22,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1544398965, now seen corresponding path program 1 times [2022-11-18 20:35:22,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:22,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268300004] [2022-11-18 20:35:22,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:22,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:22,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:22,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:22,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268300004] [2022-11-18 20:35:22,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268300004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:22,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:22,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:35:22,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065335760] [2022-11-18 20:35:22,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:22,754 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:35:22,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:22,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1775462013, now seen corresponding path program 1 times [2022-11-18 20:35:22,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:22,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127125140] [2022-11-18 20:35:22,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:22,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:22,773 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:22,815 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:22,875 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:35:22,875 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:35:22,875 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:35:22,876 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:35:22,876 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:35:22,876 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:35:22,876 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:35:22,877 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:35:22,877 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product22.cil.c_Iteration1_Loop [2022-11-18 20:35:22,877 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:35:22,877 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:35:22,898 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:35:22,978 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:35:22,991 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:35:22,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:35:22,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:23,027 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:35:23,081 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:35:23,081 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:35:23,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 20:35:23,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:35:23,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:35:23,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:23,117 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:35:23,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 20:35:23,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:35:23,129 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:35:23,169 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:35:23,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:35:23,179 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:35:23,179 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:35:23,179 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:35:23,179 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:35:23,179 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:35:23,179 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:35:23,180 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:35:23,180 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:35:23,180 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product22.cil.c_Iteration1_Loop [2022-11-18 20:35:23,180 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:35:23,180 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:35:23,181 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:35:23,231 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:35:23,236 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:35:23,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:35:23,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:23,239 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:35:23,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 20:35:23,244 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 [2022-11-18 20:35:23,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:35:23,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:35:23,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:35:23,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:35:23,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:35:23,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:35:23,263 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:35:23,273 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:35:23,280 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-18 20:35:23,280 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 20:35:23,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:35:23,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:23,287 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:35:23,297 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:35:23,297 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:35:23,298 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:35:23,298 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_existInLiftCallsInDirection_~i~0#1) = -1*ULTIMATE.start_existInLiftCallsInDirection_~i~0#1 Supporting invariants [] [2022-11-18 20:35:23,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 20:35:23,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:35:23,312 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:35:23,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:23,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:35:23,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:35:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:23,596 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:35:23,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:35:23,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:23,873 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2022-11-18 20:35:23,908 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17392 states, 17391 states have (on average 1.8840204703582313) internal successors, (32765), 17391 states have internal predecessors, (32765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:35:25,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df258571-57ab-4227-a1af-43e45d5a48b0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:35:34,422 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17392 states, 17391 states have (on average 1.8840204703582313) internal successors, (32765), 17391 states have internal predecessors, (32765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 204458 states and 385081 transitions. Complement of second has 18 states. [2022-11-18 20:35:34,426 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 [2022-11-18 20:35:34,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:35:34,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 208931 transitions. [2022-11-18 20:35:34,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 208931 transitions. Stem has 34 letters. Loop has 8 letters. [2022-11-18 20:35:34,742 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:35:34,742 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 208931 transitions. Stem has 42 letters. Loop has 8 letters. [2022-11-18 20:35:34,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:35:34,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 208931 transitions. Stem has 34 letters. Loop has 16 letters. [2022-11-18 20:35:34,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:35:34,746 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 204458 states and 385081 transitions. [2022-11-18 20:35:36,346 INFO L131 ngComponentsAnalysis]: Automaton has 66 accepting balls. 27864 [2022-11-18 20:35:37,355 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 204458 states to 110811 states and 208654 transitions. [2022-11-18 20:35:37,357 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 110781 [2022-11-18 20:35:37,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 110782 [2022-11-18 20:35:37,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110811 states and 208654 transitions. [2022-11-18 20:35:37,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:35:37,506 INFO L218 hiAutomatonCegarLoop]: Abstraction has 110811 states and 208654 transitions. [2022-11-18 20:35:37,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110811 states and 208654 transitions. [2022-11-18 20:35:38,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110811 to 31274. [2022-11-18 20:35:38,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31274 states, 31274 states have (on average 1.8800601138325765) internal successors, (58797), 31273 states have internal predecessors, (58797), 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) [2022-11-18 20:35:38,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31274 states to 31274 states and 58797 transitions. [2022-11-18 20:35:38,914 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31274 states and 58797 transitions. [2022-11-18 20:35:38,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:38,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:35:38,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:35:38,919 INFO L87 Difference]: Start difference. First operand 31274 states and 58797 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:35:40,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:40,182 INFO L93 Difference]: Finished difference Result 45181 states and 84793 transitions. [2022-11-18 20:35:40,182 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45181 states and 84793 transitions. [2022-11-18 20:35:40,620 INFO L131 ngComponentsAnalysis]: Automaton has 78 accepting balls. 15034 [2022-11-18 20:35:40,830 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45181 states to 45168 states and 84780 transitions. [2022-11-18 20:35:40,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45149 [2022-11-18 20:35:40,884 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45149 [2022-11-18 20:35:40,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45168 states and 84780 transitions. [2022-11-18 20:35:40,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:35:40,961 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45168 states and 84780 transitions. [2022-11-18 20:35:41,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45168 states and 84780 transitions. [2022-11-18 20:35:41,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45168 to 17389. [2022-11-18 20:35:41,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17389 states, 17389 states have (on average 1.8769912013341767) internal successors, (32639), 17388 states have internal predecessors, (32639), 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) [2022-11-18 20:35:41,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17389 states to 17389 states and 32639 transitions. [2022-11-18 20:35:41,500 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17389 states and 32639 transitions. [2022-11-18 20:35:41,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:35:41,501 INFO L428 stractBuchiCegarLoop]: Abstraction has 17389 states and 32639 transitions. [2022-11-18 20:35:41,501 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 20:35:41,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17389 states and 32639 transitions. [2022-11-18 20:35:41,584 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3964 [2022-11-18 20:35:41,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:35:41,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:35:41,587 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:41,587 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:35:41,588 INFO L748 eck$LassoCheckResult]: Stem: 310406#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(10, 16);call #Ultimate.allocInit(4, 17);call write~init~int(91, 17, 0, 1);call write~init~int(95, 17, 1, 1);call write~init~int(93, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(4, 18);call write~init~int(91, 18, 0, 1);call write~init~int(93, 18, 1, 1);call write~init~int(32, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(5, 19);call write~init~int(32, 19, 0, 1);call write~init~int(97, 19, 1, 1);call write~init~int(116, 19, 2, 1);call write~init~int(32, 19, 3, 1);call write~init~int(0, 19, 4, 1);call #Ultimate.allocInit(3, 20);call write~init~int(37, 20, 0, 1);call write~init~int(105, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(3, 22);call write~init~int(117, 22, 0, 1);call write~init~int(112, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(5, 23);call write~init~int(100, 23, 0, 1);call write~init~int(111, 23, 1, 1);call write~init~int(119, 23, 2, 1);call write~init~int(110, 23, 3, 1);call write~init~int(0, 23, 4, 1);call #Ultimate.allocInit(7, 24);call write~init~int(32, 24, 0, 1);call write~init~int(73, 24, 1, 1);call write~init~int(76, 24, 2, 1);call write~init~int(95, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(4, 25);call write~init~int(32, 25, 0, 1);call write~init~int(37, 25, 1, 1);call write~init~int(105, 25, 2, 1);call write~init~int(0, 25, 3, 1);call #Ultimate.allocInit(4, 26);call write~init~int(32, 26, 0, 1);call write~init~int(37, 26, 1, 1);call write~init~int(105, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(4, 27);call write~init~int(32, 27, 0, 1);call write~init~int(37, 27, 1, 1);call write~init~int(105, 27, 2, 1);call write~init~int(0, 27, 3, 1);call #Ultimate.allocInit(4, 28);call write~init~int(32, 28, 0, 1);call write~init~int(37, 28, 1, 1);call write~init~int(105, 28, 2, 1);call write~init~int(0, 28, 3, 1);call #Ultimate.allocInit(4, 29);call write~init~int(32, 29, 0, 1);call write~init~int(37, 29, 1, 1);call write~init~int(105, 29, 2, 1);call write~init~int(0, 29, 3, 1);call #Ultimate.allocInit(6, 30);call write~init~int(32, 30, 0, 1);call write~init~int(70, 30, 1, 1);call write~init~int(95, 30, 2, 1);call write~init~int(112, 30, 3, 1);call write~init~int(58, 30, 4, 1);call write~init~int(0, 30, 5, 1);call #Ultimate.allocInit(4, 31);call write~init~int(32, 31, 0, 1);call write~init~int(37, 31, 1, 1);call write~init~int(105, 31, 2, 1);call write~init~int(0, 31, 3, 1);call #Ultimate.allocInit(4, 32);call write~init~int(32, 32, 0, 1);call write~init~int(37, 32, 1, 1);call write~init~int(105, 32, 2, 1);call write~init~int(0, 32, 3, 1);call #Ultimate.allocInit(4, 33);call write~init~int(32, 33, 0, 1);call write~init~int(37, 33, 1, 1);call write~init~int(105, 33, 2, 1);call write~init~int(0, 33, 3, 1);call #Ultimate.allocInit(4, 34);call write~init~int(32, 34, 0, 1);call write~init~int(37, 34, 1, 1);call write~init~int(105, 34, 2, 1);call write~init~int(0, 34, 3, 1);call #Ultimate.allocInit(4, 35);call write~init~int(32, 35, 0, 1);call write~init~int(37, 35, 1, 1);call write~init~int(105, 35, 2, 1);call write~init~int(0, 35, 3, 1);call #Ultimate.allocInit(2, 36);call write~init~int(10, 36, 0, 1);call write~init~int(0, 36, 1, 1);call #Ultimate.allocInit(9, 37);~doorState~0 := 1;~maximumWeight~0 := 100;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~persons_3~0 := 0;~weight~0 := 0;~persons_4~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_5~0 := 0;~persons_0~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~prevDir~0 := 0;~blocked~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~currentHeading~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~cleanupTimeShifts~0 := 12;~calls_1~0 := 0;~calls_0~0 := 0;~calls_4~0 := 0;~calls_3~0 := 0;~calls_2~0 := 0;~currentFloorID~0 := 0; 306831#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret128#1, main_~retValue_acc~27#1, main_~tmp~27#1;havoc main_~retValue_acc~27#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 306832#L2919 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 304504#L2912 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~25#1;havoc valid_product_~retValue_acc~25#1;valid_product_~retValue_acc~25#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~25#1; 304505#L2927 main_#t~ret128#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret128#1;havoc main_#t~ret128#1; 315726#L3266 assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 313671#L3243 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret117#1, aliceCall_~tmp~20#1;havoc aliceCall_~tmp~20#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 299502#L2819 assume !(0 == getOrigin_~person#1); 299503#L2823 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 305974#L2844 aliceCall_#t~ret117#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret117#1;havoc aliceCall_#t~ret117#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~20#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 305975#L2375 assume 0 == initPersonOnFloor_~floor#1; 306310#L2376 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 298820#L2483-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 310570#L2167 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 304438#L2179-2 assume { :end_inline_callOnFloor } true; 313948#L2519 assume { :end_inline_initPersonOnFloor } true; 314666#L3004 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;havoc angelinaCall_~tmp~21#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 304111#L2819-1 assume !(0 == getOrigin_~person#1); 304112#L2823-1 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 308630#L2844-1 angelinaCall_#t~ret118#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret118#1;havoc angelinaCall_#t~ret118#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~21#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 310524#L2375-1 assume 0 == initPersonOnFloor_~floor#1; 310525#L2376-2 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 298956#L2483-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 314769#L2167-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 306940#L2179-5 assume { :end_inline_callOnFloor } true; 306941#L2519-1 assume { :end_inline_initPersonOnFloor } true; 313385#L3015 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret79#1, timeShift_~tmp~14#1;havoc timeShift_~tmp~14#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;havoc getCurrentHeading_~retValue_acc~7#1;getCurrentHeading_~retValue_acc~7#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~7#1; 306643#L738 __utac_acc__Specification13_spec__1_#t~ret129#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret129#1;havoc __utac_acc__Specification13_spec__1_#t~ret129#1; 303321#L3288 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;havoc areDoorsOpen_~retValue_acc~5#1;areDoorsOpen_~retValue_acc~5#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~5#1; 303322#L695 timeShift_#t~ret79#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~14#1 := timeShift_#t~ret79#1;havoc timeShift_#t~ret79#1; 312740#L1647 assume 0 != timeShift_~tmp~14#1; 312741#L1648 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 314811#L1647-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret130#1, __utac_acc__Specification13_spec__2_#t~ret131#1, __utac_acc__Specification13_spec__2_#t~ret132#1, __utac_acc__Specification13_spec__2_#t~ret133#1, __utac_acc__Specification13_spec__2_#t~ret134#1, __utac_acc__Specification13_spec__2_#t~ret135#1, __utac_acc__Specification13_spec__2_~tmp~28#1, __utac_acc__Specification13_spec__2_~tmp___0~11#1, __utac_acc__Specification13_spec__2_~tmp___1~8#1, __utac_acc__Specification13_spec__2_~tmp___2~6#1, __utac_acc__Specification13_spec__2_~tmp___3~5#1, __utac_acc__Specification13_spec__2_~tmp___4~3#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;havoc __utac_acc__Specification13_spec__2_~tmp~28#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~11#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~8#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~6#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~5#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~3#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~7#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3); 314916#L3305 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1; 313292#L3306 assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~17#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~17#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 303851#L1867 assume !(1 == existInLiftCallsInDirection_~d#1); 303852#L1933 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 302106#L1937-2 [2022-11-18 20:35:41,588 INFO L750 eck$LassoCheckResult]: Loop: 302106#L1937-2 assume !false; 302107#L1938 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 303755#L1939 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 305699#L1946-2 assume !false; 304969#L1947 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 304971#L2005 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 302106#L1937-2 [2022-11-18 20:35:41,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:41,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1440334859, now seen corresponding path program 1 times [2022-11-18 20:35:41,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:41,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793899198] [2022-11-18 20:35:41,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:41,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:41,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:41,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793899198] [2022-11-18 20:35:41,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793899198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:41,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:41,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:35:41,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201569997] [2022-11-18 20:35:41,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:41,798 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:35:41,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:41,799 INFO L85 PathProgramCache]: Analyzing trace with hash 763776811, now seen corresponding path program 1 times [2022-11-18 20:35:41,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:41,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036284079] [2022-11-18 20:35:41,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:41,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:41,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:41,816 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:41,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:41,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:35:41,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:35:41,856 INFO L87 Difference]: Start difference. First operand 17389 states and 32639 transitions. cyclomatic complexity: 15284 Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:35:43,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:43,533 INFO L93 Difference]: Finished difference Result 51950 states and 97487 transitions. [2022-11-18 20:35:43,533 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51950 states and 97487 transitions. [2022-11-18 20:35:43,708 INFO L131 ngComponentsAnalysis]: Automaton has 99 accepting balls. 11892 [2022-11-18 20:35:43,897 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51950 states to 51950 states and 97487 transitions. [2022-11-18 20:35:43,897 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51893 [2022-11-18 20:35:43,970 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51893 [2022-11-18 20:35:43,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51950 states and 97487 transitions. [2022-11-18 20:35:43,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:35:43,972 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51950 states and 97487 transitions. [2022-11-18 20:35:44,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51950 states and 97487 transitions. [2022-11-18 20:35:44,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51950 to 17404. [2022-11-18 20:35:44,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17404 states, 17404 states have (on average 1.876235348195817) internal successors, (32654), 17403 states have internal predecessors, (32654), 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) [2022-11-18 20:35:44,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17404 states to 17404 states and 32654 transitions. [2022-11-18 20:35:44,729 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17404 states and 32654 transitions. [2022-11-18 20:35:44,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:35:44,732 INFO L428 stractBuchiCegarLoop]: Abstraction has 17404 states and 32654 transitions. [2022-11-18 20:35:44,733 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 20:35:44,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17404 states and 32654 transitions. [2022-11-18 20:35:44,794 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3964 [2022-11-18 20:35:44,800 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:35:44,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:35:44,804 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:44,804 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:35:44,804 INFO L748 eck$LassoCheckResult]: Stem: 379751#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(10, 16);call #Ultimate.allocInit(4, 17);call write~init~int(91, 17, 0, 1);call write~init~int(95, 17, 1, 1);call write~init~int(93, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(4, 18);call write~init~int(91, 18, 0, 1);call write~init~int(93, 18, 1, 1);call write~init~int(32, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(5, 19);call write~init~int(32, 19, 0, 1);call write~init~int(97, 19, 1, 1);call write~init~int(116, 19, 2, 1);call write~init~int(32, 19, 3, 1);call write~init~int(0, 19, 4, 1);call #Ultimate.allocInit(3, 20);call write~init~int(37, 20, 0, 1);call write~init~int(105, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(3, 22);call write~init~int(117, 22, 0, 1);call write~init~int(112, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(5, 23);call write~init~int(100, 23, 0, 1);call write~init~int(111, 23, 1, 1);call write~init~int(119, 23, 2, 1);call write~init~int(110, 23, 3, 1);call write~init~int(0, 23, 4, 1);call #Ultimate.allocInit(7, 24);call write~init~int(32, 24, 0, 1);call write~init~int(73, 24, 1, 1);call write~init~int(76, 24, 2, 1);call write~init~int(95, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(4, 25);call write~init~int(32, 25, 0, 1);call write~init~int(37, 25, 1, 1);call write~init~int(105, 25, 2, 1);call write~init~int(0, 25, 3, 1);call #Ultimate.allocInit(4, 26);call write~init~int(32, 26, 0, 1);call write~init~int(37, 26, 1, 1);call write~init~int(105, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(4, 27);call write~init~int(32, 27, 0, 1);call write~init~int(37, 27, 1, 1);call write~init~int(105, 27, 2, 1);call write~init~int(0, 27, 3, 1);call #Ultimate.allocInit(4, 28);call write~init~int(32, 28, 0, 1);call write~init~int(37, 28, 1, 1);call write~init~int(105, 28, 2, 1);call write~init~int(0, 28, 3, 1);call #Ultimate.allocInit(4, 29);call write~init~int(32, 29, 0, 1);call write~init~int(37, 29, 1, 1);call write~init~int(105, 29, 2, 1);call write~init~int(0, 29, 3, 1);call #Ultimate.allocInit(6, 30);call write~init~int(32, 30, 0, 1);call write~init~int(70, 30, 1, 1);call write~init~int(95, 30, 2, 1);call write~init~int(112, 30, 3, 1);call write~init~int(58, 30, 4, 1);call write~init~int(0, 30, 5, 1);call #Ultimate.allocInit(4, 31);call write~init~int(32, 31, 0, 1);call write~init~int(37, 31, 1, 1);call write~init~int(105, 31, 2, 1);call write~init~int(0, 31, 3, 1);call #Ultimate.allocInit(4, 32);call write~init~int(32, 32, 0, 1);call write~init~int(37, 32, 1, 1);call write~init~int(105, 32, 2, 1);call write~init~int(0, 32, 3, 1);call #Ultimate.allocInit(4, 33);call write~init~int(32, 33, 0, 1);call write~init~int(37, 33, 1, 1);call write~init~int(105, 33, 2, 1);call write~init~int(0, 33, 3, 1);call #Ultimate.allocInit(4, 34);call write~init~int(32, 34, 0, 1);call write~init~int(37, 34, 1, 1);call write~init~int(105, 34, 2, 1);call write~init~int(0, 34, 3, 1);call #Ultimate.allocInit(4, 35);call write~init~int(32, 35, 0, 1);call write~init~int(37, 35, 1, 1);call write~init~int(105, 35, 2, 1);call write~init~int(0, 35, 3, 1);call #Ultimate.allocInit(2, 36);call write~init~int(10, 36, 0, 1);call write~init~int(0, 36, 1, 1);call #Ultimate.allocInit(9, 37);~doorState~0 := 1;~maximumWeight~0 := 100;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~persons_3~0 := 0;~weight~0 := 0;~persons_4~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_5~0 := 0;~persons_0~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~prevDir~0 := 0;~blocked~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~currentHeading~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~cleanupTimeShifts~0 := 12;~calls_1~0 := 0;~calls_0~0 := 0;~calls_4~0 := 0;~calls_3~0 := 0;~calls_2~0 := 0;~currentFloorID~0 := 0; 376172#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret128#1, main_~retValue_acc~27#1, main_~tmp~27#1;havoc main_~retValue_acc~27#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 376173#L2919 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 373846#L2912 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~25#1;havoc valid_product_~retValue_acc~25#1;valid_product_~retValue_acc~25#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~25#1; 373847#L2927 main_#t~ret128#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret128#1;havoc main_#t~ret128#1; 385075#L3266 assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 383017#L3243 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret117#1, aliceCall_~tmp~20#1;havoc aliceCall_~tmp~20#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 368850#L2819 assume !(0 == getOrigin_~person#1); 368851#L2823 assume !(1 == getOrigin_~person#1); 377363#L2827 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 377364#L2844 aliceCall_#t~ret117#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret117#1;havoc aliceCall_#t~ret117#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~20#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 385228#L2375 assume 0 == initPersonOnFloor_~floor#1; 385090#L2376 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 368168#L2483-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 379914#L2167 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 373782#L2179-2 assume { :end_inline_callOnFloor } true; 383294#L2519 assume { :end_inline_initPersonOnFloor } true; 384011#L3004 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;havoc angelinaCall_~tmp~21#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 373455#L2819-1 assume !(0 == getOrigin_~person#1); 373456#L2823-1 assume !(1 == getOrigin_~person#1); 377974#L2827-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 379991#L2844-1 angelinaCall_#t~ret118#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret118#1;havoc angelinaCall_#t~ret118#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~21#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 385224#L2375-1 assume 0 == initPersonOnFloor_~floor#1; 382531#L2376-2 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 368304#L2483-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 384115#L2167-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 376281#L2179-5 assume { :end_inline_callOnFloor } true; 376282#L2519-1 assume { :end_inline_initPersonOnFloor } true; 382731#L3015 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret79#1, timeShift_~tmp~14#1;havoc timeShift_~tmp~14#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;havoc getCurrentHeading_~retValue_acc~7#1;getCurrentHeading_~retValue_acc~7#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~7#1; 375984#L738 __utac_acc__Specification13_spec__1_#t~ret129#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret129#1;havoc __utac_acc__Specification13_spec__1_#t~ret129#1; 372667#L3288 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;havoc areDoorsOpen_~retValue_acc~5#1;areDoorsOpen_~retValue_acc~5#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~5#1; 372668#L695 timeShift_#t~ret79#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~14#1 := timeShift_#t~ret79#1;havoc timeShift_#t~ret79#1; 382085#L1647 assume 0 != timeShift_~tmp~14#1; 382086#L1648 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 384156#L1647-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret130#1, __utac_acc__Specification13_spec__2_#t~ret131#1, __utac_acc__Specification13_spec__2_#t~ret132#1, __utac_acc__Specification13_spec__2_#t~ret133#1, __utac_acc__Specification13_spec__2_#t~ret134#1, __utac_acc__Specification13_spec__2_#t~ret135#1, __utac_acc__Specification13_spec__2_~tmp~28#1, __utac_acc__Specification13_spec__2_~tmp___0~11#1, __utac_acc__Specification13_spec__2_~tmp___1~8#1, __utac_acc__Specification13_spec__2_~tmp___2~6#1, __utac_acc__Specification13_spec__2_~tmp___3~5#1, __utac_acc__Specification13_spec__2_~tmp___4~3#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;havoc __utac_acc__Specification13_spec__2_~tmp~28#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~11#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~8#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~6#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~5#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~3#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~7#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3); 384262#L3305 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1; 382638#L3306 assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~17#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~17#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 373196#L1867 assume !(1 == existInLiftCallsInDirection_~d#1); 373197#L1933 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 371451#L1937-2 [2022-11-18 20:35:44,805 INFO L750 eck$LassoCheckResult]: Loop: 371451#L1937-2 assume !false; 371452#L1938 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 373098#L1939 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 375041#L1946-2 assume !false; 374313#L1947 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 374315#L2005 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 371451#L1937-2 [2022-11-18 20:35:44,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:44,805 INFO L85 PathProgramCache]: Analyzing trace with hash 920334271, now seen corresponding path program 1 times [2022-11-18 20:35:44,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:44,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969487161] [2022-11-18 20:35:44,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:44,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:44,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:44,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:44,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969487161] [2022-11-18 20:35:44,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969487161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:44,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:44,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:35:44,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433676183] [2022-11-18 20:35:44,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:44,896 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:35:44,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:44,897 INFO L85 PathProgramCache]: Analyzing trace with hash 763776811, now seen corresponding path program 2 times [2022-11-18 20:35:44,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:44,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605441691] [2022-11-18 20:35:44,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:44,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:44,903 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:44,918 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:44,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:44,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:44,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:44,942 INFO L87 Difference]: Start difference. First operand 17404 states and 32654 transitions. cyclomatic complexity: 15284 Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2022-11-18 20:35:45,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:45,678 INFO L93 Difference]: Finished difference Result 34629 states and 64981 transitions. [2022-11-18 20:35:45,679 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34629 states and 64981 transitions. [2022-11-18 20:35:45,824 INFO L131 ngComponentsAnalysis]: Automaton has 66 accepting balls. 7928 [2022-11-18 20:35:45,954 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34629 states to 34629 states and 64981 transitions. [2022-11-18 20:35:45,954 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34591 [2022-11-18 20:35:45,984 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34591 [2022-11-18 20:35:45,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34629 states and 64981 transitions. [2022-11-18 20:35:46,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:35:46,021 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34629 states and 64981 transitions. [2022-11-18 20:35:46,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34629 states and 64981 transitions. [2022-11-18 20:35:46,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34629 to 17370. [2022-11-18 20:35:46,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17370 states, 17370 states have (on average 1.875993091537133) internal successors, (32586), 17369 states have internal predecessors, (32586), 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) [2022-11-18 20:35:46,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17370 states to 17370 states and 32586 transitions. [2022-11-18 20:35:46,472 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17370 states and 32586 transitions. [2022-11-18 20:35:46,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:46,473 INFO L428 stractBuchiCegarLoop]: Abstraction has 17370 states and 32586 transitions. [2022-11-18 20:35:46,473 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 20:35:46,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17370 states and 32586 transitions. [2022-11-18 20:35:46,557 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3964 [2022-11-18 20:35:46,558 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:35:46,558 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:35:46,559 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:46,559 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:35:46,559 INFO L748 eck$LassoCheckResult]: Stem: 431773#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(10, 16);call #Ultimate.allocInit(4, 17);call write~init~int(91, 17, 0, 1);call write~init~int(95, 17, 1, 1);call write~init~int(93, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(4, 18);call write~init~int(91, 18, 0, 1);call write~init~int(93, 18, 1, 1);call write~init~int(32, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(5, 19);call write~init~int(32, 19, 0, 1);call write~init~int(97, 19, 1, 1);call write~init~int(116, 19, 2, 1);call write~init~int(32, 19, 3, 1);call write~init~int(0, 19, 4, 1);call #Ultimate.allocInit(3, 20);call write~init~int(37, 20, 0, 1);call write~init~int(105, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(3, 22);call write~init~int(117, 22, 0, 1);call write~init~int(112, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(5, 23);call write~init~int(100, 23, 0, 1);call write~init~int(111, 23, 1, 1);call write~init~int(119, 23, 2, 1);call write~init~int(110, 23, 3, 1);call write~init~int(0, 23, 4, 1);call #Ultimate.allocInit(7, 24);call write~init~int(32, 24, 0, 1);call write~init~int(73, 24, 1, 1);call write~init~int(76, 24, 2, 1);call write~init~int(95, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(4, 25);call write~init~int(32, 25, 0, 1);call write~init~int(37, 25, 1, 1);call write~init~int(105, 25, 2, 1);call write~init~int(0, 25, 3, 1);call #Ultimate.allocInit(4, 26);call write~init~int(32, 26, 0, 1);call write~init~int(37, 26, 1, 1);call write~init~int(105, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(4, 27);call write~init~int(32, 27, 0, 1);call write~init~int(37, 27, 1, 1);call write~init~int(105, 27, 2, 1);call write~init~int(0, 27, 3, 1);call #Ultimate.allocInit(4, 28);call write~init~int(32, 28, 0, 1);call write~init~int(37, 28, 1, 1);call write~init~int(105, 28, 2, 1);call write~init~int(0, 28, 3, 1);call #Ultimate.allocInit(4, 29);call write~init~int(32, 29, 0, 1);call write~init~int(37, 29, 1, 1);call write~init~int(105, 29, 2, 1);call write~init~int(0, 29, 3, 1);call #Ultimate.allocInit(6, 30);call write~init~int(32, 30, 0, 1);call write~init~int(70, 30, 1, 1);call write~init~int(95, 30, 2, 1);call write~init~int(112, 30, 3, 1);call write~init~int(58, 30, 4, 1);call write~init~int(0, 30, 5, 1);call #Ultimate.allocInit(4, 31);call write~init~int(32, 31, 0, 1);call write~init~int(37, 31, 1, 1);call write~init~int(105, 31, 2, 1);call write~init~int(0, 31, 3, 1);call #Ultimate.allocInit(4, 32);call write~init~int(32, 32, 0, 1);call write~init~int(37, 32, 1, 1);call write~init~int(105, 32, 2, 1);call write~init~int(0, 32, 3, 1);call #Ultimate.allocInit(4, 33);call write~init~int(32, 33, 0, 1);call write~init~int(37, 33, 1, 1);call write~init~int(105, 33, 2, 1);call write~init~int(0, 33, 3, 1);call #Ultimate.allocInit(4, 34);call write~init~int(32, 34, 0, 1);call write~init~int(37, 34, 1, 1);call write~init~int(105, 34, 2, 1);call write~init~int(0, 34, 3, 1);call #Ultimate.allocInit(4, 35);call write~init~int(32, 35, 0, 1);call write~init~int(37, 35, 1, 1);call write~init~int(105, 35, 2, 1);call write~init~int(0, 35, 3, 1);call #Ultimate.allocInit(2, 36);call write~init~int(10, 36, 0, 1);call write~init~int(0, 36, 1, 1);call #Ultimate.allocInit(9, 37);~doorState~0 := 1;~maximumWeight~0 := 100;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~persons_3~0 := 0;~weight~0 := 0;~persons_4~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_5~0 := 0;~persons_0~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~prevDir~0 := 0;~blocked~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~currentHeading~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~cleanupTimeShifts~0 := 12;~calls_1~0 := 0;~calls_0~0 := 0;~calls_4~0 := 0;~calls_3~0 := 0;~calls_2~0 := 0;~currentFloorID~0 := 0; 428203#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret128#1, main_~retValue_acc~27#1, main_~tmp~27#1;havoc main_~retValue_acc~27#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 428204#L2919 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 425880#L2912 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~25#1;havoc valid_product_~retValue_acc~25#1;valid_product_~retValue_acc~25#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~25#1; 425881#L2927 main_#t~ret128#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret128#1;havoc main_#t~ret128#1; 437090#L3266 assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 435036#L3243 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret117#1, aliceCall_~tmp~20#1;havoc aliceCall_~tmp~20#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 420886#L2819 assume !(0 == getOrigin_~person#1); 420887#L2823 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 427348#L2844 aliceCall_#t~ret117#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret117#1;havoc aliceCall_#t~ret117#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~20#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 427349#L2375 assume !(0 == initPersonOnFloor_~floor#1); 421850#L2402 assume !(1 == initPersonOnFloor_~floor#1); 421851#L2429 assume !(2 == initPersonOnFloor_~floor#1); 424750#L2456 assume 3 == initPersonOnFloor_~floor#1; 424751#L2457 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_3~0 := 1; 434160#L2483-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 431935#L2167 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 425814#L2179-2 assume { :end_inline_callOnFloor } true; 435311#L2519 assume { :end_inline_initPersonOnFloor } true; 436028#L3004 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;havoc angelinaCall_~tmp~21#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 425487#L2819-1 assume !(0 == getOrigin_~person#1); 425488#L2823-1 assume !(1 == getOrigin_~person#1); 430000#L2827-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 432012#L2844-1 angelinaCall_#t~ret118#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret118#1;havoc angelinaCall_#t~ret118#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~21#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 437237#L2375-1 assume 0 == initPersonOnFloor_~floor#1; 434547#L2376-2 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 420340#L2483-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 436132#L2167-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 428312#L2179-5 assume { :end_inline_callOnFloor } true; 428313#L2519-1 assume { :end_inline_initPersonOnFloor } true; 434748#L3015 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret79#1, timeShift_~tmp~14#1;havoc timeShift_~tmp~14#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;havoc getCurrentHeading_~retValue_acc~7#1;getCurrentHeading_~retValue_acc~7#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~7#1; 428015#L738 __utac_acc__Specification13_spec__1_#t~ret129#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret129#1;havoc __utac_acc__Specification13_spec__1_#t~ret129#1; 424701#L3288 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;havoc areDoorsOpen_~retValue_acc~5#1;areDoorsOpen_~retValue_acc~5#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~5#1; 424702#L695 timeShift_#t~ret79#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~14#1 := timeShift_#t~ret79#1;havoc timeShift_#t~ret79#1; 434101#L1647 assume 0 != timeShift_~tmp~14#1; 434102#L1648 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 436174#L1647-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret130#1, __utac_acc__Specification13_spec__2_#t~ret131#1, __utac_acc__Specification13_spec__2_#t~ret132#1, __utac_acc__Specification13_spec__2_#t~ret133#1, __utac_acc__Specification13_spec__2_#t~ret134#1, __utac_acc__Specification13_spec__2_#t~ret135#1, __utac_acc__Specification13_spec__2_~tmp~28#1, __utac_acc__Specification13_spec__2_~tmp___0~11#1, __utac_acc__Specification13_spec__2_~tmp___1~8#1, __utac_acc__Specification13_spec__2_~tmp___2~6#1, __utac_acc__Specification13_spec__2_~tmp___3~5#1, __utac_acc__Specification13_spec__2_~tmp___4~3#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;havoc __utac_acc__Specification13_spec__2_~tmp~28#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~11#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~8#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~6#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~5#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~3#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~7#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3); 436278#L3305 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1; 434655#L3306 assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~17#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~17#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 425228#L1867 assume !(1 == existInLiftCallsInDirection_~d#1); 425229#L1933 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 423486#L1937-2 [2022-11-18 20:35:46,560 INFO L750 eck$LassoCheckResult]: Loop: 423486#L1937-2 assume !false; 423487#L1938 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 425132#L1939 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 427073#L1946-2 assume !false; 426345#L1947 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 426347#L2005 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 423486#L1937-2 [2022-11-18 20:35:46,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:46,561 INFO L85 PathProgramCache]: Analyzing trace with hash -89409166, now seen corresponding path program 1 times [2022-11-18 20:35:46,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:46,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816298203] [2022-11-18 20:35:46,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:46,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:46,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:46,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:46,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816298203] [2022-11-18 20:35:46,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816298203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:46,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:46,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:35:46,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63355428] [2022-11-18 20:35:46,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:46,727 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:35:46,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:46,728 INFO L85 PathProgramCache]: Analyzing trace with hash 763776811, now seen corresponding path program 3 times [2022-11-18 20:35:46,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:46,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790499709] [2022-11-18 20:35:46,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:46,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:46,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:46,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:46,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:46,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:35:46,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:35:46,777 INFO L87 Difference]: Start difference. First operand 17370 states and 32586 transitions. cyclomatic complexity: 15250 Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2022-11-18 20:35:47,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:47,925 INFO L93 Difference]: Finished difference Result 24290 states and 45566 transitions. [2022-11-18 20:35:47,925 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24290 states and 45566 transitions. [2022-11-18 20:35:47,997 INFO L131 ngComponentsAnalysis]: Automaton has 42 accepting balls. 7564 [2022-11-18 20:35:48,052 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24290 states to 24290 states and 45566 transitions. [2022-11-18 20:35:48,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24271 [2022-11-18 20:35:48,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24271 [2022-11-18 20:35:48,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24290 states and 45566 transitions. [2022-11-18 20:35:48,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:35:48,073 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24290 states and 45566 transitions. [2022-11-18 20:35:48,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24290 states and 45566 transitions. [2022-11-18 20:35:48,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24290 to 17370. [2022-11-18 20:35:48,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17370 states, 17370 states have (on average 1.8756476683937824) internal successors, (32580), 17369 states have internal predecessors, (32580), 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) [2022-11-18 20:35:48,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17370 states to 17370 states and 32580 transitions. [2022-11-18 20:35:48,389 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17370 states and 32580 transitions. [2022-11-18 20:35:48,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:35:48,393 INFO L428 stractBuchiCegarLoop]: Abstraction has 17370 states and 32580 transitions. [2022-11-18 20:35:48,393 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 20:35:48,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17370 states and 32580 transitions. [2022-11-18 20:35:48,451 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3964 [2022-11-18 20:35:48,451 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:35:48,451 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:35:48,451 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:48,452 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:35:48,452 INFO L748 eck$LassoCheckResult]: Stem: 473446#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(10, 16);call #Ultimate.allocInit(4, 17);call write~init~int(91, 17, 0, 1);call write~init~int(95, 17, 1, 1);call write~init~int(93, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(4, 18);call write~init~int(91, 18, 0, 1);call write~init~int(93, 18, 1, 1);call write~init~int(32, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(5, 19);call write~init~int(32, 19, 0, 1);call write~init~int(97, 19, 1, 1);call write~init~int(116, 19, 2, 1);call write~init~int(32, 19, 3, 1);call write~init~int(0, 19, 4, 1);call #Ultimate.allocInit(3, 20);call write~init~int(37, 20, 0, 1);call write~init~int(105, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(3, 22);call write~init~int(117, 22, 0, 1);call write~init~int(112, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(5, 23);call write~init~int(100, 23, 0, 1);call write~init~int(111, 23, 1, 1);call write~init~int(119, 23, 2, 1);call write~init~int(110, 23, 3, 1);call write~init~int(0, 23, 4, 1);call #Ultimate.allocInit(7, 24);call write~init~int(32, 24, 0, 1);call write~init~int(73, 24, 1, 1);call write~init~int(76, 24, 2, 1);call write~init~int(95, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(4, 25);call write~init~int(32, 25, 0, 1);call write~init~int(37, 25, 1, 1);call write~init~int(105, 25, 2, 1);call write~init~int(0, 25, 3, 1);call #Ultimate.allocInit(4, 26);call write~init~int(32, 26, 0, 1);call write~init~int(37, 26, 1, 1);call write~init~int(105, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(4, 27);call write~init~int(32, 27, 0, 1);call write~init~int(37, 27, 1, 1);call write~init~int(105, 27, 2, 1);call write~init~int(0, 27, 3, 1);call #Ultimate.allocInit(4, 28);call write~init~int(32, 28, 0, 1);call write~init~int(37, 28, 1, 1);call write~init~int(105, 28, 2, 1);call write~init~int(0, 28, 3, 1);call #Ultimate.allocInit(4, 29);call write~init~int(32, 29, 0, 1);call write~init~int(37, 29, 1, 1);call write~init~int(105, 29, 2, 1);call write~init~int(0, 29, 3, 1);call #Ultimate.allocInit(6, 30);call write~init~int(32, 30, 0, 1);call write~init~int(70, 30, 1, 1);call write~init~int(95, 30, 2, 1);call write~init~int(112, 30, 3, 1);call write~init~int(58, 30, 4, 1);call write~init~int(0, 30, 5, 1);call #Ultimate.allocInit(4, 31);call write~init~int(32, 31, 0, 1);call write~init~int(37, 31, 1, 1);call write~init~int(105, 31, 2, 1);call write~init~int(0, 31, 3, 1);call #Ultimate.allocInit(4, 32);call write~init~int(32, 32, 0, 1);call write~init~int(37, 32, 1, 1);call write~init~int(105, 32, 2, 1);call write~init~int(0, 32, 3, 1);call #Ultimate.allocInit(4, 33);call write~init~int(32, 33, 0, 1);call write~init~int(37, 33, 1, 1);call write~init~int(105, 33, 2, 1);call write~init~int(0, 33, 3, 1);call #Ultimate.allocInit(4, 34);call write~init~int(32, 34, 0, 1);call write~init~int(37, 34, 1, 1);call write~init~int(105, 34, 2, 1);call write~init~int(0, 34, 3, 1);call #Ultimate.allocInit(4, 35);call write~init~int(32, 35, 0, 1);call write~init~int(37, 35, 1, 1);call write~init~int(105, 35, 2, 1);call write~init~int(0, 35, 3, 1);call #Ultimate.allocInit(2, 36);call write~init~int(10, 36, 0, 1);call write~init~int(0, 36, 1, 1);call #Ultimate.allocInit(9, 37);~doorState~0 := 1;~maximumWeight~0 := 100;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~persons_3~0 := 0;~weight~0 := 0;~persons_4~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_5~0 := 0;~persons_0~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~prevDir~0 := 0;~blocked~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~currentHeading~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~cleanupTimeShifts~0 := 12;~calls_1~0 := 0;~calls_0~0 := 0;~calls_4~0 := 0;~calls_3~0 := 0;~calls_2~0 := 0;~currentFloorID~0 := 0; 469876#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret128#1, main_~retValue_acc~27#1, main_~tmp~27#1;havoc main_~retValue_acc~27#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 469877#L2919 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 467551#L2912 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~25#1;havoc valid_product_~retValue_acc~25#1;valid_product_~retValue_acc~25#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~25#1; 467552#L2927 main_#t~ret128#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret128#1;havoc main_#t~ret128#1; 478759#L3266 assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 476705#L3243 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret117#1, aliceCall_~tmp~20#1;havoc aliceCall_~tmp~20#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 462559#L2819 assume !(0 == getOrigin_~person#1); 462560#L2823 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 469021#L2844 aliceCall_#t~ret117#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret117#1;havoc aliceCall_#t~ret117#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~20#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 469022#L2375 assume !(0 == initPersonOnFloor_~floor#1); 463523#L2402 assume !(1 == initPersonOnFloor_~floor#1); 463524#L2429 assume !(2 == initPersonOnFloor_~floor#1); 466422#L2456 assume 3 == initPersonOnFloor_~floor#1; 466423#L2457 assume !(0 == initPersonOnFloor_~person#1); 478353#L2460 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_3~0 := 1; 475833#L2483-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 473608#L2167 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 467487#L2179-2 assume { :end_inline_callOnFloor } true; 476982#L2519 assume { :end_inline_initPersonOnFloor } true; 477698#L3004 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;havoc angelinaCall_~tmp~21#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 467160#L2819-1 assume !(0 == getOrigin_~person#1); 467161#L2823-1 assume !(1 == getOrigin_~person#1); 471673#L2827-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 473685#L2844-1 angelinaCall_#t~ret118#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret118#1;havoc angelinaCall_#t~ret118#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~21#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 478911#L2375-1 assume 0 == initPersonOnFloor_~floor#1; 476221#L2376-2 assume !(0 == initPersonOnFloor_~person#1); 476222#L2379-2 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_0~0 := 1; 462013#L2483-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 477802#L2167-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 469985#L2179-5 assume { :end_inline_callOnFloor } true; 469986#L2519-1 assume { :end_inline_initPersonOnFloor } true; 476421#L3015 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret79#1, timeShift_~tmp~14#1;havoc timeShift_~tmp~14#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;havoc getCurrentHeading_~retValue_acc~7#1;getCurrentHeading_~retValue_acc~7#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~7#1; 469688#L738 __utac_acc__Specification13_spec__1_#t~ret129#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret129#1;havoc __utac_acc__Specification13_spec__1_#t~ret129#1; 466374#L3288 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;havoc areDoorsOpen_~retValue_acc~5#1;areDoorsOpen_~retValue_acc~5#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~5#1; 466375#L695 timeShift_#t~ret79#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~14#1 := timeShift_#t~ret79#1;havoc timeShift_#t~ret79#1; 475775#L1647 assume 0 != timeShift_~tmp~14#1; 475776#L1648 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 477844#L1647-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret130#1, __utac_acc__Specification13_spec__2_#t~ret131#1, __utac_acc__Specification13_spec__2_#t~ret132#1, __utac_acc__Specification13_spec__2_#t~ret133#1, __utac_acc__Specification13_spec__2_#t~ret134#1, __utac_acc__Specification13_spec__2_#t~ret135#1, __utac_acc__Specification13_spec__2_~tmp~28#1, __utac_acc__Specification13_spec__2_~tmp___0~11#1, __utac_acc__Specification13_spec__2_~tmp___1~8#1, __utac_acc__Specification13_spec__2_~tmp___2~6#1, __utac_acc__Specification13_spec__2_~tmp___3~5#1, __utac_acc__Specification13_spec__2_~tmp___4~3#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;havoc __utac_acc__Specification13_spec__2_~tmp~28#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~11#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~8#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~6#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~5#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~3#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~7#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3); 477948#L3305 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1; 476328#L3306 assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~17#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~17#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 466901#L1867 assume !(1 == existInLiftCallsInDirection_~d#1); 466902#L1933 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 465158#L1937-2 [2022-11-18 20:35:48,452 INFO L750 eck$LassoCheckResult]: Loop: 465158#L1937-2 assume !false; 465159#L1938 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 466803#L1939 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 468745#L1946-2 assume !false; 468018#L1947 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 468020#L2005 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 465158#L1937-2 [2022-11-18 20:35:48,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:48,453 INFO L85 PathProgramCache]: Analyzing trace with hash 132035382, now seen corresponding path program 1 times [2022-11-18 20:35:48,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:48,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166622058] [2022-11-18 20:35:48,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:48,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:48,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:48,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:48,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166622058] [2022-11-18 20:35:48,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166622058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:48,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:48,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:35:48,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892660658] [2022-11-18 20:35:48,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:48,530 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:35:48,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:48,531 INFO L85 PathProgramCache]: Analyzing trace with hash 763776811, now seen corresponding path program 4 times [2022-11-18 20:35:48,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:48,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160049500] [2022-11-18 20:35:48,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:48,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:48,535 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:48,539 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:48,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:48,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:35:48,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:35:48,560 INFO L87 Difference]: Start difference. First operand 17370 states and 32580 transitions. cyclomatic complexity: 15244 Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 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) [2022-11-18 20:35:49,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:49,831 INFO L93 Difference]: Finished difference Result 51909 states and 97401 transitions. [2022-11-18 20:35:49,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51909 states and 97401 transitions. [2022-11-18 20:35:49,993 INFO L131 ngComponentsAnalysis]: Automaton has 99 accepting balls. 11892 [2022-11-18 20:35:50,122 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51909 states to 51909 states and 97401 transitions. [2022-11-18 20:35:50,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51852 [2022-11-18 20:35:50,150 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51852 [2022-11-18 20:35:50,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51909 states and 97401 transitions. [2022-11-18 20:35:50,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:35:50,157 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51909 states and 97401 transitions. [2022-11-18 20:35:50,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51909 states and 97401 transitions. [2022-11-18 20:35:50,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51909 to 17374. [2022-11-18 20:35:50,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17374 states, 17374 states have (on average 1.8753885115690112) internal successors, (32583), 17373 states have internal predecessors, (32583), 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) [2022-11-18 20:35:50,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17374 states to 17374 states and 32583 transitions. [2022-11-18 20:35:50,599 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17374 states and 32583 transitions. [2022-11-18 20:35:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:35:50,602 INFO L428 stractBuchiCegarLoop]: Abstraction has 17374 states and 32583 transitions. [2022-11-18 20:35:50,602 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-18 20:35:50,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17374 states and 32583 transitions. [2022-11-18 20:35:50,815 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3964 [2022-11-18 20:35:50,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:35:50,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:35:50,816 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:50,816 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:35:50,816 INFO L748 eck$LassoCheckResult]: Stem: 542736#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(10, 16);call #Ultimate.allocInit(4, 17);call write~init~int(91, 17, 0, 1);call write~init~int(95, 17, 1, 1);call write~init~int(93, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(4, 18);call write~init~int(91, 18, 0, 1);call write~init~int(93, 18, 1, 1);call write~init~int(32, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(5, 19);call write~init~int(32, 19, 0, 1);call write~init~int(97, 19, 1, 1);call write~init~int(116, 19, 2, 1);call write~init~int(32, 19, 3, 1);call write~init~int(0, 19, 4, 1);call #Ultimate.allocInit(3, 20);call write~init~int(37, 20, 0, 1);call write~init~int(105, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(3, 22);call write~init~int(117, 22, 0, 1);call write~init~int(112, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(5, 23);call write~init~int(100, 23, 0, 1);call write~init~int(111, 23, 1, 1);call write~init~int(119, 23, 2, 1);call write~init~int(110, 23, 3, 1);call write~init~int(0, 23, 4, 1);call #Ultimate.allocInit(7, 24);call write~init~int(32, 24, 0, 1);call write~init~int(73, 24, 1, 1);call write~init~int(76, 24, 2, 1);call write~init~int(95, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(4, 25);call write~init~int(32, 25, 0, 1);call write~init~int(37, 25, 1, 1);call write~init~int(105, 25, 2, 1);call write~init~int(0, 25, 3, 1);call #Ultimate.allocInit(4, 26);call write~init~int(32, 26, 0, 1);call write~init~int(37, 26, 1, 1);call write~init~int(105, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(4, 27);call write~init~int(32, 27, 0, 1);call write~init~int(37, 27, 1, 1);call write~init~int(105, 27, 2, 1);call write~init~int(0, 27, 3, 1);call #Ultimate.allocInit(4, 28);call write~init~int(32, 28, 0, 1);call write~init~int(37, 28, 1, 1);call write~init~int(105, 28, 2, 1);call write~init~int(0, 28, 3, 1);call #Ultimate.allocInit(4, 29);call write~init~int(32, 29, 0, 1);call write~init~int(37, 29, 1, 1);call write~init~int(105, 29, 2, 1);call write~init~int(0, 29, 3, 1);call #Ultimate.allocInit(6, 30);call write~init~int(32, 30, 0, 1);call write~init~int(70, 30, 1, 1);call write~init~int(95, 30, 2, 1);call write~init~int(112, 30, 3, 1);call write~init~int(58, 30, 4, 1);call write~init~int(0, 30, 5, 1);call #Ultimate.allocInit(4, 31);call write~init~int(32, 31, 0, 1);call write~init~int(37, 31, 1, 1);call write~init~int(105, 31, 2, 1);call write~init~int(0, 31, 3, 1);call #Ultimate.allocInit(4, 32);call write~init~int(32, 32, 0, 1);call write~init~int(37, 32, 1, 1);call write~init~int(105, 32, 2, 1);call write~init~int(0, 32, 3, 1);call #Ultimate.allocInit(4, 33);call write~init~int(32, 33, 0, 1);call write~init~int(37, 33, 1, 1);call write~init~int(105, 33, 2, 1);call write~init~int(0, 33, 3, 1);call #Ultimate.allocInit(4, 34);call write~init~int(32, 34, 0, 1);call write~init~int(37, 34, 1, 1);call write~init~int(105, 34, 2, 1);call write~init~int(0, 34, 3, 1);call #Ultimate.allocInit(4, 35);call write~init~int(32, 35, 0, 1);call write~init~int(37, 35, 1, 1);call write~init~int(105, 35, 2, 1);call write~init~int(0, 35, 3, 1);call #Ultimate.allocInit(2, 36);call write~init~int(10, 36, 0, 1);call write~init~int(0, 36, 1, 1);call #Ultimate.allocInit(9, 37);~doorState~0 := 1;~maximumWeight~0 := 100;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~persons_3~0 := 0;~weight~0 := 0;~persons_4~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_5~0 := 0;~persons_0~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~prevDir~0 := 0;~blocked~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~currentHeading~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~cleanupTimeShifts~0 := 12;~calls_1~0 := 0;~calls_0~0 := 0;~calls_4~0 := 0;~calls_3~0 := 0;~calls_2~0 := 0;~currentFloorID~0 := 0; 539166#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret128#1, main_~retValue_acc~27#1, main_~tmp~27#1;havoc main_~retValue_acc~27#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 539167#L2919 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 536840#L2912 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~25#1;havoc valid_product_~retValue_acc~25#1;valid_product_~retValue_acc~25#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~25#1; 536841#L2927 main_#t~ret128#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret128#1;havoc main_#t~ret128#1; 548049#L3266 assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 545995#L3243 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret117#1, aliceCall_~tmp~20#1;havoc aliceCall_~tmp~20#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 531847#L2819 assume !(0 == getOrigin_~person#1); 531848#L2823 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 538310#L2844 aliceCall_#t~ret117#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret117#1;havoc aliceCall_#t~ret117#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~20#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 538311#L2375 assume !(0 == initPersonOnFloor_~floor#1); 532811#L2402 assume !(1 == initPersonOnFloor_~floor#1); 532812#L2429 assume !(2 == initPersonOnFloor_~floor#1); 535711#L2456 assume 3 == initPersonOnFloor_~floor#1; 535712#L2457 assume !(0 == initPersonOnFloor_~person#1); 547643#L2460 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_3~0 := 1; 545123#L2483-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 542898#L2167 assume !(0 == callOnFloor_~floorID#1); 536775#L2170 assume 1 == callOnFloor_~floorID#1;~calls_1~0 := 1; 536776#L2179-2 assume { :end_inline_callOnFloor } true; 546272#L2519 assume { :end_inline_initPersonOnFloor } true; 546989#L3004 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;havoc angelinaCall_~tmp~21#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 536449#L2819-1 assume !(0 == getOrigin_~person#1); 536450#L2823-1 assume !(1 == getOrigin_~person#1); 540963#L2827-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 542975#L2844-1 angelinaCall_#t~ret118#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret118#1;havoc angelinaCall_#t~ret118#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~21#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 548195#L2375-1 assume 0 == initPersonOnFloor_~floor#1; 545511#L2376-2 assume !(0 == initPersonOnFloor_~person#1); 545512#L2379-2 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_0~0 := 1; 538488#L2483-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 547092#L2167-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 539275#L2179-5 assume { :end_inline_callOnFloor } true; 539276#L2519-1 assume { :end_inline_initPersonOnFloor } true; 545711#L3015 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret79#1, timeShift_~tmp~14#1;havoc timeShift_~tmp~14#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;havoc getCurrentHeading_~retValue_acc~7#1;getCurrentHeading_~retValue_acc~7#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~7#1; 538978#L738 __utac_acc__Specification13_spec__1_#t~ret129#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret129#1;havoc __utac_acc__Specification13_spec__1_#t~ret129#1; 535663#L3288 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;havoc areDoorsOpen_~retValue_acc~5#1;areDoorsOpen_~retValue_acc~5#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~5#1; 535664#L695 timeShift_#t~ret79#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~14#1 := timeShift_#t~ret79#1;havoc timeShift_#t~ret79#1; 545065#L1647 assume 0 != timeShift_~tmp~14#1; 545066#L1648 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 547134#L1647-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret130#1, __utac_acc__Specification13_spec__2_#t~ret131#1, __utac_acc__Specification13_spec__2_#t~ret132#1, __utac_acc__Specification13_spec__2_#t~ret133#1, __utac_acc__Specification13_spec__2_#t~ret134#1, __utac_acc__Specification13_spec__2_#t~ret135#1, __utac_acc__Specification13_spec__2_~tmp~28#1, __utac_acc__Specification13_spec__2_~tmp___0~11#1, __utac_acc__Specification13_spec__2_~tmp___1~8#1, __utac_acc__Specification13_spec__2_~tmp___2~6#1, __utac_acc__Specification13_spec__2_~tmp___3~5#1, __utac_acc__Specification13_spec__2_~tmp___4~3#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;havoc __utac_acc__Specification13_spec__2_~tmp~28#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~11#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~8#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~6#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~5#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~3#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~7#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3); 547238#L3305 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1; 545618#L3306 assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~17#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~17#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 536190#L1867 assume !(1 == existInLiftCallsInDirection_~d#1); 536191#L1933 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 534447#L1937-2 [2022-11-18 20:35:50,817 INFO L750 eck$LassoCheckResult]: Loop: 534447#L1937-2 assume !false; 534448#L1938 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 536092#L1939 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 538034#L1946-2 assume !false; 537307#L1947 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 537309#L2005 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 534447#L1937-2 [2022-11-18 20:35:50,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:50,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1673489519, now seen corresponding path program 1 times [2022-11-18 20:35:50,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:50,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962167052] [2022-11-18 20:35:50,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:50,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:50,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:50,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:50,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962167052] [2022-11-18 20:35:50,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962167052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:50,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:50,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:35:50,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130764120] [2022-11-18 20:35:50,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:50,907 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:35:50,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:50,908 INFO L85 PathProgramCache]: Analyzing trace with hash 763776811, now seen corresponding path program 5 times [2022-11-18 20:35:50,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:50,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984756967] [2022-11-18 20:35:50,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:50,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:50,913 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:50,918 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:50,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:50,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:35:50,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:35:50,938 INFO L87 Difference]: Start difference. First operand 17374 states and 32583 transitions. cyclomatic complexity: 15243 Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:35:52,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:52,320 INFO L93 Difference]: Finished difference Result 51914 states and 97403 transitions. [2022-11-18 20:35:52,320 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51914 states and 97403 transitions. [2022-11-18 20:35:52,480 INFO L131 ngComponentsAnalysis]: Automaton has 99 accepting balls. 11892 [2022-11-18 20:35:52,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51914 states to 51914 states and 97403 transitions. [2022-11-18 20:35:52,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51857 [2022-11-18 20:35:52,632 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51857 [2022-11-18 20:35:52,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51914 states and 97403 transitions. [2022-11-18 20:35:52,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:35:52,633 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51914 states and 97403 transitions. [2022-11-18 20:35:52,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51914 states and 97403 transitions. [2022-11-18 20:35:52,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51914 to 17380. [2022-11-18 20:35:52,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17380 states, 17380 states have (on average 1.8750287686996547) internal successors, (32588), 17379 states have internal predecessors, (32588), 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) [2022-11-18 20:35:53,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17380 states to 17380 states and 32588 transitions. [2022-11-18 20:35:53,013 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17380 states and 32588 transitions. [2022-11-18 20:35:53,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:35:53,014 INFO L428 stractBuchiCegarLoop]: Abstraction has 17380 states and 32588 transitions. [2022-11-18 20:35:53,014 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-18 20:35:53,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17380 states and 32588 transitions. [2022-11-18 20:35:53,059 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3964 [2022-11-18 20:35:53,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:35:53,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:35:53,060 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:53,060 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:35:53,060 INFO L748 eck$LassoCheckResult]: Stem: 612034#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(10, 16);call #Ultimate.allocInit(4, 17);call write~init~int(91, 17, 0, 1);call write~init~int(95, 17, 1, 1);call write~init~int(93, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(4, 18);call write~init~int(91, 18, 0, 1);call write~init~int(93, 18, 1, 1);call write~init~int(32, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(5, 19);call write~init~int(32, 19, 0, 1);call write~init~int(97, 19, 1, 1);call write~init~int(116, 19, 2, 1);call write~init~int(32, 19, 3, 1);call write~init~int(0, 19, 4, 1);call #Ultimate.allocInit(3, 20);call write~init~int(37, 20, 0, 1);call write~init~int(105, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(3, 22);call write~init~int(117, 22, 0, 1);call write~init~int(112, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(5, 23);call write~init~int(100, 23, 0, 1);call write~init~int(111, 23, 1, 1);call write~init~int(119, 23, 2, 1);call write~init~int(110, 23, 3, 1);call write~init~int(0, 23, 4, 1);call #Ultimate.allocInit(7, 24);call write~init~int(32, 24, 0, 1);call write~init~int(73, 24, 1, 1);call write~init~int(76, 24, 2, 1);call write~init~int(95, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(4, 25);call write~init~int(32, 25, 0, 1);call write~init~int(37, 25, 1, 1);call write~init~int(105, 25, 2, 1);call write~init~int(0, 25, 3, 1);call #Ultimate.allocInit(4, 26);call write~init~int(32, 26, 0, 1);call write~init~int(37, 26, 1, 1);call write~init~int(105, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(4, 27);call write~init~int(32, 27, 0, 1);call write~init~int(37, 27, 1, 1);call write~init~int(105, 27, 2, 1);call write~init~int(0, 27, 3, 1);call #Ultimate.allocInit(4, 28);call write~init~int(32, 28, 0, 1);call write~init~int(37, 28, 1, 1);call write~init~int(105, 28, 2, 1);call write~init~int(0, 28, 3, 1);call #Ultimate.allocInit(4, 29);call write~init~int(32, 29, 0, 1);call write~init~int(37, 29, 1, 1);call write~init~int(105, 29, 2, 1);call write~init~int(0, 29, 3, 1);call #Ultimate.allocInit(6, 30);call write~init~int(32, 30, 0, 1);call write~init~int(70, 30, 1, 1);call write~init~int(95, 30, 2, 1);call write~init~int(112, 30, 3, 1);call write~init~int(58, 30, 4, 1);call write~init~int(0, 30, 5, 1);call #Ultimate.allocInit(4, 31);call write~init~int(32, 31, 0, 1);call write~init~int(37, 31, 1, 1);call write~init~int(105, 31, 2, 1);call write~init~int(0, 31, 3, 1);call #Ultimate.allocInit(4, 32);call write~init~int(32, 32, 0, 1);call write~init~int(37, 32, 1, 1);call write~init~int(105, 32, 2, 1);call write~init~int(0, 32, 3, 1);call #Ultimate.allocInit(4, 33);call write~init~int(32, 33, 0, 1);call write~init~int(37, 33, 1, 1);call write~init~int(105, 33, 2, 1);call write~init~int(0, 33, 3, 1);call #Ultimate.allocInit(4, 34);call write~init~int(32, 34, 0, 1);call write~init~int(37, 34, 1, 1);call write~init~int(105, 34, 2, 1);call write~init~int(0, 34, 3, 1);call #Ultimate.allocInit(4, 35);call write~init~int(32, 35, 0, 1);call write~init~int(37, 35, 1, 1);call write~init~int(105, 35, 2, 1);call write~init~int(0, 35, 3, 1);call #Ultimate.allocInit(2, 36);call write~init~int(10, 36, 0, 1);call write~init~int(0, 36, 1, 1);call #Ultimate.allocInit(9, 37);~doorState~0 := 1;~maximumWeight~0 := 100;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~persons_3~0 := 0;~weight~0 := 0;~persons_4~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_5~0 := 0;~persons_0~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~prevDir~0 := 0;~blocked~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~currentHeading~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~cleanupTimeShifts~0 := 12;~calls_1~0 := 0;~calls_0~0 := 0;~calls_4~0 := 0;~calls_3~0 := 0;~calls_2~0 := 0;~currentFloorID~0 := 0; 608463#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret128#1, main_~retValue_acc~27#1, main_~tmp~27#1;havoc main_~retValue_acc~27#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 608464#L2919 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 606137#L2912 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~25#1;havoc valid_product_~retValue_acc~25#1;valid_product_~retValue_acc~25#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~25#1; 606138#L2927 main_#t~ret128#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret128#1;havoc main_#t~ret128#1; 617348#L3266 assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 615294#L3243 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret117#1, aliceCall_~tmp~20#1;havoc aliceCall_~tmp~20#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 601144#L2819 assume !(0 == getOrigin_~person#1); 601145#L2823 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 607607#L2844 aliceCall_#t~ret117#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret117#1;havoc aliceCall_#t~ret117#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~20#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 607608#L2375 assume !(0 == initPersonOnFloor_~floor#1); 602109#L2402 assume !(1 == initPersonOnFloor_~floor#1); 602110#L2429 assume !(2 == initPersonOnFloor_~floor#1); 605009#L2456 assume 3 == initPersonOnFloor_~floor#1; 605010#L2457 assume !(0 == initPersonOnFloor_~person#1); 616942#L2460 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_3~0 := 1; 614422#L2483-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 612196#L2167 assume !(0 == callOnFloor_~floorID#1); 606073#L2170 assume !(1 == callOnFloor_~floorID#1); 606074#L2173 assume 2 == callOnFloor_~floorID#1;~calls_2~0 := 1; 613137#L2179-2 assume { :end_inline_callOnFloor } true; 615571#L2519 assume { :end_inline_initPersonOnFloor } true; 616287#L3004 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;havoc angelinaCall_~tmp~21#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 605747#L2819-1 assume !(0 == getOrigin_~person#1); 605748#L2823-1 assume !(1 == getOrigin_~person#1); 610261#L2827-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 612273#L2844-1 angelinaCall_#t~ret118#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret118#1;havoc angelinaCall_#t~ret118#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~21#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 617496#L2375-1 assume 0 == initPersonOnFloor_~floor#1; 614810#L2376-2 assume !(0 == initPersonOnFloor_~person#1); 614811#L2379-2 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_0~0 := 1; 607785#L2483-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 617503#L2167-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 608572#L2179-5 assume { :end_inline_callOnFloor } true; 608573#L2519-1 assume { :end_inline_initPersonOnFloor } true; 615010#L3015 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret79#1, timeShift_~tmp~14#1;havoc timeShift_~tmp~14#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;havoc getCurrentHeading_~retValue_acc~7#1;getCurrentHeading_~retValue_acc~7#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~7#1; 608275#L738 __utac_acc__Specification13_spec__1_#t~ret129#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret129#1;havoc __utac_acc__Specification13_spec__1_#t~ret129#1; 604961#L3288 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;havoc areDoorsOpen_~retValue_acc~5#1;areDoorsOpen_~retValue_acc~5#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~5#1; 604962#L695 timeShift_#t~ret79#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~14#1 := timeShift_#t~ret79#1;havoc timeShift_#t~ret79#1; 614364#L1647 assume 0 != timeShift_~tmp~14#1; 614365#L1648 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 616432#L1647-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret130#1, __utac_acc__Specification13_spec__2_#t~ret131#1, __utac_acc__Specification13_spec__2_#t~ret132#1, __utac_acc__Specification13_spec__2_#t~ret133#1, __utac_acc__Specification13_spec__2_#t~ret134#1, __utac_acc__Specification13_spec__2_#t~ret135#1, __utac_acc__Specification13_spec__2_~tmp~28#1, __utac_acc__Specification13_spec__2_~tmp___0~11#1, __utac_acc__Specification13_spec__2_~tmp___1~8#1, __utac_acc__Specification13_spec__2_~tmp___2~6#1, __utac_acc__Specification13_spec__2_~tmp___3~5#1, __utac_acc__Specification13_spec__2_~tmp___4~3#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;havoc __utac_acc__Specification13_spec__2_~tmp~28#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~11#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~8#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~6#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~5#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~3#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~7#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3); 616537#L3305 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1; 614917#L3306 assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~17#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~17#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 605488#L1867 assume !(1 == existInLiftCallsInDirection_~d#1); 605489#L1933 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 603745#L1937-2 [2022-11-18 20:35:53,061 INFO L750 eck$LassoCheckResult]: Loop: 603745#L1937-2 assume !false; 603746#L1938 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 605390#L1939 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 607331#L1946-2 assume !false; 606604#L1947 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 606606#L2005 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 603745#L1937-2 [2022-11-18 20:35:53,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:53,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1655087567, now seen corresponding path program 1 times [2022-11-18 20:35:53,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:53,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731273663] [2022-11-18 20:35:53,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:53,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:53,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:53,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:53,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731273663] [2022-11-18 20:35:53,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731273663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:53,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:53,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:35:53,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710200993] [2022-11-18 20:35:53,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:53,133 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:35:53,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:53,133 INFO L85 PathProgramCache]: Analyzing trace with hash 763776811, now seen corresponding path program 6 times [2022-11-18 20:35:53,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:53,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373580237] [2022-11-18 20:35:53,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:53,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:53,138 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:53,142 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:53,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:53,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:35:53,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:35:53,161 INFO L87 Difference]: Start difference. First operand 17380 states and 32588 transitions. cyclomatic complexity: 15242 Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:35:54,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:54,312 INFO L93 Difference]: Finished difference Result 51921 states and 97407 transitions. [2022-11-18 20:35:54,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51921 states and 97407 transitions. [2022-11-18 20:35:54,479 INFO L131 ngComponentsAnalysis]: Automaton has 99 accepting balls. 11892 [2022-11-18 20:35:54,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51921 states to 51921 states and 97407 transitions. [2022-11-18 20:35:54,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51864 [2022-11-18 20:35:54,631 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51864 [2022-11-18 20:35:54,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51921 states and 97407 transitions. [2022-11-18 20:35:54,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:35:54,645 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51921 states and 97407 transitions. [2022-11-18 20:35:54,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51921 states and 97407 transitions. [2022-11-18 20:35:54,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51921 to 17388. [2022-11-18 20:35:54,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17388 states, 17388 states have (on average 1.874568668046929) internal successors, (32595), 17387 states have internal predecessors, (32595), 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) [2022-11-18 20:35:54,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17388 states to 17388 states and 32595 transitions. [2022-11-18 20:35:54,978 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17388 states and 32595 transitions. [2022-11-18 20:35:54,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:35:54,979 INFO L428 stractBuchiCegarLoop]: Abstraction has 17388 states and 32595 transitions. [2022-11-18 20:35:54,979 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-18 20:35:54,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17388 states and 32595 transitions. [2022-11-18 20:35:55,021 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3964 [2022-11-18 20:35:55,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:35:55,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:35:55,022 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:55,022 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:35:55,022 INFO L748 eck$LassoCheckResult]: Stem: 681346#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(10, 16);call #Ultimate.allocInit(4, 17);call write~init~int(91, 17, 0, 1);call write~init~int(95, 17, 1, 1);call write~init~int(93, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(4, 18);call write~init~int(91, 18, 0, 1);call write~init~int(93, 18, 1, 1);call write~init~int(32, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(5, 19);call write~init~int(32, 19, 0, 1);call write~init~int(97, 19, 1, 1);call write~init~int(116, 19, 2, 1);call write~init~int(32, 19, 3, 1);call write~init~int(0, 19, 4, 1);call #Ultimate.allocInit(3, 20);call write~init~int(37, 20, 0, 1);call write~init~int(105, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(3, 22);call write~init~int(117, 22, 0, 1);call write~init~int(112, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(5, 23);call write~init~int(100, 23, 0, 1);call write~init~int(111, 23, 1, 1);call write~init~int(119, 23, 2, 1);call write~init~int(110, 23, 3, 1);call write~init~int(0, 23, 4, 1);call #Ultimate.allocInit(7, 24);call write~init~int(32, 24, 0, 1);call write~init~int(73, 24, 1, 1);call write~init~int(76, 24, 2, 1);call write~init~int(95, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(4, 25);call write~init~int(32, 25, 0, 1);call write~init~int(37, 25, 1, 1);call write~init~int(105, 25, 2, 1);call write~init~int(0, 25, 3, 1);call #Ultimate.allocInit(4, 26);call write~init~int(32, 26, 0, 1);call write~init~int(37, 26, 1, 1);call write~init~int(105, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(4, 27);call write~init~int(32, 27, 0, 1);call write~init~int(37, 27, 1, 1);call write~init~int(105, 27, 2, 1);call write~init~int(0, 27, 3, 1);call #Ultimate.allocInit(4, 28);call write~init~int(32, 28, 0, 1);call write~init~int(37, 28, 1, 1);call write~init~int(105, 28, 2, 1);call write~init~int(0, 28, 3, 1);call #Ultimate.allocInit(4, 29);call write~init~int(32, 29, 0, 1);call write~init~int(37, 29, 1, 1);call write~init~int(105, 29, 2, 1);call write~init~int(0, 29, 3, 1);call #Ultimate.allocInit(6, 30);call write~init~int(32, 30, 0, 1);call write~init~int(70, 30, 1, 1);call write~init~int(95, 30, 2, 1);call write~init~int(112, 30, 3, 1);call write~init~int(58, 30, 4, 1);call write~init~int(0, 30, 5, 1);call #Ultimate.allocInit(4, 31);call write~init~int(32, 31, 0, 1);call write~init~int(37, 31, 1, 1);call write~init~int(105, 31, 2, 1);call write~init~int(0, 31, 3, 1);call #Ultimate.allocInit(4, 32);call write~init~int(32, 32, 0, 1);call write~init~int(37, 32, 1, 1);call write~init~int(105, 32, 2, 1);call write~init~int(0, 32, 3, 1);call #Ultimate.allocInit(4, 33);call write~init~int(32, 33, 0, 1);call write~init~int(37, 33, 1, 1);call write~init~int(105, 33, 2, 1);call write~init~int(0, 33, 3, 1);call #Ultimate.allocInit(4, 34);call write~init~int(32, 34, 0, 1);call write~init~int(37, 34, 1, 1);call write~init~int(105, 34, 2, 1);call write~init~int(0, 34, 3, 1);call #Ultimate.allocInit(4, 35);call write~init~int(32, 35, 0, 1);call write~init~int(37, 35, 1, 1);call write~init~int(105, 35, 2, 1);call write~init~int(0, 35, 3, 1);call #Ultimate.allocInit(2, 36);call write~init~int(10, 36, 0, 1);call write~init~int(0, 36, 1, 1);call #Ultimate.allocInit(9, 37);~doorState~0 := 1;~maximumWeight~0 := 100;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~persons_3~0 := 0;~weight~0 := 0;~persons_4~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_5~0 := 0;~persons_0~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~prevDir~0 := 0;~blocked~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~currentHeading~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~cleanupTimeShifts~0 := 12;~calls_1~0 := 0;~calls_0~0 := 0;~calls_4~0 := 0;~calls_3~0 := 0;~calls_2~0 := 0;~currentFloorID~0 := 0; 677773#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret128#1, main_~retValue_acc~27#1, main_~tmp~27#1;havoc main_~retValue_acc~27#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 677774#L2919 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 675449#L2912 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~25#1;havoc valid_product_~retValue_acc~25#1;valid_product_~retValue_acc~25#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~25#1; 675450#L2927 main_#t~ret128#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret128#1;havoc main_#t~ret128#1; 686662#L3266 assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 684607#L3243 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret117#1, aliceCall_~tmp~20#1;havoc aliceCall_~tmp~20#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 670454#L2819 assume !(0 == getOrigin_~person#1); 670455#L2823 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 676917#L2844 aliceCall_#t~ret117#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret117#1;havoc aliceCall_#t~ret117#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~20#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 676918#L2375 assume !(0 == initPersonOnFloor_~floor#1); 671419#L2402 assume !(1 == initPersonOnFloor_~floor#1); 671420#L2429 assume !(2 == initPersonOnFloor_~floor#1); 674319#L2456 assume 3 == initPersonOnFloor_~floor#1; 674320#L2457 assume !(0 == initPersonOnFloor_~person#1); 686256#L2460 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_3~0 := 1; 683735#L2483-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 681508#L2167 assume !(0 == callOnFloor_~floorID#1); 675383#L2170 assume !(1 == callOnFloor_~floorID#1); 675384#L2173 assume !(2 == callOnFloor_~floorID#1); 684396#L2176 assume 3 == callOnFloor_~floorID#1;~calls_3~0 := 1; 682449#L2179-2 assume { :end_inline_callOnFloor } true; 684884#L2519 assume { :end_inline_initPersonOnFloor } true; 685602#L3004 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;havoc angelinaCall_~tmp~21#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 675057#L2819-1 assume !(0 == getOrigin_~person#1); 675058#L2823-1 assume !(1 == getOrigin_~person#1); 679572#L2827-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 681585#L2844-1 angelinaCall_#t~ret118#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret118#1;havoc angelinaCall_#t~ret118#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~21#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 686808#L2375-1 assume 0 == initPersonOnFloor_~floor#1; 684123#L2376-2 assume !(0 == initPersonOnFloor_~person#1); 684124#L2379-2 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_0~0 := 1; 677095#L2483-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 686819#L2167-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 677882#L2179-5 assume { :end_inline_callOnFloor } true; 677883#L2519-1 assume { :end_inline_initPersonOnFloor } true; 684323#L3015 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret79#1, timeShift_~tmp~14#1;havoc timeShift_~tmp~14#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;havoc getCurrentHeading_~retValue_acc~7#1;getCurrentHeading_~retValue_acc~7#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~7#1; 677585#L738 __utac_acc__Specification13_spec__1_#t~ret129#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret129#1;havoc __utac_acc__Specification13_spec__1_#t~ret129#1; 674271#L3288 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;havoc areDoorsOpen_~retValue_acc~5#1;areDoorsOpen_~retValue_acc~5#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~5#1; 674272#L695 timeShift_#t~ret79#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~14#1 := timeShift_#t~ret79#1;havoc timeShift_#t~ret79#1; 683677#L1647 assume 0 != timeShift_~tmp~14#1; 683678#L1648 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 685747#L1647-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret130#1, __utac_acc__Specification13_spec__2_#t~ret131#1, __utac_acc__Specification13_spec__2_#t~ret132#1, __utac_acc__Specification13_spec__2_#t~ret133#1, __utac_acc__Specification13_spec__2_#t~ret134#1, __utac_acc__Specification13_spec__2_#t~ret135#1, __utac_acc__Specification13_spec__2_~tmp~28#1, __utac_acc__Specification13_spec__2_~tmp___0~11#1, __utac_acc__Specification13_spec__2_~tmp___1~8#1, __utac_acc__Specification13_spec__2_~tmp___2~6#1, __utac_acc__Specification13_spec__2_~tmp___3~5#1, __utac_acc__Specification13_spec__2_~tmp___4~3#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;havoc __utac_acc__Specification13_spec__2_~tmp~28#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~11#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~8#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~6#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~5#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~3#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~7#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3); 685851#L3305 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1; 684230#L3306 assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~17#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~17#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 674798#L1867 assume !(1 == existInLiftCallsInDirection_~d#1); 674799#L1933 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 673054#L1937-2 [2022-11-18 20:35:55,023 INFO L750 eck$LassoCheckResult]: Loop: 673054#L1937-2 assume !false; 673055#L1938 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 674700#L1939 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 676642#L1946-2 assume !false; 675914#L1947 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 675916#L2005 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 673054#L1937-2 [2022-11-18 20:35:55,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:55,023 INFO L85 PathProgramCache]: Analyzing trace with hash -929528020, now seen corresponding path program 1 times [2022-11-18 20:35:55,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:55,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182651800] [2022-11-18 20:35:55,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:55,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:55,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:55,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:55,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182651800] [2022-11-18 20:35:55,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182651800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:55,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:55,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:35:55,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197934590] [2022-11-18 20:35:55,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:55,133 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:35:55,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:55,134 INFO L85 PathProgramCache]: Analyzing trace with hash 763776811, now seen corresponding path program 7 times [2022-11-18 20:35:55,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:55,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925549806] [2022-11-18 20:35:55,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:55,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:55,138 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:55,142 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:55,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:55,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:35:55,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:35:55,161 INFO L87 Difference]: Start difference. First operand 17388 states and 32595 transitions. cyclomatic complexity: 15241 Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2022-11-18 20:35:56,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:56,081 INFO L93 Difference]: Finished difference Result 38204 states and 71648 transitions. [2022-11-18 20:35:56,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38204 states and 71648 transitions. [2022-11-18 20:35:56,205 INFO L131 ngComponentsAnalysis]: Automaton has 60 accepting balls. 14764 [2022-11-18 20:35:56,535 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38204 states to 38204 states and 71648 transitions. [2022-11-18 20:35:56,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38185 [2022-11-18 20:35:56,554 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38185 [2022-11-18 20:35:56,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38204 states and 71648 transitions. [2022-11-18 20:35:56,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:35:56,557 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38204 states and 71648 transitions. [2022-11-18 20:35:56,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38204 states and 71648 transitions. [2022-11-18 20:35:56,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38204 to 17374. [2022-11-18 20:35:56,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17374 states, 17374 states have (on average 1.8745827097962473) internal successors, (32569), 17373 states have internal predecessors, (32569), 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) [2022-11-18 20:35:56,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17374 states to 17374 states and 32569 transitions. [2022-11-18 20:35:56,854 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17374 states and 32569 transitions. [2022-11-18 20:35:56,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:35:56,854 INFO L428 stractBuchiCegarLoop]: Abstraction has 17374 states and 32569 transitions. [2022-11-18 20:35:56,855 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-11-18 20:35:56,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17374 states and 32569 transitions. [2022-11-18 20:35:56,913 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3964 [2022-11-18 20:35:56,913 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:35:56,913 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:35:56,913 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:56,914 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:35:56,914 INFO L748 eck$LassoCheckResult]: Stem: 736950#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(10, 16);call #Ultimate.allocInit(4, 17);call write~init~int(91, 17, 0, 1);call write~init~int(95, 17, 1, 1);call write~init~int(93, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(4, 18);call write~init~int(91, 18, 0, 1);call write~init~int(93, 18, 1, 1);call write~init~int(32, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(5, 19);call write~init~int(32, 19, 0, 1);call write~init~int(97, 19, 1, 1);call write~init~int(116, 19, 2, 1);call write~init~int(32, 19, 3, 1);call write~init~int(0, 19, 4, 1);call #Ultimate.allocInit(3, 20);call write~init~int(37, 20, 0, 1);call write~init~int(105, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(3, 22);call write~init~int(117, 22, 0, 1);call write~init~int(112, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(5, 23);call write~init~int(100, 23, 0, 1);call write~init~int(111, 23, 1, 1);call write~init~int(119, 23, 2, 1);call write~init~int(110, 23, 3, 1);call write~init~int(0, 23, 4, 1);call #Ultimate.allocInit(7, 24);call write~init~int(32, 24, 0, 1);call write~init~int(73, 24, 1, 1);call write~init~int(76, 24, 2, 1);call write~init~int(95, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(4, 25);call write~init~int(32, 25, 0, 1);call write~init~int(37, 25, 1, 1);call write~init~int(105, 25, 2, 1);call write~init~int(0, 25, 3, 1);call #Ultimate.allocInit(4, 26);call write~init~int(32, 26, 0, 1);call write~init~int(37, 26, 1, 1);call write~init~int(105, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(4, 27);call write~init~int(32, 27, 0, 1);call write~init~int(37, 27, 1, 1);call write~init~int(105, 27, 2, 1);call write~init~int(0, 27, 3, 1);call #Ultimate.allocInit(4, 28);call write~init~int(32, 28, 0, 1);call write~init~int(37, 28, 1, 1);call write~init~int(105, 28, 2, 1);call write~init~int(0, 28, 3, 1);call #Ultimate.allocInit(4, 29);call write~init~int(32, 29, 0, 1);call write~init~int(37, 29, 1, 1);call write~init~int(105, 29, 2, 1);call write~init~int(0, 29, 3, 1);call #Ultimate.allocInit(6, 30);call write~init~int(32, 30, 0, 1);call write~init~int(70, 30, 1, 1);call write~init~int(95, 30, 2, 1);call write~init~int(112, 30, 3, 1);call write~init~int(58, 30, 4, 1);call write~init~int(0, 30, 5, 1);call #Ultimate.allocInit(4, 31);call write~init~int(32, 31, 0, 1);call write~init~int(37, 31, 1, 1);call write~init~int(105, 31, 2, 1);call write~init~int(0, 31, 3, 1);call #Ultimate.allocInit(4, 32);call write~init~int(32, 32, 0, 1);call write~init~int(37, 32, 1, 1);call write~init~int(105, 32, 2, 1);call write~init~int(0, 32, 3, 1);call #Ultimate.allocInit(4, 33);call write~init~int(32, 33, 0, 1);call write~init~int(37, 33, 1, 1);call write~init~int(105, 33, 2, 1);call write~init~int(0, 33, 3, 1);call #Ultimate.allocInit(4, 34);call write~init~int(32, 34, 0, 1);call write~init~int(37, 34, 1, 1);call write~init~int(105, 34, 2, 1);call write~init~int(0, 34, 3, 1);call #Ultimate.allocInit(4, 35);call write~init~int(32, 35, 0, 1);call write~init~int(37, 35, 1, 1);call write~init~int(105, 35, 2, 1);call write~init~int(0, 35, 3, 1);call #Ultimate.allocInit(2, 36);call write~init~int(10, 36, 0, 1);call write~init~int(0, 36, 1, 1);call #Ultimate.allocInit(9, 37);~doorState~0 := 1;~maximumWeight~0 := 100;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~persons_3~0 := 0;~weight~0 := 0;~persons_4~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_5~0 := 0;~persons_0~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~prevDir~0 := 0;~blocked~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~currentHeading~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~cleanupTimeShifts~0 := 12;~calls_1~0 := 0;~calls_0~0 := 0;~calls_4~0 := 0;~calls_3~0 := 0;~calls_2~0 := 0;~currentFloorID~0 := 0; 733380#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret128#1, main_~retValue_acc~27#1, main_~tmp~27#1;havoc main_~retValue_acc~27#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 733381#L2919 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 731056#L2912 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~25#1;havoc valid_product_~retValue_acc~25#1;valid_product_~retValue_acc~25#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~25#1; 731057#L2927 main_#t~ret128#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret128#1;havoc main_#t~ret128#1; 742262#L3266 assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 740207#L3243 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret117#1, aliceCall_~tmp~20#1;havoc aliceCall_~tmp~20#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 726062#L2819 assume !(0 == getOrigin_~person#1); 726063#L2823 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 732526#L2844 aliceCall_#t~ret117#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret117#1;havoc aliceCall_#t~ret117#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~20#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 732527#L2375 assume !(0 == initPersonOnFloor_~floor#1); 727027#L2402 assume !(1 == initPersonOnFloor_~floor#1); 727028#L2429 assume !(2 == initPersonOnFloor_~floor#1); 729928#L2456 assume 3 == initPersonOnFloor_~floor#1; 729929#L2457 assume !(0 == initPersonOnFloor_~person#1); 741855#L2460 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_3~0 := 1; 739335#L2483-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 737111#L2167 assume !(0 == callOnFloor_~floorID#1); 730992#L2170 assume !(1 == callOnFloor_~floorID#1); 730993#L2173 assume !(2 == callOnFloor_~floorID#1); 739994#L2176 assume 3 == callOnFloor_~floorID#1;~calls_3~0 := 1; 738051#L2179-2 assume { :end_inline_callOnFloor } true; 740484#L2519 assume { :end_inline_initPersonOnFloor } true; 741199#L3004 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;havoc angelinaCall_~tmp~21#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 730666#L2819-1 assume !(0 == getOrigin_~person#1); 730667#L2823-1 assume !(1 == getOrigin_~person#1); 735177#L2827-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 737188#L2844-1 angelinaCall_#t~ret118#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret118#1;havoc angelinaCall_#t~ret118#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~21#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 737066#L2375-1 assume !(0 == initPersonOnFloor_~floor#1); 732912#L2402-1 assume 1 == initPersonOnFloor_~floor#1; 732913#L2403-2 assume !(0 == initPersonOnFloor_~person#1); 733509#L2406-2 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_1~0 := 1; 726606#L2483-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 742408#L2167-2 assume !(0 == callOnFloor_~floorID#1); 742406#L2170-2 assume 1 == callOnFloor_~floorID#1;~calls_1~0 := 1; 733489#L2179-5 assume { :end_inline_callOnFloor } true; 733490#L2519-1 assume { :end_inline_initPersonOnFloor } true; 739921#L3015 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret79#1, timeShift_~tmp~14#1;havoc timeShift_~tmp~14#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;havoc getCurrentHeading_~retValue_acc~7#1;getCurrentHeading_~retValue_acc~7#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~7#1; 733192#L738 __utac_acc__Specification13_spec__1_#t~ret129#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret129#1;havoc __utac_acc__Specification13_spec__1_#t~ret129#1; 729880#L3288 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;havoc areDoorsOpen_~retValue_acc~5#1;areDoorsOpen_~retValue_acc~5#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~5#1; 729881#L695 timeShift_#t~ret79#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~14#1 := timeShift_#t~ret79#1;havoc timeShift_#t~ret79#1; 739277#L1647 assume 0 != timeShift_~tmp~14#1; 739278#L1648 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 741346#L1647-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret130#1, __utac_acc__Specification13_spec__2_#t~ret131#1, __utac_acc__Specification13_spec__2_#t~ret132#1, __utac_acc__Specification13_spec__2_#t~ret133#1, __utac_acc__Specification13_spec__2_#t~ret134#1, __utac_acc__Specification13_spec__2_#t~ret135#1, __utac_acc__Specification13_spec__2_~tmp~28#1, __utac_acc__Specification13_spec__2_~tmp___0~11#1, __utac_acc__Specification13_spec__2_~tmp___1~8#1, __utac_acc__Specification13_spec__2_~tmp___2~6#1, __utac_acc__Specification13_spec__2_~tmp___3~5#1, __utac_acc__Specification13_spec__2_~tmp___4~3#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;havoc __utac_acc__Specification13_spec__2_~tmp~28#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~11#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~8#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~6#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~5#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~3#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~7#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3); 741450#L3305 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1; 739828#L3306 assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~17#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~17#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 730407#L1867 assume !(1 == existInLiftCallsInDirection_~d#1); 730408#L1933 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 728663#L1937-2 [2022-11-18 20:35:56,915 INFO L750 eck$LassoCheckResult]: Loop: 728663#L1937-2 assume !false; 728664#L1938 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 730309#L1939 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 732250#L1946-2 assume !false; 731523#L1947 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 731525#L2005 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 728663#L1937-2 [2022-11-18 20:35:56,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:56,915 INFO L85 PathProgramCache]: Analyzing trace with hash 897706626, now seen corresponding path program 1 times [2022-11-18 20:35:56,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:56,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311265241] [2022-11-18 20:35:56,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:56,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:57,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:57,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:57,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311265241] [2022-11-18 20:35:57,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311265241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:57,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:57,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:35:57,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493071216] [2022-11-18 20:35:57,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:57,044 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:35:57,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:57,044 INFO L85 PathProgramCache]: Analyzing trace with hash 763776811, now seen corresponding path program 8 times [2022-11-18 20:35:57,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:57,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720154833] [2022-11-18 20:35:57,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:57,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:57,049 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:57,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:57,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:57,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:35:57,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:35:57,076 INFO L87 Difference]: Start difference. First operand 17374 states and 32569 transitions. cyclomatic complexity: 15229 Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:35:58,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:58,280 INFO L93 Difference]: Finished difference Result 38178 states and 71599 transitions. [2022-11-18 20:35:58,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38178 states and 71599 transitions. [2022-11-18 20:35:58,398 INFO L131 ngComponentsAnalysis]: Automaton has 60 accepting balls. 14764 [2022-11-18 20:35:58,486 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38178 states to 38178 states and 71599 transitions. [2022-11-18 20:35:58,486 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38159 [2022-11-18 20:35:58,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38159 [2022-11-18 20:35:58,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38178 states and 71599 transitions. [2022-11-18 20:35:58,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:35:58,507 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38178 states and 71599 transitions. [2022-11-18 20:35:58,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38178 states and 71599 transitions. [2022-11-18 20:35:58,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38178 to 17368. [2022-11-18 20:35:58,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17368 states, 17368 states have (on average 1.8744818056195303) internal successors, (32556), 17367 states have internal predecessors, (32556), 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) [2022-11-18 20:35:58,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17368 states to 17368 states and 32556 transitions. [2022-11-18 20:35:58,751 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17368 states and 32556 transitions. [2022-11-18 20:35:58,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:35:58,751 INFO L428 stractBuchiCegarLoop]: Abstraction has 17368 states and 32556 transitions. [2022-11-18 20:35:58,752 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-11-18 20:35:58,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17368 states and 32556 transitions. [2022-11-18 20:35:58,795 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3964 [2022-11-18 20:35:58,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:35:58,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:35:58,795 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:58,795 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:35:58,796 INFO L748 eck$LassoCheckResult]: Stem: 792511#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(10, 16);call #Ultimate.allocInit(4, 17);call write~init~int(91, 17, 0, 1);call write~init~int(95, 17, 1, 1);call write~init~int(93, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(4, 18);call write~init~int(91, 18, 0, 1);call write~init~int(93, 18, 1, 1);call write~init~int(32, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(5, 19);call write~init~int(32, 19, 0, 1);call write~init~int(97, 19, 1, 1);call write~init~int(116, 19, 2, 1);call write~init~int(32, 19, 3, 1);call write~init~int(0, 19, 4, 1);call #Ultimate.allocInit(3, 20);call write~init~int(37, 20, 0, 1);call write~init~int(105, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(3, 22);call write~init~int(117, 22, 0, 1);call write~init~int(112, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(5, 23);call write~init~int(100, 23, 0, 1);call write~init~int(111, 23, 1, 1);call write~init~int(119, 23, 2, 1);call write~init~int(110, 23, 3, 1);call write~init~int(0, 23, 4, 1);call #Ultimate.allocInit(7, 24);call write~init~int(32, 24, 0, 1);call write~init~int(73, 24, 1, 1);call write~init~int(76, 24, 2, 1);call write~init~int(95, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(4, 25);call write~init~int(32, 25, 0, 1);call write~init~int(37, 25, 1, 1);call write~init~int(105, 25, 2, 1);call write~init~int(0, 25, 3, 1);call #Ultimate.allocInit(4, 26);call write~init~int(32, 26, 0, 1);call write~init~int(37, 26, 1, 1);call write~init~int(105, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(4, 27);call write~init~int(32, 27, 0, 1);call write~init~int(37, 27, 1, 1);call write~init~int(105, 27, 2, 1);call write~init~int(0, 27, 3, 1);call #Ultimate.allocInit(4, 28);call write~init~int(32, 28, 0, 1);call write~init~int(37, 28, 1, 1);call write~init~int(105, 28, 2, 1);call write~init~int(0, 28, 3, 1);call #Ultimate.allocInit(4, 29);call write~init~int(32, 29, 0, 1);call write~init~int(37, 29, 1, 1);call write~init~int(105, 29, 2, 1);call write~init~int(0, 29, 3, 1);call #Ultimate.allocInit(6, 30);call write~init~int(32, 30, 0, 1);call write~init~int(70, 30, 1, 1);call write~init~int(95, 30, 2, 1);call write~init~int(112, 30, 3, 1);call write~init~int(58, 30, 4, 1);call write~init~int(0, 30, 5, 1);call #Ultimate.allocInit(4, 31);call write~init~int(32, 31, 0, 1);call write~init~int(37, 31, 1, 1);call write~init~int(105, 31, 2, 1);call write~init~int(0, 31, 3, 1);call #Ultimate.allocInit(4, 32);call write~init~int(32, 32, 0, 1);call write~init~int(37, 32, 1, 1);call write~init~int(105, 32, 2, 1);call write~init~int(0, 32, 3, 1);call #Ultimate.allocInit(4, 33);call write~init~int(32, 33, 0, 1);call write~init~int(37, 33, 1, 1);call write~init~int(105, 33, 2, 1);call write~init~int(0, 33, 3, 1);call #Ultimate.allocInit(4, 34);call write~init~int(32, 34, 0, 1);call write~init~int(37, 34, 1, 1);call write~init~int(105, 34, 2, 1);call write~init~int(0, 34, 3, 1);call #Ultimate.allocInit(4, 35);call write~init~int(32, 35, 0, 1);call write~init~int(37, 35, 1, 1);call write~init~int(105, 35, 2, 1);call write~init~int(0, 35, 3, 1);call #Ultimate.allocInit(2, 36);call write~init~int(10, 36, 0, 1);call write~init~int(0, 36, 1, 1);call #Ultimate.allocInit(9, 37);~doorState~0 := 1;~maximumWeight~0 := 100;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~persons_3~0 := 0;~weight~0 := 0;~persons_4~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_5~0 := 0;~persons_0~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~prevDir~0 := 0;~blocked~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~currentHeading~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~cleanupTimeShifts~0 := 12;~calls_1~0 := 0;~calls_0~0 := 0;~calls_4~0 := 0;~calls_3~0 := 0;~calls_2~0 := 0;~currentFloorID~0 := 0; 788943#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret128#1, main_~retValue_acc~27#1, main_~tmp~27#1;havoc main_~retValue_acc~27#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 788944#L2919 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 786619#L2912 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~25#1;havoc valid_product_~retValue_acc~25#1;valid_product_~retValue_acc~25#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~25#1; 786620#L2927 main_#t~ret128#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret128#1;havoc main_#t~ret128#1; 797825#L3266 assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 795771#L3243 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret117#1, aliceCall_~tmp~20#1;havoc aliceCall_~tmp~20#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 781630#L2819 assume !(0 == getOrigin_~person#1); 781631#L2823 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 788089#L2844 aliceCall_#t~ret117#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret117#1;havoc aliceCall_#t~ret117#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~20#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 788090#L2375 assume !(0 == initPersonOnFloor_~floor#1); 782592#L2402 assume !(1 == initPersonOnFloor_~floor#1); 782593#L2429 assume !(2 == initPersonOnFloor_~floor#1); 785491#L2456 assume 3 == initPersonOnFloor_~floor#1; 785492#L2457 assume !(0 == initPersonOnFloor_~person#1); 797419#L2460 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_3~0 := 1; 794899#L2483-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 792672#L2167 assume !(0 == callOnFloor_~floorID#1); 786555#L2170 assume !(1 == callOnFloor_~floorID#1); 786556#L2173 assume !(2 == callOnFloor_~floorID#1); 795558#L2176 assume 3 == callOnFloor_~floorID#1;~calls_3~0 := 1; 793612#L2179-2 assume { :end_inline_callOnFloor } true; 796048#L2519 assume { :end_inline_initPersonOnFloor } true; 796764#L3004 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;havoc angelinaCall_~tmp~21#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 786229#L2819-1 assume !(0 == getOrigin_~person#1); 786230#L2823-1 assume !(1 == getOrigin_~person#1); 790738#L2827-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 792749#L2844-1 angelinaCall_#t~ret118#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret118#1;havoc angelinaCall_#t~ret118#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~21#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 792627#L2375-1 assume !(0 == initPersonOnFloor_~floor#1); 788474#L2402-1 assume !(1 == initPersonOnFloor_~floor#1); 788475#L2429-1 assume 2 == initPersonOnFloor_~floor#1; 785066#L2430-2 assume !(0 == initPersonOnFloor_~person#1); 785067#L2433-2 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_2~0 := 1; 781084#L2483-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 796868#L2167-2 assume !(0 == callOnFloor_~floorID#1); 797973#L2170-2 assume !(1 == callOnFloor_~floorID#1); 797972#L2173-2 assume 2 == callOnFloor_~floorID#1;~calls_2~0 := 1; 789052#L2179-5 assume { :end_inline_callOnFloor } true; 789053#L2519-1 assume { :end_inline_initPersonOnFloor } true; 795485#L3015 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret79#1, timeShift_~tmp~14#1;havoc timeShift_~tmp~14#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;havoc getCurrentHeading_~retValue_acc~7#1;getCurrentHeading_~retValue_acc~7#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~7#1; 788755#L738 __utac_acc__Specification13_spec__1_#t~ret129#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret129#1;havoc __utac_acc__Specification13_spec__1_#t~ret129#1; 785443#L3288 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;havoc areDoorsOpen_~retValue_acc~5#1;areDoorsOpen_~retValue_acc~5#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~5#1; 785444#L695 timeShift_#t~ret79#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~14#1 := timeShift_#t~ret79#1;havoc timeShift_#t~ret79#1; 794841#L1647 assume 0 != timeShift_~tmp~14#1; 794842#L1648 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 796909#L1647-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret130#1, __utac_acc__Specification13_spec__2_#t~ret131#1, __utac_acc__Specification13_spec__2_#t~ret132#1, __utac_acc__Specification13_spec__2_#t~ret133#1, __utac_acc__Specification13_spec__2_#t~ret134#1, __utac_acc__Specification13_spec__2_#t~ret135#1, __utac_acc__Specification13_spec__2_~tmp~28#1, __utac_acc__Specification13_spec__2_~tmp___0~11#1, __utac_acc__Specification13_spec__2_~tmp___1~8#1, __utac_acc__Specification13_spec__2_~tmp___2~6#1, __utac_acc__Specification13_spec__2_~tmp___3~5#1, __utac_acc__Specification13_spec__2_~tmp___4~3#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;havoc __utac_acc__Specification13_spec__2_~tmp~28#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~11#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~8#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~6#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~5#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~3#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~7#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3); 797014#L3305 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1; 795392#L3306 assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~17#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~17#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 785970#L1867 assume !(1 == existInLiftCallsInDirection_~d#1); 785971#L1933 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 784228#L1937-2 [2022-11-18 20:35:58,796 INFO L750 eck$LassoCheckResult]: Loop: 784228#L1937-2 assume !false; 784229#L1938 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 785872#L1939 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 787813#L1946-2 assume !false; 787086#L1947 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 787088#L2005 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 784228#L1937-2 [2022-11-18 20:35:58,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:58,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1058059427, now seen corresponding path program 1 times [2022-11-18 20:35:58,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:58,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504262630] [2022-11-18 20:35:58,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:58,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:58,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:58,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:58,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504262630] [2022-11-18 20:35:58,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504262630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:58,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:58,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:35:58,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164266577] [2022-11-18 20:35:58,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:58,883 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:35:58,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:58,884 INFO L85 PathProgramCache]: Analyzing trace with hash 763776811, now seen corresponding path program 9 times [2022-11-18 20:35:58,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:58,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289397701] [2022-11-18 20:35:58,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:58,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:58,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:58,891 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:58,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:58,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:35:58,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:35:58,910 INFO L87 Difference]: Start difference. First operand 17368 states and 32556 transitions. cyclomatic complexity: 15222 Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2022-11-18 20:35:59,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:35:59,712 INFO L93 Difference]: Finished difference Result 24329 states and 45593 transitions. [2022-11-18 20:35:59,712 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24329 states and 45593 transitions. [2022-11-18 20:35:59,784 INFO L131 ngComponentsAnalysis]: Automaton has 42 accepting balls. 7564 [2022-11-18 20:35:59,835 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24329 states to 24329 states and 45593 transitions. [2022-11-18 20:35:59,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24310 [2022-11-18 20:35:59,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24310 [2022-11-18 20:35:59,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24329 states and 45593 transitions. [2022-11-18 20:35:59,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:35:59,851 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24329 states and 45593 transitions. [2022-11-18 20:35:59,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24329 states and 45593 transitions. [2022-11-18 20:36:00,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24329 to 17368. [2022-11-18 20:36:00,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17368 states, 17368 states have (on average 1.8740211883924458) internal successors, (32548), 17367 states have internal predecessors, (32548), 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) [2022-11-18 20:36:00,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17368 states to 17368 states and 32548 transitions. [2022-11-18 20:36:00,059 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17368 states and 32548 transitions. [2022-11-18 20:36:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:36:00,059 INFO L428 stractBuchiCegarLoop]: Abstraction has 17368 states and 32548 transitions. [2022-11-18 20:36:00,059 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-11-18 20:36:00,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17368 states and 32548 transitions. [2022-11-18 20:36:00,103 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3964 [2022-11-18 20:36:00,103 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:36:00,103 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:36:00,104 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:36:00,104 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:36:00,104 INFO L748 eck$LassoCheckResult]: Stem: 834219#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(10, 16);call #Ultimate.allocInit(4, 17);call write~init~int(91, 17, 0, 1);call write~init~int(95, 17, 1, 1);call write~init~int(93, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(4, 18);call write~init~int(91, 18, 0, 1);call write~init~int(93, 18, 1, 1);call write~init~int(32, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(5, 19);call write~init~int(32, 19, 0, 1);call write~init~int(97, 19, 1, 1);call write~init~int(116, 19, 2, 1);call write~init~int(32, 19, 3, 1);call write~init~int(0, 19, 4, 1);call #Ultimate.allocInit(3, 20);call write~init~int(37, 20, 0, 1);call write~init~int(105, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(3, 22);call write~init~int(117, 22, 0, 1);call write~init~int(112, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(5, 23);call write~init~int(100, 23, 0, 1);call write~init~int(111, 23, 1, 1);call write~init~int(119, 23, 2, 1);call write~init~int(110, 23, 3, 1);call write~init~int(0, 23, 4, 1);call #Ultimate.allocInit(7, 24);call write~init~int(32, 24, 0, 1);call write~init~int(73, 24, 1, 1);call write~init~int(76, 24, 2, 1);call write~init~int(95, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(4, 25);call write~init~int(32, 25, 0, 1);call write~init~int(37, 25, 1, 1);call write~init~int(105, 25, 2, 1);call write~init~int(0, 25, 3, 1);call #Ultimate.allocInit(4, 26);call write~init~int(32, 26, 0, 1);call write~init~int(37, 26, 1, 1);call write~init~int(105, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(4, 27);call write~init~int(32, 27, 0, 1);call write~init~int(37, 27, 1, 1);call write~init~int(105, 27, 2, 1);call write~init~int(0, 27, 3, 1);call #Ultimate.allocInit(4, 28);call write~init~int(32, 28, 0, 1);call write~init~int(37, 28, 1, 1);call write~init~int(105, 28, 2, 1);call write~init~int(0, 28, 3, 1);call #Ultimate.allocInit(4, 29);call write~init~int(32, 29, 0, 1);call write~init~int(37, 29, 1, 1);call write~init~int(105, 29, 2, 1);call write~init~int(0, 29, 3, 1);call #Ultimate.allocInit(6, 30);call write~init~int(32, 30, 0, 1);call write~init~int(70, 30, 1, 1);call write~init~int(95, 30, 2, 1);call write~init~int(112, 30, 3, 1);call write~init~int(58, 30, 4, 1);call write~init~int(0, 30, 5, 1);call #Ultimate.allocInit(4, 31);call write~init~int(32, 31, 0, 1);call write~init~int(37, 31, 1, 1);call write~init~int(105, 31, 2, 1);call write~init~int(0, 31, 3, 1);call #Ultimate.allocInit(4, 32);call write~init~int(32, 32, 0, 1);call write~init~int(37, 32, 1, 1);call write~init~int(105, 32, 2, 1);call write~init~int(0, 32, 3, 1);call #Ultimate.allocInit(4, 33);call write~init~int(32, 33, 0, 1);call write~init~int(37, 33, 1, 1);call write~init~int(105, 33, 2, 1);call write~init~int(0, 33, 3, 1);call #Ultimate.allocInit(4, 34);call write~init~int(32, 34, 0, 1);call write~init~int(37, 34, 1, 1);call write~init~int(105, 34, 2, 1);call write~init~int(0, 34, 3, 1);call #Ultimate.allocInit(4, 35);call write~init~int(32, 35, 0, 1);call write~init~int(37, 35, 1, 1);call write~init~int(105, 35, 2, 1);call write~init~int(0, 35, 3, 1);call #Ultimate.allocInit(2, 36);call write~init~int(10, 36, 0, 1);call write~init~int(0, 36, 1, 1);call #Ultimate.allocInit(9, 37);~doorState~0 := 1;~maximumWeight~0 := 100;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~persons_3~0 := 0;~weight~0 := 0;~persons_4~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_5~0 := 0;~persons_0~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~prevDir~0 := 0;~blocked~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~currentHeading~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~cleanupTimeShifts~0 := 12;~calls_1~0 := 0;~calls_0~0 := 0;~calls_4~0 := 0;~calls_3~0 := 0;~calls_2~0 := 0;~currentFloorID~0 := 0; 830649#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret128#1, main_~retValue_acc~27#1, main_~tmp~27#1;havoc main_~retValue_acc~27#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 830650#L2919 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 828325#L2912 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~25#1;havoc valid_product_~retValue_acc~25#1;valid_product_~retValue_acc~25#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~25#1; 828326#L2927 main_#t~ret128#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret128#1;havoc main_#t~ret128#1; 839527#L3266 assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 837474#L3243 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret117#1, aliceCall_~tmp~20#1;havoc aliceCall_~tmp~20#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 823337#L2819 assume !(0 == getOrigin_~person#1); 823338#L2823 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 829795#L2844 aliceCall_#t~ret117#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret117#1;havoc aliceCall_#t~ret117#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~20#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 829796#L2375 assume !(0 == initPersonOnFloor_~floor#1); 824299#L2402 assume !(1 == initPersonOnFloor_~floor#1); 824300#L2429 assume !(2 == initPersonOnFloor_~floor#1); 827197#L2456 assume 3 == initPersonOnFloor_~floor#1; 827198#L2457 assume !(0 == initPersonOnFloor_~person#1); 839121#L2460 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_3~0 := 1; 836605#L2483-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 834380#L2167 assume !(0 == callOnFloor_~floorID#1); 828261#L2170 assume !(1 == callOnFloor_~floorID#1); 828262#L2173 assume !(2 == callOnFloor_~floorID#1); 837263#L2176 assume 3 == callOnFloor_~floorID#1;~calls_3~0 := 1; 835320#L2179-2 assume { :end_inline_callOnFloor } true; 837751#L2519 assume { :end_inline_initPersonOnFloor } true; 838466#L3004 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;havoc angelinaCall_~tmp~21#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 827935#L2819-1 assume !(0 == getOrigin_~person#1); 827936#L2823-1 assume !(1 == getOrigin_~person#1); 832446#L2827-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 834457#L2844-1 angelinaCall_#t~ret118#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret118#1;havoc angelinaCall_#t~ret118#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~21#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 834335#L2375-1 assume !(0 == initPersonOnFloor_~floor#1); 830182#L2402-1 assume !(1 == initPersonOnFloor_~floor#1); 830183#L2429-1 assume 2 == initPersonOnFloor_~floor#1; 826772#L2430-2 assume !(0 == initPersonOnFloor_~person#1); 826773#L2433-2 assume !(1 == initPersonOnFloor_~person#1); 834329#L2436-2 assume 2 == initPersonOnFloor_~person#1;~personOnFloor_2_2~0 := 1; 822791#L2483-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 839679#L2167-2 assume !(0 == callOnFloor_~floorID#1); 839678#L2170-2 assume !(1 == callOnFloor_~floorID#1); 839677#L2173-2 assume 2 == callOnFloor_~floorID#1;~calls_2~0 := 1; 830758#L2179-5 assume { :end_inline_callOnFloor } true; 830759#L2519-1 assume { :end_inline_initPersonOnFloor } true; 837190#L3015 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret79#1, timeShift_~tmp~14#1;havoc timeShift_~tmp~14#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;havoc getCurrentHeading_~retValue_acc~7#1;getCurrentHeading_~retValue_acc~7#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~7#1; 830461#L738 __utac_acc__Specification13_spec__1_#t~ret129#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret129#1;havoc __utac_acc__Specification13_spec__1_#t~ret129#1; 827149#L3288 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;havoc areDoorsOpen_~retValue_acc~5#1;areDoorsOpen_~retValue_acc~5#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~5#1; 827150#L695 timeShift_#t~ret79#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~14#1 := timeShift_#t~ret79#1;havoc timeShift_#t~ret79#1; 836547#L1647 assume 0 != timeShift_~tmp~14#1; 836548#L1648 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 838612#L1647-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret130#1, __utac_acc__Specification13_spec__2_#t~ret131#1, __utac_acc__Specification13_spec__2_#t~ret132#1, __utac_acc__Specification13_spec__2_#t~ret133#1, __utac_acc__Specification13_spec__2_#t~ret134#1, __utac_acc__Specification13_spec__2_#t~ret135#1, __utac_acc__Specification13_spec__2_~tmp~28#1, __utac_acc__Specification13_spec__2_~tmp___0~11#1, __utac_acc__Specification13_spec__2_~tmp___1~8#1, __utac_acc__Specification13_spec__2_~tmp___2~6#1, __utac_acc__Specification13_spec__2_~tmp___3~5#1, __utac_acc__Specification13_spec__2_~tmp___4~3#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;havoc __utac_acc__Specification13_spec__2_~tmp~28#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~11#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~8#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~6#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~5#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~3#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~7#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3); 838716#L3305 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1; 837097#L3306 assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~17#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~17#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 827676#L1867 assume !(1 == existInLiftCallsInDirection_~d#1); 827677#L1933 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 825934#L1937-2 [2022-11-18 20:36:00,104 INFO L750 eck$LassoCheckResult]: Loop: 825934#L1937-2 assume !false; 825935#L1938 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 827578#L1939 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 829519#L1946-2 assume !false; 828792#L1947 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 828794#L2005 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 825934#L1937-2 [2022-11-18 20:36:00,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:00,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1946841046, now seen corresponding path program 1 times [2022-11-18 20:36:00,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:00,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716729869] [2022-11-18 20:36:00,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:00,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:00,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:36:00,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:00,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716729869] [2022-11-18 20:36:00,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716729869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:00,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:00,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:36:00,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790586285] [2022-11-18 20:36:00,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:00,207 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:36:00,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:00,208 INFO L85 PathProgramCache]: Analyzing trace with hash 763776811, now seen corresponding path program 10 times [2022-11-18 20:36:00,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:00,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411579278] [2022-11-18 20:36:00,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:00,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:00,211 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:36:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:00,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:36:00,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:00,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:36:00,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:36:00,235 INFO L87 Difference]: Start difference. First operand 17368 states and 32548 transitions. cyclomatic complexity: 15214 Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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) [2022-11-18 20:36:01,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:36:01,275 INFO L93 Difference]: Finished difference Result 32858 states and 61690 transitions. [2022-11-18 20:36:01,275 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32858 states and 61690 transitions. [2022-11-18 20:36:01,374 INFO L131 ngComponentsAnalysis]: Automaton has 66 accepting balls. 6896 [2022-11-18 20:36:01,451 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32858 states to 32858 states and 61690 transitions. [2022-11-18 20:36:01,451 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32820 [2022-11-18 20:36:01,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32820 [2022-11-18 20:36:01,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32858 states and 61690 transitions. [2022-11-18 20:36:01,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:36:01,484 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32858 states and 61690 transitions. [2022-11-18 20:36:01,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32858 states and 61690 transitions. [2022-11-18 20:36:01,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32858 to 27846. [2022-11-18 20:36:01,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27846 states, 27846 states have (on average 1.8746678158442864) internal successors, (52202), 27845 states have internal predecessors, (52202), 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) [2022-11-18 20:36:01,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27846 states to 27846 states and 52202 transitions. [2022-11-18 20:36:01,820 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27846 states and 52202 transitions. [2022-11-18 20:36:01,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:36:01,821 INFO L428 stractBuchiCegarLoop]: Abstraction has 27846 states and 52202 transitions. [2022-11-18 20:36:01,821 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-11-18 20:36:01,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27846 states and 52202 transitions. [2022-11-18 20:36:01,891 INFO L131 ngComponentsAnalysis]: Automaton has 66 accepting balls. 6896 [2022-11-18 20:36:01,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:36:01,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:36:01,891 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:36:01,891 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:36:01,892 INFO L748 eck$LassoCheckResult]: Stem: 884646#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(10, 16);call #Ultimate.allocInit(4, 17);call write~init~int(91, 17, 0, 1);call write~init~int(95, 17, 1, 1);call write~init~int(93, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(4, 18);call write~init~int(91, 18, 0, 1);call write~init~int(93, 18, 1, 1);call write~init~int(32, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(5, 19);call write~init~int(32, 19, 0, 1);call write~init~int(97, 19, 1, 1);call write~init~int(116, 19, 2, 1);call write~init~int(32, 19, 3, 1);call write~init~int(0, 19, 4, 1);call #Ultimate.allocInit(3, 20);call write~init~int(37, 20, 0, 1);call write~init~int(105, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(3, 22);call write~init~int(117, 22, 0, 1);call write~init~int(112, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(5, 23);call write~init~int(100, 23, 0, 1);call write~init~int(111, 23, 1, 1);call write~init~int(119, 23, 2, 1);call write~init~int(110, 23, 3, 1);call write~init~int(0, 23, 4, 1);call #Ultimate.allocInit(7, 24);call write~init~int(32, 24, 0, 1);call write~init~int(73, 24, 1, 1);call write~init~int(76, 24, 2, 1);call write~init~int(95, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(4, 25);call write~init~int(32, 25, 0, 1);call write~init~int(37, 25, 1, 1);call write~init~int(105, 25, 2, 1);call write~init~int(0, 25, 3, 1);call #Ultimate.allocInit(4, 26);call write~init~int(32, 26, 0, 1);call write~init~int(37, 26, 1, 1);call write~init~int(105, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(4, 27);call write~init~int(32, 27, 0, 1);call write~init~int(37, 27, 1, 1);call write~init~int(105, 27, 2, 1);call write~init~int(0, 27, 3, 1);call #Ultimate.allocInit(4, 28);call write~init~int(32, 28, 0, 1);call write~init~int(37, 28, 1, 1);call write~init~int(105, 28, 2, 1);call write~init~int(0, 28, 3, 1);call #Ultimate.allocInit(4, 29);call write~init~int(32, 29, 0, 1);call write~init~int(37, 29, 1, 1);call write~init~int(105, 29, 2, 1);call write~init~int(0, 29, 3, 1);call #Ultimate.allocInit(6, 30);call write~init~int(32, 30, 0, 1);call write~init~int(70, 30, 1, 1);call write~init~int(95, 30, 2, 1);call write~init~int(112, 30, 3, 1);call write~init~int(58, 30, 4, 1);call write~init~int(0, 30, 5, 1);call #Ultimate.allocInit(4, 31);call write~init~int(32, 31, 0, 1);call write~init~int(37, 31, 1, 1);call write~init~int(105, 31, 2, 1);call write~init~int(0, 31, 3, 1);call #Ultimate.allocInit(4, 32);call write~init~int(32, 32, 0, 1);call write~init~int(37, 32, 1, 1);call write~init~int(105, 32, 2, 1);call write~init~int(0, 32, 3, 1);call #Ultimate.allocInit(4, 33);call write~init~int(32, 33, 0, 1);call write~init~int(37, 33, 1, 1);call write~init~int(105, 33, 2, 1);call write~init~int(0, 33, 3, 1);call #Ultimate.allocInit(4, 34);call write~init~int(32, 34, 0, 1);call write~init~int(37, 34, 1, 1);call write~init~int(105, 34, 2, 1);call write~init~int(0, 34, 3, 1);call #Ultimate.allocInit(4, 35);call write~init~int(32, 35, 0, 1);call write~init~int(37, 35, 1, 1);call write~init~int(105, 35, 2, 1);call write~init~int(0, 35, 3, 1);call #Ultimate.allocInit(2, 36);call write~init~int(10, 36, 0, 1);call write~init~int(0, 36, 1, 1);call #Ultimate.allocInit(9, 37);~doorState~0 := 1;~maximumWeight~0 := 100;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~persons_3~0 := 0;~weight~0 := 0;~persons_4~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_5~0 := 0;~persons_0~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~prevDir~0 := 0;~blocked~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~currentHeading~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~cleanupTimeShifts~0 := 12;~calls_1~0 := 0;~calls_0~0 := 0;~calls_4~0 := 0;~calls_3~0 := 0;~calls_2~0 := 0;~currentFloorID~0 := 0; 880958#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret128#1, main_~retValue_acc~27#1, main_~tmp~27#1;havoc main_~retValue_acc~27#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 880959#L2919 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 878589#L2912 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~25#1;havoc valid_product_~retValue_acc~25#1;valid_product_~retValue_acc~25#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~25#1; 878590#L2927 main_#t~ret128#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret128#1;havoc main_#t~ret128#1; 890591#L3266 assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 888128#L3243 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret117#1, aliceCall_~tmp~20#1;havoc aliceCall_~tmp~20#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 873570#L2819 assume !(0 == getOrigin_~person#1); 873571#L2823 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 880076#L2844 aliceCall_#t~ret117#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret117#1;havoc aliceCall_#t~ret117#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~20#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 880077#L2375 assume !(0 == initPersonOnFloor_~floor#1); 874535#L2402 assume !(1 == initPersonOnFloor_~floor#1); 874536#L2429 assume !(2 == initPersonOnFloor_~floor#1); 877449#L2456 assume 3 == initPersonOnFloor_~floor#1; 877450#L2457 assume !(0 == initPersonOnFloor_~person#1); 890022#L2460 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_3~0 := 1; 887176#L2483-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 884817#L2167 assume !(0 == callOnFloor_~floorID#1); 878523#L2170 assume !(1 == callOnFloor_~floorID#1); 878524#L2173 assume !(2 == callOnFloor_~floorID#1); 887890#L2176 assume 3 == callOnFloor_~floorID#1;~calls_3~0 := 1; 885807#L2179-2 assume { :end_inline_callOnFloor } true; 888436#L2519 assume { :end_inline_initPersonOnFloor } true; 889244#L3004 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;havoc angelinaCall_~tmp~21#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 878194#L2819-1 assume !(0 == getOrigin_~person#1); 878195#L2823-1 assume !(1 == getOrigin_~person#1); 882802#L2827-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 884899#L2844-1 angelinaCall_#t~ret118#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret118#1;havoc angelinaCall_#t~ret118#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~21#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 884769#L2375-1 assume !(0 == initPersonOnFloor_~floor#1); 880476#L2402-1 assume !(1 == initPersonOnFloor_~floor#1); 880477#L2429-1 assume 2 == initPersonOnFloor_~floor#1; 877021#L2430-2 assume !(0 == initPersonOnFloor_~person#1); 877022#L2433-2 assume !(1 == initPersonOnFloor_~person#1); 884765#L2436-2 assume 2 == initPersonOnFloor_~person#1;~personOnFloor_2_2~0 := 1; 873023#L2483-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 890841#L2167-2 assume !(0 == callOnFloor_~floorID#1); 890840#L2170-2 assume !(1 == callOnFloor_~floorID#1); 890839#L2173-2 assume 2 == callOnFloor_~floorID#1;~calls_2~0 := 1; 881070#L2179-5 assume { :end_inline_callOnFloor } true; 881071#L2519-1 assume { :end_inline_initPersonOnFloor } true; 887813#L3015 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret79#1, timeShift_~tmp~14#1;havoc timeShift_~tmp~14#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;havoc getCurrentHeading_~retValue_acc~7#1;getCurrentHeading_~retValue_acc~7#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~7#1; 880760#L738 __utac_acc__Specification13_spec__1_#t~ret129#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret129#1;havoc __utac_acc__Specification13_spec__1_#t~ret129#1; 877400#L3288 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;havoc areDoorsOpen_~retValue_acc~5#1;areDoorsOpen_~retValue_acc~5#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~5#1; 877401#L695 timeShift_#t~ret79#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~14#1 := timeShift_#t~ret79#1;havoc timeShift_#t~ret79#1; 887111#L1647 assume !(0 != timeShift_~tmp~14#1);~blocked~0 := 0;assume { :begin_inline_timeShift__wrappee__twothirdsfull } true;havoc timeShift__wrappee__twothirdsfull_#t~ret68#1, timeShift__wrappee__twothirdsfull_#t~ret69#1, timeShift__wrappee__twothirdsfull_#t~ret70#1, timeShift__wrappee__twothirdsfull_#t~ret71#1, timeShift__wrappee__twothirdsfull_#t~ret72#1, timeShift__wrappee__twothirdsfull_#t~ret73#1, timeShift__wrappee__twothirdsfull_#t~ret74#1, timeShift__wrappee__twothirdsfull_#t~ret75#1, timeShift__wrappee__twothirdsfull_#t~ret76#1, timeShift__wrappee__twothirdsfull_#t~ret77#1, timeShift__wrappee__twothirdsfull_#t~ret78#1, timeShift__wrappee__twothirdsfull_~tmp~13#1, timeShift__wrappee__twothirdsfull_~tmp___0~5#1, timeShift__wrappee__twothirdsfull_~tmp___1~3#1, timeShift__wrappee__twothirdsfull_~tmp___2~3#1, timeShift__wrappee__twothirdsfull_~tmp___3~3#1, timeShift__wrappee__twothirdsfull_~tmp___4~2#1, timeShift__wrappee__twothirdsfull_~tmp___5~2#1, timeShift__wrappee__twothirdsfull_~tmp___6~2#1, timeShift__wrappee__twothirdsfull_~tmp___7~2#1, timeShift__wrappee__twothirdsfull_~tmp___8~2#1, timeShift__wrappee__twothirdsfull_~tmp___9~2#1;havoc timeShift__wrappee__twothirdsfull_~tmp~13#1;havoc timeShift__wrappee__twothirdsfull_~tmp___0~5#1;havoc timeShift__wrappee__twothirdsfull_~tmp___1~3#1;havoc timeShift__wrappee__twothirdsfull_~tmp___2~3#1;havoc timeShift__wrappee__twothirdsfull_~tmp___3~3#1;havoc timeShift__wrappee__twothirdsfull_~tmp___4~2#1;havoc timeShift__wrappee__twothirdsfull_~tmp___5~2#1;havoc timeShift__wrappee__twothirdsfull_~tmp___6~2#1;havoc timeShift__wrappee__twothirdsfull_~tmp___7~2#1;havoc timeShift__wrappee__twothirdsfull_~tmp___8~2#1;havoc timeShift__wrappee__twothirdsfull_~tmp___9~2#1;assume { :begin_inline_stopRequestedAtCurrentFloor } true;havoc stopRequestedAtCurrentFloor_#res#1;havoc stopRequestedAtCurrentFloor_#t~ret53#1, stopRequestedAtCurrentFloor_#t~ret54#1, stopRequestedAtCurrentFloor_#t~ret55#1, stopRequestedAtCurrentFloor_~retValue_acc~15#1, stopRequestedAtCurrentFloor_~tmp~11#1, stopRequestedAtCurrentFloor_~tmp___0~3#1, stopRequestedAtCurrentFloor_~__cil_tmp4~2#1, stopRequestedAtCurrentFloor_~__cil_tmp5~4#1;havoc stopRequestedAtCurrentFloor_~retValue_acc~15#1;havoc stopRequestedAtCurrentFloor_~tmp~11#1;havoc stopRequestedAtCurrentFloor_~tmp___0~3#1;havoc stopRequestedAtCurrentFloor_~__cil_tmp4~2#1;havoc stopRequestedAtCurrentFloor_~__cil_tmp5~4#1;stopRequestedAtCurrentFloor_~__cil_tmp4~2#1 := 2 * ~maximumWeight~0;stopRequestedAtCurrentFloor_~__cil_tmp5~4#1 := (if stopRequestedAtCurrentFloor_~__cil_tmp4~2#1 < 0 && 0 != stopRequestedAtCurrentFloor_~__cil_tmp4~2#1 % 3 then 1 + stopRequestedAtCurrentFloor_~__cil_tmp4~2#1 / 3 else stopRequestedAtCurrentFloor_~__cil_tmp4~2#1 / 3); 883219#L1367-1 assume ~weight~0 > stopRequestedAtCurrentFloor_~__cil_tmp5~4#1;assume { :begin_inline_getCurrentFloorID } true;havoc getCurrentFloorID_#res#1;havoc getCurrentFloorID_~retValue_acc~4#1;havoc getCurrentFloorID_~retValue_acc~4#1;getCurrentFloorID_~retValue_acc~4#1 := ~currentFloorID~0;getCurrentFloorID_#res#1 := getCurrentFloorID_~retValue_acc~4#1; 883220#L686-1 stopRequestedAtCurrentFloor_#t~ret53#1 := getCurrentFloorID_#res#1;assume { :end_inline_getCurrentFloorID } true;stopRequestedAtCurrentFloor_~tmp~11#1 := stopRequestedAtCurrentFloor_#t~ret53#1;havoc stopRequestedAtCurrentFloor_#t~ret53#1;assume { :begin_inline_buttonForFloorIsPressed } true;buttonForFloorIsPressed_#in~floorID#1 := stopRequestedAtCurrentFloor_~tmp~11#1;havoc buttonForFloorIsPressed_#res#1;havoc buttonForFloorIsPressed_~floorID#1, buttonForFloorIsPressed_~retValue_acc~6#1;buttonForFloorIsPressed_~floorID#1 := buttonForFloorIsPressed_#in~floorID#1;havoc buttonForFloorIsPressed_~retValue_acc~6#1; 889075#L703-2 assume 0 == buttonForFloorIsPressed_~floorID#1;buttonForFloorIsPressed_~retValue_acc~6#1 := ~floorButtons_0~0;buttonForFloorIsPressed_#res#1 := buttonForFloorIsPressed_~retValue_acc~6#1; 873359#L724-2 stopRequestedAtCurrentFloor_#t~ret54#1 := buttonForFloorIsPressed_#res#1;assume { :end_inline_buttonForFloorIsPressed } true;stopRequestedAtCurrentFloor_~tmp___0~3#1 := stopRequestedAtCurrentFloor_#t~ret54#1;havoc stopRequestedAtCurrentFloor_#t~ret54#1;stopRequestedAtCurrentFloor_~retValue_acc~15#1 := (if 1 == stopRequestedAtCurrentFloor_~tmp___0~3#1 then 1 else 0);stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~15#1; 884683#L1378-1 timeShift__wrappee__twothirdsfull_#t~ret68#1 := stopRequestedAtCurrentFloor_#res#1;assume { :end_inline_stopRequestedAtCurrentFloor } true;timeShift__wrappee__twothirdsfull_~tmp___9~2#1 := timeShift__wrappee__twothirdsfull_#t~ret68#1;havoc timeShift__wrappee__twothirdsfull_#t~ret68#1; 878046#L1514-2 assume !(0 != timeShift__wrappee__twothirdsfull_~tmp___9~2#1); 878047#L1605-3 assume !(1 == ~doorState~0); 879914#L1605-5 assume { :begin_inline_stopRequestedInDirection } true;stopRequestedInDirection_#in~dir#1, stopRequestedInDirection_#in~respectFloorCalls#1, stopRequestedInDirection_#in~respectInLiftCalls#1 := ~currentHeading~0, 1, 1;havoc stopRequestedInDirection_#res#1;havoc stopRequestedInDirection_#t~ret46#1, stopRequestedInDirection_#t~ret47#1, stopRequestedInDirection_#t~ret48#1, stopRequestedInDirection_#t~ret49#1, stopRequestedInDirection_~dir#1, stopRequestedInDirection_~respectFloorCalls#1, stopRequestedInDirection_~respectInLiftCalls#1, stopRequestedInDirection_~retValue_acc~12#1, stopRequestedInDirection_~overload~0#1, stopRequestedInDirection_~buttonPressed~0#1, stopRequestedInDirection_~tmp~8#1, stopRequestedInDirection_~__cil_tmp8~5#1, stopRequestedInDirection_~__cil_tmp9~5#1;stopRequestedInDirection_~dir#1 := stopRequestedInDirection_#in~dir#1;stopRequestedInDirection_~respectFloorCalls#1 := stopRequestedInDirection_#in~respectFloorCalls#1;stopRequestedInDirection_~respectInLiftCalls#1 := stopRequestedInDirection_#in~respectInLiftCalls#1;havoc stopRequestedInDirection_~retValue_acc~12#1;havoc stopRequestedInDirection_~overload~0#1;havoc stopRequestedInDirection_~buttonPressed~0#1;havoc stopRequestedInDirection_~tmp~8#1;havoc stopRequestedInDirection_~__cil_tmp8~5#1;havoc stopRequestedInDirection_~__cil_tmp9~5#1;stopRequestedInDirection_~__cil_tmp8~5#1 := 2 * ~maximumWeight~0;stopRequestedInDirection_~__cil_tmp9~5#1 := (if stopRequestedInDirection_~__cil_tmp8~5#1 < 0 && 0 != stopRequestedInDirection_~__cil_tmp8~5#1 % 3 then 1 + stopRequestedInDirection_~__cil_tmp8~5#1 / 3 else stopRequestedInDirection_~__cil_tmp8~5#1 / 3);stopRequestedInDirection_~overload~0#1 := (if ~weight~0 > stopRequestedInDirection_~__cil_tmp9~5#1 then 1 else 0);assume { :begin_inline_isAnyLiftButtonPressed } true;havoc isAnyLiftButtonPressed_#res#1;havoc isAnyLiftButtonPressed_~retValue_acc~13#1;havoc isAnyLiftButtonPressed_~retValue_acc~13#1; 883264#L1270-2 assume 0 != ~floorButtons_0~0;isAnyLiftButtonPressed_~retValue_acc~13#1 := 1;isAnyLiftButtonPressed_#res#1 := isAnyLiftButtonPressed_~retValue_acc~13#1; 876428#L1291-2 stopRequestedInDirection_#t~ret46#1 := isAnyLiftButtonPressed_#res#1;assume { :end_inline_isAnyLiftButtonPressed } true;stopRequestedInDirection_~tmp~8#1 := stopRequestedInDirection_#t~ret46#1;havoc stopRequestedInDirection_#t~ret46#1;stopRequestedInDirection_~buttonPressed~0#1 := stopRequestedInDirection_~tmp~8#1; 889558#L1243-2 assume !(0 != stopRequestedInDirection_~overload~0#1);assume { :begin_inline_stopRequestedInDirection__wrappee__weight } true;stopRequestedInDirection__wrappee__weight_#in~dir#1, stopRequestedInDirection__wrappee__weight_#in~respectFloorCalls#1, stopRequestedInDirection__wrappee__weight_#in~respectInLiftCalls#1 := stopRequestedInDirection_~dir#1, stopRequestedInDirection_~respectFloorCalls#1, stopRequestedInDirection_~respectInLiftCalls#1;havoc stopRequestedInDirection__wrappee__weight_#res#1;havoc stopRequestedInDirection__wrappee__weight_#t~ret35#1, stopRequestedInDirection__wrappee__weight_#t~ret36#1, stopRequestedInDirection__wrappee__weight_#t~ret37#1, stopRequestedInDirection__wrappee__weight_#t~ret38#1, stopRequestedInDirection__wrappee__weight_#t~ret39#1, stopRequestedInDirection__wrappee__weight_#t~ret40#1, stopRequestedInDirection__wrappee__weight_#t~ret41#1, stopRequestedInDirection__wrappee__weight_#t~ret42#1, stopRequestedInDirection__wrappee__weight_#t~ret43#1, stopRequestedInDirection__wrappee__weight_#t~ret44#1, stopRequestedInDirection__wrappee__weight_#t~ret45#1, stopRequestedInDirection__wrappee__weight_~dir#1, stopRequestedInDirection__wrappee__weight_~respectFloorCalls#1, stopRequestedInDirection__wrappee__weight_~respectInLiftCalls#1, stopRequestedInDirection__wrappee__weight_~retValue_acc~11#1, stopRequestedInDirection__wrappee__weight_~tmp~7#1, stopRequestedInDirection__wrappee__weight_~tmp___0~1#1, stopRequestedInDirection__wrappee__weight_~tmp___1~1#1, stopRequestedInDirection__wrappee__weight_~tmp___2~1#1, stopRequestedInDirection__wrappee__weight_~tmp___3~1#1, stopRequestedInDirection__wrappee__weight_~tmp___4~0#1, stopRequestedInDirection__wrappee__weight_~tmp___5~0#1, stopRequestedInDirection__wrappee__weight_~tmp___6~0#1, stopRequestedInDirection__wrappee__weight_~tmp___7~0#1, stopRequestedInDirection__wrappee__weight_~tmp___8~0#1, stopRequestedInDirection__wrappee__weight_~tmp___9~0#1;stopRequestedInDirection__wrappee__weight_~dir#1 := stopRequestedInDirection__wrappee__weight_#in~dir#1;stopRequestedInDirection__wrappee__weight_~respectFloorCalls#1 := stopRequestedInDirection__wrappee__weight_#in~respectFloorCalls#1;stopRequestedInDirection__wrappee__weight_~respectInLiftCalls#1 := stopRequestedInDirection__wrappee__weight_#in~respectInLiftCalls#1;havoc stopRequestedInDirection__wrappee__weight_~retValue_acc~11#1;havoc stopRequestedInDirection__wrappee__weight_~tmp~7#1;havoc stopRequestedInDirection__wrappee__weight_~tmp___0~1#1;havoc stopRequestedInDirection__wrappee__weight_~tmp___1~1#1;havoc stopRequestedInDirection__wrappee__weight_~tmp___2~1#1;havoc stopRequestedInDirection__wrappee__weight_~tmp___3~1#1;havoc stopRequestedInDirection__wrappee__weight_~tmp___4~0#1;havoc stopRequestedInDirection__wrappee__weight_~tmp___5~0#1;havoc stopRequestedInDirection__wrappee__weight_~tmp___6~0#1;havoc stopRequestedInDirection__wrappee__weight_~tmp___7~0#1;havoc stopRequestedInDirection__wrappee__weight_~tmp___8~0#1;havoc stopRequestedInDirection__wrappee__weight_~tmp___9~0#1; 877675#L890-8 assume !(1 == stopRequestedInDirection__wrappee__weight_~dir#1); 877676#L1059-8 assume 0 == ~currentFloorID~0;stopRequestedInDirection__wrappee__weight_~retValue_acc~11#1 := 0;stopRequestedInDirection__wrappee__weight_#res#1 := stopRequestedInDirection__wrappee__weight_~retValue_acc~11#1; 874206#L1212-8 stopRequestedInDirection_#t~ret49#1 := stopRequestedInDirection__wrappee__weight_#res#1;assume { :end_inline_stopRequestedInDirection__wrappee__weight } true;stopRequestedInDirection_~retValue_acc~12#1 := stopRequestedInDirection_#t~ret49#1;havoc stopRequestedInDirection_#t~ret49#1;stopRequestedInDirection_#res#1 := stopRequestedInDirection_~retValue_acc~12#1; 874207#L1261-2 timeShift__wrappee__twothirdsfull_#t~ret75#1 := stopRequestedInDirection_#res#1;assume { :end_inline_stopRequestedInDirection } true;timeShift__wrappee__twothirdsfull_~tmp___8~2#1 := timeShift__wrappee__twothirdsfull_#t~ret75#1;havoc timeShift__wrappee__twothirdsfull_#t~ret75#1; 883998#L1613-2 assume 0 != timeShift__wrappee__twothirdsfull_~tmp___8~2#1;assume { :begin_inline_continueInDirection } true;continueInDirection_#in~dir#1 := ~currentHeading~0;havoc continueInDirection_#t~ret50#1, continueInDirection_~dir#1, continueInDirection_~tmp~9#1;continueInDirection_~dir#1 := continueInDirection_#in~dir#1;havoc continueInDirection_~tmp~9#1;~currentHeading~0 := continueInDirection_~dir#1; 882560#L1305-3 assume !(1 == ~currentHeading~0); 882562#L1315-9 assume 0 == ~currentFloorID~0;~currentHeading~0 := 1; 874117#L1315-11 assume !(1 == ~currentHeading~0);~currentFloorID~0 := ~currentFloorID~0 - 1; 887066#L1321-7 assume { :end_inline_continueInDirection } true; 874173#L1622-5 assume { :end_inline_timeShift__wrappee__twothirdsfull } true; 889419#L1647-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret130#1, __utac_acc__Specification13_spec__2_#t~ret131#1, __utac_acc__Specification13_spec__2_#t~ret132#1, __utac_acc__Specification13_spec__2_#t~ret133#1, __utac_acc__Specification13_spec__2_#t~ret134#1, __utac_acc__Specification13_spec__2_#t~ret135#1, __utac_acc__Specification13_spec__2_~tmp~28#1, __utac_acc__Specification13_spec__2_~tmp___0~11#1, __utac_acc__Specification13_spec__2_~tmp___1~8#1, __utac_acc__Specification13_spec__2_~tmp___2~6#1, __utac_acc__Specification13_spec__2_~tmp___3~5#1, __utac_acc__Specification13_spec__2_~tmp___4~3#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;havoc __utac_acc__Specification13_spec__2_~tmp~28#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~11#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~8#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~6#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~5#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~3#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~7#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3); 890793#L3305 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1; 890994#L3306 assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~17#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~17#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 877933#L1867 assume !(1 == existInLiftCallsInDirection_~d#1); 877934#L1933 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 892024#L1937-2 [2022-11-18 20:36:01,892 INFO L750 eck$LassoCheckResult]: Loop: 892024#L1937-2 assume !false; 892023#L1938 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 888633#L1939 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 879798#L1946-2 assume !false; 892021#L1947 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 892022#L2005 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 892024#L1937-2 [2022-11-18 20:36:01,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:01,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1502347685, now seen corresponding path program 1 times [2022-11-18 20:36:01,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:01,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564045914] [2022-11-18 20:36:01,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:01,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:02,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:36:02,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:02,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564045914] [2022-11-18 20:36:02,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564045914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:02,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:02,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:36:02,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986462315] [2022-11-18 20:36:02,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:02,265 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:36:02,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:02,265 INFO L85 PathProgramCache]: Analyzing trace with hash 763776811, now seen corresponding path program 11 times [2022-11-18 20:36:02,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:02,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562631007] [2022-11-18 20:36:02,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:02,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:02,275 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:36:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:02,281 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:36:02,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:02,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:36:02,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:36:02,309 INFO L87 Difference]: Start difference. First operand 27846 states and 52202 transitions. cyclomatic complexity: 24424 Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 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)