./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 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_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/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_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/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_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/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 d84130cab59568fb669543ac086f4847eedfc87145b3c30d32e19c1d0d03b42f --- 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 20:35:32,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:35:33,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:35:33,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:35:33,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:35:33,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:35:33,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:35:33,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:35:33,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:35:33,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:35:33,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:35:33,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:35:33,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:35:33,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:35:33,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:35:33,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:35:33,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:35:33,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:35:33,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:35:33,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:35:33,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:35:33,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:35:33,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:35:33,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:35:33,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:35:33,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:35:33,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:35:33,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:35:33,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:35:33,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:35:33,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:35:33,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:35:33,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:35:33,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:35:33,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:35:33,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:35:33,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:35:33,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:35:33,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:35:33,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:35:33,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:35:33,102 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 20:35:33,129 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:35:33,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:35:33,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:35:33,130 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:35:33,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:35:33,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:35:33,132 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:35:33,132 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 20:35:33,132 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 20:35:33,133 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 20:35:33,133 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 20:35:33,133 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 20:35:33,133 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 20:35:33,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:35:33,134 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:35:33,134 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:35:33,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:35:33,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:35:33,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:35:33,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 20:35:33,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 20:35:33,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 20:35:33,136 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:35:33,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:35:33,136 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 20:35:33,136 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:35:33,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 20:35:33,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:35:33,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:35:33,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:35:33,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:35:33,139 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 20:35:33,139 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_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d84130cab59568fb669543ac086f4847eedfc87145b3c30d32e19c1d0d03b42f [2022-11-18 20:35:33,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:35:33,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:35:33,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:35:33,420 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:35:33,421 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:35:33,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c [2022-11-18 20:35:33,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/data/27b5d39ea/b627fb11bf914c4f89c03666c6d9ab0b/FLAG4a9333174 [2022-11-18 20:35:34,185 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:35:34,186 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c [2022-11-18 20:35:34,226 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/data/27b5d39ea/b627fb11bf914c4f89c03666c6d9ab0b/FLAG4a9333174 [2022-11-18 20:35:34,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/data/27b5d39ea/b627fb11bf914c4f89c03666c6d9ab0b [2022-11-18 20:35:34,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:35:34,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:35:34,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:35:34,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:35:34,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:35:34,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:35:34" (1/1) ... [2022-11-18 20:35:34,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b8fc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:34, skipping insertion in model container [2022-11-18 20:35:34,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:35:34" (1/1) ... [2022-11-18 20:35:34,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:35:34,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:35:35,024 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_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c[61393,61406] [2022-11-18 20:35:35,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:35:35,094 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:35:35,258 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_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c[61393,61406] [2022-11-18 20:35:35,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:35:35,309 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:35:35,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:35 WrapperNode [2022-11-18 20:35:35,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:35:35,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:35:35,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:35:35,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:35:35,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:35" (1/1) ... [2022-11-18 20:35:35,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:35" (1/1) ... [2022-11-18 20:35:36,312 INFO L138 Inliner]: procedures = 93, calls = 346, calls flagged for inlining = 198, calls inlined = 1875, statements flattened = 66503 [2022-11-18 20:35:36,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:35:36,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:35:36,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:35:36,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:35:36,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:35" (1/1) ... [2022-11-18 20:35:36,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:35" (1/1) ... [2022-11-18 20:35:36,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:35" (1/1) ... [2022-11-18 20:35:36,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:35" (1/1) ... [2022-11-18 20:35:36,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:35" (1/1) ... [2022-11-18 20:35:37,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:35" (1/1) ... [2022-11-18 20:35:37,722 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:35" (1/1) ... [2022-11-18 20:35:37,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:35" (1/1) ... [2022-11-18 20:35:38,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:35:38,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:35:38,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:35:38,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:35:38,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:35" (1/1) ... [2022-11-18 20:35:38,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:35:38,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:38,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:35:38,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 20:35:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:35:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:35:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:35:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:35:38,592 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:35:38,594 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:36:04,595 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:36:04,711 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:36:04,711 INFO L300 CfgBuilder]: Removed 61 assume(true) statements. [2022-11-18 20:36:04,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:36:04 BoogieIcfgContainer [2022-11-18 20:36:04,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:36:04,731 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 20:36:04,731 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 20:36:04,737 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 20:36:04,738 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:36:04,739 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:35:34" (1/3) ... [2022-11-18 20:36:04,740 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14db0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:36:04, skipping insertion in model container [2022-11-18 20:36:04,740 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:36:04,740 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:35" (2/3) ... [2022-11-18 20:36:04,741 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14db0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:36:04, skipping insertion in model container [2022-11-18 20:36:04,741 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:36:04,741 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:36:04" (3/3) ... [2022-11-18 20:36:04,742 INFO L332 chiAutomizerObserver]: Analyzing ICFG elevator_spec13_product30.cil.c [2022-11-18 20:36:05,035 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 20:36:05,036 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 20:36:05,036 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 20:36:05,036 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 20:36:05,036 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 20:36:05,036 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 20:36:05,037 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 20:36:05,037 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 20:36:05,095 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17932 states, 17931 states have (on average 1.8808209246556244) internal successors, (33725), 17931 states have internal predecessors, (33725), 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 20:36:05,674 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4072 [2022-11-18 20:36:05,674 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:36:05,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:36:05,708 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 20:36:05,708 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:36:05,708 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 20:36:05,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17932 states, 17931 states have (on average 1.8808209246556244) internal successors, (33725), 17931 states have internal predecessors, (33725), 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 20:36:05,942 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4072 [2022-11-18 20:36:05,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:36:05,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:36:05,945 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 20:36:05,946 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:36:05,962 INFO L748 eck$LassoCheckResult]: Stem: 7194#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(10, 4);call #Ultimate.allocInit(4, 5);call write~init~int(91, 5, 0, 1);call write~init~int(95, 5, 1, 1);call write~init~int(93, 5, 2, 1);call write~init~int(0, 5, 3, 1);call #Ultimate.allocInit(4, 6);call write~init~int(91, 6, 0, 1);call write~init~int(93, 6, 1, 1);call write~init~int(32, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(5, 7);call write~init~int(32, 7, 0, 1);call write~init~int(97, 7, 1, 1);call write~init~int(116, 7, 2, 1);call write~init~int(32, 7, 3, 1);call write~init~int(0, 7, 4, 1);call #Ultimate.allocInit(3, 8);call write~init~int(37, 8, 0, 1);call write~init~int(105, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(10, 9);call #Ultimate.allocInit(3, 10);call write~init~int(117, 10, 0, 1);call write~init~int(112, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(5, 11);call write~init~int(100, 11, 0, 1);call write~init~int(111, 11, 1, 1);call write~init~int(119, 11, 2, 1);call write~init~int(110, 11, 3, 1);call write~init~int(0, 11, 4, 1);call #Ultimate.allocInit(7, 12);call write~init~int(32, 12, 0, 1);call write~init~int(73, 12, 1, 1);call write~init~int(76, 12, 2, 1);call write~init~int(95, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(4, 13);call write~init~int(32, 13, 0, 1);call write~init~int(37, 13, 1, 1);call write~init~int(105, 13, 2, 1);call write~init~int(0, 13, 3, 1);call #Ultimate.allocInit(4, 14);call write~init~int(32, 14, 0, 1);call write~init~int(37, 14, 1, 1);call write~init~int(105, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(4, 15);call write~init~int(32, 15, 0, 1);call write~init~int(37, 15, 1, 1);call write~init~int(105, 15, 2, 1);call write~init~int(0, 15, 3, 1);call #Ultimate.allocInit(4, 16);call write~init~int(32, 16, 0, 1);call write~init~int(37, 16, 1, 1);call write~init~int(105, 16, 2, 1);call write~init~int(0, 16, 3, 1);call #Ultimate.allocInit(4, 17);call write~init~int(32, 17, 0, 1);call write~init~int(37, 17, 1, 1);call write~init~int(105, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(6, 18);call write~init~int(32, 18, 0, 1);call write~init~int(70, 18, 1, 1);call write~init~int(95, 18, 2, 1);call write~init~int(112, 18, 3, 1);call write~init~int(58, 18, 4, 1);call write~init~int(0, 18, 5, 1);call #Ultimate.allocInit(4, 19);call write~init~int(32, 19, 0, 1);call write~init~int(37, 19, 1, 1);call write~init~int(105, 19, 2, 1);call write~init~int(0, 19, 3, 1);call #Ultimate.allocInit(4, 20);call write~init~int(32, 20, 0, 1);call write~init~int(37, 20, 1, 1);call write~init~int(105, 20, 2, 1);call write~init~int(0, 20, 3, 1);call #Ultimate.allocInit(4, 21);call write~init~int(32, 21, 0, 1);call write~init~int(37, 21, 1, 1);call write~init~int(105, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(4, 22);call write~init~int(32, 22, 0, 1);call write~init~int(37, 22, 1, 1);call write~init~int(105, 22, 2, 1);call write~init~int(0, 22, 3, 1);call #Ultimate.allocInit(4, 23);call write~init~int(32, 23, 0, 1);call write~init~int(37, 23, 1, 1);call write~init~int(105, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(2, 24);call write~init~int(10, 24, 0, 1);call write~init~int(0, 24, 1, 1);call #Ultimate.allocInit(9, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(21, 28);call #Ultimate.allocInit(30, 29);call #Ultimate.allocInit(9, 30);call #Ultimate.allocInit(21, 31);call #Ultimate.allocInit(30, 32);call #Ultimate.allocInit(9, 33);call #Ultimate.allocInit(25, 34);call #Ultimate.allocInit(30, 35);call #Ultimate.allocInit(9, 36);call #Ultimate.allocInit(25, 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; 4316#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~7#1, main_~tmp~9#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 3926#L2983true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 16723#L2976true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;havoc valid_product_~retValue_acc~24#1;valid_product_~retValue_acc~24#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~24#1; 9521#L2991true main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 8970#L1277true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 6933#L1250true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;havoc aliceCall_~tmp~2#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 2413#L95true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 11132#L120true aliceCall_#t~ret13#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~2#1 := aliceCall_#t~ret13#1;havoc aliceCall_#t~ret13#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~2#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 17131#L530true assume 0 == initPersonOnFloor_~floor#1; 11832#L531true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 14350#L638-1true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 13119#L322true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 12583#L334-2true assume { :end_inline_callOnFloor } true; 17701#L674true assume { :end_inline_initPersonOnFloor } true; 13049#L1006true assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;havoc angelinaCall_~tmp~3#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 80#L95-1true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 14351#L120-1true angelinaCall_#t~ret14#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~3#1 := angelinaCall_#t~ret14#1;havoc angelinaCall_#t~ret14#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~3#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 6971#L530-1true assume 0 == initPersonOnFloor_~floor#1; 13025#L531-2true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 10085#L638-3true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 2908#L322-2true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 4320#L334-5true assume { :end_inline_callOnFloor } true; 9339#L674-1true assume { :end_inline_initPersonOnFloor } true; 5354#L1017true assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret84#1, timeShift_~tmp~24#1;havoc timeShift_~tmp~24#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;havoc getCurrentHeading_~retValue_acc~12#1;getCurrentHeading_~retValue_acc~12#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~12#1; 4548#L1680true __utac_acc__Specification13_spec__1_#t~ret4#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret4#1;havoc __utac_acc__Specification13_spec__1_#t~ret4#1; 17891#L851true assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;havoc areDoorsOpen_~retValue_acc~10#1;areDoorsOpen_~retValue_acc~10#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; 17122#L1637true timeShift_#t~ret84#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~24#1 := timeShift_#t~ret84#1;havoc timeShift_#t~ret84#1; 2411#L2587true assume 0 != timeShift_~tmp~24#1; 5433#L2588true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 17485#L2587-1true assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret5#1, __utac_acc__Specification13_spec__2_#t~ret6#1, __utac_acc__Specification13_spec__2_#t~ret7#1, __utac_acc__Specification13_spec__2_#t~ret8#1, __utac_acc__Specification13_spec__2_#t~ret9#1, __utac_acc__Specification13_spec__2_#t~ret10#1, __utac_acc__Specification13_spec__2_~tmp~0#1, __utac_acc__Specification13_spec__2_~tmp___0~0#1, __utac_acc__Specification13_spec__2_~tmp___1~0#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 5072#L869true assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 3637#L870true 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~22#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~22#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 12370#L2807true assume 1 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i~3#1 := 0;existInLiftCallsInDirection_~i~3#1 := 1 + ~currentFloorID~0; 6306#L2811-2true [2022-11-18 20:36:05,963 INFO L750 eck$LassoCheckResult]: Loop: 6306#L2811-2true assume !false; 4903#L2812true assume existInLiftCallsInDirection_~i~3#1 < 5; 507#L2813true assume !(0 == existInLiftCallsInDirection_~i~3#1); 7016#L2826true assume !(1 == existInLiftCallsInDirection_~i~3#1); 7240#L2835true assume !(2 == existInLiftCallsInDirection_~i~3#1); 3716#L2844true assume !(3 == existInLiftCallsInDirection_~i~3#1); 9525#L2853true assume !(4 == existInLiftCallsInDirection_~i~3#1); 975#L2854-1true existInLiftCallsInDirection_~i~3#1 := 1 + existInLiftCallsInDirection_~i~3#1; 6306#L2811-2true [2022-11-18 20:36:05,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:05,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1529622645, now seen corresponding path program 1 times [2022-11-18 20:36:05,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:05,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519310090] [2022-11-18 20:36:05,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:05,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:06,575 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 20:36:06,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:06,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519310090] [2022-11-18 20:36:06,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519310090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:06,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:06,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:36:06,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845417842] [2022-11-18 20:36:06,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:06,590 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:36:06,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:06,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1374005635, now seen corresponding path program 1 times [2022-11-18 20:36:06,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:06,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975814426] [2022-11-18 20:36:06,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:06,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:06,608 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:36:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:06,647 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:36:06,714 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:36:06,715 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:36:06,715 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:36:06,715 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:36:06,715 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:36:06,716 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:36:06,716 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:36:06,717 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:36:06,717 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product30.cil.c_Iteration1_Loop [2022-11-18 20:36:06,717 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:36:06,717 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:36:06,745 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 20:36:06,851 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:36:06,851 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:36:06,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:36:06,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:36:06,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:36:06,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:36:06,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:36:06,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 20:36:06,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:36:06,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:36:06,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:36:06,952 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:36:06,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:36:06,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:36:06,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 20:36:07,000 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:36:07,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:36:07,011 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:36:07,011 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:36:07,011 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:36:07,011 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:36:07,012 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:36:07,012 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:36:07,012 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:36:07,012 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:36:07,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: elevator_spec13_product30.cil.c_Iteration1_Loop [2022-11-18 20:36:07,012 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:36:07,012 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:36:07,013 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 20:36:07,109 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:36:07,115 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:36:07,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:36:07,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:36:07,118 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:36:07,127 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 20:36:07,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 20:36:07,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:36:07,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:36:07,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:36:07,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:36:07,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:36:07,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:36:07,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:36:07,155 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:36:07,165 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 20:36:07,165 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 20:36:07,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:36:07,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:36:07,171 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:36:07,183 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:36:07,184 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:36:07,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 20:36:07,184 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:36:07,186 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_existInLiftCallsInDirection_~i~3#1) = -1*ULTIMATE.start_existInLiftCallsInDirection_~i~3#1 Supporting invariants [] [2022-11-18 20:36:07,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:36:07,195 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:36:07,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:07,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:36:07,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:36:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:07,478 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:36:07,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:36:07,739 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 20:36:07,794 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 20:36:07,825 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17932 states, 17931 states have (on average 1.8808209246556244) internal successors, (33725), 17931 states have internal predecessors, (33725), 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 20:36:08,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96cb34bf-b4a3-45f4-a295-1b8cea10b9a1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:36:19,801 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17932 states, 17931 states have (on average 1.8808209246556244) internal successors, (33725), 17931 states have internal predecessors, (33725), 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 211046 states and 396793 transitions. Complement of second has 18 states. [2022-11-18 20:36:19,808 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 20:36:19,817 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 20:36:20,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 215267 transitions. [2022-11-18 20:36:20,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 215267 transitions. Stem has 34 letters. Loop has 8 letters. [2022-11-18 20:36:20,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:36:20,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 215267 transitions. Stem has 42 letters. Loop has 8 letters. [2022-11-18 20:36:20,171 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:36:20,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 215267 transitions. Stem has 34 letters. Loop has 16 letters. [2022-11-18 20:36:20,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:36:20,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 211046 states and 396793 transitions. [2022-11-18 20:36:22,016 INFO L131 ngComponentsAnalysis]: Automaton has 66 accepting balls. 28728 [2022-11-18 20:36:23,149 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 211046 states to 114375 states and 214990 transitions. [2022-11-18 20:36:23,151 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 114345 [2022-11-18 20:36:23,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 114346 [2022-11-18 20:36:23,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114375 states and 214990 transitions. [2022-11-18 20:36:23,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:36:23,306 INFO L218 hiAutomatonCegarLoop]: Abstraction has 114375 states and 214990 transitions. [2022-11-18 20:36:23,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114375 states and 214990 transitions. [2022-11-18 20:36:24,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114375 to 32246. [2022-11-18 20:36:24,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32246 states, 32246 states have (on average 1.8769769893940333) internal successors, (60525), 32245 states have internal predecessors, (60525), 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 20:36:24,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32246 states to 32246 states and 60525 transitions. [2022-11-18 20:36:24,549 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32246 states and 60525 transitions. [2022-11-18 20:36:24,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:24,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:36:24,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:36:24,555 INFO L87 Difference]: Start difference. First operand 32246 states and 60525 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 20:36:26,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:36:26,050 INFO L93 Difference]: Finished difference Result 46585 states and 87289 transitions. [2022-11-18 20:36:26,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46585 states and 87289 transitions. [2022-11-18 20:36:26,312 INFO L131 ngComponentsAnalysis]: Automaton has 78 accepting balls. 15466 [2022-11-18 20:36:26,898 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46585 states to 46572 states and 87276 transitions. [2022-11-18 20:36:26,899 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46553 [2022-11-18 20:36:26,957 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46553 [2022-11-18 20:36:26,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46572 states and 87276 transitions. [2022-11-18 20:36:27,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:36:27,052 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46572 states and 87276 transitions. [2022-11-18 20:36:27,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46572 states and 87276 transitions. [2022-11-18 20:36:27,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46572 to 17929. [2022-11-18 20:36:27,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17929 states, 17929 states have (on average 1.874003011880194) internal successors, (33599), 17928 states have internal predecessors, (33599), 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 20:36:27,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17929 states to 17929 states and 33599 transitions. [2022-11-18 20:36:27,515 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17929 states and 33599 transitions. [2022-11-18 20:36:27,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:36:27,516 INFO L428 stractBuchiCegarLoop]: Abstraction has 17929 states and 33599 transitions. [2022-11-18 20:36:27,516 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 20:36:27,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17929 states and 33599 transitions. [2022-11-18 20:36:27,582 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4072 [2022-11-18 20:36:27,582 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:36:27,582 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:36:27,585 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 20:36:27,586 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:36:27,586 INFO L748 eck$LassoCheckResult]: Stem: 320412#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(10, 4);call #Ultimate.allocInit(4, 5);call write~init~int(91, 5, 0, 1);call write~init~int(95, 5, 1, 1);call write~init~int(93, 5, 2, 1);call write~init~int(0, 5, 3, 1);call #Ultimate.allocInit(4, 6);call write~init~int(91, 6, 0, 1);call write~init~int(93, 6, 1, 1);call write~init~int(32, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(5, 7);call write~init~int(32, 7, 0, 1);call write~init~int(97, 7, 1, 1);call write~init~int(116, 7, 2, 1);call write~init~int(32, 7, 3, 1);call write~init~int(0, 7, 4, 1);call #Ultimate.allocInit(3, 8);call write~init~int(37, 8, 0, 1);call write~init~int(105, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(10, 9);call #Ultimate.allocInit(3, 10);call write~init~int(117, 10, 0, 1);call write~init~int(112, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(5, 11);call write~init~int(100, 11, 0, 1);call write~init~int(111, 11, 1, 1);call write~init~int(119, 11, 2, 1);call write~init~int(110, 11, 3, 1);call write~init~int(0, 11, 4, 1);call #Ultimate.allocInit(7, 12);call write~init~int(32, 12, 0, 1);call write~init~int(73, 12, 1, 1);call write~init~int(76, 12, 2, 1);call write~init~int(95, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(4, 13);call write~init~int(32, 13, 0, 1);call write~init~int(37, 13, 1, 1);call write~init~int(105, 13, 2, 1);call write~init~int(0, 13, 3, 1);call #Ultimate.allocInit(4, 14);call write~init~int(32, 14, 0, 1);call write~init~int(37, 14, 1, 1);call write~init~int(105, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(4, 15);call write~init~int(32, 15, 0, 1);call write~init~int(37, 15, 1, 1);call write~init~int(105, 15, 2, 1);call write~init~int(0, 15, 3, 1);call #Ultimate.allocInit(4, 16);call write~init~int(32, 16, 0, 1);call write~init~int(37, 16, 1, 1);call write~init~int(105, 16, 2, 1);call write~init~int(0, 16, 3, 1);call #Ultimate.allocInit(4, 17);call write~init~int(32, 17, 0, 1);call write~init~int(37, 17, 1, 1);call write~init~int(105, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(6, 18);call write~init~int(32, 18, 0, 1);call write~init~int(70, 18, 1, 1);call write~init~int(95, 18, 2, 1);call write~init~int(112, 18, 3, 1);call write~init~int(58, 18, 4, 1);call write~init~int(0, 18, 5, 1);call #Ultimate.allocInit(4, 19);call write~init~int(32, 19, 0, 1);call write~init~int(37, 19, 1, 1);call write~init~int(105, 19, 2, 1);call write~init~int(0, 19, 3, 1);call #Ultimate.allocInit(4, 20);call write~init~int(32, 20, 0, 1);call write~init~int(37, 20, 1, 1);call write~init~int(105, 20, 2, 1);call write~init~int(0, 20, 3, 1);call #Ultimate.allocInit(4, 21);call write~init~int(32, 21, 0, 1);call write~init~int(37, 21, 1, 1);call write~init~int(105, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(4, 22);call write~init~int(32, 22, 0, 1);call write~init~int(37, 22, 1, 1);call write~init~int(105, 22, 2, 1);call write~init~int(0, 22, 3, 1);call #Ultimate.allocInit(4, 23);call write~init~int(32, 23, 0, 1);call write~init~int(37, 23, 1, 1);call write~init~int(105, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(2, 24);call write~init~int(10, 24, 0, 1);call write~init~int(0, 24, 1, 1);call #Ultimate.allocInit(9, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(21, 28);call #Ultimate.allocInit(30, 29);call #Ultimate.allocInit(9, 30);call #Ultimate.allocInit(21, 31);call #Ultimate.allocInit(30, 32);call #Ultimate.allocInit(9, 33);call #Ultimate.allocInit(25, 34);call #Ultimate.allocInit(30, 35);call #Ultimate.allocInit(9, 36);call #Ultimate.allocInit(25, 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; 316583#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~7#1, main_~tmp~9#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 315984#L2983 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 315985#L2976 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;havoc valid_product_~retValue_acc~24#1;valid_product_~retValue_acc~24#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~24#1; 322606#L2991 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 322175#L1277 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 320134#L1250 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;havoc aliceCall_~tmp~2#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 313399#L95 assume !(0 == getOrigin_~person#1); 309722#L99 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 309723#L120 aliceCall_#t~ret13#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~2#1 := aliceCall_#t~ret13#1;havoc aliceCall_#t~ret13#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~2#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 323764#L530 assume 0 == initPersonOnFloor_~floor#1; 324232#L531 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 308128#L638-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 324878#L322 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 308358#L334-2 assume { :end_inline_callOnFloor } true; 324607#L674 assume { :end_inline_initPersonOnFloor } true; 324842#L1006 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;havoc angelinaCall_~tmp~3#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 308211#L95-1 assume !(0 == getOrigin_~person#1); 308212#L99-1 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 308962#L120-1 angelinaCall_#t~ret14#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~3#1 := angelinaCall_#t~ret14#1;havoc angelinaCall_#t~ret14#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~3#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 320180#L530-1 assume 0 == initPersonOnFloor_~floor#1; 320181#L531-2 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 308491#L638-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 314272#L322-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 309036#L334-5 assume { :end_inline_callOnFloor } true; 316590#L674-1 assume { :end_inline_initPersonOnFloor } true; 318095#L1017 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret84#1, timeShift_~tmp~24#1;havoc timeShift_~tmp~24#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;havoc getCurrentHeading_~retValue_acc~12#1;getCurrentHeading_~retValue_acc~12#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~12#1; 316924#L1680 __utac_acc__Specification13_spec__1_#t~ret4#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret4#1;havoc __utac_acc__Specification13_spec__1_#t~ret4#1; 316925#L851 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;havoc areDoorsOpen_~retValue_acc~10#1;areDoorsOpen_~retValue_acc~10#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; 325876#L1637 timeShift_#t~ret84#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~24#1 := timeShift_#t~ret84#1;havoc timeShift_#t~ret84#1; 313393#L2587 assume 0 != timeShift_~tmp~24#1; 313394#L2588 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 314965#L2587-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret5#1, __utac_acc__Specification13_spec__2_#t~ret6#1, __utac_acc__Specification13_spec__2_#t~ret7#1, __utac_acc__Specification13_spec__2_#t~ret8#1, __utac_acc__Specification13_spec__2_#t~ret9#1, __utac_acc__Specification13_spec__2_#t~ret10#1, __utac_acc__Specification13_spec__2_~tmp~0#1, __utac_acc__Specification13_spec__2_~tmp___0~0#1, __utac_acc__Specification13_spec__2_~tmp___1~0#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 317680#L869 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 315500#L870 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~22#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~22#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 315501#L2807 assume !(1 == existInLiftCallsInDirection_~d#1); 317725#L2873 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 317726#L2877-2 [2022-11-18 20:36:27,587 INFO L750 eck$LassoCheckResult]: Loop: 317726#L2877-2 assume !false; 314225#L2878 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 314226#L2879 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 312508#L2886-2 assume !false; 312509#L2887 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 313475#L2945 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 317726#L2877-2 [2022-11-18 20:36:27,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:27,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1898401259, now seen corresponding path program 1 times [2022-11-18 20:36:27,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:27,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50511558] [2022-11-18 20:36:27,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:27,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:27,737 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 20:36:27,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:27,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50511558] [2022-11-18 20:36:27,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50511558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:27,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:27,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:36:27,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831019539] [2022-11-18 20:36:27,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:27,740 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:36:27,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:27,740 INFO L85 PathProgramCache]: Analyzing trace with hash 2078933803, now seen corresponding path program 1 times [2022-11-18 20:36:27,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:27,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248374995] [2022-11-18 20:36:27,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:27,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:27,748 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:36:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:27,756 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:36:27,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:27,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:36:27,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:36:27,808 INFO L87 Difference]: Start difference. First operand 17929 states and 33599 transitions. cyclomatic complexity: 15704 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 20:36:29,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:36:29,679 INFO L93 Difference]: Finished difference Result 53570 states and 100367 transitions. [2022-11-18 20:36:29,679 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53570 states and 100367 transitions. [2022-11-18 20:36:29,999 INFO L131 ngComponentsAnalysis]: Automaton has 99 accepting balls. 12216 [2022-11-18 20:36:30,630 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53570 states to 53570 states and 100367 transitions. [2022-11-18 20:36:30,630 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53513 [2022-11-18 20:36:30,679 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53513 [2022-11-18 20:36:30,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53570 states and 100367 transitions. [2022-11-18 20:36:30,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:36:30,681 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53570 states and 100367 transitions. [2022-11-18 20:36:30,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53570 states and 100367 transitions. [2022-11-18 20:36:31,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53570 to 17944. [2022-11-18 20:36:31,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17944 states, 17944 states have (on average 1.873272403031654) internal successors, (33614), 17943 states have internal predecessors, (33614), 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 20:36:31,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17944 states to 17944 states and 33614 transitions. [2022-11-18 20:36:31,166 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17944 states and 33614 transitions. [2022-11-18 20:36:31,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:36:31,169 INFO L428 stractBuchiCegarLoop]: Abstraction has 17944 states and 33614 transitions. [2022-11-18 20:36:31,169 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 20:36:31,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17944 states and 33614 transitions. [2022-11-18 20:36:31,238 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4072 [2022-11-18 20:36:31,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:36:31,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:36:31,249 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 20:36:31,250 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:36:31,250 INFO L748 eck$LassoCheckResult]: Stem: 391918#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(10, 4);call #Ultimate.allocInit(4, 5);call write~init~int(91, 5, 0, 1);call write~init~int(95, 5, 1, 1);call write~init~int(93, 5, 2, 1);call write~init~int(0, 5, 3, 1);call #Ultimate.allocInit(4, 6);call write~init~int(91, 6, 0, 1);call write~init~int(93, 6, 1, 1);call write~init~int(32, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(5, 7);call write~init~int(32, 7, 0, 1);call write~init~int(97, 7, 1, 1);call write~init~int(116, 7, 2, 1);call write~init~int(32, 7, 3, 1);call write~init~int(0, 7, 4, 1);call #Ultimate.allocInit(3, 8);call write~init~int(37, 8, 0, 1);call write~init~int(105, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(10, 9);call #Ultimate.allocInit(3, 10);call write~init~int(117, 10, 0, 1);call write~init~int(112, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(5, 11);call write~init~int(100, 11, 0, 1);call write~init~int(111, 11, 1, 1);call write~init~int(119, 11, 2, 1);call write~init~int(110, 11, 3, 1);call write~init~int(0, 11, 4, 1);call #Ultimate.allocInit(7, 12);call write~init~int(32, 12, 0, 1);call write~init~int(73, 12, 1, 1);call write~init~int(76, 12, 2, 1);call write~init~int(95, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(4, 13);call write~init~int(32, 13, 0, 1);call write~init~int(37, 13, 1, 1);call write~init~int(105, 13, 2, 1);call write~init~int(0, 13, 3, 1);call #Ultimate.allocInit(4, 14);call write~init~int(32, 14, 0, 1);call write~init~int(37, 14, 1, 1);call write~init~int(105, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(4, 15);call write~init~int(32, 15, 0, 1);call write~init~int(37, 15, 1, 1);call write~init~int(105, 15, 2, 1);call write~init~int(0, 15, 3, 1);call #Ultimate.allocInit(4, 16);call write~init~int(32, 16, 0, 1);call write~init~int(37, 16, 1, 1);call write~init~int(105, 16, 2, 1);call write~init~int(0, 16, 3, 1);call #Ultimate.allocInit(4, 17);call write~init~int(32, 17, 0, 1);call write~init~int(37, 17, 1, 1);call write~init~int(105, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(6, 18);call write~init~int(32, 18, 0, 1);call write~init~int(70, 18, 1, 1);call write~init~int(95, 18, 2, 1);call write~init~int(112, 18, 3, 1);call write~init~int(58, 18, 4, 1);call write~init~int(0, 18, 5, 1);call #Ultimate.allocInit(4, 19);call write~init~int(32, 19, 0, 1);call write~init~int(37, 19, 1, 1);call write~init~int(105, 19, 2, 1);call write~init~int(0, 19, 3, 1);call #Ultimate.allocInit(4, 20);call write~init~int(32, 20, 0, 1);call write~init~int(37, 20, 1, 1);call write~init~int(105, 20, 2, 1);call write~init~int(0, 20, 3, 1);call #Ultimate.allocInit(4, 21);call write~init~int(32, 21, 0, 1);call write~init~int(37, 21, 1, 1);call write~init~int(105, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(4, 22);call write~init~int(32, 22, 0, 1);call write~init~int(37, 22, 1, 1);call write~init~int(105, 22, 2, 1);call write~init~int(0, 22, 3, 1);call #Ultimate.allocInit(4, 23);call write~init~int(32, 23, 0, 1);call write~init~int(37, 23, 1, 1);call write~init~int(105, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(2, 24);call write~init~int(10, 24, 0, 1);call write~init~int(0, 24, 1, 1);call #Ultimate.allocInit(9, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(21, 28);call #Ultimate.allocInit(30, 29);call #Ultimate.allocInit(9, 30);call #Ultimate.allocInit(21, 31);call #Ultimate.allocInit(30, 32);call #Ultimate.allocInit(9, 33);call #Ultimate.allocInit(25, 34);call #Ultimate.allocInit(30, 35);call #Ultimate.allocInit(9, 36);call #Ultimate.allocInit(25, 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; 388090#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~7#1, main_~tmp~9#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 387491#L2983 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 387492#L2976 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;havoc valid_product_~retValue_acc~24#1;valid_product_~retValue_acc~24#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~24#1; 394111#L2991 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 393682#L1277 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 391641#L1250 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;havoc aliceCall_~tmp~2#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 384906#L95 assume !(0 == getOrigin_~person#1); 381224#L99 assume !(1 == getOrigin_~person#1); 381226#L103 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 384581#L120 aliceCall_#t~ret13#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~2#1 := aliceCall_#t~ret13#1;havoc aliceCall_#t~ret13#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~2#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 395271#L530 assume 0 == initPersonOnFloor_~floor#1; 395738#L531 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 379636#L638-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 396387#L322 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 379866#L334-2 assume { :end_inline_callOnFloor } true; 396114#L674 assume { :end_inline_initPersonOnFloor } true; 396351#L1006 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;havoc angelinaCall_~tmp~3#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 379713#L95-1 assume !(0 == getOrigin_~person#1); 379714#L99-1 assume !(1 == getOrigin_~person#1); 391988#L103-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 380469#L120-1 angelinaCall_#t~ret14#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~3#1 := angelinaCall_#t~ret14#1;havoc angelinaCall_#t~ret14#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~3#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 396844#L530-1 assume 0 == initPersonOnFloor_~floor#1; 396343#L531-2 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 379999#L638-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 385779#L322-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 380543#L334-5 assume { :end_inline_callOnFloor } true; 388097#L674-1 assume { :end_inline_initPersonOnFloor } true; 389602#L1017 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret84#1, timeShift_~tmp~24#1;havoc timeShift_~tmp~24#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;havoc getCurrentHeading_~retValue_acc~12#1;getCurrentHeading_~retValue_acc~12#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~12#1; 388431#L1680 __utac_acc__Specification13_spec__1_#t~ret4#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret4#1;havoc __utac_acc__Specification13_spec__1_#t~ret4#1; 388432#L851 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;havoc areDoorsOpen_~retValue_acc~10#1;areDoorsOpen_~retValue_acc~10#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; 397388#L1637 timeShift_#t~ret84#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~24#1 := timeShift_#t~ret84#1;havoc timeShift_#t~ret84#1; 384900#L2587 assume 0 != timeShift_~tmp~24#1; 384901#L2588 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 386473#L2587-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret5#1, __utac_acc__Specification13_spec__2_#t~ret6#1, __utac_acc__Specification13_spec__2_#t~ret7#1, __utac_acc__Specification13_spec__2_#t~ret8#1, __utac_acc__Specification13_spec__2_#t~ret9#1, __utac_acc__Specification13_spec__2_#t~ret10#1, __utac_acc__Specification13_spec__2_~tmp~0#1, __utac_acc__Specification13_spec__2_~tmp___0~0#1, __utac_acc__Specification13_spec__2_~tmp___1~0#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 389187#L869 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 387006#L870 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~22#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~22#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 387007#L2807 assume !(1 == existInLiftCallsInDirection_~d#1); 389230#L2873 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 389231#L2877-2 [2022-11-18 20:36:31,251 INFO L750 eck$LassoCheckResult]: Loop: 389231#L2877-2 assume !false; 385730#L2878 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 385731#L2879 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 384014#L2886-2 assume !false; 384015#L2887 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 384980#L2945 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 389231#L2877-2 [2022-11-18 20:36:31,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:31,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1378400671, now seen corresponding path program 1 times [2022-11-18 20:36:31,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:31,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943748854] [2022-11-18 20:36:31,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:31,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:31,403 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 20:36:31,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:31,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943748854] [2022-11-18 20:36:31,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943748854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:31,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:31,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:36:31,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713496697] [2022-11-18 20:36:31,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:31,405 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:36:31,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:31,406 INFO L85 PathProgramCache]: Analyzing trace with hash 2078933803, now seen corresponding path program 2 times [2022-11-18 20:36:31,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:31,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842194042] [2022-11-18 20:36:31,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:31,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:31,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:36:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:31,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:36:31,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:31,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:36:31,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:36:31,455 INFO L87 Difference]: Start difference. First operand 17944 states and 33614 transitions. cyclomatic complexity: 15704 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 20:36:32,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:36:32,535 INFO L93 Difference]: Finished difference Result 35709 states and 66901 transitions. [2022-11-18 20:36:32,535 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35709 states and 66901 transitions. [2022-11-18 20:36:32,663 INFO L131 ngComponentsAnalysis]: Automaton has 66 accepting balls. 8144 [2022-11-18 20:36:32,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35709 states to 35709 states and 66901 transitions. [2022-11-18 20:36:32,799 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35671 [2022-11-18 20:36:32,834 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35671 [2022-11-18 20:36:32,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35709 states and 66901 transitions. [2022-11-18 20:36:32,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:36:32,835 INFO L218 hiAutomatonCegarLoop]: Abstraction has 35709 states and 66901 transitions. [2022-11-18 20:36:32,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35709 states and 66901 transitions. [2022-11-18 20:36:33,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35709 to 17910. [2022-11-18 20:36:33,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17910 states, 17910 states have (on average 1.8730318257956449) internal successors, (33546), 17909 states have internal predecessors, (33546), 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 20:36:33,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17910 states to 17910 states and 33546 transitions. [2022-11-18 20:36:33,209 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17910 states and 33546 transitions. [2022-11-18 20:36:33,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:36:33,210 INFO L428 stractBuchiCegarLoop]: Abstraction has 17910 states and 33546 transitions. [2022-11-18 20:36:33,211 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 20:36:33,211 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17910 states and 33546 transitions. [2022-11-18 20:36:33,282 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4072 [2022-11-18 20:36:33,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:36:33,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:36:33,285 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 20:36:33,285 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:36:33,285 INFO L748 eck$LassoCheckResult]: Stem: 445559#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(10, 4);call #Ultimate.allocInit(4, 5);call write~init~int(91, 5, 0, 1);call write~init~int(95, 5, 1, 1);call write~init~int(93, 5, 2, 1);call write~init~int(0, 5, 3, 1);call #Ultimate.allocInit(4, 6);call write~init~int(91, 6, 0, 1);call write~init~int(93, 6, 1, 1);call write~init~int(32, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(5, 7);call write~init~int(32, 7, 0, 1);call write~init~int(97, 7, 1, 1);call write~init~int(116, 7, 2, 1);call write~init~int(32, 7, 3, 1);call write~init~int(0, 7, 4, 1);call #Ultimate.allocInit(3, 8);call write~init~int(37, 8, 0, 1);call write~init~int(105, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(10, 9);call #Ultimate.allocInit(3, 10);call write~init~int(117, 10, 0, 1);call write~init~int(112, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(5, 11);call write~init~int(100, 11, 0, 1);call write~init~int(111, 11, 1, 1);call write~init~int(119, 11, 2, 1);call write~init~int(110, 11, 3, 1);call write~init~int(0, 11, 4, 1);call #Ultimate.allocInit(7, 12);call write~init~int(32, 12, 0, 1);call write~init~int(73, 12, 1, 1);call write~init~int(76, 12, 2, 1);call write~init~int(95, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(4, 13);call write~init~int(32, 13, 0, 1);call write~init~int(37, 13, 1, 1);call write~init~int(105, 13, 2, 1);call write~init~int(0, 13, 3, 1);call #Ultimate.allocInit(4, 14);call write~init~int(32, 14, 0, 1);call write~init~int(37, 14, 1, 1);call write~init~int(105, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(4, 15);call write~init~int(32, 15, 0, 1);call write~init~int(37, 15, 1, 1);call write~init~int(105, 15, 2, 1);call write~init~int(0, 15, 3, 1);call #Ultimate.allocInit(4, 16);call write~init~int(32, 16, 0, 1);call write~init~int(37, 16, 1, 1);call write~init~int(105, 16, 2, 1);call write~init~int(0, 16, 3, 1);call #Ultimate.allocInit(4, 17);call write~init~int(32, 17, 0, 1);call write~init~int(37, 17, 1, 1);call write~init~int(105, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(6, 18);call write~init~int(32, 18, 0, 1);call write~init~int(70, 18, 1, 1);call write~init~int(95, 18, 2, 1);call write~init~int(112, 18, 3, 1);call write~init~int(58, 18, 4, 1);call write~init~int(0, 18, 5, 1);call #Ultimate.allocInit(4, 19);call write~init~int(32, 19, 0, 1);call write~init~int(37, 19, 1, 1);call write~init~int(105, 19, 2, 1);call write~init~int(0, 19, 3, 1);call #Ultimate.allocInit(4, 20);call write~init~int(32, 20, 0, 1);call write~init~int(37, 20, 1, 1);call write~init~int(105, 20, 2, 1);call write~init~int(0, 20, 3, 1);call #Ultimate.allocInit(4, 21);call write~init~int(32, 21, 0, 1);call write~init~int(37, 21, 1, 1);call write~init~int(105, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(4, 22);call write~init~int(32, 22, 0, 1);call write~init~int(37, 22, 1, 1);call write~init~int(105, 22, 2, 1);call write~init~int(0, 22, 3, 1);call #Ultimate.allocInit(4, 23);call write~init~int(32, 23, 0, 1);call write~init~int(37, 23, 1, 1);call write~init~int(105, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(2, 24);call write~init~int(10, 24, 0, 1);call write~init~int(0, 24, 1, 1);call #Ultimate.allocInit(9, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(21, 28);call #Ultimate.allocInit(30, 29);call #Ultimate.allocInit(9, 30);call #Ultimate.allocInit(21, 31);call #Ultimate.allocInit(30, 32);call #Ultimate.allocInit(9, 33);call #Ultimate.allocInit(25, 34);call #Ultimate.allocInit(30, 35);call #Ultimate.allocInit(9, 36);call #Ultimate.allocInit(25, 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; 441735#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~7#1, main_~tmp~9#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 441136#L2983 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 441137#L2976 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;havoc valid_product_~retValue_acc~24#1;valid_product_~retValue_acc~24#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~24#1; 447752#L2991 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 447323#L1277 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 445282#L1250 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;havoc aliceCall_~tmp~2#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 438557#L95 assume !(0 == getOrigin_~person#1); 434881#L99 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 434882#L120 aliceCall_#t~ret13#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~2#1 := aliceCall_#t~ret13#1;havoc aliceCall_#t~ret13#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~2#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 448909#L530 assume !(0 == initPersonOnFloor_~floor#1); 449657#L557 assume !(1 == initPersonOnFloor_~floor#1); 436860#L584 assume !(2 == initPersonOnFloor_~floor#1); 436861#L611 assume 3 == initPersonOnFloor_~floor#1; 448375#L612 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_3~0 := 1; 433295#L638-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 450017#L322 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 433525#L334-2 assume { :end_inline_callOnFloor } true; 449748#L674 assume { :end_inline_initPersonOnFloor } true; 449981#L1006 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;havoc angelinaCall_~tmp~3#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 433372#L95-1 assume !(0 == getOrigin_~person#1); 433373#L99-1 assume !(1 == getOrigin_~person#1); 445629#L103-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 434126#L120-1 angelinaCall_#t~ret14#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~3#1 := angelinaCall_#t~ret14#1;havoc angelinaCall_#t~ret14#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~3#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 451055#L530-1 assume 0 == initPersonOnFloor_~floor#1; 449975#L531-2 assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 433658#L638-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 439428#L322-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 434200#L334-5 assume { :end_inline_callOnFloor } true; 441742#L674-1 assume { :end_inline_initPersonOnFloor } true; 443245#L1017 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret84#1, timeShift_~tmp~24#1;havoc timeShift_~tmp~24#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;havoc getCurrentHeading_~retValue_acc~12#1;getCurrentHeading_~retValue_acc~12#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~12#1; 442076#L1680 __utac_acc__Specification13_spec__1_#t~ret4#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret4#1;havoc __utac_acc__Specification13_spec__1_#t~ret4#1; 442077#L851 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;havoc areDoorsOpen_~retValue_acc~10#1;areDoorsOpen_~retValue_acc~10#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; 451016#L1637 timeShift_#t~ret84#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~24#1 := timeShift_#t~ret84#1;havoc timeShift_#t~ret84#1; 438551#L2587 assume 0 != timeShift_~tmp~24#1; 438552#L2588 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 440120#L2587-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret5#1, __utac_acc__Specification13_spec__2_#t~ret6#1, __utac_acc__Specification13_spec__2_#t~ret7#1, __utac_acc__Specification13_spec__2_#t~ret8#1, __utac_acc__Specification13_spec__2_#t~ret9#1, __utac_acc__Specification13_spec__2_#t~ret10#1, __utac_acc__Specification13_spec__2_~tmp~0#1, __utac_acc__Specification13_spec__2_~tmp___0~0#1, __utac_acc__Specification13_spec__2_~tmp___1~0#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 442830#L869 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 440653#L870 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~22#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~22#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 440654#L2807 assume !(1 == existInLiftCallsInDirection_~d#1); 442873#L2873 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 442874#L2877-2 [2022-11-18 20:36:33,286 INFO L750 eck$LassoCheckResult]: Loop: 442874#L2877-2 assume !false; 439379#L2878 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 439380#L2879 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 437668#L2886-2 assume !false; 437669#L2887 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 438631#L2945 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 442874#L2877-2 [2022-11-18 20:36:33,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:33,287 INFO L85 PathProgramCache]: Analyzing trace with hash 368657234, now seen corresponding path program 1 times [2022-11-18 20:36:33,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:33,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580593343] [2022-11-18 20:36:33,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:33,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:33,460 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 20:36:33,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:33,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580593343] [2022-11-18 20:36:33,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580593343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:33,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:33,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:36:33,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34203654] [2022-11-18 20:36:33,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:33,463 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:36:33,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:33,463 INFO L85 PathProgramCache]: Analyzing trace with hash 2078933803, now seen corresponding path program 3 times [2022-11-18 20:36:33,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:33,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434303654] [2022-11-18 20:36:33,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:33,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:33,473 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:36:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:33,485 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:36:33,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:33,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:36:33,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:36:33,515 INFO L87 Difference]: Start difference. First operand 17910 states and 33546 transitions. cyclomatic complexity: 15670 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 20:36:34,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:36:34,577 INFO L93 Difference]: Finished difference Result 25046 states and 46910 transitions. [2022-11-18 20:36:34,577 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25046 states and 46910 transitions. [2022-11-18 20:36:34,689 INFO L131 ngComponentsAnalysis]: Automaton has 42 accepting balls. 7780 [2022-11-18 20:36:34,782 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25046 states to 25046 states and 46910 transitions. [2022-11-18 20:36:34,782 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25027 [2022-11-18 20:36:34,804 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25027 [2022-11-18 20:36:34,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25046 states and 46910 transitions. [2022-11-18 20:36:34,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:36:34,836 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25046 states and 46910 transitions. [2022-11-18 20:36:34,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25046 states and 46910 transitions. [2022-11-18 20:36:35,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25046 to 17910. [2022-11-18 20:36:35,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17910 states, 17910 states have (on average 1.8726968174204355) internal successors, (33540), 17909 states have internal predecessors, (33540), 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 20:36:35,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17910 states to 17910 states and 33540 transitions. [2022-11-18 20:36:35,162 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17910 states and 33540 transitions. [2022-11-18 20:36:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:36:35,165 INFO L428 stractBuchiCegarLoop]: Abstraction has 17910 states and 33540 transitions. [2022-11-18 20:36:35,165 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 20:36:35,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17910 states and 33540 transitions. [2022-11-18 20:36:35,234 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4072 [2022-11-18 20:36:35,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:36:35,235 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:36:35,237 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 20:36:35,237 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:36:35,239 INFO L748 eck$LassoCheckResult]: Stem: 488527#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(10, 4);call #Ultimate.allocInit(4, 5);call write~init~int(91, 5, 0, 1);call write~init~int(95, 5, 1, 1);call write~init~int(93, 5, 2, 1);call write~init~int(0, 5, 3, 1);call #Ultimate.allocInit(4, 6);call write~init~int(91, 6, 0, 1);call write~init~int(93, 6, 1, 1);call write~init~int(32, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(5, 7);call write~init~int(32, 7, 0, 1);call write~init~int(97, 7, 1, 1);call write~init~int(116, 7, 2, 1);call write~init~int(32, 7, 3, 1);call write~init~int(0, 7, 4, 1);call #Ultimate.allocInit(3, 8);call write~init~int(37, 8, 0, 1);call write~init~int(105, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(10, 9);call #Ultimate.allocInit(3, 10);call write~init~int(117, 10, 0, 1);call write~init~int(112, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(5, 11);call write~init~int(100, 11, 0, 1);call write~init~int(111, 11, 1, 1);call write~init~int(119, 11, 2, 1);call write~init~int(110, 11, 3, 1);call write~init~int(0, 11, 4, 1);call #Ultimate.allocInit(7, 12);call write~init~int(32, 12, 0, 1);call write~init~int(73, 12, 1, 1);call write~init~int(76, 12, 2, 1);call write~init~int(95, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(4, 13);call write~init~int(32, 13, 0, 1);call write~init~int(37, 13, 1, 1);call write~init~int(105, 13, 2, 1);call write~init~int(0, 13, 3, 1);call #Ultimate.allocInit(4, 14);call write~init~int(32, 14, 0, 1);call write~init~int(37, 14, 1, 1);call write~init~int(105, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(4, 15);call write~init~int(32, 15, 0, 1);call write~init~int(37, 15, 1, 1);call write~init~int(105, 15, 2, 1);call write~init~int(0, 15, 3, 1);call #Ultimate.allocInit(4, 16);call write~init~int(32, 16, 0, 1);call write~init~int(37, 16, 1, 1);call write~init~int(105, 16, 2, 1);call write~init~int(0, 16, 3, 1);call #Ultimate.allocInit(4, 17);call write~init~int(32, 17, 0, 1);call write~init~int(37, 17, 1, 1);call write~init~int(105, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(6, 18);call write~init~int(32, 18, 0, 1);call write~init~int(70, 18, 1, 1);call write~init~int(95, 18, 2, 1);call write~init~int(112, 18, 3, 1);call write~init~int(58, 18, 4, 1);call write~init~int(0, 18, 5, 1);call #Ultimate.allocInit(4, 19);call write~init~int(32, 19, 0, 1);call write~init~int(37, 19, 1, 1);call write~init~int(105, 19, 2, 1);call write~init~int(0, 19, 3, 1);call #Ultimate.allocInit(4, 20);call write~init~int(32, 20, 0, 1);call write~init~int(37, 20, 1, 1);call write~init~int(105, 20, 2, 1);call write~init~int(0, 20, 3, 1);call #Ultimate.allocInit(4, 21);call write~init~int(32, 21, 0, 1);call write~init~int(37, 21, 1, 1);call write~init~int(105, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(4, 22);call write~init~int(32, 22, 0, 1);call write~init~int(37, 22, 1, 1);call write~init~int(105, 22, 2, 1);call write~init~int(0, 22, 3, 1);call #Ultimate.allocInit(4, 23);call write~init~int(32, 23, 0, 1);call write~init~int(37, 23, 1, 1);call write~init~int(105, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(2, 24);call write~init~int(10, 24, 0, 1);call write~init~int(0, 24, 1, 1);call #Ultimate.allocInit(9, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(21, 28);call #Ultimate.allocInit(30, 29);call #Ultimate.allocInit(9, 30);call #Ultimate.allocInit(21, 31);call #Ultimate.allocInit(30, 32);call #Ultimate.allocInit(9, 33);call #Ultimate.allocInit(25, 34);call #Ultimate.allocInit(30, 35);call #Ultimate.allocInit(9, 36);call #Ultimate.allocInit(25, 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; 484703#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~7#1, main_~tmp~9#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 484104#L2983 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 484105#L2976 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;havoc valid_product_~retValue_acc~24#1;valid_product_~retValue_acc~24#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~24#1; 490721#L2991 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 490291#L1277 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 488250#L1250 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;havoc aliceCall_~tmp~2#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 481526#L95 assume !(0 == getOrigin_~person#1); 477853#L99 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 477854#L120 aliceCall_#t~ret13#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~2#1 := aliceCall_#t~ret13#1;havoc aliceCall_#t~ret13#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~2#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 491878#L530 assume !(0 == initPersonOnFloor_~floor#1); 492626#L557 assume !(1 == initPersonOnFloor_~floor#1); 479829#L584 assume !(2 == initPersonOnFloor_~floor#1); 479830#L611 assume 3 == initPersonOnFloor_~floor#1; 491344#L612 assume !(0 == initPersonOnFloor_~person#1); 491345#L615 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_3~0 := 1; 476264#L638-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 492986#L322 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 476494#L334-2 assume { :end_inline_callOnFloor } true; 492717#L674 assume { :end_inline_initPersonOnFloor } true; 492950#L1006 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;havoc angelinaCall_~tmp~3#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 476341#L95-1 assume !(0 == getOrigin_~person#1); 476342#L99-1 assume !(1 == getOrigin_~person#1); 488597#L103-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 477095#L120-1 angelinaCall_#t~ret14#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~3#1 := angelinaCall_#t~ret14#1;havoc angelinaCall_#t~ret14#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~3#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 494025#L530-1 assume 0 == initPersonOnFloor_~floor#1; 492944#L531-2 assume !(0 == initPersonOnFloor_~person#1); 492779#L534-2 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_0~0 := 1; 476627#L638-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 482397#L322-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 477169#L334-5 assume { :end_inline_callOnFloor } true; 484710#L674-1 assume { :end_inline_initPersonOnFloor } true; 486213#L1017 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret84#1, timeShift_~tmp~24#1;havoc timeShift_~tmp~24#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;havoc getCurrentHeading_~retValue_acc~12#1;getCurrentHeading_~retValue_acc~12#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~12#1; 485044#L1680 __utac_acc__Specification13_spec__1_#t~ret4#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret4#1;havoc __utac_acc__Specification13_spec__1_#t~ret4#1; 485045#L851 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;havoc areDoorsOpen_~retValue_acc~10#1;areDoorsOpen_~retValue_acc~10#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; 493986#L1637 timeShift_#t~ret84#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~24#1 := timeShift_#t~ret84#1;havoc timeShift_#t~ret84#1; 481520#L2587 assume 0 != timeShift_~tmp~24#1; 481521#L2588 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 483088#L2587-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret5#1, __utac_acc__Specification13_spec__2_#t~ret6#1, __utac_acc__Specification13_spec__2_#t~ret7#1, __utac_acc__Specification13_spec__2_#t~ret8#1, __utac_acc__Specification13_spec__2_#t~ret9#1, __utac_acc__Specification13_spec__2_#t~ret10#1, __utac_acc__Specification13_spec__2_~tmp~0#1, __utac_acc__Specification13_spec__2_~tmp___0~0#1, __utac_acc__Specification13_spec__2_~tmp___1~0#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 485798#L869 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 483623#L870 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~22#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~22#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 483624#L2807 assume !(1 == existInLiftCallsInDirection_~d#1); 485841#L2873 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 485842#L2877-2 [2022-11-18 20:36:35,239 INFO L750 eck$LassoCheckResult]: Loop: 485842#L2877-2 assume !false; 482350#L2878 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 482351#L2879 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 480637#L2886-2 assume !false; 480638#L2887 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 481602#L2945 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 485842#L2877-2 [2022-11-18 20:36:35,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:35,244 INFO L85 PathProgramCache]: Analyzing trace with hash 590101782, now seen corresponding path program 1 times [2022-11-18 20:36:35,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:35,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370543346] [2022-11-18 20:36:35,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:35,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:35,360 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 20:36:35,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:35,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370543346] [2022-11-18 20:36:35,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370543346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:35,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:35,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:36:35,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968917345] [2022-11-18 20:36:35,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:35,364 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:36:35,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:35,365 INFO L85 PathProgramCache]: Analyzing trace with hash 2078933803, now seen corresponding path program 4 times [2022-11-18 20:36:35,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:35,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991128195] [2022-11-18 20:36:35,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:35,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:35,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:36:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:35,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:36:35,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:35,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:36:35,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:36:35,410 INFO L87 Difference]: Start difference. First operand 17910 states and 33540 transitions. cyclomatic complexity: 15664 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 20:36:36,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:36:36,967 INFO L93 Difference]: Finished difference Result 53529 states and 100281 transitions. [2022-11-18 20:36:36,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53529 states and 100281 transitions. [2022-11-18 20:36:37,217 INFO L131 ngComponentsAnalysis]: Automaton has 99 accepting balls. 12216 [2022-11-18 20:36:37,763 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53529 states to 53529 states and 100281 transitions. [2022-11-18 20:36:37,763 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53472 [2022-11-18 20:36:37,803 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53472 [2022-11-18 20:36:37,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53529 states and 100281 transitions. [2022-11-18 20:36:37,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:36:37,825 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53529 states and 100281 transitions. [2022-11-18 20:36:37,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53529 states and 100281 transitions. [2022-11-18 20:36:38,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53529 to 17914. [2022-11-18 20:36:38,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17914 states, 17914 states have (on average 1.8724461315172491) internal successors, (33543), 17913 states have internal predecessors, (33543), 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 20:36:38,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17914 states to 17914 states and 33543 transitions. [2022-11-18 20:36:38,289 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17914 states and 33543 transitions. [2022-11-18 20:36:38,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:36:38,291 INFO L428 stractBuchiCegarLoop]: Abstraction has 17914 states and 33543 transitions. [2022-11-18 20:36:38,291 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-18 20:36:38,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17914 states and 33543 transitions. [2022-11-18 20:36:38,363 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4072 [2022-11-18 20:36:38,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:36:38,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:36:38,367 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 20:36:38,367 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:36:38,368 INFO L748 eck$LassoCheckResult]: Stem: 559978#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(10, 4);call #Ultimate.allocInit(4, 5);call write~init~int(91, 5, 0, 1);call write~init~int(95, 5, 1, 1);call write~init~int(93, 5, 2, 1);call write~init~int(0, 5, 3, 1);call #Ultimate.allocInit(4, 6);call write~init~int(91, 6, 0, 1);call write~init~int(93, 6, 1, 1);call write~init~int(32, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(5, 7);call write~init~int(32, 7, 0, 1);call write~init~int(97, 7, 1, 1);call write~init~int(116, 7, 2, 1);call write~init~int(32, 7, 3, 1);call write~init~int(0, 7, 4, 1);call #Ultimate.allocInit(3, 8);call write~init~int(37, 8, 0, 1);call write~init~int(105, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(10, 9);call #Ultimate.allocInit(3, 10);call write~init~int(117, 10, 0, 1);call write~init~int(112, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(5, 11);call write~init~int(100, 11, 0, 1);call write~init~int(111, 11, 1, 1);call write~init~int(119, 11, 2, 1);call write~init~int(110, 11, 3, 1);call write~init~int(0, 11, 4, 1);call #Ultimate.allocInit(7, 12);call write~init~int(32, 12, 0, 1);call write~init~int(73, 12, 1, 1);call write~init~int(76, 12, 2, 1);call write~init~int(95, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(4, 13);call write~init~int(32, 13, 0, 1);call write~init~int(37, 13, 1, 1);call write~init~int(105, 13, 2, 1);call write~init~int(0, 13, 3, 1);call #Ultimate.allocInit(4, 14);call write~init~int(32, 14, 0, 1);call write~init~int(37, 14, 1, 1);call write~init~int(105, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(4, 15);call write~init~int(32, 15, 0, 1);call write~init~int(37, 15, 1, 1);call write~init~int(105, 15, 2, 1);call write~init~int(0, 15, 3, 1);call #Ultimate.allocInit(4, 16);call write~init~int(32, 16, 0, 1);call write~init~int(37, 16, 1, 1);call write~init~int(105, 16, 2, 1);call write~init~int(0, 16, 3, 1);call #Ultimate.allocInit(4, 17);call write~init~int(32, 17, 0, 1);call write~init~int(37, 17, 1, 1);call write~init~int(105, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(6, 18);call write~init~int(32, 18, 0, 1);call write~init~int(70, 18, 1, 1);call write~init~int(95, 18, 2, 1);call write~init~int(112, 18, 3, 1);call write~init~int(58, 18, 4, 1);call write~init~int(0, 18, 5, 1);call #Ultimate.allocInit(4, 19);call write~init~int(32, 19, 0, 1);call write~init~int(37, 19, 1, 1);call write~init~int(105, 19, 2, 1);call write~init~int(0, 19, 3, 1);call #Ultimate.allocInit(4, 20);call write~init~int(32, 20, 0, 1);call write~init~int(37, 20, 1, 1);call write~init~int(105, 20, 2, 1);call write~init~int(0, 20, 3, 1);call #Ultimate.allocInit(4, 21);call write~init~int(32, 21, 0, 1);call write~init~int(37, 21, 1, 1);call write~init~int(105, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(4, 22);call write~init~int(32, 22, 0, 1);call write~init~int(37, 22, 1, 1);call write~init~int(105, 22, 2, 1);call write~init~int(0, 22, 3, 1);call #Ultimate.allocInit(4, 23);call write~init~int(32, 23, 0, 1);call write~init~int(37, 23, 1, 1);call write~init~int(105, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(2, 24);call write~init~int(10, 24, 0, 1);call write~init~int(0, 24, 1, 1);call #Ultimate.allocInit(9, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(21, 28);call #Ultimate.allocInit(30, 29);call #Ultimate.allocInit(9, 30);call #Ultimate.allocInit(21, 31);call #Ultimate.allocInit(30, 32);call #Ultimate.allocInit(9, 33);call #Ultimate.allocInit(25, 34);call #Ultimate.allocInit(30, 35);call #Ultimate.allocInit(9, 36);call #Ultimate.allocInit(25, 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; 556154#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~7#1, main_~tmp~9#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 555555#L2983 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 555556#L2976 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;havoc valid_product_~retValue_acc~24#1;valid_product_~retValue_acc~24#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~24#1; 562172#L2991 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 561742#L1277 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 559701#L1250 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;havoc aliceCall_~tmp~2#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 552974#L95 assume !(0 == getOrigin_~person#1); 549301#L99 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 549302#L120 aliceCall_#t~ret13#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~2#1 := aliceCall_#t~ret13#1;havoc aliceCall_#t~ret13#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~2#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 563329#L530 assume !(0 == initPersonOnFloor_~floor#1); 564077#L557 assume !(1 == initPersonOnFloor_~floor#1); 551277#L584 assume !(2 == initPersonOnFloor_~floor#1); 551278#L611 assume 3 == initPersonOnFloor_~floor#1; 562795#L612 assume !(0 == initPersonOnFloor_~person#1); 562796#L615 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_3~0 := 1; 547712#L638-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 564437#L322 assume !(0 == callOnFloor_~floorID#1); 548118#L325 assume 1 == callOnFloor_~floorID#1;~calls_1~0 := 1; 547942#L334-2 assume { :end_inline_callOnFloor } true; 564168#L674 assume { :end_inline_initPersonOnFloor } true; 564401#L1006 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;havoc angelinaCall_~tmp~3#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 547789#L95-1 assume !(0 == getOrigin_~person#1); 547790#L99-1 assume !(1 == getOrigin_~person#1); 560048#L103-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 548543#L120-1 angelinaCall_#t~ret14#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~3#1 := angelinaCall_#t~ret14#1;havoc angelinaCall_#t~ret14#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~3#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 564894#L530-1 assume 0 == initPersonOnFloor_~floor#1; 564395#L531-2 assume !(0 == initPersonOnFloor_~person#1); 564230#L534-2 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_0~0 := 1; 553867#L638-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 562596#L322-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 548617#L334-5 assume { :end_inline_callOnFloor } true; 556161#L674-1 assume { :end_inline_initPersonOnFloor } true; 557664#L1017 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret84#1, timeShift_~tmp~24#1;havoc timeShift_~tmp~24#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;havoc getCurrentHeading_~retValue_acc~12#1;getCurrentHeading_~retValue_acc~12#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~12#1; 556495#L1680 __utac_acc__Specification13_spec__1_#t~ret4#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret4#1;havoc __utac_acc__Specification13_spec__1_#t~ret4#1; 556496#L851 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;havoc areDoorsOpen_~retValue_acc~10#1;areDoorsOpen_~retValue_acc~10#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; 565437#L1637 timeShift_#t~ret84#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~24#1 := timeShift_#t~ret84#1;havoc timeShift_#t~ret84#1; 552968#L2587 assume 0 != timeShift_~tmp~24#1; 552969#L2588 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 554538#L2587-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret5#1, __utac_acc__Specification13_spec__2_#t~ret6#1, __utac_acc__Specification13_spec__2_#t~ret7#1, __utac_acc__Specification13_spec__2_#t~ret8#1, __utac_acc__Specification13_spec__2_#t~ret9#1, __utac_acc__Specification13_spec__2_#t~ret10#1, __utac_acc__Specification13_spec__2_~tmp~0#1, __utac_acc__Specification13_spec__2_~tmp___0~0#1, __utac_acc__Specification13_spec__2_~tmp___1~0#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 557249#L869 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 555073#L870 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~22#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~22#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 555074#L2807 assume !(1 == existInLiftCallsInDirection_~d#1); 557292#L2873 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 557293#L2877-2 [2022-11-18 20:36:38,369 INFO L750 eck$LassoCheckResult]: Loop: 557293#L2877-2 assume !false; 553796#L2878 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 553797#L2879 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 552085#L2886-2 assume !false; 552086#L2887 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 553050#L2945 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 557293#L2877-2 [2022-11-18 20:36:38,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:38,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1215423119, now seen corresponding path program 1 times [2022-11-18 20:36:38,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:38,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896056286] [2022-11-18 20:36:38,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:38,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:38,515 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 20:36:38,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:38,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896056286] [2022-11-18 20:36:38,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896056286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:38,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:38,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:36:38,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571742913] [2022-11-18 20:36:38,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:38,517 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:36:38,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:38,520 INFO L85 PathProgramCache]: Analyzing trace with hash 2078933803, now seen corresponding path program 5 times [2022-11-18 20:36:38,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:38,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168014837] [2022-11-18 20:36:38,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:38,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:38,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:36:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:38,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:36:38,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:38,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:36:38,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:36:38,555 INFO L87 Difference]: Start difference. First operand 17914 states and 33543 transitions. cyclomatic complexity: 15663 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 20:36:39,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:36:39,940 INFO L93 Difference]: Finished difference Result 53534 states and 100283 transitions. [2022-11-18 20:36:39,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53534 states and 100283 transitions. [2022-11-18 20:36:40,127 INFO L131 ngComponentsAnalysis]: Automaton has 99 accepting balls. 12216 [2022-11-18 20:36:40,276 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53534 states to 53534 states and 100283 transitions. [2022-11-18 20:36:40,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53477 [2022-11-18 20:36:40,309 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53477 [2022-11-18 20:36:40,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53534 states and 100283 transitions. [2022-11-18 20:36:40,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:36:40,310 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53534 states and 100283 transitions. [2022-11-18 20:36:40,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53534 states and 100283 transitions. [2022-11-18 20:36:40,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53534 to 17920. [2022-11-18 20:36:40,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17920 states, 17920 states have (on average 1.8720982142857143) internal successors, (33548), 17919 states have internal predecessors, (33548), 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 20:36:40,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17920 states to 17920 states and 33548 transitions. [2022-11-18 20:36:40,782 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17920 states and 33548 transitions. [2022-11-18 20:36:40,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:36:40,783 INFO L428 stractBuchiCegarLoop]: Abstraction has 17920 states and 33548 transitions. [2022-11-18 20:36:40,783 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-18 20:36:40,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17920 states and 33548 transitions. [2022-11-18 20:36:41,080 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4072 [2022-11-18 20:36:41,081 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:36:41,081 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:36:41,082 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 20:36:41,082 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:36:41,086 INFO L748 eck$LassoCheckResult]: Stem: 631438#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(10, 4);call #Ultimate.allocInit(4, 5);call write~init~int(91, 5, 0, 1);call write~init~int(95, 5, 1, 1);call write~init~int(93, 5, 2, 1);call write~init~int(0, 5, 3, 1);call #Ultimate.allocInit(4, 6);call write~init~int(91, 6, 0, 1);call write~init~int(93, 6, 1, 1);call write~init~int(32, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(5, 7);call write~init~int(32, 7, 0, 1);call write~init~int(97, 7, 1, 1);call write~init~int(116, 7, 2, 1);call write~init~int(32, 7, 3, 1);call write~init~int(0, 7, 4, 1);call #Ultimate.allocInit(3, 8);call write~init~int(37, 8, 0, 1);call write~init~int(105, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(10, 9);call #Ultimate.allocInit(3, 10);call write~init~int(117, 10, 0, 1);call write~init~int(112, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(5, 11);call write~init~int(100, 11, 0, 1);call write~init~int(111, 11, 1, 1);call write~init~int(119, 11, 2, 1);call write~init~int(110, 11, 3, 1);call write~init~int(0, 11, 4, 1);call #Ultimate.allocInit(7, 12);call write~init~int(32, 12, 0, 1);call write~init~int(73, 12, 1, 1);call write~init~int(76, 12, 2, 1);call write~init~int(95, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(4, 13);call write~init~int(32, 13, 0, 1);call write~init~int(37, 13, 1, 1);call write~init~int(105, 13, 2, 1);call write~init~int(0, 13, 3, 1);call #Ultimate.allocInit(4, 14);call write~init~int(32, 14, 0, 1);call write~init~int(37, 14, 1, 1);call write~init~int(105, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(4, 15);call write~init~int(32, 15, 0, 1);call write~init~int(37, 15, 1, 1);call write~init~int(105, 15, 2, 1);call write~init~int(0, 15, 3, 1);call #Ultimate.allocInit(4, 16);call write~init~int(32, 16, 0, 1);call write~init~int(37, 16, 1, 1);call write~init~int(105, 16, 2, 1);call write~init~int(0, 16, 3, 1);call #Ultimate.allocInit(4, 17);call write~init~int(32, 17, 0, 1);call write~init~int(37, 17, 1, 1);call write~init~int(105, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(6, 18);call write~init~int(32, 18, 0, 1);call write~init~int(70, 18, 1, 1);call write~init~int(95, 18, 2, 1);call write~init~int(112, 18, 3, 1);call write~init~int(58, 18, 4, 1);call write~init~int(0, 18, 5, 1);call #Ultimate.allocInit(4, 19);call write~init~int(32, 19, 0, 1);call write~init~int(37, 19, 1, 1);call write~init~int(105, 19, 2, 1);call write~init~int(0, 19, 3, 1);call #Ultimate.allocInit(4, 20);call write~init~int(32, 20, 0, 1);call write~init~int(37, 20, 1, 1);call write~init~int(105, 20, 2, 1);call write~init~int(0, 20, 3, 1);call #Ultimate.allocInit(4, 21);call write~init~int(32, 21, 0, 1);call write~init~int(37, 21, 1, 1);call write~init~int(105, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(4, 22);call write~init~int(32, 22, 0, 1);call write~init~int(37, 22, 1, 1);call write~init~int(105, 22, 2, 1);call write~init~int(0, 22, 3, 1);call #Ultimate.allocInit(4, 23);call write~init~int(32, 23, 0, 1);call write~init~int(37, 23, 1, 1);call write~init~int(105, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(2, 24);call write~init~int(10, 24, 0, 1);call write~init~int(0, 24, 1, 1);call #Ultimate.allocInit(9, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(21, 28);call #Ultimate.allocInit(30, 29);call #Ultimate.allocInit(9, 30);call #Ultimate.allocInit(21, 31);call #Ultimate.allocInit(30, 32);call #Ultimate.allocInit(9, 33);call #Ultimate.allocInit(25, 34);call #Ultimate.allocInit(30, 35);call #Ultimate.allocInit(9, 36);call #Ultimate.allocInit(25, 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; 627613#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~7#1, main_~tmp~9#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 627014#L2983 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 627015#L2976 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;havoc valid_product_~retValue_acc~24#1;valid_product_~retValue_acc~24#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~24#1; 633631#L2991 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 633202#L1277 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 631161#L1250 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;havoc aliceCall_~tmp~2#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 624432#L95 assume !(0 == getOrigin_~person#1); 620754#L99 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 620755#L120 aliceCall_#t~ret13#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~2#1 := aliceCall_#t~ret13#1;havoc aliceCall_#t~ret13#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~2#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 634788#L530 assume !(0 == initPersonOnFloor_~floor#1); 635536#L557 assume !(1 == initPersonOnFloor_~floor#1); 622733#L584 assume !(2 == initPersonOnFloor_~floor#1); 622734#L611 assume 3 == initPersonOnFloor_~floor#1; 634254#L612 assume !(0 == initPersonOnFloor_~person#1); 634255#L615 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_3~0 := 1; 619169#L638-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 635896#L322 assume !(0 == callOnFloor_~floorID#1); 619575#L325 assume !(1 == callOnFloor_~floorID#1); 619576#L328 assume 2 == callOnFloor_~floorID#1;~calls_2~0 := 1; 619399#L334-2 assume { :end_inline_callOnFloor } true; 635627#L674 assume { :end_inline_initPersonOnFloor } true; 635860#L1006 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;havoc angelinaCall_~tmp~3#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 619246#L95-1 assume !(0 == getOrigin_~person#1); 619247#L99-1 assume !(1 == getOrigin_~person#1); 631508#L103-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 620000#L120-1 angelinaCall_#t~ret14#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~3#1 := angelinaCall_#t~ret14#1;havoc angelinaCall_#t~ret14#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~3#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 636353#L530-1 assume 0 == initPersonOnFloor_~floor#1; 635854#L531-2 assume !(0 == initPersonOnFloor_~person#1); 635689#L534-2 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_0~0 := 1; 625326#L638-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 636946#L322-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 623559#L334-5 assume { :end_inline_callOnFloor } true; 627620#L674-1 assume { :end_inline_initPersonOnFloor } true; 629123#L1017 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret84#1, timeShift_~tmp~24#1;havoc timeShift_~tmp~24#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;havoc getCurrentHeading_~retValue_acc~12#1;getCurrentHeading_~retValue_acc~12#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~12#1; 627954#L1680 __utac_acc__Specification13_spec__1_#t~ret4#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret4#1;havoc __utac_acc__Specification13_spec__1_#t~ret4#1; 627955#L851 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;havoc areDoorsOpen_~retValue_acc~10#1;areDoorsOpen_~retValue_acc~10#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; 636897#L1637 timeShift_#t~ret84#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~24#1 := timeShift_#t~ret84#1;havoc timeShift_#t~ret84#1; 624426#L2587 assume 0 != timeShift_~tmp~24#1; 624427#L2588 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 625997#L2587-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret5#1, __utac_acc__Specification13_spec__2_#t~ret6#1, __utac_acc__Specification13_spec__2_#t~ret7#1, __utac_acc__Specification13_spec__2_#t~ret8#1, __utac_acc__Specification13_spec__2_#t~ret9#1, __utac_acc__Specification13_spec__2_#t~ret10#1, __utac_acc__Specification13_spec__2_~tmp~0#1, __utac_acc__Specification13_spec__2_~tmp___0~0#1, __utac_acc__Specification13_spec__2_~tmp___1~0#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 628708#L869 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 626530#L870 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~22#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~22#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 626531#L2807 assume !(1 == existInLiftCallsInDirection_~d#1); 628751#L2873 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 628752#L2877-2 [2022-11-18 20:36:41,086 INFO L750 eck$LassoCheckResult]: Loop: 628752#L2877-2 assume !false; 625254#L2878 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 625255#L2879 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 623542#L2886-2 assume !false; 623543#L2887 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 624506#L2945 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 628752#L2877-2 [2022-11-18 20:36:41,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:41,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1197021167, now seen corresponding path program 1 times [2022-11-18 20:36:41,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:41,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562885332] [2022-11-18 20:36:41,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:41,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:41,197 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 20:36:41,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:41,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562885332] [2022-11-18 20:36:41,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562885332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:41,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:41,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:36:41,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553391604] [2022-11-18 20:36:41,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:41,199 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:36:41,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:41,199 INFO L85 PathProgramCache]: Analyzing trace with hash 2078933803, now seen corresponding path program 6 times [2022-11-18 20:36:41,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:41,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058848969] [2022-11-18 20:36:41,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:41,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:41,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:36:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:41,211 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:36:41,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:41,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:36:41,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:36:41,235 INFO L87 Difference]: Start difference. First operand 17920 states and 33548 transitions. cyclomatic complexity: 15662 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 20:36:42,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:36:42,377 INFO L93 Difference]: Finished difference Result 53541 states and 100287 transitions. [2022-11-18 20:36:42,377 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53541 states and 100287 transitions. [2022-11-18 20:36:42,630 INFO L131 ngComponentsAnalysis]: Automaton has 99 accepting balls. 12216 [2022-11-18 20:36:42,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53541 states to 53541 states and 100287 transitions. [2022-11-18 20:36:42,811 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53484 [2022-11-18 20:36:42,848 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53484 [2022-11-18 20:36:42,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53541 states and 100287 transitions. [2022-11-18 20:36:42,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:36:42,893 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53541 states and 100287 transitions. [2022-11-18 20:36:42,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53541 states and 100287 transitions. [2022-11-18 20:36:43,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53541 to 17928. [2022-11-18 20:36:43,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17928 states, 17928 states have (on average 1.8716532797858099) internal successors, (33555), 17927 states have internal predecessors, (33555), 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 20:36:43,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17928 states to 17928 states and 33555 transitions. [2022-11-18 20:36:43,352 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17928 states and 33555 transitions. [2022-11-18 20:36:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:36:43,353 INFO L428 stractBuchiCegarLoop]: Abstraction has 17928 states and 33555 transitions. [2022-11-18 20:36:43,354 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-18 20:36:43,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17928 states and 33555 transitions. [2022-11-18 20:36:43,419 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4072 [2022-11-18 20:36:43,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:36:43,420 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:36:43,420 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 20:36:43,420 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:36:43,421 INFO L748 eck$LassoCheckResult]: Stem: 702910#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(10, 4);call #Ultimate.allocInit(4, 5);call write~init~int(91, 5, 0, 1);call write~init~int(95, 5, 1, 1);call write~init~int(93, 5, 2, 1);call write~init~int(0, 5, 3, 1);call #Ultimate.allocInit(4, 6);call write~init~int(91, 6, 0, 1);call write~init~int(93, 6, 1, 1);call write~init~int(32, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(5, 7);call write~init~int(32, 7, 0, 1);call write~init~int(97, 7, 1, 1);call write~init~int(116, 7, 2, 1);call write~init~int(32, 7, 3, 1);call write~init~int(0, 7, 4, 1);call #Ultimate.allocInit(3, 8);call write~init~int(37, 8, 0, 1);call write~init~int(105, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(10, 9);call #Ultimate.allocInit(3, 10);call write~init~int(117, 10, 0, 1);call write~init~int(112, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(5, 11);call write~init~int(100, 11, 0, 1);call write~init~int(111, 11, 1, 1);call write~init~int(119, 11, 2, 1);call write~init~int(110, 11, 3, 1);call write~init~int(0, 11, 4, 1);call #Ultimate.allocInit(7, 12);call write~init~int(32, 12, 0, 1);call write~init~int(73, 12, 1, 1);call write~init~int(76, 12, 2, 1);call write~init~int(95, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(4, 13);call write~init~int(32, 13, 0, 1);call write~init~int(37, 13, 1, 1);call write~init~int(105, 13, 2, 1);call write~init~int(0, 13, 3, 1);call #Ultimate.allocInit(4, 14);call write~init~int(32, 14, 0, 1);call write~init~int(37, 14, 1, 1);call write~init~int(105, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(4, 15);call write~init~int(32, 15, 0, 1);call write~init~int(37, 15, 1, 1);call write~init~int(105, 15, 2, 1);call write~init~int(0, 15, 3, 1);call #Ultimate.allocInit(4, 16);call write~init~int(32, 16, 0, 1);call write~init~int(37, 16, 1, 1);call write~init~int(105, 16, 2, 1);call write~init~int(0, 16, 3, 1);call #Ultimate.allocInit(4, 17);call write~init~int(32, 17, 0, 1);call write~init~int(37, 17, 1, 1);call write~init~int(105, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(6, 18);call write~init~int(32, 18, 0, 1);call write~init~int(70, 18, 1, 1);call write~init~int(95, 18, 2, 1);call write~init~int(112, 18, 3, 1);call write~init~int(58, 18, 4, 1);call write~init~int(0, 18, 5, 1);call #Ultimate.allocInit(4, 19);call write~init~int(32, 19, 0, 1);call write~init~int(37, 19, 1, 1);call write~init~int(105, 19, 2, 1);call write~init~int(0, 19, 3, 1);call #Ultimate.allocInit(4, 20);call write~init~int(32, 20, 0, 1);call write~init~int(37, 20, 1, 1);call write~init~int(105, 20, 2, 1);call write~init~int(0, 20, 3, 1);call #Ultimate.allocInit(4, 21);call write~init~int(32, 21, 0, 1);call write~init~int(37, 21, 1, 1);call write~init~int(105, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(4, 22);call write~init~int(32, 22, 0, 1);call write~init~int(37, 22, 1, 1);call write~init~int(105, 22, 2, 1);call write~init~int(0, 22, 3, 1);call #Ultimate.allocInit(4, 23);call write~init~int(32, 23, 0, 1);call write~init~int(37, 23, 1, 1);call write~init~int(105, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(2, 24);call write~init~int(10, 24, 0, 1);call write~init~int(0, 24, 1, 1);call #Ultimate.allocInit(9, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(21, 28);call #Ultimate.allocInit(30, 29);call #Ultimate.allocInit(9, 30);call #Ultimate.allocInit(21, 31);call #Ultimate.allocInit(30, 32);call #Ultimate.allocInit(9, 33);call #Ultimate.allocInit(25, 34);call #Ultimate.allocInit(30, 35);call #Ultimate.allocInit(9, 36);call #Ultimate.allocInit(25, 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; 699085#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~7#1, main_~tmp~9#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 698485#L2983 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 698486#L2976 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;havoc valid_product_~retValue_acc~24#1;valid_product_~retValue_acc~24#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~24#1; 705104#L2991 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 704674#L1277 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 702633#L1250 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;havoc aliceCall_~tmp~2#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 695904#L95 assume !(0 == getOrigin_~person#1); 692230#L99 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 692231#L120 aliceCall_#t~ret13#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~2#1 := aliceCall_#t~ret13#1;havoc aliceCall_#t~ret13#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~2#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 706261#L530 assume !(0 == initPersonOnFloor_~floor#1); 707009#L557 assume !(1 == initPersonOnFloor_~floor#1); 694204#L584 assume !(2 == initPersonOnFloor_~floor#1); 694205#L611 assume 3 == initPersonOnFloor_~floor#1; 705727#L612 assume !(0 == initPersonOnFloor_~person#1); 705728#L615 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_3~0 := 1; 690639#L638-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 707369#L322 assume !(0 == callOnFloor_~floorID#1); 691045#L325 assume !(1 == callOnFloor_~floorID#1); 691046#L328 assume !(2 == callOnFloor_~floorID#1); 690868#L331 assume 3 == callOnFloor_~floorID#1;~calls_3~0 := 1; 690869#L334-2 assume { :end_inline_callOnFloor } true; 707100#L674 assume { :end_inline_initPersonOnFloor } true; 707333#L1006 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;havoc angelinaCall_~tmp~3#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 690722#L95-1 assume !(0 == getOrigin_~person#1); 690723#L99-1 assume !(1 == getOrigin_~person#1); 702980#L103-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 691470#L120-1 angelinaCall_#t~ret14#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~3#1 := angelinaCall_#t~ret14#1;havoc angelinaCall_#t~ret14#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~3#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 707826#L530-1 assume 0 == initPersonOnFloor_~floor#1; 707327#L531-2 assume !(0 == initPersonOnFloor_~person#1); 707162#L534-2 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_0~0 := 1; 696797#L638-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 708419#L322-2 assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 698607#L334-5 assume { :end_inline_callOnFloor } true; 699092#L674-1 assume { :end_inline_initPersonOnFloor } true; 700595#L1017 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret84#1, timeShift_~tmp~24#1;havoc timeShift_~tmp~24#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;havoc getCurrentHeading_~retValue_acc~12#1;getCurrentHeading_~retValue_acc~12#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~12#1; 699426#L1680 __utac_acc__Specification13_spec__1_#t~ret4#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret4#1;havoc __utac_acc__Specification13_spec__1_#t~ret4#1; 699427#L851 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;havoc areDoorsOpen_~retValue_acc~10#1;areDoorsOpen_~retValue_acc~10#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; 708370#L1637 timeShift_#t~ret84#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~24#1 := timeShift_#t~ret84#1;havoc timeShift_#t~ret84#1; 695898#L2587 assume 0 != timeShift_~tmp~24#1; 695899#L2588 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 697468#L2587-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret5#1, __utac_acc__Specification13_spec__2_#t~ret6#1, __utac_acc__Specification13_spec__2_#t~ret7#1, __utac_acc__Specification13_spec__2_#t~ret8#1, __utac_acc__Specification13_spec__2_#t~ret9#1, __utac_acc__Specification13_spec__2_#t~ret10#1, __utac_acc__Specification13_spec__2_~tmp~0#1, __utac_acc__Specification13_spec__2_~tmp___0~0#1, __utac_acc__Specification13_spec__2_~tmp___1~0#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 700180#L869 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 698003#L870 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~22#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~22#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 698004#L2807 assume !(1 == existInLiftCallsInDirection_~d#1); 700223#L2873 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 700224#L2877-2 [2022-11-18 20:36:43,421 INFO L750 eck$LassoCheckResult]: Loop: 700224#L2877-2 assume !false; 696728#L2878 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 696729#L2879 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 695014#L2886-2 assume !false; 695015#L2887 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 695980#L2945 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 700224#L2877-2 [2022-11-18 20:36:43,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:43,422 INFO L85 PathProgramCache]: Analyzing trace with hash -471461620, now seen corresponding path program 1 times [2022-11-18 20:36:43,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:43,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27056403] [2022-11-18 20:36:43,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:43,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:43,566 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 20:36:43,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:43,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27056403] [2022-11-18 20:36:43,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27056403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:43,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:43,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:36:43,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119324023] [2022-11-18 20:36:43,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:43,568 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:36:43,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:43,569 INFO L85 PathProgramCache]: Analyzing trace with hash 2078933803, now seen corresponding path program 7 times [2022-11-18 20:36:43,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:43,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407801434] [2022-11-18 20:36:43,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:43,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:43,575 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:36:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:43,580 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:36:43,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:43,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:36:43,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:36:43,606 INFO L87 Difference]: Start difference. First operand 17928 states and 33555 transitions. cyclomatic complexity: 15661 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 20:36:44,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:36:44,640 INFO L93 Difference]: Finished difference Result 39392 states and 73760 transitions. [2022-11-18 20:36:44,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39392 states and 73760 transitions. [2022-11-18 20:36:44,777 INFO L131 ngComponentsAnalysis]: Automaton has 60 accepting balls. 15196 [2022-11-18 20:36:44,879 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39392 states to 39392 states and 73760 transitions. [2022-11-18 20:36:44,879 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39373 [2022-11-18 20:36:44,907 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39373 [2022-11-18 20:36:44,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39392 states and 73760 transitions. [2022-11-18 20:36:44,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:36:44,922 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39392 states and 73760 transitions. [2022-11-18 20:36:44,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39392 states and 73760 transitions. [2022-11-18 20:36:45,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39392 to 17914. [2022-11-18 20:36:45,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17914 states, 17914 states have (on average 1.8716646198503963) internal successors, (33529), 17913 states have internal predecessors, (33529), 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 20:36:45,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17914 states to 17914 states and 33529 transitions. [2022-11-18 20:36:45,212 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17914 states and 33529 transitions. [2022-11-18 20:36:45,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:36:45,213 INFO L428 stractBuchiCegarLoop]: Abstraction has 17914 states and 33529 transitions. [2022-11-18 20:36:45,213 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-11-18 20:36:45,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17914 states and 33529 transitions. [2022-11-18 20:36:45,308 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4072 [2022-11-18 20:36:45,308 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:36:45,308 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:36:45,309 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 20:36:45,309 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:36:45,310 INFO L748 eck$LassoCheckResult]: Stem: 760240#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(10, 4);call #Ultimate.allocInit(4, 5);call write~init~int(91, 5, 0, 1);call write~init~int(95, 5, 1, 1);call write~init~int(93, 5, 2, 1);call write~init~int(0, 5, 3, 1);call #Ultimate.allocInit(4, 6);call write~init~int(91, 6, 0, 1);call write~init~int(93, 6, 1, 1);call write~init~int(32, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(5, 7);call write~init~int(32, 7, 0, 1);call write~init~int(97, 7, 1, 1);call write~init~int(116, 7, 2, 1);call write~init~int(32, 7, 3, 1);call write~init~int(0, 7, 4, 1);call #Ultimate.allocInit(3, 8);call write~init~int(37, 8, 0, 1);call write~init~int(105, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(10, 9);call #Ultimate.allocInit(3, 10);call write~init~int(117, 10, 0, 1);call write~init~int(112, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(5, 11);call write~init~int(100, 11, 0, 1);call write~init~int(111, 11, 1, 1);call write~init~int(119, 11, 2, 1);call write~init~int(110, 11, 3, 1);call write~init~int(0, 11, 4, 1);call #Ultimate.allocInit(7, 12);call write~init~int(32, 12, 0, 1);call write~init~int(73, 12, 1, 1);call write~init~int(76, 12, 2, 1);call write~init~int(95, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(4, 13);call write~init~int(32, 13, 0, 1);call write~init~int(37, 13, 1, 1);call write~init~int(105, 13, 2, 1);call write~init~int(0, 13, 3, 1);call #Ultimate.allocInit(4, 14);call write~init~int(32, 14, 0, 1);call write~init~int(37, 14, 1, 1);call write~init~int(105, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(4, 15);call write~init~int(32, 15, 0, 1);call write~init~int(37, 15, 1, 1);call write~init~int(105, 15, 2, 1);call write~init~int(0, 15, 3, 1);call #Ultimate.allocInit(4, 16);call write~init~int(32, 16, 0, 1);call write~init~int(37, 16, 1, 1);call write~init~int(105, 16, 2, 1);call write~init~int(0, 16, 3, 1);call #Ultimate.allocInit(4, 17);call write~init~int(32, 17, 0, 1);call write~init~int(37, 17, 1, 1);call write~init~int(105, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(6, 18);call write~init~int(32, 18, 0, 1);call write~init~int(70, 18, 1, 1);call write~init~int(95, 18, 2, 1);call write~init~int(112, 18, 3, 1);call write~init~int(58, 18, 4, 1);call write~init~int(0, 18, 5, 1);call #Ultimate.allocInit(4, 19);call write~init~int(32, 19, 0, 1);call write~init~int(37, 19, 1, 1);call write~init~int(105, 19, 2, 1);call write~init~int(0, 19, 3, 1);call #Ultimate.allocInit(4, 20);call write~init~int(32, 20, 0, 1);call write~init~int(37, 20, 1, 1);call write~init~int(105, 20, 2, 1);call write~init~int(0, 20, 3, 1);call #Ultimate.allocInit(4, 21);call write~init~int(32, 21, 0, 1);call write~init~int(37, 21, 1, 1);call write~init~int(105, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(4, 22);call write~init~int(32, 22, 0, 1);call write~init~int(37, 22, 1, 1);call write~init~int(105, 22, 2, 1);call write~init~int(0, 22, 3, 1);call #Ultimate.allocInit(4, 23);call write~init~int(32, 23, 0, 1);call write~init~int(37, 23, 1, 1);call write~init~int(105, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(2, 24);call write~init~int(10, 24, 0, 1);call write~init~int(0, 24, 1, 1);call #Ultimate.allocInit(9, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(21, 28);call #Ultimate.allocInit(30, 29);call #Ultimate.allocInit(9, 30);call #Ultimate.allocInit(21, 31);call #Ultimate.allocInit(30, 32);call #Ultimate.allocInit(9, 33);call #Ultimate.allocInit(25, 34);call #Ultimate.allocInit(30, 35);call #Ultimate.allocInit(9, 36);call #Ultimate.allocInit(25, 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; 756416#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~7#1, main_~tmp~9#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 755816#L2983 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 755817#L2976 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;havoc valid_product_~retValue_acc~24#1;valid_product_~retValue_acc~24#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~24#1; 762435#L2991 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 762005#L1277 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 759965#L1250 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;havoc aliceCall_~tmp~2#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 753236#L95 assume !(0 == getOrigin_~person#1); 749562#L99 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 749563#L120 aliceCall_#t~ret13#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~2#1 := aliceCall_#t~ret13#1;havoc aliceCall_#t~ret13#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~2#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 763590#L530 assume !(0 == initPersonOnFloor_~floor#1); 764338#L557 assume !(1 == initPersonOnFloor_~floor#1); 751538#L584 assume !(2 == initPersonOnFloor_~floor#1); 751539#L611 assume 3 == initPersonOnFloor_~floor#1; 763056#L612 assume !(0 == initPersonOnFloor_~person#1); 763057#L615 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_3~0 := 1; 747975#L638-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 764695#L322 assume !(0 == callOnFloor_~floorID#1); 748381#L325 assume !(1 == callOnFloor_~floorID#1); 748382#L328 assume !(2 == callOnFloor_~floorID#1); 748204#L331 assume 3 == callOnFloor_~floorID#1;~calls_3~0 := 1; 748205#L334-2 assume { :end_inline_callOnFloor } true; 764429#L674 assume { :end_inline_initPersonOnFloor } true; 764659#L1006 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;havoc angelinaCall_~tmp~3#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 748052#L95-1 assume !(0 == getOrigin_~person#1); 748053#L99-1 assume !(1 == getOrigin_~person#1); 760309#L103-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 764966#L120-1 angelinaCall_#t~ret14#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~3#1 := angelinaCall_#t~ret14#1;havoc angelinaCall_#t~ret14#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~3#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 760010#L530-1 assume !(0 == initPersonOnFloor_~floor#1); 760011#L557-1 assume 1 == initPersonOnFloor_~floor#1; 762923#L558-2 assume !(0 == initPersonOnFloor_~person#1); 761502#L561-2 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_1~0 := 1; 752342#L638-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 765732#L322-2 assume !(0 == callOnFloor_~floorID#1); 765730#L325-2 assume 1 == callOnFloor_~floorID#1;~calls_1~0 := 1; 755935#L334-5 assume { :end_inline_callOnFloor } true; 756423#L674-1 assume { :end_inline_initPersonOnFloor } true; 757926#L1017 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret84#1, timeShift_~tmp~24#1;havoc timeShift_~tmp~24#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;havoc getCurrentHeading_~retValue_acc~12#1;getCurrentHeading_~retValue_acc~12#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~12#1; 756757#L1680 __utac_acc__Specification13_spec__1_#t~ret4#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret4#1;havoc __utac_acc__Specification13_spec__1_#t~ret4#1; 756758#L851 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;havoc areDoorsOpen_~retValue_acc~10#1;areDoorsOpen_~retValue_acc~10#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; 765694#L1637 timeShift_#t~ret84#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~24#1 := timeShift_#t~ret84#1;havoc timeShift_#t~ret84#1; 753230#L2587 assume 0 != timeShift_~tmp~24#1; 753231#L2588 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 754798#L2587-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret5#1, __utac_acc__Specification13_spec__2_#t~ret6#1, __utac_acc__Specification13_spec__2_#t~ret7#1, __utac_acc__Specification13_spec__2_#t~ret8#1, __utac_acc__Specification13_spec__2_#t~ret9#1, __utac_acc__Specification13_spec__2_#t~ret10#1, __utac_acc__Specification13_spec__2_~tmp~0#1, __utac_acc__Specification13_spec__2_~tmp___0~0#1, __utac_acc__Specification13_spec__2_~tmp___1~0#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 757511#L869 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 755333#L870 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~22#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~22#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 755334#L2807 assume !(1 == existInLiftCallsInDirection_~d#1); 757554#L2873 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 757555#L2877-2 [2022-11-18 20:36:45,310 INFO L750 eck$LassoCheckResult]: Loop: 757555#L2877-2 assume !false; 754058#L2878 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 754059#L2879 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 752347#L2886-2 assume !false; 752348#L2887 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 753312#L2945 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 757555#L2877-2 [2022-11-18 20:36:45,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:45,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1355773026, now seen corresponding path program 1 times [2022-11-18 20:36:45,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:45,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679157948] [2022-11-18 20:36:45,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:45,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:45,416 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 20:36:45,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:45,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679157948] [2022-11-18 20:36:45,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679157948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:45,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:45,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:36:45,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147597702] [2022-11-18 20:36:45,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:45,418 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:36:45,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:45,418 INFO L85 PathProgramCache]: Analyzing trace with hash 2078933803, now seen corresponding path program 8 times [2022-11-18 20:36:45,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:45,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37869277] [2022-11-18 20:36:45,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:45,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:45,423 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:36:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:45,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:36:45,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:45,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:36:45,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:36:45,447 INFO L87 Difference]: Start difference. First operand 17914 states and 33529 transitions. cyclomatic complexity: 15649 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 20:36:46,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:36:46,444 INFO L93 Difference]: Finished difference Result 39366 states and 73711 transitions. [2022-11-18 20:36:46,444 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39366 states and 73711 transitions. [2022-11-18 20:36:46,581 INFO L131 ngComponentsAnalysis]: Automaton has 60 accepting balls. 15196 [2022-11-18 20:36:46,969 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39366 states to 39366 states and 73711 transitions. [2022-11-18 20:36:46,969 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39347 [2022-11-18 20:36:46,989 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39347 [2022-11-18 20:36:46,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39366 states and 73711 transitions. [2022-11-18 20:36:46,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:36:46,998 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39366 states and 73711 transitions. [2022-11-18 20:36:47,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39366 states and 73711 transitions. [2022-11-18 20:36:47,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39366 to 17908. [2022-11-18 20:36:47,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17908 states, 17908 states have (on average 1.8715657806566897) internal successors, (33516), 17907 states have internal predecessors, (33516), 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 20:36:47,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17908 states to 17908 states and 33516 transitions. [2022-11-18 20:36:47,261 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17908 states and 33516 transitions. [2022-11-18 20:36:47,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:36:47,262 INFO L428 stractBuchiCegarLoop]: Abstraction has 17908 states and 33516 transitions. [2022-11-18 20:36:47,262 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-11-18 20:36:47,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17908 states and 33516 transitions. [2022-11-18 20:36:47,309 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4072 [2022-11-18 20:36:47,309 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:36:47,309 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:36:47,310 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 20:36:47,310 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:36:47,310 INFO L748 eck$LassoCheckResult]: Stem: 817527#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(10, 4);call #Ultimate.allocInit(4, 5);call write~init~int(91, 5, 0, 1);call write~init~int(95, 5, 1, 1);call write~init~int(93, 5, 2, 1);call write~init~int(0, 5, 3, 1);call #Ultimate.allocInit(4, 6);call write~init~int(91, 6, 0, 1);call write~init~int(93, 6, 1, 1);call write~init~int(32, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(5, 7);call write~init~int(32, 7, 0, 1);call write~init~int(97, 7, 1, 1);call write~init~int(116, 7, 2, 1);call write~init~int(32, 7, 3, 1);call write~init~int(0, 7, 4, 1);call #Ultimate.allocInit(3, 8);call write~init~int(37, 8, 0, 1);call write~init~int(105, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(10, 9);call #Ultimate.allocInit(3, 10);call write~init~int(117, 10, 0, 1);call write~init~int(112, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(5, 11);call write~init~int(100, 11, 0, 1);call write~init~int(111, 11, 1, 1);call write~init~int(119, 11, 2, 1);call write~init~int(110, 11, 3, 1);call write~init~int(0, 11, 4, 1);call #Ultimate.allocInit(7, 12);call write~init~int(32, 12, 0, 1);call write~init~int(73, 12, 1, 1);call write~init~int(76, 12, 2, 1);call write~init~int(95, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(4, 13);call write~init~int(32, 13, 0, 1);call write~init~int(37, 13, 1, 1);call write~init~int(105, 13, 2, 1);call write~init~int(0, 13, 3, 1);call #Ultimate.allocInit(4, 14);call write~init~int(32, 14, 0, 1);call write~init~int(37, 14, 1, 1);call write~init~int(105, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(4, 15);call write~init~int(32, 15, 0, 1);call write~init~int(37, 15, 1, 1);call write~init~int(105, 15, 2, 1);call write~init~int(0, 15, 3, 1);call #Ultimate.allocInit(4, 16);call write~init~int(32, 16, 0, 1);call write~init~int(37, 16, 1, 1);call write~init~int(105, 16, 2, 1);call write~init~int(0, 16, 3, 1);call #Ultimate.allocInit(4, 17);call write~init~int(32, 17, 0, 1);call write~init~int(37, 17, 1, 1);call write~init~int(105, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(6, 18);call write~init~int(32, 18, 0, 1);call write~init~int(70, 18, 1, 1);call write~init~int(95, 18, 2, 1);call write~init~int(112, 18, 3, 1);call write~init~int(58, 18, 4, 1);call write~init~int(0, 18, 5, 1);call #Ultimate.allocInit(4, 19);call write~init~int(32, 19, 0, 1);call write~init~int(37, 19, 1, 1);call write~init~int(105, 19, 2, 1);call write~init~int(0, 19, 3, 1);call #Ultimate.allocInit(4, 20);call write~init~int(32, 20, 0, 1);call write~init~int(37, 20, 1, 1);call write~init~int(105, 20, 2, 1);call write~init~int(0, 20, 3, 1);call #Ultimate.allocInit(4, 21);call write~init~int(32, 21, 0, 1);call write~init~int(37, 21, 1, 1);call write~init~int(105, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(4, 22);call write~init~int(32, 22, 0, 1);call write~init~int(37, 22, 1, 1);call write~init~int(105, 22, 2, 1);call write~init~int(0, 22, 3, 1);call #Ultimate.allocInit(4, 23);call write~init~int(32, 23, 0, 1);call write~init~int(37, 23, 1, 1);call write~init~int(105, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(2, 24);call write~init~int(10, 24, 0, 1);call write~init~int(0, 24, 1, 1);call #Ultimate.allocInit(9, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(21, 28);call #Ultimate.allocInit(30, 29);call #Ultimate.allocInit(9, 30);call #Ultimate.allocInit(21, 31);call #Ultimate.allocInit(30, 32);call #Ultimate.allocInit(9, 33);call #Ultimate.allocInit(25, 34);call #Ultimate.allocInit(30, 35);call #Ultimate.allocInit(9, 36);call #Ultimate.allocInit(25, 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; 813706#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~7#1, main_~tmp~9#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 813106#L2983 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 813107#L2976 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;havoc valid_product_~retValue_acc~24#1;valid_product_~retValue_acc~24#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~24#1; 819721#L2991 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 819291#L1277 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 817253#L1250 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;havoc aliceCall_~tmp~2#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 810529#L95 assume !(0 == getOrigin_~person#1); 806855#L99 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 806856#L120 aliceCall_#t~ret13#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~2#1 := aliceCall_#t~ret13#1;havoc aliceCall_#t~ret13#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~2#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 820878#L530 assume !(0 == initPersonOnFloor_~floor#1); 821626#L557 assume !(1 == initPersonOnFloor_~floor#1); 808834#L584 assume !(2 == initPersonOnFloor_~floor#1); 808835#L611 assume 3 == initPersonOnFloor_~floor#1; 820344#L612 assume !(0 == initPersonOnFloor_~person#1); 820345#L615 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_3~0 := 1; 805271#L638-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 821983#L322 assume !(0 == callOnFloor_~floorID#1); 805677#L325 assume !(1 == callOnFloor_~floorID#1); 805678#L328 assume !(2 == callOnFloor_~floorID#1); 805500#L331 assume 3 == callOnFloor_~floorID#1;~calls_3~0 := 1; 805501#L334-2 assume { :end_inline_callOnFloor } true; 821717#L674 assume { :end_inline_initPersonOnFloor } true; 821947#L1006 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;havoc angelinaCall_~tmp~3#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 805348#L95-1 assume !(0 == getOrigin_~person#1); 805349#L99-1 assume !(1 == getOrigin_~person#1); 817598#L103-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 822254#L120-1 angelinaCall_#t~ret14#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~3#1 := angelinaCall_#t~ret14#1;havoc angelinaCall_#t~ret14#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~3#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 817298#L530-1 assume !(0 == initPersonOnFloor_~floor#1); 817299#L557-1 assume !(1 == initPersonOnFloor_~floor#1); 822524#L584-1 assume 2 == initPersonOnFloor_~floor#1; 819648#L585-2 assume !(0 == initPersonOnFloor_~person#1); 815072#L588-2 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_2~0 := 1; 808853#L638-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 823021#L322-2 assume !(0 == callOnFloor_~floorID#1); 823020#L325-2 assume !(1 == callOnFloor_~floorID#1); 823019#L328-2 assume 2 == callOnFloor_~floorID#1;~calls_2~0 := 1; 813222#L334-5 assume { :end_inline_callOnFloor } true; 813713#L674-1 assume { :end_inline_initPersonOnFloor } true; 815215#L1017 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret84#1, timeShift_~tmp~24#1;havoc timeShift_~tmp~24#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;havoc getCurrentHeading_~retValue_acc~12#1;getCurrentHeading_~retValue_acc~12#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~12#1; 814047#L1680 __utac_acc__Specification13_spec__1_#t~ret4#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret4#1;havoc __utac_acc__Specification13_spec__1_#t~ret4#1; 814048#L851 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;havoc areDoorsOpen_~retValue_acc~10#1;areDoorsOpen_~retValue_acc~10#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; 822983#L1637 timeShift_#t~ret84#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~24#1 := timeShift_#t~ret84#1;havoc timeShift_#t~ret84#1; 810523#L2587 assume 0 != timeShift_~tmp~24#1; 810524#L2588 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 812089#L2587-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret5#1, __utac_acc__Specification13_spec__2_#t~ret6#1, __utac_acc__Specification13_spec__2_#t~ret7#1, __utac_acc__Specification13_spec__2_#t~ret8#1, __utac_acc__Specification13_spec__2_#t~ret9#1, __utac_acc__Specification13_spec__2_#t~ret10#1, __utac_acc__Specification13_spec__2_~tmp~0#1, __utac_acc__Specification13_spec__2_~tmp___0~0#1, __utac_acc__Specification13_spec__2_~tmp___1~0#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 814800#L869 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 812622#L870 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~22#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~22#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 812623#L2807 assume !(1 == existInLiftCallsInDirection_~d#1); 814843#L2873 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 814844#L2877-2 [2022-11-18 20:36:47,310 INFO L750 eck$LassoCheckResult]: Loop: 814844#L2877-2 assume !false; 811351#L2878 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 811352#L2879 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 809640#L2886-2 assume !false; 809641#L2887 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 810605#L2945 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 814844#L2877-2 [2022-11-18 20:36:47,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:47,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1516125827, now seen corresponding path program 1 times [2022-11-18 20:36:47,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:47,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006048598] [2022-11-18 20:36:47,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:47,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:47,395 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 20:36:47,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:47,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006048598] [2022-11-18 20:36:47,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006048598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:47,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:47,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:36:47,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29862889] [2022-11-18 20:36:47,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:47,399 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:36:47,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:47,400 INFO L85 PathProgramCache]: Analyzing trace with hash 2078933803, now seen corresponding path program 9 times [2022-11-18 20:36:47,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:47,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115622244] [2022-11-18 20:36:47,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:47,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:47,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:36:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:47,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:36:47,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:47,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:36:47,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:36:47,437 INFO L87 Difference]: Start difference. First operand 17908 states and 33516 transitions. cyclomatic complexity: 15642 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 20:36:48,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:36:48,003 INFO L93 Difference]: Finished difference Result 25085 states and 46937 transitions. [2022-11-18 20:36:48,004 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25085 states and 46937 transitions. [2022-11-18 20:36:48,091 INFO L131 ngComponentsAnalysis]: Automaton has 42 accepting balls. 7780 [2022-11-18 20:36:48,161 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25085 states to 25085 states and 46937 transitions. [2022-11-18 20:36:48,161 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25066 [2022-11-18 20:36:48,179 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25066 [2022-11-18 20:36:48,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25085 states and 46937 transitions. [2022-11-18 20:36:48,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:36:48,179 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25085 states and 46937 transitions. [2022-11-18 20:36:48,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25085 states and 46937 transitions. [2022-11-18 20:36:48,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25085 to 17908. [2022-11-18 20:36:48,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17908 states, 17908 states have (on average 1.8711190529372348) internal successors, (33508), 17907 states have internal predecessors, (33508), 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 20:36:48,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17908 states to 17908 states and 33508 transitions. [2022-11-18 20:36:48,881 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17908 states and 33508 transitions. [2022-11-18 20:36:48,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:36:48,881 INFO L428 stractBuchiCegarLoop]: Abstraction has 17908 states and 33508 transitions. [2022-11-18 20:36:48,882 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-11-18 20:36:48,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17908 states and 33508 transitions. [2022-11-18 20:36:48,928 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 4072 [2022-11-18 20:36:48,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:36:48,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:36:48,929 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 20:36:48,929 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:36:48,929 INFO L748 eck$LassoCheckResult]: Stem: 860534#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(10, 4);call #Ultimate.allocInit(4, 5);call write~init~int(91, 5, 0, 1);call write~init~int(95, 5, 1, 1);call write~init~int(93, 5, 2, 1);call write~init~int(0, 5, 3, 1);call #Ultimate.allocInit(4, 6);call write~init~int(91, 6, 0, 1);call write~init~int(93, 6, 1, 1);call write~init~int(32, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(5, 7);call write~init~int(32, 7, 0, 1);call write~init~int(97, 7, 1, 1);call write~init~int(116, 7, 2, 1);call write~init~int(32, 7, 3, 1);call write~init~int(0, 7, 4, 1);call #Ultimate.allocInit(3, 8);call write~init~int(37, 8, 0, 1);call write~init~int(105, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(10, 9);call #Ultimate.allocInit(3, 10);call write~init~int(117, 10, 0, 1);call write~init~int(112, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(5, 11);call write~init~int(100, 11, 0, 1);call write~init~int(111, 11, 1, 1);call write~init~int(119, 11, 2, 1);call write~init~int(110, 11, 3, 1);call write~init~int(0, 11, 4, 1);call #Ultimate.allocInit(7, 12);call write~init~int(32, 12, 0, 1);call write~init~int(73, 12, 1, 1);call write~init~int(76, 12, 2, 1);call write~init~int(95, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(4, 13);call write~init~int(32, 13, 0, 1);call write~init~int(37, 13, 1, 1);call write~init~int(105, 13, 2, 1);call write~init~int(0, 13, 3, 1);call #Ultimate.allocInit(4, 14);call write~init~int(32, 14, 0, 1);call write~init~int(37, 14, 1, 1);call write~init~int(105, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(4, 15);call write~init~int(32, 15, 0, 1);call write~init~int(37, 15, 1, 1);call write~init~int(105, 15, 2, 1);call write~init~int(0, 15, 3, 1);call #Ultimate.allocInit(4, 16);call write~init~int(32, 16, 0, 1);call write~init~int(37, 16, 1, 1);call write~init~int(105, 16, 2, 1);call write~init~int(0, 16, 3, 1);call #Ultimate.allocInit(4, 17);call write~init~int(32, 17, 0, 1);call write~init~int(37, 17, 1, 1);call write~init~int(105, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(6, 18);call write~init~int(32, 18, 0, 1);call write~init~int(70, 18, 1, 1);call write~init~int(95, 18, 2, 1);call write~init~int(112, 18, 3, 1);call write~init~int(58, 18, 4, 1);call write~init~int(0, 18, 5, 1);call #Ultimate.allocInit(4, 19);call write~init~int(32, 19, 0, 1);call write~init~int(37, 19, 1, 1);call write~init~int(105, 19, 2, 1);call write~init~int(0, 19, 3, 1);call #Ultimate.allocInit(4, 20);call write~init~int(32, 20, 0, 1);call write~init~int(37, 20, 1, 1);call write~init~int(105, 20, 2, 1);call write~init~int(0, 20, 3, 1);call #Ultimate.allocInit(4, 21);call write~init~int(32, 21, 0, 1);call write~init~int(37, 21, 1, 1);call write~init~int(105, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(4, 22);call write~init~int(32, 22, 0, 1);call write~init~int(37, 22, 1, 1);call write~init~int(105, 22, 2, 1);call write~init~int(0, 22, 3, 1);call #Ultimate.allocInit(4, 23);call write~init~int(32, 23, 0, 1);call write~init~int(37, 23, 1, 1);call write~init~int(105, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(2, 24);call write~init~int(10, 24, 0, 1);call write~init~int(0, 24, 1, 1);call #Ultimate.allocInit(9, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(21, 28);call #Ultimate.allocInit(30, 29);call #Ultimate.allocInit(9, 30);call #Ultimate.allocInit(21, 31);call #Ultimate.allocInit(30, 32);call #Ultimate.allocInit(9, 33);call #Ultimate.allocInit(25, 34);call #Ultimate.allocInit(30, 35);call #Ultimate.allocInit(9, 36);call #Ultimate.allocInit(25, 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; 856711#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~7#1, main_~tmp~9#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 856111#L2983 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 856112#L2976 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~24#1;havoc valid_product_~retValue_acc~24#1;valid_product_~retValue_acc~24#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~24#1; 862725#L2991 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 862296#L1277 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 860259#L1250 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret13#1, aliceCall_~tmp~2#1;havoc aliceCall_~tmp~2#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 853532#L95 assume !(0 == getOrigin_~person#1); 849858#L99 assume 1 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 3;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 849859#L120 aliceCall_#t~ret13#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~2#1 := aliceCall_#t~ret13#1;havoc aliceCall_#t~ret13#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~2#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 863881#L530 assume !(0 == initPersonOnFloor_~floor#1); 864629#L557 assume !(1 == initPersonOnFloor_~floor#1); 851837#L584 assume !(2 == initPersonOnFloor_~floor#1); 851838#L611 assume 3 == initPersonOnFloor_~floor#1; 863347#L612 assume !(0 == initPersonOnFloor_~person#1); 863348#L615 assume 1 == initPersonOnFloor_~person#1;~personOnFloor_1_3~0 := 1; 848274#L638-1 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 864986#L322 assume !(0 == callOnFloor_~floorID#1); 848680#L325 assume !(1 == callOnFloor_~floorID#1); 848681#L328 assume !(2 == callOnFloor_~floorID#1); 848503#L331 assume 3 == callOnFloor_~floorID#1;~calls_3~0 := 1; 848504#L334-2 assume { :end_inline_callOnFloor } true; 864720#L674 assume { :end_inline_initPersonOnFloor } true; 864950#L1006 assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret14#1, angelinaCall_~tmp~3#1;havoc angelinaCall_~tmp~3#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~1#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~1#1; 848351#L95-1 assume !(0 == getOrigin_~person#1); 848352#L99-1 assume !(1 == getOrigin_~person#1); 860603#L103-1 assume 2 == getOrigin_~person#1;getOrigin_~retValue_acc~1#1 := 2;getOrigin_#res#1 := getOrigin_~retValue_acc~1#1; 865257#L120-1 angelinaCall_#t~ret14#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~3#1 := angelinaCall_#t~ret14#1;havoc angelinaCall_#t~ret14#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~3#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 860304#L530-1 assume !(0 == initPersonOnFloor_~floor#1); 860305#L557-1 assume !(1 == initPersonOnFloor_~floor#1); 865527#L584-1 assume 2 == initPersonOnFloor_~floor#1; 862653#L585-2 assume !(0 == initPersonOnFloor_~person#1); 858078#L588-2 assume !(1 == initPersonOnFloor_~person#1); 858079#L591-2 assume 2 == initPersonOnFloor_~person#1;~personOnFloor_2_2~0 := 1; 851854#L638-3 assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 866023#L322-2 assume !(0 == callOnFloor_~floorID#1); 866022#L325-2 assume !(1 == callOnFloor_~floorID#1); 866021#L328-2 assume 2 == callOnFloor_~floorID#1;~calls_2~0 := 1; 856225#L334-5 assume { :end_inline_callOnFloor } true; 856718#L674-1 assume { :end_inline_initPersonOnFloor } true; 858221#L1017 assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret84#1, timeShift_~tmp~24#1;havoc timeShift_~tmp~24#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret4#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~12#1;havoc getCurrentHeading_~retValue_acc~12#1;getCurrentHeading_~retValue_acc~12#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~12#1; 857052#L1680 __utac_acc__Specification13_spec__1_#t~ret4#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret4#1;havoc __utac_acc__Specification13_spec__1_#t~ret4#1; 857053#L851 assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~10#1;havoc areDoorsOpen_~retValue_acc~10#1;areDoorsOpen_~retValue_acc~10#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; 865985#L1637 timeShift_#t~ret84#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~24#1 := timeShift_#t~ret84#1;havoc timeShift_#t~ret84#1; 853526#L2587 assume 0 != timeShift_~tmp~24#1; 853527#L2588 assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 855093#L2587-1 assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret5#1, __utac_acc__Specification13_spec__2_#t~ret6#1, __utac_acc__Specification13_spec__2_#t~ret7#1, __utac_acc__Specification13_spec__2_#t~ret8#1, __utac_acc__Specification13_spec__2_#t~ret9#1, __utac_acc__Specification13_spec__2_#t~ret10#1, __utac_acc__Specification13_spec__2_~tmp~0#1, __utac_acc__Specification13_spec__2_~tmp___0~0#1, __utac_acc__Specification13_spec__2_~tmp___1~0#1, __utac_acc__Specification13_spec__2_~tmp___2~0#1, __utac_acc__Specification13_spec__2_~tmp___3~0#1, __utac_acc__Specification13_spec__2_~tmp___4~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;havoc __utac_acc__Specification13_spec__2_~tmp~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~0#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~0#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~0#1 / 3); 857806#L869 assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~0#1; 855626#L870 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~22#1, existInLiftCallsInDirection_~i~3#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~22#1;havoc existInLiftCallsInDirection_~i~3#1;havoc existInLiftCallsInDirection_~i___0~0#1; 855627#L2807 assume !(1 == existInLiftCallsInDirection_~d#1); 857849#L2873 assume 0 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i___0~0#1 := 0;existInLiftCallsInDirection_~i___0~0#1 := ~currentFloorID~0 - 1; 857850#L2877-2 [2022-11-18 20:36:48,929 INFO L750 eck$LassoCheckResult]: Loop: 857850#L2877-2 assume !false; 854354#L2878 assume existInLiftCallsInDirection_~i___0~0#1 >= 0; 854355#L2879 existInLiftCallsInDirection_~i___0~0#1 := 1 + ~currentFloorID~0; 852643#L2886-2 assume !false; 852644#L2887 assume !(existInLiftCallsInDirection_~i___0~0#1 < 5); 853606#L2945 existInLiftCallsInDirection_~i___0~0#1 := existInLiftCallsInDirection_~i___0~0#1 - 1; 857850#L2877-2 [2022-11-18 20:36:48,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:48,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1488774646, now seen corresponding path program 1 times [2022-11-18 20:36:48,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:48,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292608961] [2022-11-18 20:36:48,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:48,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:49,032 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 20:36:49,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:49,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292608961] [2022-11-18 20:36:49,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292608961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:49,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:49,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:36:49,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553425187] [2022-11-18 20:36:49,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:49,034 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:36:49,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:49,034 INFO L85 PathProgramCache]: Analyzing trace with hash 2078933803, now seen corresponding path program 10 times [2022-11-18 20:36:49,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:49,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823626460] [2022-11-18 20:36:49,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:49,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:49,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:49,038 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:36:49,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:36:49,042 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:36:49,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:49,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:36:49,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:36:49,063 INFO L87 Difference]: Start difference. First operand 17908 states and 33508 transitions. cyclomatic complexity: 15634 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 20:36:50,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:36:50,060 INFO L93 Difference]: Finished difference Result 33398 states and 62650 transitions. [2022-11-18 20:36:50,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33398 states and 62650 transitions. [2022-11-18 20:36:50,179 INFO L131 ngComponentsAnalysis]: Automaton has 66 accepting balls. 7004 [2022-11-18 20:36:50,268 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33398 states to 33398 states and 62650 transitions. [2022-11-18 20:36:50,268 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33360 [2022-11-18 20:36:50,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33360 [2022-11-18 20:36:50,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33398 states and 62650 transitions. [2022-11-18 20:36:50,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:36:50,293 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33398 states and 62650 transitions. [2022-11-18 20:36:50,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33398 states and 62650 transitions.