./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec14_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1999a93b-a14e-4ad2-9158-f108e109a7e3/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1999a93b-a14e-4ad2-9158-f108e109a7e3/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1999a93b-a14e-4ad2-9158-f108e109a7e3/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1999a93b-a14e-4ad2-9158-f108e109a7e3/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec14_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1999a93b-a14e-4ad2-9158-f108e109a7e3/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1999a93b-a14e-4ad2-9158-f108e109a7e3/bin/uautomizer-J5u9QxTXDZ --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 f6cc861ca86011eb32ffd09a18c7045c0cb28e684d3b73d1659bc499a4213e84 --- 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-dbf71c6-m [2022-10-17 11:08:40,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:08:40,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:08:40,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:08:40,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:08:40,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:08:40,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:08:40,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:08:40,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:08:40,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:08:40,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:08:40,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:08:40,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:08:40,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:08:40,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:08:40,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:08:40,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:08:40,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:08:40,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:08:40,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:08:40,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:08:40,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:08:40,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:08:40,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:08:40,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:08:40,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:08:40,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:08:40,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:08:40,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:08:40,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:08:40,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:08:40,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:08:40,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:08:40,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:08:40,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:08:40,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:08:40,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:08:40,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:08:40,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:08:40,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:08:40,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:08:40,852 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1999a93b-a14e-4ad2-9158-f108e109a7e3/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-10-17 11:08:40,896 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:08:40,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:08:40,897 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:08:40,897 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:08:40,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:08:40,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:08:40,898 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:08:40,899 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 11:08:40,899 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 11:08:40,899 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 11:08:40,900 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 11:08:40,900 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 11:08:40,901 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 11:08:40,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:08:40,901 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:08:40,901 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 11:08:40,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:08:40,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:08:40,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:08:40,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 11:08:40,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 11:08:40,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 11:08:40,903 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:08:40,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:08:40,905 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 11:08:40,905 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:08:40,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 11:08:40,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:08:40,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:08:40,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:08:40,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:08:40,908 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 11:08:40,909 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_1999a93b-a14e-4ad2-9158-f108e109a7e3/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1999a93b-a14e-4ad2-9158-f108e109a7e3/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6cc861ca86011eb32ffd09a18c7045c0cb28e684d3b73d1659bc499a4213e84 [2022-10-17 11:08:41,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:08:41,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:08:41,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:08:41,271 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:08:41,273 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:08:41,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1999a93b-a14e-4ad2-9158-f108e109a7e3/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/product-lines/elevator_spec14_product20.cil.c [2022-10-17 11:08:41,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1999a93b-a14e-4ad2-9158-f108e109a7e3/bin/uautomizer-J5u9QxTXDZ/data/527908d98/f82141e9e8dc465991c3280c71fbc2f0/FLAG663bd1a99 [2022-10-17 11:08:41,997 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:08:41,998 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1999a93b-a14e-4ad2-9158-f108e109a7e3/sv-benchmarks/c/product-lines/elevator_spec14_product20.cil.c [2022-10-17 11:08:42,023 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1999a93b-a14e-4ad2-9158-f108e109a7e3/bin/uautomizer-J5u9QxTXDZ/data/527908d98/f82141e9e8dc465991c3280c71fbc2f0/FLAG663bd1a99 [2022-10-17 11:08:42,332 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1999a93b-a14e-4ad2-9158-f108e109a7e3/bin/uautomizer-J5u9QxTXDZ/data/527908d98/f82141e9e8dc465991c3280c71fbc2f0 [2022-10-17 11:08:42,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:08:42,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:08:42,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:08:42,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:08:42,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:08:42,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:08:42" (1/1) ... [2022-10-17 11:08:42,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4371ff77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:42, skipping insertion in model container [2022-10-17 11:08:42,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:08:42" (1/1) ... [2022-10-17 11:08:42,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:08:42,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:08:43,029 WARN L230 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_1999a93b-a14e-4ad2-9158-f108e109a7e3/sv-benchmarks/c/product-lines/elevator_spec14_product20.cil.c[69987,70000] [2022-10-17 11:08:43,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:08:43,052 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:08:43,169 WARN L230 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_1999a93b-a14e-4ad2-9158-f108e109a7e3/sv-benchmarks/c/product-lines/elevator_spec14_product20.cil.c[69987,70000] [2022-10-17 11:08:43,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:08:43,210 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:08:43,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:43 WrapperNode [2022-10-17 11:08:43,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:08:43,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:08:43,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:08:43,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:08:43,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:43" (1/1) ... [2022-10-17 11:08:43,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:43" (1/1) ... [2022-10-17 11:08:43,788 INFO L138 Inliner]: procedures = 93, calls = 339, calls flagged for inlining = 191, calls inlined = 1331, statements flattened = 41544 [2022-10-17 11:08:43,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:08:43,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:08:43,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:08:43,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:08:43,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:43" (1/1) ... [2022-10-17 11:08:43,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:43" (1/1) ... [2022-10-17 11:08:43,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:43" (1/1) ... [2022-10-17 11:08:43,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:43" (1/1) ... [2022-10-17 11:08:44,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:43" (1/1) ... [2022-10-17 11:08:44,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:43" (1/1) ... [2022-10-17 11:08:44,696 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:43" (1/1) ... [2022-10-17 11:08:44,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:43" (1/1) ... [2022-10-17 11:08:44,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:08:44,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:08:44,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:08:44,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:08:44,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:43" (1/1) ... [2022-10-17 11:08:44,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 11:08:44,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1999a93b-a14e-4ad2-9158-f108e109a7e3/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:08:44,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1999a93b-a14e-4ad2-9158-f108e109a7e3/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 11:08:45,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1999a93b-a14e-4ad2-9158-f108e109a7e3/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 11:08:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:08:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:08:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:08:45,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:08:45,369 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:08:45,387 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:08:59,575 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:08:59,676 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:08:59,677 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 11:08:59,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:08:59 BoogieIcfgContainer [2022-10-17 11:08:59,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:08:59,691 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 11:08:59,691 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 11:08:59,695 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 11:08:59,696 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 11:08:59,696 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 11:08:42" (1/3) ... [2022-10-17 11:08:59,697 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f36953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 11:08:59, skipping insertion in model container [2022-10-17 11:08:59,697 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 11:08:59,697 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:08:43" (2/3) ... [2022-10-17 11:08:59,698 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f36953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 11:08:59, skipping insertion in model container [2022-10-17 11:08:59,698 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 11:08:59,698 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:08:59" (3/3) ... [2022-10-17 11:08:59,700 INFO L332 chiAutomizerObserver]: Analyzing ICFG elevator_spec14_product20.cil.c [2022-10-17 11:08:59,943 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 11:08:59,943 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 11:08:59,943 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 11:08:59,943 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 11:08:59,944 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 11:08:59,944 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 11:08:59,944 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 11:08:59,944 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 11:08:59,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11841 states, 11840 states have (on average 1.8693412162162162) internal successors, (22133), 11840 states have internal predecessors, (22133), 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) [2022-10-17 11:09:00,245 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2384 [2022-10-17 11:09:00,245 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:09:00,245 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:09:00,262 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:09:00,262 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:09:00,263 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 11:09:00,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11841 states, 11840 states have (on average 1.8693412162162162) internal successors, (22133), 11840 states have internal predecessors, (22133), 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) [2022-10-17 11:09:00,478 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2384 [2022-10-17 11:09:00,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 11:09:00,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 11:09:00,484 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:09:00,484 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:09:00,493 INFO L748 eck$LassoCheckResult]: Stem: 9594#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(32, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(10, 16);call #Ultimate.allocInit(4, 17);call write~init~int(91, 17, 0, 1);call write~init~int(95, 17, 1, 1);call write~init~int(93, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(4, 18);call write~init~int(91, 18, 0, 1);call write~init~int(93, 18, 1, 1);call write~init~int(32, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(5, 19);call write~init~int(32, 19, 0, 1);call write~init~int(97, 19, 1, 1);call write~init~int(116, 19, 2, 1);call write~init~int(32, 19, 3, 1);call write~init~int(0, 19, 4, 1);call #Ultimate.allocInit(3, 20);call write~init~int(37, 20, 0, 1);call write~init~int(105, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(3, 22);call write~init~int(117, 22, 0, 1);call write~init~int(112, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(5, 23);call write~init~int(100, 23, 0, 1);call write~init~int(111, 23, 1, 1);call write~init~int(119, 23, 2, 1);call write~init~int(110, 23, 3, 1);call write~init~int(0, 23, 4, 1);call #Ultimate.allocInit(7, 24);call write~init~int(32, 24, 0, 1);call write~init~int(73, 24, 1, 1);call write~init~int(76, 24, 2, 1);call write~init~int(95, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(4, 25);call write~init~int(32, 25, 0, 1);call write~init~int(37, 25, 1, 1);call write~init~int(105, 25, 2, 1);call write~init~int(0, 25, 3, 1);call #Ultimate.allocInit(4, 26);call write~init~int(32, 26, 0, 1);call write~init~int(37, 26, 1, 1);call write~init~int(105, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(4, 27);call write~init~int(32, 27, 0, 1);call write~init~int(37, 27, 1, 1);call write~init~int(105, 27, 2, 1);call write~init~int(0, 27, 3, 1);call #Ultimate.allocInit(4, 28);call write~init~int(32, 28, 0, 1);call write~init~int(37, 28, 1, 1);call write~init~int(105, 28, 2, 1);call write~init~int(0, 28, 3, 1);call #Ultimate.allocInit(4, 29);call write~init~int(32, 29, 0, 1);call write~init~int(37, 29, 1, 1);call write~init~int(105, 29, 2, 1);call write~init~int(0, 29, 3, 1);call #Ultimate.allocInit(6, 30);call write~init~int(32, 30, 0, 1);call write~init~int(70, 30, 1, 1);call write~init~int(95, 30, 2, 1);call write~init~int(112, 30, 3, 1);call write~init~int(58, 30, 4, 1);call write~init~int(0, 30, 5, 1);call #Ultimate.allocInit(4, 31);call write~init~int(32, 31, 0, 1);call write~init~int(37, 31, 1, 1);call write~init~int(105, 31, 2, 1);call write~init~int(0, 31, 3, 1);call #Ultimate.allocInit(4, 32);call write~init~int(32, 32, 0, 1);call write~init~int(37, 32, 1, 1);call write~init~int(105, 32, 2, 1);call write~init~int(0, 32, 3, 1);call #Ultimate.allocInit(4, 33);call write~init~int(32, 33, 0, 1);call write~init~int(37, 33, 1, 1);call write~init~int(105, 33, 2, 1);call write~init~int(0, 33, 3, 1);call #Ultimate.allocInit(4, 34);call write~init~int(32, 34, 0, 1);call write~init~int(37, 34, 1, 1);call write~init~int(105, 34, 2, 1);call write~init~int(0, 34, 3, 1);call #Ultimate.allocInit(4, 35);call write~init~int(32, 35, 0, 1);call write~init~int(37, 35, 1, 1);call write~init~int(105, 35, 2, 1);call write~init~int(0, 35, 3, 1);call #Ultimate.allocInit(2, 36);call write~init~int(10, 36, 0, 1);call write~init~int(0, 36, 1, 1);call #Ultimate.allocInit(9, 37);~head~0.base, ~head~0.offset := 0, 0;~weight~0 := 0;~maximumWeight~0 := 100;~executiveFloor~0 := 4;~blocked~0 := 0;~cleanupTimeShifts~0 := 12;~calls_0~0 := 0;~calls_1~0 := 0;~calls_2~0 := 0;~calls_3~0 := 0;~calls_4~0 := 0;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~currentHeading~0 := 1;~currentFloorID~0 := 0;~persons_0~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_3~0 := 0;~persons_4~0 := 0;~persons_5~0 := 0;~doorState~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0; 5823#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~4#1, main_~tmp~14#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~14#1;assume { :begin_inline_select_helpers } true; 485#L934true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 7247#L927true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 5136#L942true main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~14#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 823#L898true assume 0 != main_~tmp~14#1;assume { :begin_inline_setup } true; 2907#L871true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_bigMacCall } true;havoc bigMacCall_#t~ret43#1, bigMacCall_~tmp~11#1;havoc bigMacCall_~tmp~11#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 5;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~28#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~28#1; 7898#L3241true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~28#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~28#1; 9986#L3266true bigMacCall_#t~ret43#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;bigMacCall_~tmp~11#1 := bigMacCall_#t~ret43#1;havoc bigMacCall_#t~ret43#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 5, bigMacCall_~tmp~11#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 11510#L1320true assume 0 == initPersonOnFloor_~floor#1; 7947#L1321true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 4948#L1428-1true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 1318#L1112true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 9920#L1124-2true assume { :end_inline_callOnFloor } true; 5920#L1464true assume { :end_inline_initPersonOnFloor } true; 93#L675true assume { :end_inline_bigMacCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret104#1, timeShift_~tmp~26#1;havoc timeShift_~tmp~26#1;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~12#1;havoc areDoorsOpen_~retValue_acc~12#1;areDoorsOpen_~retValue_acc~12#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~12#1; 11742#L1862true timeShift_#t~ret104#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~26#1 := timeShift_#t~ret104#1;havoc timeShift_#t~ret104#1; 2191#L2804true assume 0 != timeShift_~tmp~26#1; 6516#L2805true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 2404#L2804-1true assume { :begin_inline___utac_acc__Specification14_spec__1 } true;havoc __utac_acc__Specification14_spec__1_#t~ret33#1, __utac_acc__Specification14_spec__1_#t~ret34#1, __utac_acc__Specification14_spec__1_#t~ret35#1, __utac_acc__Specification14_spec__1_#t~ret36#1, __utac_acc__Specification14_spec__1_~tmp~5#1, __utac_acc__Specification14_spec__1_~tmp___0~2#1, __utac_acc__Specification14_spec__1_~tmp___1~2#1, __utac_acc__Specification14_spec__1_~tmp___2~0#1;havoc __utac_acc__Specification14_spec__1_~tmp~5#1;havoc __utac_acc__Specification14_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification14_spec__1_~tmp___1~2#1;havoc __utac_acc__Specification14_spec__1_~tmp___2~0#1;assume { :begin_inline_isExecutiveFloorCalling } true;havoc isExecutiveFloorCalling_#res#1;havoc isExecutiveFloorCalling_#t~ret133#1, isExecutiveFloorCalling_~retValue_acc~25#1;havoc isExecutiveFloorCalling_~retValue_acc~25#1;assume { :begin_inline_isFloorCalling } true;isFloorCalling_#in~floorID#1 := ~executiveFloor~0;havoc isFloorCalling_#res#1;havoc isFloorCalling_~floorID#1, isFloorCalling_~retValue_acc~7#1;isFloorCalling_~floorID#1 := isFloorCalling_#in~floorID#1;havoc isFloorCalling_~retValue_acc~7#1; 1274#L1049-50true assume 0 == isFloorCalling_~floorID#1;isFloorCalling_~retValue_acc~7#1 := ~calls_0~0;isFloorCalling_#res#1 := isFloorCalling_~retValue_acc~7#1; 6770#L1076-50true isExecutiveFloorCalling_#t~ret133#1 := isFloorCalling_#res#1;assume { :end_inline_isFloorCalling } true;isExecutiveFloorCalling_~retValue_acc~25#1 := isExecutiveFloorCalling_#t~ret133#1;havoc isExecutiveFloorCalling_#t~ret133#1;isExecutiveFloorCalling_#res#1 := isExecutiveFloorCalling_~retValue_acc~25#1; 1448#L3184-6true __utac_acc__Specification14_spec__1_#t~ret33#1 := isExecutiveFloorCalling_#res#1;assume { :end_inline_isExecutiveFloorCalling } true;__utac_acc__Specification14_spec__1_~tmp___2~0#1 := __utac_acc__Specification14_spec__1_#t~ret33#1;havoc __utac_acc__Specification14_spec__1_#t~ret33#1; 1604#L533true assume !(0 != __utac_acc__Specification14_spec__1_~tmp___2~0#1); 2903#L533-1true assume { :end_inline___utac_acc__Specification14_spec__1 } true; 3552#L2822true assume { :end_inline_timeShift } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret104#1, timeShift_~tmp~26#1;havoc timeShift_~tmp~26#1;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~12#1;havoc areDoorsOpen_~retValue_acc~12#1;areDoorsOpen_~retValue_acc~12#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~12#1; 11792#L1862-2true timeShift_#t~ret104#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~26#1 := timeShift_#t~ret104#1;havoc timeShift_#t~ret104#1; 4427#L2804-2true assume 0 != timeShift_~tmp~26#1; 8409#L2805-3true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 7550#L2804-3true assume { :begin_inline___utac_acc__Specification14_spec__1 } true;havoc __utac_acc__Specification14_spec__1_#t~ret33#1, __utac_acc__Specification14_spec__1_#t~ret34#1, __utac_acc__Specification14_spec__1_#t~ret35#1, __utac_acc__Specification14_spec__1_#t~ret36#1, __utac_acc__Specification14_spec__1_~tmp~5#1, __utac_acc__Specification14_spec__1_~tmp___0~2#1, __utac_acc__Specification14_spec__1_~tmp___1~2#1, __utac_acc__Specification14_spec__1_~tmp___2~0#1;havoc __utac_acc__Specification14_spec__1_~tmp~5#1;havoc __utac_acc__Specification14_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification14_spec__1_~tmp___1~2#1;havoc __utac_acc__Specification14_spec__1_~tmp___2~0#1;assume { :begin_inline_isExecutiveFloorCalling } true;havoc isExecutiveFloorCalling_#res#1;havoc isExecutiveFloorCalling_#t~ret133#1, isExecutiveFloorCalling_~retValue_acc~25#1;havoc isExecutiveFloorCalling_~retValue_acc~25#1;assume { :begin_inline_isFloorCalling } true;isFloorCalling_#in~floorID#1 := ~executiveFloor~0;havoc isFloorCalling_#res#1;havoc isFloorCalling_~floorID#1, isFloorCalling_~retValue_acc~7#1;isFloorCalling_~floorID#1 := isFloorCalling_#in~floorID#1;havoc isFloorCalling_~retValue_acc~7#1; 1167#L1049-101true assume 0 == isFloorCalling_~floorID#1;isFloorCalling_~retValue_acc~7#1 := ~calls_0~0;isFloorCalling_#res#1 := isFloorCalling_~retValue_acc~7#1; 2331#L1076-101true isExecutiveFloorCalling_#t~ret133#1 := isFloorCalling_#res#1;assume { :end_inline_isFloorCalling } true;isExecutiveFloorCalling_~retValue_acc~25#1 := isExecutiveFloorCalling_#t~ret133#1;havoc isExecutiveFloorCalling_#t~ret133#1;isExecutiveFloorCalling_#res#1 := isExecutiveFloorCalling_~retValue_acc~25#1; 2653#L3184-13true __utac_acc__Specification14_spec__1_#t~ret33#1 := isExecutiveFloorCalling_#res#1;assume { :end_inline_isExecutiveFloorCalling } true;__utac_acc__Specification14_spec__1_~tmp___2~0#1 := __utac_acc__Specification14_spec__1_#t~ret33#1;havoc __utac_acc__Specification14_spec__1_#t~ret33#1; 8479#L533-2true assume !(0 != __utac_acc__Specification14_spec__1_~tmp___2~0#1); 7347#L533-3true assume { :end_inline___utac_acc__Specification14_spec__1 } true; 9041#L2822-1true assume { :end_inline_timeShift } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret104#1, timeShift_~tmp~26#1;havoc timeShift_~tmp~26#1;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~12#1;havoc areDoorsOpen_~retValue_acc~12#1;areDoorsOpen_~retValue_acc~12#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~12#1; 3535#L1862-4true timeShift_#t~ret104#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~26#1 := timeShift_#t~ret104#1;havoc timeShift_#t~ret104#1; 621#L2804-4true assume 0 != timeShift_~tmp~26#1; 540#L2805-6true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 11571#L2804-5true assume { :begin_inline___utac_acc__Specification14_spec__1 } true;havoc __utac_acc__Specification14_spec__1_#t~ret33#1, __utac_acc__Specification14_spec__1_#t~ret34#1, __utac_acc__Specification14_spec__1_#t~ret35#1, __utac_acc__Specification14_spec__1_#t~ret36#1, __utac_acc__Specification14_spec__1_~tmp~5#1, __utac_acc__Specification14_spec__1_~tmp___0~2#1, __utac_acc__Specification14_spec__1_~tmp___1~2#1, __utac_acc__Specification14_spec__1_~tmp___2~0#1;havoc __utac_acc__Specification14_spec__1_~tmp~5#1;havoc __utac_acc__Specification14_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification14_spec__1_~tmp___1~2#1;havoc __utac_acc__Specification14_spec__1_~tmp___2~0#1;assume { :begin_inline_isExecutiveFloorCalling } true;havoc isExecutiveFloorCalling_#res#1;havoc isExecutiveFloorCalling_#t~ret133#1, isExecutiveFloorCalling_~retValue_acc~25#1;havoc isExecutiveFloorCalling_~retValue_acc~25#1;assume { :begin_inline_isFloorCalling } true;isFloorCalling_#in~floorID#1 := ~executiveFloor~0;havoc isFloorCalling_#res#1;havoc isFloorCalling_~floorID#1, isFloorCalling_~retValue_acc~7#1;isFloorCalling_~floorID#1 := isFloorCalling_#in~floorID#1;havoc isFloorCalling_~retValue_acc~7#1; 8630#L1049-152true assume 0 == isFloorCalling_~floorID#1;isFloorCalling_~retValue_acc~7#1 := ~calls_0~0;isFloorCalling_#res#1 := isFloorCalling_~retValue_acc~7#1; 11686#L1076-152true isExecutiveFloorCalling_#t~ret133#1 := isFloorCalling_#res#1;assume { :end_inline_isFloorCalling } true;isExecutiveFloorCalling_~retValue_acc~25#1 := isExecutiveFloorCalling_#t~ret133#1;havoc isExecutiveFloorCalling_#t~ret133#1;isExecutiveFloorCalling_#res#1 := isExecutiveFloorCalling_~retValue_acc~25#1; 155#L3184-20true __utac_acc__Specification14_spec__1_#t~ret33#1 := isExecutiveFloorCalling_#res#1;assume { :end_inline_isExecutiveFloorCalling } true;__utac_acc__Specification14_spec__1_~tmp___2~0#1 := __utac_acc__Specification14_spec__1_#t~ret33#1;havoc __utac_acc__Specification14_spec__1_#t~ret33#1; 5279#L533-4true assume !(0 != __utac_acc__Specification14_spec__1_~tmp___2~0#1); 5802#L533-5true assume { :end_inline___utac_acc__Specification14_spec__1 } true; 2469#L2822-2true assume { :end_inline_timeShift } true; 11133#L687true assume { :end_inline_threeTS } true;assume { :begin_inline_bobCall } true;havoc bobCall_#t~ret38#1, bobCall_~tmp~6#1;havoc bobCall_~tmp~6#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 0;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~28#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~28#1; 3715#L3241-1true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~28#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~28#1; 1934#L3266-1true bobCall_#t~ret38#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;bobCall_~tmp~6#1 := bobCall_#t~ret38#1;havoc bobCall_#t~ret38#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 0, bobCall_~tmp~6#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 1661#L1320-1true assume 0 == initPersonOnFloor_~floor#1; 6482#L1321-2true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 3406#L1428-3true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 11190#L1112-2true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 5552#L1124-5true assume { :end_inline_callOnFloor } true; 1147#L1464-1true assume { :end_inline_initPersonOnFloor } true; 10007#L620true assume { :end_inline_bobCall } true;assume { :begin_inline_cleanup } true;havoc cleanup_#t~ret44#1, cleanup_#t~ret45#1, cleanup_~i~2#1, cleanup_~tmp~12#1, cleanup_~tmp___0~3#1, cleanup_~__cil_tmp4~2#1;havoc cleanup_~i~2#1;havoc cleanup_~tmp~12#1;havoc cleanup_~tmp___0~3#1;havoc cleanup_~__cil_tmp4~2#1;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret104#1, timeShift_~tmp~26#1;havoc timeShift_~tmp~26#1;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~12#1;havoc areDoorsOpen_~retValue_acc~12#1;areDoorsOpen_~retValue_acc~12#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~12#1; 1864#L1862-6true timeShift_#t~ret104#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~26#1 := timeShift_#t~ret104#1;havoc timeShift_#t~ret104#1; 10617#L2804-6true assume 0 != timeShift_~tmp~26#1; 9346#L2805-9true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 10939#L2804-7true assume { :begin_inline___utac_acc__Specification14_spec__1 } true;havoc __utac_acc__Specification14_spec__1_#t~ret33#1, __utac_acc__Specification14_spec__1_#t~ret34#1, __utac_acc__Specification14_spec__1_#t~ret35#1, __utac_acc__Specification14_spec__1_#t~ret36#1, __utac_acc__Specification14_spec__1_~tmp~5#1, __utac_acc__Specification14_spec__1_~tmp___0~2#1, __utac_acc__Specification14_spec__1_~tmp___1~2#1, __utac_acc__Specification14_spec__1_~tmp___2~0#1;havoc __utac_acc__Specification14_spec__1_~tmp~5#1;havoc __utac_acc__Specification14_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification14_spec__1_~tmp___1~2#1;havoc __utac_acc__Specification14_spec__1_~tmp___2~0#1;assume { :begin_inline_isExecutiveFloorCalling } true;havoc isExecutiveFloorCalling_#res#1;havoc isExecutiveFloorCalling_#t~ret133#1, isExecutiveFloorCalling_~retValue_acc~25#1;havoc isExecutiveFloorCalling_~retValue_acc~25#1;assume { :begin_inline_isFloorCalling } true;isFloorCalling_#in~floorID#1 := ~executiveFloor~0;havoc isFloorCalling_#res#1;havoc isFloorCalling_~floorID#1, isFloorCalling_~retValue_acc~7#1;isFloorCalling_~floorID#1 := isFloorCalling_#in~floorID#1;havoc isFloorCalling_~retValue_acc~7#1; 9293#L1049-203true assume 0 == isFloorCalling_~floorID#1;isFloorCalling_~retValue_acc~7#1 := ~calls_0~0;isFloorCalling_#res#1 := isFloorCalling_~retValue_acc~7#1; 10063#L1076-203true isExecutiveFloorCalling_#t~ret133#1 := isFloorCalling_#res#1;assume { :end_inline_isFloorCalling } true;isExecutiveFloorCalling_~retValue_acc~25#1 := isExecutiveFloorCalling_#t~ret133#1;havoc isExecutiveFloorCalling_#t~ret133#1;isExecutiveFloorCalling_#res#1 := isExecutiveFloorCalling_~retValue_acc~25#1; 7290#L3184-27true __utac_acc__Specification14_spec__1_#t~ret33#1 := isExecutiveFloorCalling_#res#1;assume { :end_inline_isExecutiveFloorCalling } true;__utac_acc__Specification14_spec__1_~tmp___2~0#1 := __utac_acc__Specification14_spec__1_#t~ret33#1;havoc __utac_acc__Specification14_spec__1_#t~ret33#1; 6123#L533-6true assume !(0 != __utac_acc__Specification14_spec__1_~tmp___2~0#1); 10444#L533-7true assume { :end_inline___utac_acc__Specification14_spec__1 } true; 98#L2822-3true assume { :end_inline_timeShift } true;cleanup_~i~2#1 := 0; 9371#L703-2true [2022-10-17 11:09:00,494 INFO L750 eck$LassoCheckResult]: Loop: 9371#L703-2true assume !false; 6600#L704true cleanup_~__cil_tmp4~2#1 := ~cleanupTimeShifts~0 - 1; 2098#L707true assume cleanup_~i~2#1 < cleanup_~__cil_tmp4~2#1;assume { :begin_inline_isBlocked } true;havoc isBlocked_#res#1;havoc isBlocked_~retValue_acc~10#1;havoc isBlocked_~retValue_acc~10#1;isBlocked_~retValue_acc~10#1 := ~blocked~0;isBlocked_#res#1 := isBlocked_~retValue_acc~10#1; 982#L1700true cleanup_#t~ret44#1 := isBlocked_#res#1;assume { :end_inline_isBlocked } true;cleanup_~tmp___0~3#1 := cleanup_#t~ret44#1;havoc cleanup_#t~ret44#1; 232#L711true assume 1 != cleanup_~tmp___0~3#1; 1763#L711-1true assume { :begin_inline_isIdle } true;havoc isIdle_#res#1;havoc isIdle_#t~ret59#1, isIdle_~retValue_acc~17#1, isIdle_~tmp~18#1;havoc isIdle_~retValue_acc~17#1;havoc isIdle_~tmp~18#1;assume { :begin_inline_anyStopRequested } true;havoc anyStopRequested_#res#1;havoc anyStopRequested_#t~ret54#1, anyStopRequested_#t~ret55#1, anyStopRequested_#t~ret56#1, anyStopRequested_#t~ret57#1, anyStopRequested_#t~ret58#1, anyStopRequested_~retValue_acc~16#1, anyStopRequested_~tmp~17#1, anyStopRequested_~tmp___0~5#1, anyStopRequested_~tmp___1~4#1, anyStopRequested_~tmp___2~2#1, anyStopRequested_~tmp___3~0#1;havoc anyStopRequested_~retValue_acc~16#1;havoc anyStopRequested_~tmp~17#1;havoc anyStopRequested_~tmp___0~5#1;havoc anyStopRequested_~tmp___1~4#1;havoc anyStopRequested_~tmp___2~2#1;havoc anyStopRequested_~tmp___3~0#1;assume { :begin_inline_isFloorCalling } true;isFloorCalling_#in~floorID#1 := 0;havoc isFloorCalling_#res#1;havoc isFloorCalling_~floorID#1, isFloorCalling_~retValue_acc~7#1;isFloorCalling_~floorID#1 := isFloorCalling_#in~floorID#1;havoc isFloorCalling_~retValue_acc~7#1; 10458#L1049-204true assume 0 == isFloorCalling_~floorID#1;isFloorCalling_~retValue_acc~7#1 := ~calls_0~0;isFloorCalling_#res#1 := isFloorCalling_~retValue_acc~7#1; 5047#L1076-204true anyStopRequested_#t~ret54#1 := isFloorCalling_#res#1;assume { :end_inline_isFloorCalling } true;anyStopRequested_~tmp___3~0#1 := anyStopRequested_#t~ret54#1;havoc anyStopRequested_#t~ret54#1; 5076#L1961true assume 0 != anyStopRequested_~tmp___3~0#1;anyStopRequested_~retValue_acc~16#1 := 1;anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~16#1; 2005#L2025true isIdle_#t~ret59#1 := anyStopRequested_#res#1;assume { :end_inline_anyStopRequested } true;isIdle_~tmp~18#1 := isIdle_#t~ret59#1;havoc isIdle_#t~ret59#1;isIdle_~retValue_acc~17#1 := (if 0 == isIdle_~tmp~18#1 then 1 else 0);isIdle_#res#1 := isIdle_~retValue_acc~17#1; 965#L2038true cleanup_#t~ret45#1 := isIdle_#res#1;assume { :end_inline_isIdle } true;cleanup_~tmp~12#1 := cleanup_#t~ret45#1;havoc cleanup_#t~ret45#1; 4032#L723true assume !(0 != cleanup_~tmp~12#1);assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret104#1, timeShift_~tmp~26#1;havoc timeShift_~tmp~26#1;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~12#1;havoc areDoorsOpen_~retValue_acc~12#1;areDoorsOpen_~retValue_acc~12#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~12#1; 2439#L1862-8true timeShift_#t~ret104#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~26#1 := timeShift_#t~ret104#1;havoc timeShift_#t~ret104#1; 4835#L2804-8true assume 0 != timeShift_~tmp~26#1; 7871#L2805-12true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 5629#L2804-9true assume { :begin_inline___utac_acc__Specification14_spec__1 } true;havoc __utac_acc__Specification14_spec__1_#t~ret33#1, __utac_acc__Specification14_spec__1_#t~ret34#1, __utac_acc__Specification14_spec__1_#t~ret35#1, __utac_acc__Specification14_spec__1_#t~ret36#1, __utac_acc__Specification14_spec__1_~tmp~5#1, __utac_acc__Specification14_spec__1_~tmp___0~2#1, __utac_acc__Specification14_spec__1_~tmp___1~2#1, __utac_acc__Specification14_spec__1_~tmp___2~0#1;havoc __utac_acc__Specification14_spec__1_~tmp~5#1;havoc __utac_acc__Specification14_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification14_spec__1_~tmp___1~2#1;havoc __utac_acc__Specification14_spec__1_~tmp___2~0#1;assume { :begin_inline_isExecutiveFloorCalling } true;havoc isExecutiveFloorCalling_#res#1;havoc isExecutiveFloorCalling_#t~ret133#1, isExecutiveFloorCalling_~retValue_acc~25#1;havoc isExecutiveFloorCalling_~retValue_acc~25#1;assume { :begin_inline_isFloorCalling } true;isFloorCalling_#in~floorID#1 := ~executiveFloor~0;havoc isFloorCalling_#res#1;havoc isFloorCalling_~floorID#1, isFloorCalling_~retValue_acc~7#1;isFloorCalling_~floorID#1 := isFloorCalling_#in~floorID#1;havoc isFloorCalling_~retValue_acc~7#1; 5282#L1049-259true assume 0 == isFloorCalling_~floorID#1;isFloorCalling_~retValue_acc~7#1 := ~calls_0~0;isFloorCalling_#res#1 := isFloorCalling_~retValue_acc~7#1; 1757#L1076-259true isExecutiveFloorCalling_#t~ret133#1 := isFloorCalling_#res#1;assume { :end_inline_isFloorCalling } true;isExecutiveFloorCalling_~retValue_acc~25#1 := isExecutiveFloorCalling_#t~ret133#1;havoc isExecutiveFloorCalling_#t~ret133#1;isExecutiveFloorCalling_#res#1 := isExecutiveFloorCalling_~retValue_acc~25#1; 10886#L3184-34true __utac_acc__Specification14_spec__1_#t~ret33#1 := isExecutiveFloorCalling_#res#1;assume { :end_inline_isExecutiveFloorCalling } true;__utac_acc__Specification14_spec__1_~tmp___2~0#1 := __utac_acc__Specification14_spec__1_#t~ret33#1;havoc __utac_acc__Specification14_spec__1_#t~ret33#1; 9998#L533-8true assume !(0 != __utac_acc__Specification14_spec__1_~tmp___2~0#1); 10820#L533-9true assume { :end_inline___utac_acc__Specification14_spec__1 } true; 4586#L2822-4true assume { :end_inline_timeShift } true;cleanup_~i~2#1 := 1 + cleanup_~i~2#1; 9371#L703-2true [2022-10-17 11:09:00,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:09:00,500 INFO L85 PathProgramCache]: Analyzing trace with hash -365716126, now seen corresponding path program 1 times [2022-10-17 11:09:00,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:09:00,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018488056] [2022-10-17 11:09:00,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:09:00,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:09:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:09:00,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:09:00,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:09:00,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018488056] [2022-10-17 11:09:00,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018488056] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:09:00,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:09:00,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:09:00,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796209211] [2022-10-17 11:09:00,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:09:00,884 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 11:09:00,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:09:00,885 INFO L85 PathProgramCache]: Analyzing trace with hash 639244268, now seen corresponding path program 1 times [2022-10-17 11:09:00,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:09:00,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531992870] [2022-10-17 11:09:00,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:09:00,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:09:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:09:01,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:09:01,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:09:01,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531992870] [2022-10-17 11:09:01,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531992870] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:09:01,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:09:01,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 11:09:01,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695129519] [2022-10-17 11:09:01,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:09:01,031 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 11:09:01,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:09:01,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 11:09:01,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-17 11:09:01,105 INFO L87 Difference]: Start difference. First operand has 11841 states, 11840 states have (on average 1.8693412162162162) internal successors, (22133), 11840 states have internal predecessors, (22133), 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 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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)