./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0 --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 c2c09c553453ff5cc1c780de43f9253f29851703b462741b40e69cde342fa216 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:11:38,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:11:38,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:11:38,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:11:38,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:11:38,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:11:38,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:11:38,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:11:38,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:11:38,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:11:38,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:11:38,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:11:38,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:11:38,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:11:38,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:11:38,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:11:38,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:11:38,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:11:38,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:11:38,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:11:38,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:11:38,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:11:38,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:11:38,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:11:38,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:11:38,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:11:38,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:11:38,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:11:38,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:11:38,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:11:38,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:11:38,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:11:38,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:11:38,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:11:38,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:11:38,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:11:38,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:11:38,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:11:38,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:11:38,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:11:38,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:11:38,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-22 15:11:38,818 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:11:38,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:11:38,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:11:38,820 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:11:38,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:11:38,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:11:38,823 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:11:38,823 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-22 15:11:38,823 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-22 15:11:38,823 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-22 15:11:38,825 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-22 15:11:38,825 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-22 15:11:38,825 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-22 15:11:38,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:11:38,826 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:11:38,826 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 15:11:38,827 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:11:38,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:11:38,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:11:38,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-22 15:11:38,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-22 15:11:38,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-22 15:11:38,828 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:11:38,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:11:38,829 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-22 15:11:38,829 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:11:38,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-22 15:11:38,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:11:38,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:11:38,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:11:38,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:11:38,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:11:38,833 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-22 15:11:38,833 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_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2c09c553453ff5cc1c780de43f9253f29851703b462741b40e69cde342fa216 [2021-11-22 15:11:39,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:11:39,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:11:39,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:11:39,326 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:11:39,329 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:11:39,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c [2021-11-22 15:11:39,421 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0/data/79cb547f7/e23d780e4a0f4203be90554deea10d29/FLAGea4cedf2a [2021-11-22 15:11:40,162 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:11:40,177 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c [2021-11-22 15:11:40,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0/data/79cb547f7/e23d780e4a0f4203be90554deea10d29/FLAGea4cedf2a [2021-11-22 15:11:40,372 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0/data/79cb547f7/e23d780e4a0f4203be90554deea10d29 [2021-11-22 15:11:40,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:11:40,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:11:40,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:11:40,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:11:40,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:11:40,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:11:40" (1/1) ... [2021-11-22 15:11:40,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e64fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:11:40, skipping insertion in model container [2021-11-22 15:11:40,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:11:40" (1/1) ... [2021-11-22 15:11:40,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:11:40,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:11:40,927 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_73368c62-0436-4f2f-bc00-0e0133870755/sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c[17711,17724] [2021-11-22 15:11:40,928 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:11:40,941 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:11:41,067 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_73368c62-0436-4f2f-bc00-0e0133870755/sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c[17711,17724] [2021-11-22 15:11:41,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:11:41,093 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:11:41,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:11:41 WrapperNode [2021-11-22 15:11:41,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:11:41,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:11:41,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:11:41,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:11:41,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:11:41" (1/1) ... [2021-11-22 15:11:41,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:11:41" (1/1) ... [2021-11-22 15:11:41,169 INFO L137 Inliner]: procedures = 53, calls = 152, calls flagged for inlining = 49, calls inlined = 55, statements flattened = 402 [2021-11-22 15:11:41,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:11:41,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:11:41,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:11:41,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:11:41,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:11:41" (1/1) ... [2021-11-22 15:11:41,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:11:41" (1/1) ... [2021-11-22 15:11:41,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:11:41" (1/1) ... [2021-11-22 15:11:41,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:11:41" (1/1) ... [2021-11-22 15:11:41,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:11:41" (1/1) ... [2021-11-22 15:11:41,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:11:41" (1/1) ... [2021-11-22 15:11:41,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:11:41" (1/1) ... [2021-11-22 15:11:41,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:11:41,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:11:41,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:11:41,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:11:41,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:11:41" (1/1) ... [2021-11-22 15:11:41,278 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:11:41,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:11:41,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:11:41,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-22 15:11:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:11:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:11:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:11:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:11:41,529 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:11:41,532 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:11:42,028 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:11:42,039 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:11:42,040 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-22 15:11:42,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:11:42 BoogieIcfgContainer [2021-11-22 15:11:42,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:11:42,044 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-22 15:11:42,044 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-22 15:11:42,049 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-22 15:11:42,050 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 15:11:42,050 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 03:11:40" (1/3) ... [2021-11-22 15:11:42,053 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31e02021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 03:11:42, skipping insertion in model container [2021-11-22 15:11:42,053 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 15:11:42,054 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:11:41" (2/3) ... [2021-11-22 15:11:42,054 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31e02021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 03:11:42, skipping insertion in model container [2021-11-22 15:11:42,054 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 15:11:42,055 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:11:42" (3/3) ... [2021-11-22 15:11:42,056 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product06.cil.c [2021-11-22 15:11:42,147 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-22 15:11:42,147 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-22 15:11:42,147 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-22 15:11:42,148 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-22 15:11:42,148 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-22 15:11:42,148 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-22 15:11:42,148 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-22 15:11:42,149 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-22 15:11:42,180 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.349056603773585) internal successors, (143), 106 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:11:42,237 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-11-22 15:11:42,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 15:11:42,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 15:11:42,248 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:11:42,248 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:11:42,248 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-22 15:11:42,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.349056603773585) internal successors, (143), 106 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:11:42,259 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-11-22 15:11:42,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 15:11:42,259 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 15:11:42,261 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:11:42,261 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:11:42,268 INFO L791 eck$LassoCheckResult]: Stem: 100#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(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 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(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 33#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~6#1, main_~tmp~2#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; 9#L161true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 81#L154true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; 47#L169true main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 107#L478true assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; 36#L453true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 39#L499true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 73#L187-2true [2021-11-22 15:11:42,270 INFO L793 eck$LassoCheckResult]: Loop: 73#L187-2true assume !false; 16#L188true assume test_~splverifierCounter~0#1 < 4; 78#L189true test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 63#L197true assume !(0 != test_~tmp~0#1); 91#L197-2true test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 59#L207true assume !(0 != test_~tmp___0~0#1); 79#L207-2true test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 18#L217true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 31#L225true assume 0 != test_~tmp___1~0#1; 48#L225-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret25#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 101#L345true __utac_acc__Specification5_spec__2_#t~ret25#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25#1;havoc __utac_acc__Specification5_spec__2_#t~ret25#1; 41#L509true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 54#L260true assume !(0 != ~pumpRunning~0); 83#L260-2true assume !(0 != ~systemActive~0); 29#L267-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret26#1, __utac_acc__Specification5_spec__3_#t~ret27#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 38#L131true __utac_acc__Specification5_spec__3_#t~ret26#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret26#1;havoc __utac_acc__Specification5_spec__3_#t~ret26#1; 34#L520true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 11#L520-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 104#L277true assume { :end_inline_timeShift } true; 73#L187-2true [2021-11-22 15:11:42,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:11:42,278 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-11-22 15:11:42,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:11:42,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252062450] [2021-11-22 15:11:42,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:11:42,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:11:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:11:42,481 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:11:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:11:42,567 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:11:42,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:11:42,572 INFO L85 PathProgramCache]: Analyzing trace with hash -884134132, now seen corresponding path program 1 times [2021-11-22 15:11:42,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:11:42,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84826326] [2021-11-22 15:11:42,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:11:42,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:11:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:11:42,587 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:11:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:11:42,609 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:11:42,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:11:42,612 INFO L85 PathProgramCache]: Analyzing trace with hash 545614211, now seen corresponding path program 1 times [2021-11-22 15:11:42,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:11:42,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577752638] [2021-11-22 15:11:42,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:11:42,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:11:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:11:42,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:11:42,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:11:42,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577752638] [2021-11-22 15:11:42,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577752638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:11:42,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:11:42,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 15:11:42,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635606533] [2021-11-22 15:11:42,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:11:43,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:11:43,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:11:43,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:11:43,284 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 1.349056603773585) internal successors, (143), 106 states have internal predecessors, (143), 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 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:11:43,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:11:43,400 INFO L93 Difference]: Finished difference Result 104 states and 129 transitions. [2021-11-22 15:11:43,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:11:43,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 129 transitions. [2021-11-22 15:11:43,415 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-11-22 15:11:43,426 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 94 states and 119 transitions. [2021-11-22 15:11:43,430 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94 [2021-11-22 15:11:43,431 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2021-11-22 15:11:43,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 119 transitions. [2021-11-22 15:11:43,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:11:43,433 INFO L681 BuchiCegarLoop]: Abstraction has 94 states and 119 transitions. [2021-11-22 15:11:43,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 119 transitions. [2021-11-22 15:11:43,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-11-22 15:11:43,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 93 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:11:43,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 119 transitions. [2021-11-22 15:11:43,479 INFO L704 BuchiCegarLoop]: Abstraction has 94 states and 119 transitions. [2021-11-22 15:11:43,479 INFO L587 BuchiCegarLoop]: Abstraction has 94 states and 119 transitions. [2021-11-22 15:11:43,479 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-22 15:11:43,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 119 transitions. [2021-11-22 15:11:43,483 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-11-22 15:11:43,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 15:11:43,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 15:11:43,484 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:11:43,485 INFO L843 BuchiCegarLoop]: 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] [2021-11-22 15:11:43,485 INFO L791 eck$LassoCheckResult]: Stem: 317#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(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 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(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 306#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~6#1, main_~tmp~2#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; 262#L161 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 263#L154 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; 290#L169 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 320#L478 assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; 308#L453 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 309#L499 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 274#L187-2 [2021-11-22 15:11:43,485 INFO L793 eck$LassoCheckResult]: Loop: 274#L187-2 assume !false; 275#L188 assume test_~splverifierCounter~0#1 < 4; 278#L189 test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 251#L197 assume !(0 != test_~tmp~0#1); 252#L197-2 test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 240#L207 assume !(0 != test_~tmp___0~0#1); 241#L207-2 test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 283#L217 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 285#L390 assume { :end_inline_startSystem } true; 291#L225-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret25#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 319#L345 __utac_acc__Specification5_spec__2_#t~ret25#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25#1;havoc __utac_acc__Specification5_spec__2_#t~ret25#1; 313#L509 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 314#L260 assume !(0 != ~pumpRunning~0); 292#L260-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 287#L292 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 289#L284-1 assume { :end_inline_processEnvironment__wrappee__base } true; 295#L292-1 assume { :end_inline_processEnvironment } true; 297#L267-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret26#1, __utac_acc__Specification5_spec__3_#t~ret27#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 303#L131 __utac_acc__Specification5_spec__3_#t~ret26#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret26#1;havoc __utac_acc__Specification5_spec__3_#t~ret26#1; 307#L520 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 230#L520-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 272#L277 assume { :end_inline_timeShift } true; 274#L187-2 [2021-11-22 15:11:43,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:11:43,487 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-11-22 15:11:43,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:11:43,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033724053] [2021-11-22 15:11:43,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:11:43,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:11:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:11:43,513 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:11:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:11:43,546 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:11:43,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:11:43,547 INFO L85 PathProgramCache]: Analyzing trace with hash -718549808, now seen corresponding path program 1 times [2021-11-22 15:11:43,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:11:43,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139548901] [2021-11-22 15:11:43,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:11:43,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:11:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:11:43,561 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:11:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:11:43,583 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:11:43,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:11:43,588 INFO L85 PathProgramCache]: Analyzing trace with hash -276337927, now seen corresponding path program 1 times [2021-11-22 15:11:43,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:11:43,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400690965] [2021-11-22 15:11:43,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:11:43,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:11:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:11:43,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:11:43,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:11:43,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400690965] [2021-11-22 15:11:43,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400690965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:11:43,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:11:43,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:11:43,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527769557] [2021-11-22 15:11:43,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:11:44,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:11:44,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 15:11:44,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:11:44,013 INFO L87 Difference]: Start difference. First operand 94 states and 119 transitions. cyclomatic complexity: 27 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:11:44,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:11:44,337 INFO L93 Difference]: Finished difference Result 388 states and 489 transitions. [2021-11-22 15:11:44,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 15:11:44,339 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 388 states and 489 transitions. [2021-11-22 15:11:44,350 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 259 [2021-11-22 15:11:44,357 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 388 states to 388 states and 489 transitions. [2021-11-22 15:11:44,358 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 388 [2021-11-22 15:11:44,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 388 [2021-11-22 15:11:44,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 388 states and 489 transitions. [2021-11-22 15:11:44,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:11:44,364 INFO L681 BuchiCegarLoop]: Abstraction has 388 states and 489 transitions. [2021-11-22 15:11:44,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states and 489 transitions. [2021-11-22 15:11:44,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 177. [2021-11-22 15:11:44,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 177 states have (on average 1.2485875706214689) internal successors, (221), 176 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:11:44,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 221 transitions. [2021-11-22 15:11:44,415 INFO L704 BuchiCegarLoop]: Abstraction has 177 states and 221 transitions. [2021-11-22 15:11:44,415 INFO L587 BuchiCegarLoop]: Abstraction has 177 states and 221 transitions. [2021-11-22 15:11:44,415 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-22 15:11:44,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 221 transitions. [2021-11-22 15:11:44,432 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2021-11-22 15:11:44,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 15:11:44,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 15:11:44,434 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:11:44,440 INFO L843 BuchiCegarLoop]: 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, 1, 1] [2021-11-22 15:11:44,441 INFO L791 eck$LassoCheckResult]: Stem: 836#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(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 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(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 815#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~6#1, main_~tmp~2#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; 758#L161 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 759#L154 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; 794#L169 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 839#L478 assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; 818#L453 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 819#L499 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 823#L187-2 [2021-11-22 15:11:44,451 INFO L793 eck$LassoCheckResult]: Loop: 823#L187-2 assume !false; 873#L188 assume test_~splverifierCounter~0#1 < 4; 874#L189 test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 886#L197 assume !(0 != test_~tmp~0#1); 884#L197-2 test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 882#L207 assume !(0 != test_~tmp___0~0#1); 880#L207-2 test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 787#L217 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 788#L390 assume { :end_inline_startSystem } true; 796#L225-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret25#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 838#L345 __utac_acc__Specification5_spec__2_#t~ret25#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25#1;havoc __utac_acc__Specification5_spec__2_#t~ret25#1; 831#L509 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 832#L260 assume !(0 != ~pumpRunning~0); 797#L260-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 790#L292 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 792#L284-1 assume { :end_inline_processEnvironment__wrappee__base } true; 801#L292-1 assume { :end_inline_processEnvironment } true; 804#L267-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret26#1, __utac_acc__Specification5_spec__3_#t~ret27#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 812#L131 __utac_acc__Specification5_spec__3_#t~ret26#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret26#1;havoc __utac_acc__Specification5_spec__3_#t~ret26#1; 816#L520 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 817#L345-1 __utac_acc__Specification5_spec__3_#t~ret27#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~1#1 := __utac_acc__Specification5_spec__3_#t~ret27#1;havoc __utac_acc__Specification5_spec__3_#t~ret27#1; 878#L524 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1#1); 876#L520-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 875#L277 assume { :end_inline_timeShift } true; 823#L187-2 [2021-11-22 15:11:44,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:11:44,453 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-11-22 15:11:44,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:11:44,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111015321] [2021-11-22 15:11:44,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:11:44,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:11:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:11:44,473 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:11:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:11:44,504 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:11:44,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:11:44,505 INFO L85 PathProgramCache]: Analyzing trace with hash 944270347, now seen corresponding path program 1 times [2021-11-22 15:11:44,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:11:44,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964807485] [2021-11-22 15:11:44,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:11:44,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:11:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:11:44,515 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:11:44,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:11:44,525 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:11:44,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:11:44,526 INFO L85 PathProgramCache]: Analyzing trace with hash 708125684, now seen corresponding path program 1 times [2021-11-22 15:11:44,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:11:44,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532324334] [2021-11-22 15:11:44,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:11:44,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:11:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:11:44,552 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:11:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:11:44,605 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:11:49,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 03:11:49 BoogieIcfgContainer [2021-11-22 15:11:49,037 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-22 15:11:49,038 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:11:49,038 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:11:49,038 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:11:49,039 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:11:42" (3/4) ... [2021-11-22 15:11:49,043 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-22 15:11:49,157 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 15:11:49,157 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:11:49,158 INFO L158 Benchmark]: Toolchain (without parser) took 8780.14ms. Allocated memory was 98.6MB in the beginning and 169.9MB in the end (delta: 71.3MB). Free memory was 57.1MB in the beginning and 106.0MB in the end (delta: -48.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-22 15:11:49,159 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 98.6MB. Free memory was 74.2MB in the beginning and 74.1MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:11:49,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 710.53ms. Allocated memory is still 98.6MB. Free memory was 57.0MB in the beginning and 64.6MB in the end (delta: -7.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-22 15:11:49,161 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.30ms. Allocated memory is still 98.6MB. Free memory was 64.6MB in the beginning and 61.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:11:49,162 INFO L158 Benchmark]: Boogie Preprocessor took 83.46ms. Allocated memory is still 98.6MB. Free memory was 61.7MB in the beginning and 60.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:11:49,163 INFO L158 Benchmark]: RCFGBuilder took 787.79ms. Allocated memory is still 98.6MB. Free memory was 60.0MB in the beginning and 43.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-22 15:11:49,163 INFO L158 Benchmark]: BuchiAutomizer took 6992.90ms. Allocated memory was 98.6MB in the beginning and 169.9MB in the end (delta: 71.3MB). Free memory was 42.8MB in the beginning and 109.2MB in the end (delta: -66.3MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2021-11-22 15:11:49,165 INFO L158 Benchmark]: Witness Printer took 119.51ms. Allocated memory is still 169.9MB. Free memory was 109.2MB in the beginning and 106.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:11:49,169 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 98.6MB. Free memory was 74.2MB in the beginning and 74.1MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 710.53ms. Allocated memory is still 98.6MB. Free memory was 57.0MB in the beginning and 64.6MB in the end (delta: -7.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.30ms. Allocated memory is still 98.6MB. Free memory was 64.6MB in the beginning and 61.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.46ms. Allocated memory is still 98.6MB. Free memory was 61.7MB in the beginning and 60.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 787.79ms. Allocated memory is still 98.6MB. Free memory was 60.0MB in the beginning and 43.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 6992.90ms. Allocated memory was 98.6MB in the beginning and 169.9MB in the end (delta: 71.3MB). Free memory was 42.8MB in the beginning and 109.2MB in the end (delta: -66.3MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. * Witness Printer took 119.51ms. Allocated memory is still 169.9MB. Free memory was 109.2MB in the beginning and 106.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 177 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 6.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 211 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 177 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 943 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 943 mSDsluCounter, 860 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 570 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 290 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 187]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@537e39cc=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53c7126b=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6863c2a9=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9998f14=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bea6664=0, methaneLevelCritical=0, tmp=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e7aae22=0, retValue_acc=1, retValue_acc=0, tmp___2=29, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fb83b98=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bc21c38=0, switchedOnBeforeTS=0, tmp=1, \result=0, tmp=0, tmp___0=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@291bffdf=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 187]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L248] int pumpRunning = 0; [L249] int systemActive = 1; [L394] int cleanupTimeShifts = 4; [L493] int switchedOnBeforeTS ; [L711] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L469] int retValue_acc ; [L470] int tmp ; [L474] FCALL select_helpers() [L475] FCALL select_features() [L476] CALL, EXPR valid_product() [L165] int retValue_acc ; [L168] retValue_acc = 1 [L169] return (retValue_acc); [L476] RET, EXPR valid_product() [L476] tmp = valid_product() [L478] COND TRUE \read(tmp) [L480] FCALL setup() [L481] CALL runTest() [L462] CALL __utac_acc__Specification5_spec__1() [L498] switchedOnBeforeTS = 0 [L462] RET __utac_acc__Specification5_spec__1() [L463] CALL test() [L178] int splverifierCounter ; [L179] int tmp ; [L180] int tmp___0 ; [L181] int tmp___1 ; [L182] int tmp___2 ; [L185] splverifierCounter = 0 Loop: [L187] COND TRUE 1 [L189] COND TRUE splverifierCounter < 4 [L195] tmp = __VERIFIER_nondet_int() [L197] COND FALSE !(\read(tmp)) [L205] tmp___0 = __VERIFIER_nondet_int() [L207] COND FALSE !(\read(tmp___0)) [L215] tmp___2 = __VERIFIER_nondet_int() [L217] COND TRUE \read(tmp___2) [L219] CALL startSystem() [L389] systemActive = 1 [L219] RET startSystem() [L232] CALL timeShift() [L258] CALL __utac_acc__Specification5_spec__2() [L507] CALL, EXPR isPumpRunning() [L341] int retValue_acc ; [L344] retValue_acc = pumpRunning [L345] return (retValue_acc); [L507] RET, EXPR isPumpRunning() [L507] switchedOnBeforeTS = isPumpRunning() [L258] RET __utac_acc__Specification5_spec__2() [L260] COND FALSE !(\read(pumpRunning)) [L267] COND TRUE \read(systemActive) [L269] CALL processEnvironment() [L289] int tmp ; [L292] COND FALSE !(\read(pumpRunning)) [L307] FCALL processEnvironment__wrappee__base() [L269] RET processEnvironment() [L275] CALL __utac_acc__Specification5_spec__3() [L513] int tmp ; [L514] int tmp___0 ; [L518] CALL, EXPR getWaterLevel() [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L518] RET, EXPR getWaterLevel() [L518] tmp = getWaterLevel() [L520] COND TRUE tmp != 2 [L522] CALL, EXPR isPumpRunning() [L341] int retValue_acc ; [L344] retValue_acc = pumpRunning [L345] return (retValue_acc); [L522] RET, EXPR isPumpRunning() [L522] tmp___0 = isPumpRunning() [L524] COND FALSE !(\read(tmp___0)) [L275] RET __utac_acc__Specification5_spec__3() [L232] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-22 15:11:49,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73368c62-0436-4f2f-bc00-0e0133870755/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)