./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF --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 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:11:27,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:11:27,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:11:27,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:11:27,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:11:27,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:11:27,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:11:27,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:11:27,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:11:27,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:11:27,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:11:27,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:11:27,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:11:27,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:11:27,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:11:27,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:11:27,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:11:27,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:11:27,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:11:27,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:11:27,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:11:27,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:11:27,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:11:27,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:11:27,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:11:27,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:11:27,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:11:27,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:11:27,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:11:27,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:11:27,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:11:27,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:11:27,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:11:27,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:11:27,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:11:27,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:11:27,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:11:27,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:11:27,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:11:27,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:11:27,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:11:27,787 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 07:11:27,831 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:11:27,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:11:27,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:11:27,832 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:11:27,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:11:27,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:11:27,833 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:11:27,834 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:11:27,834 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:11:27,834 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:11:27,834 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:11:27,835 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:11:27,835 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:11:27,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:11:27,835 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:11:27,835 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:11:27,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:11:27,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:11:27,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:11:27,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:11:27,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:11:27,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:11:27,837 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:11:27,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:11:27,837 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:11:27,837 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:11:27,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:11:27,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:11:27,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:11:27,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:11:27,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:11:27,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:11:27,840 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:11:27,840 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_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a [2021-11-20 07:11:28,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:11:28,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:11:28,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:11:28,224 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:11:28,225 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:11:28,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2021-11-20 07:11:28,332 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF/data/4d9441ec4/4ce2370de5544c3e84ce6ebafcf56a01/FLAG6261e2424 [2021-11-20 07:11:28,875 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:11:28,876 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2021-11-20 07:11:28,894 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF/data/4d9441ec4/4ce2370de5544c3e84ce6ebafcf56a01/FLAG6261e2424 [2021-11-20 07:11:29,195 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF/data/4d9441ec4/4ce2370de5544c3e84ce6ebafcf56a01 [2021-11-20 07:11:29,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:11:29,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:11:29,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:11:29,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:11:29,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:11:29,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:11:29" (1/1) ... [2021-11-20 07:11:29,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d24c65b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:29, skipping insertion in model container [2021-11-20 07:11:29,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:11:29" (1/1) ... [2021-11-20 07:11:29,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:11:29,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:11:29,543 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_076678fa-437a-4031-933a-3fbdc650f6e3/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c[18691,18704] [2021-11-20 07:11:29,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:11:29,554 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:11:29,624 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_076678fa-437a-4031-933a-3fbdc650f6e3/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c[18691,18704] [2021-11-20 07:11:29,624 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:11:29,642 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:11:29,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:29 WrapperNode [2021-11-20 07:11:29,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:11:29,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:11:29,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:11:29,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:11:29,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:29" (1/1) ... [2021-11-20 07:11:29,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:29" (1/1) ... [2021-11-20 07:11:29,719 INFO L137 Inliner]: procedures = 56, calls = 156, calls flagged for inlining = 53, calls inlined = 95, statements flattened = 725 [2021-11-20 07:11:29,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:11:29,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:11:29,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:11:29,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:11:29,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:29" (1/1) ... [2021-11-20 07:11:29,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:29" (1/1) ... [2021-11-20 07:11:29,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:29" (1/1) ... [2021-11-20 07:11:29,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:29" (1/1) ... [2021-11-20 07:11:29,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:29" (1/1) ... [2021-11-20 07:11:29,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:29" (1/1) ... [2021-11-20 07:11:29,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:29" (1/1) ... [2021-11-20 07:11:29,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:11:29,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:11:29,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:11:29,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:11:29,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:29" (1/1) ... [2021-11-20 07:11:29,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:11:29,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:11:29,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:11:29,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:11:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:11:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:11:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:11:29,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:11:30,045 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:11:30,061 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:11:30,664 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:11:30,674 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:11:30,674 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 07:11:30,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:11:30 BoogieIcfgContainer [2021-11-20 07:11:30,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:11:30,682 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:11:30,683 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:11:30,688 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:11:30,689 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:11:30,689 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:11:29" (1/3) ... [2021-11-20 07:11:30,691 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@736f0c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:11:30, skipping insertion in model container [2021-11-20 07:11:30,691 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:11:30,691 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:11:29" (2/3) ... [2021-11-20 07:11:30,692 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@736f0c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:11:30, skipping insertion in model container [2021-11-20 07:11:30,692 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:11:30,692 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:11:30" (3/3) ... [2021-11-20 07:11:30,693 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2021-11-20 07:11:30,737 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:11:30,737 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:11:30,737 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:11:30,737 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:11:30,737 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:11:30,738 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:11:30,738 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:11:30,738 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:11:30,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 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) [2021-11-20 07:11:30,811 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2021-11-20 07:11:30,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:11:30,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:11:30,819 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:11:30,819 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:11:30,819 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:11:30,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 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) [2021-11-20 07:11:30,830 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2021-11-20 07:11:30,830 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:11:30,830 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:11:30,831 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:11:30,832 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:11:30,836 INFO L791 eck$LassoCheckResult]: Stem: 165#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 56#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~10#1, main_~tmp~7#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 160#L500true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 18#L493true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 43#L508true main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 184#L595true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 143#L572true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#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; 186#L64-2true [2021-11-20 07:11:30,837 INFO L793 eck$LassoCheckResult]: Loop: 186#L64-2true assume !false; 187#L65true assume test_~splverifierCounter~0#1 < 4; 49#L66true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 101#L74true assume !(0 != test_~tmp~0#1); 146#L74-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 161#L84true assume !(0 != test_~tmp___0~0#1); 35#L84-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 162#L94true assume 0 != test_~tmp___2~0#1; 135#L100-2true assume { :begin_inline_timeShift } true; 22#L136true assume !(0 != ~pumpRunning~0); 44#L136-2true assume !(0 != ~systemActive~0); 119#L143-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 36#L447true __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 79#L354true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 58#L354-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 11#L153true assume { :end_inline_timeShift } true; 186#L64-2true [2021-11-20 07:11:30,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:11:30,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-11-20 07:11:30,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:11:30,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678955960] [2021-11-20 07:11:30,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:30,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:11:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:11:30,960 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:11:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:11:31,013 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:11:31,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:11:31,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1892791780, now seen corresponding path program 1 times [2021-11-20 07:11:31,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:11:31,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424449725] [2021-11-20 07:11:31,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:31,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:11:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:11:31,025 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:11:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:11:31,069 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:11:31,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:11:31,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1046756440, now seen corresponding path program 1 times [2021-11-20 07:11:31,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:11:31,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993815605] [2021-11-20 07:11:31,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:31,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:11:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:31,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:11:31,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:11:31,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993815605] [2021-11-20 07:11:31,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993815605] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:11:31,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:11:31,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:11:31,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742813142] [2021-11-20 07:11:31,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:11:31,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:11:31,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:11:31,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:11:31,458 INFO L87 Difference]: Start difference. First operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 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 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2021-11-20 07:11:31,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:11:31,577 INFO L93 Difference]: Finished difference Result 183 states and 238 transitions. [2021-11-20 07:11:31,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:11:31,595 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 238 transitions. [2021-11-20 07:11:31,601 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2021-11-20 07:11:31,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 173 states and 228 transitions. [2021-11-20 07:11:31,625 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 173 [2021-11-20 07:11:31,626 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 173 [2021-11-20 07:11:31,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 228 transitions. [2021-11-20 07:11:31,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:11:31,629 INFO L681 BuchiCegarLoop]: Abstraction has 173 states and 228 transitions. [2021-11-20 07:11:31,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 228 transitions. [2021-11-20 07:11:31,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2021-11-20 07:11:31,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 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) [2021-11-20 07:11:31,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 228 transitions. [2021-11-20 07:11:31,696 INFO L704 BuchiCegarLoop]: Abstraction has 173 states and 228 transitions. [2021-11-20 07:11:31,697 INFO L587 BuchiCegarLoop]: Abstraction has 173 states and 228 transitions. [2021-11-20 07:11:31,697 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 07:11:31,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states and 228 transitions. [2021-11-20 07:11:31,712 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2021-11-20 07:11:31,712 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:11:31,712 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:11:31,714 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:11:31,714 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] [2021-11-20 07:11:31,714 INFO L791 eck$LassoCheckResult]: Stem: 558#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 482#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~10#1, main_~tmp~7#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 483#L500 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 417#L493 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 418#L508 main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 462#L595 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 551#L572 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#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; 402#L64-2 [2021-11-20 07:11:31,714 INFO L793 eck$LassoCheckResult]: Loop: 402#L64-2 assume !false; 559#L65 assume test_~splverifierCounter~0#1 < 4; 472#L66 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 473#L74 assume !(0 != test_~tmp~0#1); 521#L74-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 553#L84 assume !(0 != test_~tmp___0~0#1); 450#L84-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 451#L94 assume 0 != test_~tmp___2~0#1; 497#L100-2 assume { :begin_inline_timeShift } true; 423#L136 assume !(0 != ~pumpRunning~0); 424#L136-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 463#L194 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 403#L168-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 405#L160-3 assume { :end_inline_processEnvironment__wrappee__base } true; 460#L168-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 399#L194-1 assume { :end_inline_processEnvironment } true; 400#L143-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 452#L447 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 453#L354 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 412#L354-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 401#L153 assume { :end_inline_timeShift } true; 402#L64-2 [2021-11-20 07:11:31,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:11:31,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-11-20 07:11:31,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:11:31,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356428454] [2021-11-20 07:11:31,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:31,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:11:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:11:31,741 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:11:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:11:31,778 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:11:31,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:11:31,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1698451121, now seen corresponding path program 1 times [2021-11-20 07:11:31,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:11:31,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030580963] [2021-11-20 07:11:31,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:31,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:11:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:31,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:11:31,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:11:31,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030580963] [2021-11-20 07:11:31,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030580963] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:11:31,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:11:31,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:11:31,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559142513] [2021-11-20 07:11:31,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:11:31,817 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:11:31,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:11:31,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:11:31,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:11:31,821 INFO L87 Difference]: Start difference. First operand 173 states and 228 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-20 07:11:31,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:11:31,931 INFO L93 Difference]: Finished difference Result 234 states and 296 transitions. [2021-11-20 07:11:31,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:11:31,932 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 234 states and 296 transitions. [2021-11-20 07:11:31,936 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 162 [2021-11-20 07:11:31,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 234 states to 234 states and 296 transitions. [2021-11-20 07:11:31,947 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 234 [2021-11-20 07:11:31,949 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 234 [2021-11-20 07:11:31,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 234 states and 296 transitions. [2021-11-20 07:11:31,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:11:31,954 INFO L681 BuchiCegarLoop]: Abstraction has 234 states and 296 transitions. [2021-11-20 07:11:31,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states and 296 transitions. [2021-11-20 07:11:31,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-11-20 07:11:31,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 234 states have (on average 1.264957264957265) internal successors, (296), 233 states have internal predecessors, (296), 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) [2021-11-20 07:11:31,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 296 transitions. [2021-11-20 07:11:31,986 INFO L704 BuchiCegarLoop]: Abstraction has 234 states and 296 transitions. [2021-11-20 07:11:31,986 INFO L587 BuchiCegarLoop]: Abstraction has 234 states and 296 transitions. [2021-11-20 07:11:31,986 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 07:11:31,987 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 296 transitions. [2021-11-20 07:11:31,990 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 162 [2021-11-20 07:11:31,991 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:11:31,991 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:11:31,994 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:11:31,994 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, 1, 1, 1] [2021-11-20 07:11:31,995 INFO L791 eck$LassoCheckResult]: Stem: 980#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 895#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~10#1, main_~tmp~7#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 896#L500 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 827#L493 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 828#L508 main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 873#L595 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 970#L572 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#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; 815#L64-2 [2021-11-20 07:11:31,996 INFO L793 eck$LassoCheckResult]: Loop: 815#L64-2 assume !false; 982#L65 assume test_~splverifierCounter~0#1 < 4; 883#L66 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 884#L74 assume !(0 != test_~tmp~0#1); 936#L74-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 973#L84 assume !(0 != test_~tmp___0~0#1); 860#L84-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 861#L94 assume 0 != test_~tmp___2~0#1; 913#L100-2 assume { :begin_inline_timeShift } true; 835#L136 assume !(0 != ~pumpRunning~0); 836#L136-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 874#L194 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 816#L168-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 817#L455-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 846#L460-1 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 869#L314-3 assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1; 818#L314-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 819#L320-1 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 859#L172-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 943#L160-2 assume { :end_inline_processEnvironment__wrappee__base } true; 870#L168-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 812#L194-1 assume { :end_inline_processEnvironment } true; 813#L143-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 862#L447 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 863#L354 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 824#L354-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 814#L153 assume { :end_inline_timeShift } true; 815#L64-2 [2021-11-20 07:11:31,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:11:31,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-11-20 07:11:31,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:11:31,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213120030] [2021-11-20 07:11:31,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:31,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:11:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:11:32,032 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:11:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:11:32,059 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:11:32,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:11:32,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1557202683, now seen corresponding path program 1 times [2021-11-20 07:11:32,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:11:32,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757240002] [2021-11-20 07:11:32,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:32,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:11:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:11:32,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:11:32,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:11:32,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757240002] [2021-11-20 07:11:32,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757240002] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:11:32,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:11:32,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:11:32,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353657846] [2021-11-20 07:11:32,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:11:32,102 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:11:32,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:11:32,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:11:32,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:11:32,103 INFO L87 Difference]: Start difference. First operand 234 states and 296 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 5.4) 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) [2021-11-20 07:11:32,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:11:32,287 INFO L93 Difference]: Finished difference Result 705 states and 881 transitions. [2021-11-20 07:11:32,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:11:32,289 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 705 states and 881 transitions. [2021-11-20 07:11:32,299 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 508 [2021-11-20 07:11:32,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 705 states to 705 states and 881 transitions. [2021-11-20 07:11:32,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 705 [2021-11-20 07:11:32,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 705 [2021-11-20 07:11:32,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 705 states and 881 transitions. [2021-11-20 07:11:32,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:11:32,321 INFO L681 BuchiCegarLoop]: Abstraction has 705 states and 881 transitions. [2021-11-20 07:11:32,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states and 881 transitions. [2021-11-20 07:11:32,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 252. [2021-11-20 07:11:32,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 252 states have (on average 1.246031746031746) internal successors, (314), 251 states have internal predecessors, (314), 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) [2021-11-20 07:11:32,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 314 transitions. [2021-11-20 07:11:32,363 INFO L704 BuchiCegarLoop]: Abstraction has 252 states and 314 transitions. [2021-11-20 07:11:32,363 INFO L587 BuchiCegarLoop]: Abstraction has 252 states and 314 transitions. [2021-11-20 07:11:32,364 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-20 07:11:32,364 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 252 states and 314 transitions. [2021-11-20 07:11:32,366 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2021-11-20 07:11:32,366 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:11:32,367 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:11:32,368 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:11:32,368 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, 1, 1, 1] [2021-11-20 07:11:32,368 INFO L791 eck$LassoCheckResult]: Stem: 1944#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1851#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~10#1, main_~tmp~7#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1852#L500 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1780#L493 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1781#L508 main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 1827#L595 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1933#L572 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#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; 1768#L64-2 [2021-11-20 07:11:32,370 INFO L793 eck$LassoCheckResult]: Loop: 1768#L64-2 assume !false; 1949#L65 assume test_~splverifierCounter~0#1 < 4; 1837#L66 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1838#L74 assume !(0 != test_~tmp~0#1); 1899#L74-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1937#L84 assume !(0 != test_~tmp___0~0#1); 1813#L84-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1814#L94 assume 0 != test_~tmp___2~0#1; 1873#L100-2 assume { :begin_inline_timeShift } true; 1788#L136 assume !(0 != ~pumpRunning~0); 1789#L136-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1828#L194 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1769#L168-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1770#L455-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 1799#L460-1 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 1822#L314-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1823#L314-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1952#L320-1 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1951#L172-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1906#L160-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1824#L168-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1765#L194-1 assume { :end_inline_processEnvironment } true; 1766#L143-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 1815#L447 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 1816#L354 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 1777#L354-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1767#L153 assume { :end_inline_timeShift } true; 1768#L64-2 [2021-11-20 07:11:32,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:11:32,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2021-11-20 07:11:32,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:11:32,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662680467] [2021-11-20 07:11:32,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:32,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:11:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:11:32,395 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:11:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:11:32,407 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:11:32,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:11:32,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1815368121, now seen corresponding path program 1 times [2021-11-20 07:11:32,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:11:32,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513347270] [2021-11-20 07:11:32,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:32,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:11:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:11:32,422 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:11:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:11:32,446 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:11:32,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:11:32,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1440080381, now seen corresponding path program 1 times [2021-11-20 07:11:32,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:11:32,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087750263] [2021-11-20 07:11:32,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:11:32,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:11:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:11:32,458 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:11:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:11:32,476 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:11:35,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:11:35 BoogieIcfgContainer [2021-11-20 07:11:35,828 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 07:11:35,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:11:35,829 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:11:35,829 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:11:35,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:11:30" (3/4) ... [2021-11-20 07:11:35,832 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-20 07:11:35,893 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:11:35,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:11:35,894 INFO L158 Benchmark]: Toolchain (without parser) took 6695.11ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 80.6MB in the beginning and 109.9MB in the end (delta: -29.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:11:35,895 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 79.7MB. Free memory was 51.9MB in the beginning and 51.8MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:11:35,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.21ms. Allocated memory is still 115.3MB. Free memory was 80.3MB in the beginning and 84.2MB in the end (delta: -3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:11:35,896 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.68ms. Allocated memory is still 115.3MB. Free memory was 83.9MB in the beginning and 80.0MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:11:35,896 INFO L158 Benchmark]: Boogie Preprocessor took 44.53ms. Allocated memory is still 115.3MB. Free memory was 80.0MB in the beginning and 77.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:11:35,897 INFO L158 Benchmark]: RCFGBuilder took 915.78ms. Allocated memory is still 115.3MB. Free memory was 77.6MB in the beginning and 53.9MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-20 07:11:35,898 INFO L158 Benchmark]: BuchiAutomizer took 5145.41ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 53.9MB in the beginning and 113.1MB in the end (delta: -59.2MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2021-11-20 07:11:35,898 INFO L158 Benchmark]: Witness Printer took 65.01ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 109.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:11:35,908 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 79.7MB. Free memory was 51.9MB in the beginning and 51.8MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 442.21ms. Allocated memory is still 115.3MB. Free memory was 80.3MB in the beginning and 84.2MB in the end (delta: -3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.68ms. Allocated memory is still 115.3MB. Free memory was 83.9MB in the beginning and 80.0MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.53ms. Allocated memory is still 115.3MB. Free memory was 80.0MB in the beginning and 77.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 915.78ms. Allocated memory is still 115.3MB. Free memory was 77.6MB in the beginning and 53.9MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 5145.41ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 53.9MB in the beginning and 113.1MB in the end (delta: -59.2MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. * Witness Printer took 65.01ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 109.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 252 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 453 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 252 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1822 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1822 mSDsluCounter, 1695 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 882 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 813 mSDtfsCounter, 129 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 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: 64]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9bc0bea=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40e388f5=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@187dc639=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c7f9b8d=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13305a3b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bf047d1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a9b0ff7=29, methaneLevelCritical=0, retValue_acc=1, retValue_acc=1, tmp=1, retValue_acc=0, \result=1, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@765cc92=0, tmp=1, tmp___2=29, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39189320=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, tmp___1=0, retValue_acc=1, NULL=0, waterLevel=1, systemActive=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e9e12ad=0, retValue_acc=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 64]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L128] int pumpRunning = 0; [L129] int systemActive = 1; [L372] int waterLevel = 1; [L373] int methaneLevelCritical = 0; [L513] int cleanupTimeShifts = 4; [L778] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L586] int retValue_acc ; [L587] int tmp ; [L591] FCALL select_helpers() [L592] FCALL select_features() [L593] CALL, EXPR valid_product() [L504] int retValue_acc ; [L507] retValue_acc = 1 [L508] return (retValue_acc); [L593] RET, EXPR valid_product() [L593] tmp = valid_product() [L595] COND TRUE \read(tmp) [L597] FCALL setup() [L598] CALL runTest() [L580] CALL test() [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 Loop: [L64] COND TRUE 1 [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) [L107] CALL timeShift() [L136] COND FALSE !(\read(pumpRunning)) [L143] COND TRUE \read(systemActive) [L145] CALL processEnvironment() [L191] int tmp ; [L194] COND FALSE !(\read(pumpRunning)) [L209] CALL processEnvironment__wrappee__highWaterSensor() [L165] int tmp ; [L168] COND TRUE ! pumpRunning [L170] CALL, EXPR isHighWaterLevel() [L306] int retValue_acc ; [L307] int tmp ; [L308] int tmp___0 ; [L312] CALL, EXPR isHighWaterSensorDry() [L452] int retValue_acc ; [L455] COND TRUE waterLevel < 2 [L456] retValue_acc = 1 [L457] return (retValue_acc); [L312] RET, EXPR isHighWaterSensorDry() [L312] tmp = isHighWaterSensorDry() [L314] COND TRUE \read(tmp) [L315] tmp___0 = 0 [L319] retValue_acc = tmp___0 [L320] return (retValue_acc); [L170] RET, EXPR isHighWaterLevel() [L170] tmp = isHighWaterLevel() [L172] COND FALSE !(\read(tmp)) [L178] FCALL processEnvironment__wrappee__base() [L209] RET processEnvironment__wrappee__highWaterSensor() [L145] RET processEnvironment() [L151] CALL __utac_acc__Specification4_spec__1() [L347] int tmp ; [L348] int tmp___0 ; [L352] CALL, EXPR getWaterLevel() [L443] int retValue_acc ; [L446] retValue_acc = waterLevel [L447] return (retValue_acc); [L352] RET, EXPR getWaterLevel() [L352] tmp = getWaterLevel() [L354] COND FALSE !(tmp == 0) [L151] RET __utac_acc__Specification4_spec__1() [L107] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-20 07:11:35,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_076678fa-437a-4031-933a-3fbdc650f6e3/bin/uautomizer-DQz5hQGWxF/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)