./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX --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 e0a38d188f2630eb8c92d710d8937425c14dd1581e9216671e138a935f7e01f2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:41:10,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:41:10,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:41:11,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:41:11,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:41:11,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:41:11,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:41:11,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:41:11,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:41:11,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:41:11,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:41:11,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:41:11,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:41:11,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:41:11,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:41:11,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:41:11,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:41:11,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:41:11,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:41:11,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:41:11,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:41:11,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:41:11,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:41:11,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:41:11,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:41:11,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:41:11,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:41:11,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:41:11,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:41:11,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:41:11,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:41:11,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:41:11,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:41:11,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:41:11,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:41:11,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:41:11,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:41:11,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:41:11,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:41:11,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:41:11,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:41:11,086 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 09:41:11,143 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:41:11,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:41:11,144 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:41:11,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:41:11,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:41:11,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:41:11,148 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:41:11,148 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 09:41:11,149 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 09:41:11,149 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 09:41:11,150 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 09:41:11,151 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 09:41:11,151 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 09:41:11,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:41:11,152 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:41:11,152 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 09:41:11,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:41:11,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:41:11,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:41:11,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 09:41:11,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 09:41:11,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 09:41:11,155 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:41:11,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:41:11,155 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 09:41:11,156 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:41:11,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 09:41:11,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:41:11,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:41:11,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:41:11,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:41:11,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:41:11,161 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 09:41:11,162 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_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0a38d188f2630eb8c92d710d8937425c14dd1581e9216671e138a935f7e01f2 [2021-11-09 09:41:11,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:41:11,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:41:11,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:41:11,596 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:41:11,598 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:41:11,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2021-11-09 09:41:11,695 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX/data/e454ed056/dd57c56bc39f47d0a04064b6916a8fef/FLAGb7a061f2c [2021-11-09 09:41:12,496 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:41:12,496 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2021-11-09 09:41:12,512 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX/data/e454ed056/dd57c56bc39f47d0a04064b6916a8fef/FLAGb7a061f2c [2021-11-09 09:41:12,715 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX/data/e454ed056/dd57c56bc39f47d0a04064b6916a8fef [2021-11-09 09:41:12,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:41:12,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:41:12,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:41:12,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:41:12,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:41:12,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:41:12" (1/1) ... [2021-11-09 09:41:12,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149ca7cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:12, skipping insertion in model container [2021-11-09 09:41:12,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:41:12" (1/1) ... [2021-11-09 09:41:12,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:41:12,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:41:13,173 WARN L228 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_95bc2559-da89-48de-bb2f-378175413fe9/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c[8087,8100] [2021-11-09 09:41:13,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:41:13,264 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:41:13,356 WARN L228 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_95bc2559-da89-48de-bb2f-378175413fe9/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c[8087,8100] [2021-11-09 09:41:13,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:41:13,468 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:41:13,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:13 WrapperNode [2021-11-09 09:41:13,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:41:13,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:41:13,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:41:13,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:41:13,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:13" (1/1) ... [2021-11-09 09:41:13,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:13" (1/1) ... [2021-11-09 09:41:13,564 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:41:13,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:41:13,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:41:13,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:41:13,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:13" (1/1) ... [2021-11-09 09:41:13,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:13" (1/1) ... [2021-11-09 09:41:13,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:13" (1/1) ... [2021-11-09 09:41:13,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:13" (1/1) ... [2021-11-09 09:41:13,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:13" (1/1) ... [2021-11-09 09:41:13,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:13" (1/1) ... [2021-11-09 09:41:13,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:13" (1/1) ... [2021-11-09 09:41:13,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:41:13,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:41:13,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:41:13,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:41:13,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:13" (1/1) ... [2021-11-09 09:41:13,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:41:13,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:41:13,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:41:13,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 09:41:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:41:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:41:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:41:13,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:41:14,795 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:41:14,795 INFO L299 CfgBuilder]: Removed 166 assume(true) statements. [2021-11-09 09:41:14,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:41:14 BoogieIcfgContainer [2021-11-09 09:41:14,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:41:14,800 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 09:41:14,800 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 09:41:14,804 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 09:41:14,805 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:41:14,806 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 09:41:12" (1/3) ... [2021-11-09 09:41:14,807 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cef62a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:41:14, skipping insertion in model container [2021-11-09 09:41:14,807 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:41:14,808 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:41:13" (2/3) ... [2021-11-09 09:41:14,808 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cef62a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:41:14, skipping insertion in model container [2021-11-09 09:41:14,808 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:41:14,809 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:41:14" (3/3) ... [2021-11-09 09:41:14,811 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2021-11-09 09:41:14,865 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 09:41:14,865 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 09:41:14,865 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 09:41:14,866 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 09:41:14,866 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 09:41:14,866 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 09:41:14,866 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 09:41:14,866 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 09:41:14,888 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.5137614678899083) internal successors, (165), 109 states have internal predecessors, (165), 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) [2021-11-09 09:41:14,920 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-11-09 09:41:14,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:41:14,921 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:41:14,931 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 09:41:14,931 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:41:14,932 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 09:41:14,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.5137614678899083) internal successors, (165), 109 states have internal predecessors, (165), 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) [2021-11-09 09:41:14,941 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-11-09 09:41:14,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:41:14,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:41:14,943 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 09:41:14,944 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:41:14,950 INFO L791 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 38#L-1true havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 7#L944true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 111#L952true main_#t~ret44 := valid_product_#res;main_~tmp~5 := main_#t~ret44;havoc main_#t~ret44; 98#L533true assume 0 != main_~tmp~5; 21#L507true havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 19#L163-1true [2021-11-09 09:41:14,951 INFO L793 eck$LassoCheckResult]: Loop: 19#L163-1true assume !false; 44#L392true assume test_~splverifierCounter~0 < 4; 18#L393true test_~tmp~4 := test_#t~nondet40;havoc test_#t~nondet40; 12#L401true assume !(0 != test_~tmp~4); 86#L401-1true test_~tmp___0~2 := test_#t~nondet41;havoc test_#t~nondet41; 51#L411true assume !(0 != test_~tmp___0~2); 31#L411-1true test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 28#L421true assume 0 != test_~tmp___2~0; 61#L427-1true assume !(0 != ~pumpRunning~0); 76#L194true assume !(0 != ~systemActive~0); 60#L201true havoc __utac_acc__Specification3_spec__1_#t~ret17, __utac_acc__Specification3_spec__1_#t~ret18, __utac_acc__Specification3_spec__1_#t~ret19, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 65#L100-1true __utac_acc__Specification3_spec__1_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret17;havoc __utac_acc__Specification3_spec__1_#t~ret17; 8#L157true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 19#L163-1true [2021-11-09 09:41:14,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:41:14,959 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-09 09:41:14,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:41:14,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047555789] [2021-11-09 09:41:14,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:41:14,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:41:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:41:15,347 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:41:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:41:15,563 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:41:15,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:41:15,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1671709762, now seen corresponding path program 1 times [2021-11-09 09:41:15,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:41:15,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542899051] [2021-11-09 09:41:15,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:41:15,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:41:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:41:15,588 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:41:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:41:15,615 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:41:15,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:41:15,617 INFO L85 PathProgramCache]: Analyzing trace with hash 42569176, now seen corresponding path program 1 times [2021-11-09 09:41:15,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:41:15,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498102449] [2021-11-09 09:41:15,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:41:15,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:41:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:41:15,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:41:15,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:41:15,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498102449] [2021-11-09 09:41:15,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498102449] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:41:15,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:41:15,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:41:15,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458253654] [2021-11-09 09:41:16,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:41:16,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:41:16,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:41:16,091 INFO L87 Difference]: Start difference. First operand has 110 states, 109 states have (on average 1.5137614678899083) internal successors, (165), 109 states have internal predecessors, (165), 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 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-11-09 09:41:16,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:41:16,411 INFO L93 Difference]: Finished difference Result 270 states and 381 transitions. [2021-11-09 09:41:16,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:41:16,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 270 states and 381 transitions. [2021-11-09 09:41:16,423 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 173 [2021-11-09 09:41:16,432 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 270 states to 249 states and 360 transitions. [2021-11-09 09:41:16,433 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 249 [2021-11-09 09:41:16,435 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 249 [2021-11-09 09:41:16,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 249 states and 360 transitions. [2021-11-09 09:41:16,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:41:16,439 INFO L681 BuchiCegarLoop]: Abstraction has 249 states and 360 transitions. [2021-11-09 09:41:16,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states and 360 transitions. [2021-11-09 09:41:16,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 150. [2021-11-09 09:41:16,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 150 states have (on average 1.44) internal successors, (216), 149 states have internal predecessors, (216), 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) [2021-11-09 09:41:16,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2021-11-09 09:41:16,493 INFO L704 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2021-11-09 09:41:16,495 INFO L587 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2021-11-09 09:41:16,495 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 09:41:16,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 216 transitions. [2021-11-09 09:41:16,498 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2021-11-09 09:41:16,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:41:16,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:41:16,502 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 09:41:16,505 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:41:16,505 INFO L791 eck$LassoCheckResult]: Stem: 499#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 455#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 405#L944 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 406#L952 main_#t~ret44 := valid_product_#res;main_~tmp~5 := main_#t~ret44;havoc main_#t~ret44; 500#L533 assume 0 != main_~tmp~5; 432#L507 havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 409#L163-1 [2021-11-09 09:41:16,506 INFO L793 eck$LassoCheckResult]: Loop: 409#L163-1 assume !false; 430#L392 assume test_~splverifierCounter~0 < 4; 429#L393 test_~tmp~4 := test_#t~nondet40;havoc test_#t~nondet40; 415#L401 assume !(0 != test_~tmp~4); 417#L401-1 test_~tmp___0~2 := test_#t~nondet41;havoc test_#t~nondet41; 473#L411 assume !(0 != test_~tmp___0~2); 445#L411-1 test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 440#L421 assume 0 != test_~tmp___2~0; 441#L427-1 assume !(0 != ~pumpRunning~0); 402#L194 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret21, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 467#L252 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret20, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 459#L226-1 assume !(0 != ~pumpRunning~0); 420#L201 havoc __utac_acc__Specification3_spec__1_#t~ret17, __utac_acc__Specification3_spec__1_#t~ret18, __utac_acc__Specification3_spec__1_#t~ret19, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 475#L100-1 __utac_acc__Specification3_spec__1_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret17;havoc __utac_acc__Specification3_spec__1_#t~ret17; 407#L157 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 409#L163-1 [2021-11-09 09:41:16,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:41:16,509 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-09 09:41:16,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:41:16,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346173207] [2021-11-09 09:41:16,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:41:16,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:41:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:41:16,596 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:41:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:41:16,704 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:41:16,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:41:16,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1950294320, now seen corresponding path program 1 times [2021-11-09 09:41:16,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:41:16,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113431962] [2021-11-09 09:41:16,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:41:16,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:41:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:41:16,712 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:41:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:41:16,721 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:41:16,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:41:16,722 INFO L85 PathProgramCache]: Analyzing trace with hash 104912074, now seen corresponding path program 1 times [2021-11-09 09:41:16,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:41:16,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478176882] [2021-11-09 09:41:16,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:41:16,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:41:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:41:16,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:41:16,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:41:16,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478176882] [2021-11-09 09:41:16,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478176882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:41:16,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:41:16,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:41:16,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424972245] [2021-11-09 09:41:16,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:41:16,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:41:16,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:41:16,948 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. cyclomatic complexity: 69 Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 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) [2021-11-09 09:41:17,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:41:17,171 INFO L93 Difference]: Finished difference Result 511 states and 749 transitions. [2021-11-09 09:41:17,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 09:41:17,173 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 511 states and 749 transitions. [2021-11-09 09:41:17,184 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 367 [2021-11-09 09:41:17,215 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 511 states to 511 states and 749 transitions. [2021-11-09 09:41:17,215 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 511 [2021-11-09 09:41:17,218 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 511 [2021-11-09 09:41:17,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 511 states and 749 transitions. [2021-11-09 09:41:17,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:41:17,227 INFO L681 BuchiCegarLoop]: Abstraction has 511 states and 749 transitions. [2021-11-09 09:41:17,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states and 749 transitions. [2021-11-09 09:41:17,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 294. [2021-11-09 09:41:17,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 294 states have (on average 1.4217687074829932) internal successors, (418), 293 states have internal predecessors, (418), 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) [2021-11-09 09:41:17,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 418 transitions. [2021-11-09 09:41:17,263 INFO L704 BuchiCegarLoop]: Abstraction has 294 states and 418 transitions. [2021-11-09 09:41:17,264 INFO L587 BuchiCegarLoop]: Abstraction has 294 states and 418 transitions. [2021-11-09 09:41:17,264 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-09 09:41:17,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 294 states and 418 transitions. [2021-11-09 09:41:17,267 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 208 [2021-11-09 09:41:17,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:41:17,267 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:41:17,268 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 09:41:17,268 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:41:17,269 INFO L791 eck$LassoCheckResult]: Stem: 1216#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1138#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 1084#L944 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1085#L952 main_#t~ret44 := valid_product_#res;main_~tmp~5 := main_#t~ret44;havoc main_#t~ret44; 1218#L533 assume 0 != main_~tmp~5; 1111#L507 havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1112#L163-1 [2021-11-09 09:41:17,269 INFO L793 eck$LassoCheckResult]: Loop: 1112#L163-1 assume !false; 1311#L392 assume test_~splverifierCounter~0 < 4; 1312#L393 test_~tmp~4 := test_#t~nondet40;havoc test_#t~nondet40; 1353#L401 assume !(0 != test_~tmp~4); 1351#L401-1 test_~tmp___0~2 := test_#t~nondet41;havoc test_#t~nondet41; 1350#L411 assume !(0 != test_~tmp___0~2); 1348#L411-1 test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 1343#L421 assume 0 != test_~tmp___2~0; 1183#L427-1 assume !(0 != ~pumpRunning~0); 1347#L194 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret21, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1320#L252 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret20, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 1142#L226-1 assume !(0 != ~pumpRunning~0); 1099#L201 havoc __utac_acc__Specification3_spec__1_#t~ret17, __utac_acc__Specification3_spec__1_#t~ret18, __utac_acc__Specification3_spec__1_#t~ret19, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1318#L100-1 __utac_acc__Specification3_spec__1_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret17;havoc __utac_acc__Specification3_spec__1_#t~ret17; 1317#L157 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1316#L132 __utac_acc__Specification3_spec__1_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret18;havoc __utac_acc__Specification3_spec__1_#t~ret18; 1313#L163 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1112#L163-1 [2021-11-09 09:41:17,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:41:17,270 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-11-09 09:41:17,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:41:17,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085459272] [2021-11-09 09:41:17,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:41:17,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:41:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:41:17,341 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:41:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:41:17,448 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:41:17,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:41:17,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1627108098, now seen corresponding path program 1 times [2021-11-09 09:41:17,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:41:17,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424685670] [2021-11-09 09:41:17,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:41:17,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:41:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:41:17,456 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:41:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:41:17,464 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:41:17,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:41:17,465 INFO L85 PathProgramCache]: Analyzing trace with hash 2036262940, now seen corresponding path program 1 times [2021-11-09 09:41:17,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:41:17,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596356174] [2021-11-09 09:41:17,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:41:17,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:41:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:41:17,502 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:41:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:41:17,553 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:42:33,952 WARN L207 SmtUtils]: Spent 1.27 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-09 09:43:54,725 WARN L207 SmtUtils]: Spent 39.28 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-09 09:43:54,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 09:43:54 BoogieIcfgContainer [2021-11-09 09:43:54,964 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 09:43:54,970 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:43:54,971 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:43:54,985 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:43:54,985 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:41:14" (3/4) ... [2021-11-09 09:43:54,989 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-09 09:43:55,080 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 09:43:55,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:43:55,082 INFO L168 Benchmark]: Toolchain (without parser) took 162351.07 ms. Allocated memory was 96.5 MB in the beginning and 174.1 MB in the end (delta: 77.6 MB). Free memory was 54.0 MB in the beginning and 96.2 MB in the end (delta: -42.2 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:43:55,082 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 96.5 MB. Free memory was 71.1 MB in the beginning and 71.0 MB in the end (delta: 53.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:43:55,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 733.28 ms. Allocated memory is still 96.5 MB. Free memory was 53.8 MB in the beginning and 62.7 MB in the end (delta: -8.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-09 09:43:55,084 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.14 ms. Allocated memory is still 96.5 MB. Free memory was 62.7 MB in the beginning and 59.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 09:43:55,085 INFO L168 Benchmark]: Boogie Preprocessor took 55.80 ms. Allocated memory is still 96.5 MB. Free memory was 59.1 MB in the beginning and 56.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:43:55,086 INFO L168 Benchmark]: RCFGBuilder took 1168.83 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 56.4 MB in the beginning and 81.5 MB in the end (delta: -25.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.1 GB. [2021-11-09 09:43:55,087 INFO L168 Benchmark]: BuchiAutomizer took 160164.40 ms. Allocated memory was 121.6 MB in the beginning and 174.1 MB in the end (delta: 52.4 MB). Free memory was 81.5 MB in the beginning and 98.1 MB in the end (delta: -16.6 MB). Peak memory consumption was 95.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:43:55,088 INFO L168 Benchmark]: Witness Printer took 109.71 ms. Allocated memory is still 174.1 MB. Free memory was 98.1 MB in the beginning and 96.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:43:55,094 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 96.5 MB. Free memory was 71.1 MB in the beginning and 71.0 MB in the end (delta: 53.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 733.28 ms. Allocated memory is still 96.5 MB. Free memory was 53.8 MB in the beginning and 62.7 MB in the end (delta: -8.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 102.14 ms. Allocated memory is still 96.5 MB. Free memory was 62.7 MB in the beginning and 59.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.80 ms. Allocated memory is still 96.5 MB. Free memory was 59.1 MB in the beginning and 56.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1168.83 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 56.4 MB in the beginning and 81.5 MB in the end (delta: -25.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 160164.40 ms. Allocated memory was 121.6 MB in the beginning and 174.1 MB in the end (delta: 52.4 MB). Free memory was 81.5 MB in the beginning and 98.1 MB in the end (delta: -16.6 MB). Peak memory consumption was 95.4 MB. Max. memory is 16.1 GB. * Witness Printer took 109.71 ms. Allocated memory is still 174.1 MB. Free memory was 98.1 MB in the beginning and 96.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 294 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 160.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 159.2s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 316 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 294 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 365 SDtfs, 1154 SDslu, 1360 SDs, 0 SdLazy, 121 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time 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: 391]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=969} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7afdec50=0, NULL=0, retValue_acc=0, NULL=0, NULL=995, NULL=0, NULL=969, retValue_acc=0, NULL=988, NULL=975, NULL=989, NULL=983, NULL=985, methaneLevelCritical=0, NULL=993, tmp=0, retValue_acc=1, NULL=0, tmp=0, NULL=0, NULL=0, NULL=981, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, tmp___0=1, NULL=974, NULL=970, tmp=0, cleanupTimeShifts=4, NULL=973, NULL=980, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51177abb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@727886ce=54, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@278288bb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e289090=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=992, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@975c236=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43cdc5a8=0, NULL=994, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46561878=0, retValue_acc=1, head=0, pumpRunning=0, \result=0, NULL=978, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@761a6c94=0, NULL=0, NULL=984, NULL=0, NULL=0, tmp=1, NULL=972, NULL=0, NULL=0, NULL=982, NULL=0, NULL=0, NULL=991, NULL=0, tmp___2=54, NULL=0, tmp___0=0, NULL=997, NULL=996, splverifierCounter=0, NULL=0, \result=0, NULL=986, NULL=990, NULL=976, tmp=0, tmp___1=0, head=0, NULL=0, NULL=0, NULL=979, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14a56c5c=0, NULL=987, NULL=977, NULL=971} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L187] int pumpRunning = 0; [L188] int systemActive = 1; [L448] int cleanupTimeShifts = 4; [L725] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L524] int retValue_acc ; [L525] int tmp ; [L948] int retValue_acc ; [L951] retValue_acc = 1 [L952] return (retValue_acc); [L531] tmp = valid_product() [L533] COND TRUE \read(tmp) [L382] int splverifierCounter ; [L383] int tmp ; [L384] int tmp___0 ; [L385] int tmp___1 ; [L386] int tmp___2 ; [L389] splverifierCounter = 0 Loop: [L391] COND TRUE 1 [L393] COND TRUE splverifierCounter < 4 [L399] tmp = __VERIFIER_nondet_int() [L401] COND FALSE !(\read(tmp)) [L409] tmp___0 = __VERIFIER_nondet_int() [L411] COND FALSE !(\read(tmp___0)) [L419] tmp___2 = __VERIFIER_nondet_int() [L421] COND TRUE \read(tmp___2) [L194] COND FALSE !(\read(pumpRunning)) [L201] COND TRUE \read(systemActive) [L249] int tmp ; [L252] COND FALSE !(\read(pumpRunning)) [L223] int tmp ; [L226] COND FALSE !(\read(pumpRunning)) [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L161] tmp___0 = getWaterLevel() [L163] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-09 09:43:55,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95bc2559-da89-48de-bb2f-378175413fe9/bin/uautomizer-IVEQpCNsaX/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)