./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_14c0c716-0a7e-451e-a814-f4386d1a8d3d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_14c0c716-0a7e-451e-a814-f4386d1a8d3d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_14c0c716-0a7e-451e-a814-f4386d1a8d3d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_14c0c716-0a7e-451e-a814-f4386d1a8d3d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_14c0c716-0a7e-451e-a814-f4386d1a8d3d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_14c0c716-0a7e-451e-a814-f4386d1a8d3d/bin/uautomizer --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 3236d89cedc127e9d85364eeaf0ba1493a1eae64 ............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:43,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:43,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:43,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:43,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:43,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:44,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:44,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:44,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:44,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:44,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:44,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:44,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:44,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:44,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:44,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:44,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:44,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:44,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:44,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:44,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:44,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:44,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:44,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:44,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:44,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:44,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:44,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:44,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:44,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:44,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:44,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:44,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:44,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:44,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:44,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:44,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:44,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:44,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:44,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:44,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:44,024 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_14c0c716-0a7e-451e-a814-f4386d1a8d3d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:58:44,036 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:44,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:44,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:44,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:44,038 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:44,038 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:58:44,038 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:58:44,038 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:58:44,038 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:58:44,039 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:58:44,039 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:58:44,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:44,039 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:44,039 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:44,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:44,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:44,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:44,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:58:44,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:58:44,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:58:44,040 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:44,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:44,041 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:58:44,041 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:44,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:58:44,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:44,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:44,042 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:58:44,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:44,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:44,043 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:58:44,043 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:58:44,043 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-vcloud-master/worker/working_dir_14c0c716-0a7e-451e-a814-f4386d1a8d3d/bin/uautomizer 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 -> 3236d89cedc127e9d85364eeaf0ba1493a1eae64 [2019-10-22 08:58:44,068 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:44,079 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:44,082 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:44,085 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:44,086 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:44,086 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_14c0c716-0a7e-451e-a814-f4386d1a8d3d/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2019-10-22 08:58:44,129 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_14c0c716-0a7e-451e-a814-f4386d1a8d3d/bin/uautomizer/data/1f1300a94/4336bfa745d74fbf984e1bd55c5d0750/FLAGdf8f0c74a [2019-10-22 08:58:44,528 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:44,529 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_14c0c716-0a7e-451e-a814-f4386d1a8d3d/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2019-10-22 08:58:44,539 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_14c0c716-0a7e-451e-a814-f4386d1a8d3d/bin/uautomizer/data/1f1300a94/4336bfa745d74fbf984e1bd55c5d0750/FLAGdf8f0c74a [2019-10-22 08:58:44,924 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_14c0c716-0a7e-451e-a814-f4386d1a8d3d/bin/uautomizer/data/1f1300a94/4336bfa745d74fbf984e1bd55c5d0750 [2019-10-22 08:58:44,928 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:44,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:44,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:44,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:44,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:44,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:44" (1/1) ... [2019-10-22 08:58:44,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d973d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:44, skipping insertion in model container [2019-10-22 08:58:44,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:44" (1/1) ... [2019-10-22 08:58:44,943 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:44,990 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:45,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:45,291 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:45,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:45,377 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:45,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:45 WrapperNode [2019-10-22 08:58:45,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:45,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:45,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:45,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:45,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:45" (1/1) ... [2019-10-22 08:58:45,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:45" (1/1) ... [2019-10-22 08:58:45,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:45,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:45,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:45,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:45,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:45" (1/1) ... [2019-10-22 08:58:45,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:45" (1/1) ... [2019-10-22 08:58:45,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:45" (1/1) ... [2019-10-22 08:58:45,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:45" (1/1) ... [2019-10-22 08:58:45,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:45" (1/1) ... [2019-10-22 08:58:45,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:45" (1/1) ... [2019-10-22 08:58:45,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:45" (1/1) ... [2019-10-22 08:58:45,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:45,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:45,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:45,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:45,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_14c0c716-0a7e-451e-a814-f4386d1a8d3d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:58:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:45,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:46,358 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:46,358 INFO L284 CfgBuilder]: Removed 282 assume(true) statements. [2019-10-22 08:58:46,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:46 BoogieIcfgContainer [2019-10-22 08:58:46,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:46,360 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:58:46,360 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:58:46,363 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:58:46,364 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:46,364 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:58:44" (1/3) ... [2019-10-22 08:58:46,365 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@af5588b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:58:46, skipping insertion in model container [2019-10-22 08:58:46,366 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:46,366 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:45" (2/3) ... [2019-10-22 08:58:46,366 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@af5588b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:58:46, skipping insertion in model container [2019-10-22 08:58:46,366 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:46,366 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:46" (3/3) ... [2019-10-22 08:58:46,368 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2019-10-22 08:58:46,406 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:58:46,406 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:58:46,407 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:58:46,407 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:46,407 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:46,407 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:58:46,407 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:46,407 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:58:46,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 188 states. [2019-10-22 08:58:46,450 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2019-10-22 08:58:46,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:46,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:46,458 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:46,458 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:46,458 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:58:46,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 188 states. [2019-10-22 08:58:46,465 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2019-10-22 08:58:46,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:46,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:46,466 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:46,466 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:46,471 INFO L791 eck$LassoCheckResult]: Stem: 125#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1); 19#L-1true havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 161#L762true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 168#L770true main_#t~ret64 := valid_product_#res;main_~tmp~10 := main_#t~ret64;havoc main_#t~ret64; 62#L893true assume 0 != main_~tmp~10; 106#L870true havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 162#L784-1true [2019-10-22 08:58:46,471 INFO L793 eck$LassoCheckResult]: Loop: 162#L784-1true assume !false; 181#L423true assume test_~splverifierCounter~0 < 4; 97#L424true test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 133#L432true assume !(0 != test_~tmp~3); 135#L432-1true test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 35#L442true assume !(0 != test_~tmp___0~0); 5#L442-1true test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 78#L452true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 90#L460-1true assume !(0 != ~pumpRunning~0); 128#L498true assume !(0 != ~systemActive~0); 39#L505true havoc __utac_acc__Specification1_spec__1_#t~ret62, __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_~tmp~9, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~9;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 55#L951-1true __utac_acc__Specification1_spec__1_#t~ret62 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~9 := __utac_acc__Specification1_spec__1_#t~ret62;havoc __utac_acc__Specification1_spec__1_#t~ret62; 159#L784true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~9); 162#L784-1true [2019-10-22 08:58:46,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:46,477 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 08:58:46,484 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:46,484 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837847766] [2019-10-22 08:58:46,484 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:46,485 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:46,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:47,194 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:47,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:47,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1666938228, now seen corresponding path program 1 times [2019-10-22 08:58:47,196 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:47,197 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97532802] [2019-10-22 08:58:47,197 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:47,197 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:47,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:47,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:47,253 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97532802] [2019-10-22 08:58:47,254 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:47,254 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:47,254 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807697696] [2019-10-22 08:58:47,259 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:58:47,260 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:47,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:47,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:47,275 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 3 states. [2019-10-22 08:58:47,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:47,358 INFO L93 Difference]: Finished difference Result 370 states and 552 transitions. [2019-10-22 08:58:47,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:47,360 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 370 states and 552 transitions. [2019-10-22 08:58:47,373 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 242 [2019-10-22 08:58:47,385 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 370 states to 356 states and 537 transitions. [2019-10-22 08:58:47,389 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 356 [2019-10-22 08:58:47,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 356 [2019-10-22 08:58:47,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 356 states and 537 transitions. [2019-10-22 08:58:47,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:58:47,392 INFO L688 BuchiCegarLoop]: Abstraction has 356 states and 537 transitions. [2019-10-22 08:58:47,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states and 537 transitions. [2019-10-22 08:58:47,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 354. [2019-10-22 08:58:47,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2019-10-22 08:58:47,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 534 transitions. [2019-10-22 08:58:47,447 INFO L711 BuchiCegarLoop]: Abstraction has 354 states and 534 transitions. [2019-10-22 08:58:47,447 INFO L591 BuchiCegarLoop]: Abstraction has 354 states and 534 transitions. [2019-10-22 08:58:47,447 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:58:47,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 354 states and 534 transitions. [2019-10-22 08:58:47,451 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 240 [2019-10-22 08:58:47,451 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:47,451 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:47,452 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:47,452 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:47,452 INFO L791 eck$LassoCheckResult]: Stem: 741#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1); 599#L-1 havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 600#L762 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 773#L770 main_#t~ret64 := valid_product_#res;main_~tmp~10 := main_#t~ret64;havoc main_#t~ret64; 662#L893 assume 0 != main_~tmp~10; 663#L870 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 679#L784-1 [2019-10-22 08:58:47,453 INFO L793 eck$LassoCheckResult]: Loop: 679#L784-1 assume !false; 774#L423 assume test_~splverifierCounter~0 < 4; 711#L424 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 712#L432 assume !(0 != test_~tmp~3); 661#L432-1 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 840#L442 assume !(0 != test_~tmp___0~0); 837#L442-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 835#L452 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 684#L460-1 assume !(0 != ~pumpRunning~0); 702#L498 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret41, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 669#L582 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret40, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 671#L556-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 627#L530-3 assume !(0 == ~pumpRunning~0); 614#L505 havoc __utac_acc__Specification1_spec__1_#t~ret62, __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_~tmp~9, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~9;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 633#L951-1 __utac_acc__Specification1_spec__1_#t~ret62 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~9 := __utac_acc__Specification1_spec__1_#t~ret62;havoc __utac_acc__Specification1_spec__1_#t~ret62; 771#L784 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~9); 679#L784-1 [2019-10-22 08:58:47,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:47,456 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 08:58:47,456 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:47,456 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007829767] [2019-10-22 08:58:47,456 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:47,457 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:47,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:47,869 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:47,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:47,869 INFO L82 PathProgramCache]: Analyzing trace with hash 558894454, now seen corresponding path program 1 times [2019-10-22 08:58:47,869 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:47,869 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349077966] [2019-10-22 08:58:47,870 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:47,870 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:47,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:47,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:47,881 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349077966] [2019-10-22 08:58:47,881 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:47,881 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:47,882 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327967514] [2019-10-22 08:58:47,882 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:58:47,882 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:47,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:47,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:47,883 INFO L87 Difference]: Start difference. First operand 354 states and 534 transitions. cyclomatic complexity: 183 Second operand 3 states. [2019-10-22 08:58:48,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:48,007 INFO L93 Difference]: Finished difference Result 365 states and 514 transitions. [2019-10-22 08:58:48,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:48,008 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 365 states and 514 transitions. [2019-10-22 08:58:48,011 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2019-10-22 08:58:48,017 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 365 states to 365 states and 514 transitions. [2019-10-22 08:58:48,017 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 365 [2019-10-22 08:58:48,018 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 365 [2019-10-22 08:58:48,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 365 states and 514 transitions. [2019-10-22 08:58:48,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:58:48,020 INFO L688 BuchiCegarLoop]: Abstraction has 365 states and 514 transitions. [2019-10-22 08:58:48,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states and 514 transitions. [2019-10-22 08:58:48,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2019-10-22 08:58:48,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2019-10-22 08:58:48,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 514 transitions. [2019-10-22 08:58:48,046 INFO L711 BuchiCegarLoop]: Abstraction has 365 states and 514 transitions. [2019-10-22 08:58:48,046 INFO L591 BuchiCegarLoop]: Abstraction has 365 states and 514 transitions. [2019-10-22 08:58:48,046 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:58:48,047 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 365 states and 514 transitions. [2019-10-22 08:58:48,048 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2019-10-22 08:58:48,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:48,049 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:48,051 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:48,051 INFO L850 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] [2019-10-22 08:58:48,051 INFO L791 eck$LassoCheckResult]: Stem: 1433#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1); 1315#L-1 havoc main_#res;havoc main_#t~ret64, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 1316#L762 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1455#L770 main_#t~ret64 := valid_product_#res;main_~tmp~10 := main_#t~ret64;havoc main_#t~ret64; 1366#L893 assume 0 != main_~tmp~10; 1367#L870 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1414#L784-1 [2019-10-22 08:58:48,051 INFO L793 eck$LassoCheckResult]: Loop: 1414#L784-1 assume !false; 1539#L423 assume test_~splverifierCounter~0 < 4; 1538#L424 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 1440#L432 assume !(0 != test_~tmp~3); 1364#L432-1 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 1333#L442 assume !(0 != test_~tmp___0~0); 1292#L442-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 1293#L452 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1383#L460-1 assume !(0 != ~pumpRunning~0); 1435#L498 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret41, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1370#L582 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret40, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 1371#L556-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1427#L530-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1531#L991-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1530#L996-3 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 1299#L684-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1300#L684-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1305#L690-3 processEnvironment__wrappee__highWaterSensor_#t~ret39 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret39;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39; 1506#L534-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 1339#L505 havoc __utac_acc__Specification1_spec__1_#t~ret62, __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_~tmp~9, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~9;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 1340#L951-1 __utac_acc__Specification1_spec__1_#t~ret62 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~9 := __utac_acc__Specification1_spec__1_#t~ret62;havoc __utac_acc__Specification1_spec__1_#t~ret62; 1358#L784 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~9); 1414#L784-1 [2019-10-22 08:58:48,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:48,052 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 08:58:48,052 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:48,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418069356] [2019-10-22 08:58:48,052 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:48,053 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:48,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:48,306 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:48,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:48,308 INFO L82 PathProgramCache]: Analyzing trace with hash 222495874, now seen corresponding path program 1 times [2019-10-22 08:58:48,308 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:48,308 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100691974] [2019-10-22 08:58:48,308 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:48,308 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:48,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:48,319 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:48,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:48,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1475801000, now seen corresponding path program 1 times [2019-10-22 08:58:48,324 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:48,324 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652987044] [2019-10-22 08:58:48,324 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:48,325 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:48,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:48,554 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:48,670 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-10-22 08:59:02,860 WARN L191 SmtUtils]: Spent 14.12 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 08:59:12,106 WARN L191 SmtUtils]: Spent 9.24 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 08:59:12,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:59:12 BoogieIcfgContainer [2019-10-22 08:59:12,185 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:59:12,186 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:12,186 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:12,186 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:12,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:46" (3/4) ... [2019-10-22 08:59:12,190 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:59:12,256 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_14c0c716-0a7e-451e-a814-f4386d1a8d3d/bin/uautomizer/witness.graphml [2019-10-22 08:59:12,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:12,257 INFO L168 Benchmark]: Toolchain (without parser) took 27328.39 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 229.1 MB). Free memory was 936.9 MB in the beginning and 1.1 GB in the end (delta: -127.7 MB). Peak memory consumption was 101.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:12,258 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:12,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 447.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:12,259 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:12,259 INFO L168 Benchmark]: Boogie Preprocessor took 80.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:12,259 INFO L168 Benchmark]: RCFGBuilder took 806.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.5 MB). Peak memory consumption was 80.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:12,260 INFO L168 Benchmark]: BuchiAutomizer took 25824.71 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 92.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -36.5 MB). Peak memory consumption was 285.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:12,260 INFO L168 Benchmark]: Witness Printer took 70.78 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:12,262 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 447.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 93.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 806.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.5 MB). Peak memory consumption was 80.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 25824.71 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 92.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -36.5 MB). Peak memory consumption was 285.8 MB. Max. memory is 11.5 GB. * Witness Printer took 70.78 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 11.5 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 3 locations. The remainder module has 365 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 25.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 25.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 365 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 480 SDtfs, 411 SDslu, 344 SDs, 0 SdLazy, 53 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 422]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=-16, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4badbad4=0, retValue_acc=0, NULL=-11, NULL=-2, methaneLevelCritical=0, tmp___0=0, retValue_acc=0, tmp=0, NULL=0, NULL=0, NULL=-8, tmp___1=0, NULL=-19, tmp=0, NULL=-12, NULL=-24, NULL=-18, tmp=0, cleanupTimeShifts=4, NULL=-13, tmp___0=0, retValue_acc=0, NULL=-5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@de44fde=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dca9e9a=51, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f3bedce=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a201538=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d5e44e4=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61e6f93a=0, NULL=0, systemActive=1, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@140d67ef=0, NULL=0, NULL=0, NULL=-1, \result=0, NULL=-17, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=-25, head=0, pumpRunning=0, \result=0, NULL=-6, NULL=-20, NULL=-9, NULL=0, NULL=-7, NULL=0, NULL=0, \result=1, NULL=-14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@662d331a=0, NULL=-15, tmp=0, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6742e62=0, NULL=0, tmp=1, retValue_acc=1, tmp___2=51, NULL=-23, splverifierCounter=0, \result=0, NULL=-10, head=0, NULL=0, NULL=-21, tmp=0, NULL=-3, NULL=0, NULL=-22, NULL=0, NULL=0, NULL=-4, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53266ed7=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L490] int pumpRunning = 0; [L491] int systemActive = 1; [L811] int cleanupTimeShifts = 4; [L908] int waterLevel = 1; [L909] int methaneLevelCritical = 0; [L884] int retValue_acc ; [L885] int tmp ; [L766] int retValue_acc ; [L769] retValue_acc = 1 [L770] return (retValue_acc); [L891] tmp = valid_product() [L893] COND TRUE \read(tmp) [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 Loop: [L422] COND TRUE 1 [L424] COND TRUE splverifierCounter < 4 [L430] tmp = __VERIFIER_nondet_int() [L432] COND FALSE !(\read(tmp)) [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp___0)) [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) [L732] systemActive = 1 [L498] COND FALSE !(\read(pumpRunning)) [L505] COND TRUE \read(systemActive) [L579] int tmp ; [L582] COND FALSE !(\read(pumpRunning)) [L553] int tmp ; [L556] COND FALSE !(\read(pumpRunning)) [L527] int tmp ; [L530] COND TRUE ! pumpRunning [L676] int retValue_acc ; [L677] int tmp ; [L678] int tmp___0 ; [L988] int retValue_acc ; [L991] COND TRUE waterLevel < 2 [L992] retValue_acc = 1 [L993] return (retValue_acc); [L682] tmp = isHighWaterSensorDry() [L684] COND TRUE \read(tmp) [L685] tmp___0 = 0 [L689] retValue_acc = tmp___0 [L690] return (retValue_acc); [L532] tmp = isHighWaterLevel() [L534] COND FALSE !(\read(tmp)) [L777] int tmp ; [L778] int tmp___0 ; [L947] int retValue_acc ; [L950] retValue_acc = methaneLevelCritical [L951] return (retValue_acc); [L782] tmp = isMethaneLevelCritical() [L784] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...