./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product26.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_c07eb6cb-c01b-4bc1-a2f0-cba91e4c28c1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c07eb6cb-c01b-4bc1-a2f0-cba91e4c28c1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c07eb6cb-c01b-4bc1-a2f0-cba91e4c28c1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c07eb6cb-c01b-4bc1-a2f0-cba91e4c28c1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c07eb6cb-c01b-4bc1-a2f0-cba91e4c28c1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c07eb6cb-c01b-4bc1-a2f0-cba91e4c28c1/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 c4608a8062f27af1fb75c6b614ba3695c40f562a ........................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 08:59:00,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:59:00,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:59:00,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:59:00,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:59:00,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:59:00,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:59:00,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:59:00,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:59:01,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:59:01,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:59:01,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:59:01,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:59:01,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:59:01,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:59:01,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:59:01,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:59:01,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:59:01,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:59:01,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:59:01,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:59:01,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:59:01,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:59:01,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:59:01,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:59:01,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:59:01,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:59:01,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:59:01,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:59:01,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:59:01,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:59:01,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:59:01,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:59:01,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:59:01,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:59:01,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:59:01,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:59:01,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:59:01,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:59:01,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:59:01,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:59:01,044 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c07eb6cb-c01b-4bc1-a2f0-cba91e4c28c1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:59:01,057 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:59:01,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:59:01,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:59:01,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:59:01,067 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:59:01,067 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:59:01,068 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:59:01,068 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:59:01,068 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:59:01,068 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:59:01,068 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:59:01,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:59:01,069 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:59:01,069 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:59:01,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:59:01,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:59:01,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:59:01,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:59:01,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:59:01,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:59:01,070 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:59:01,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:59:01,070 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:59:01,070 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:59:01,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:59:01,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:59:01,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:59:01,071 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:59:01,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:59:01,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:59:01,072 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:59:01,073 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:59:01,073 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_c07eb6cb-c01b-4bc1-a2f0-cba91e4c28c1/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 -> c4608a8062f27af1fb75c6b614ba3695c40f562a [2019-10-22 08:59:01,108 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:59:01,118 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:59:01,121 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:59:01,122 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:59:01,123 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:59:01,123 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c07eb6cb-c01b-4bc1-a2f0-cba91e4c28c1/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c [2019-10-22 08:59:01,175 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c07eb6cb-c01b-4bc1-a2f0-cba91e4c28c1/bin/uautomizer/data/8669ed674/dd1de74febd9497fa392ea0e77b37bf7/FLAG02a33808a [2019-10-22 08:59:01,619 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:59:01,619 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c07eb6cb-c01b-4bc1-a2f0-cba91e4c28c1/sv-benchmarks/c/product-lines/minepump_spec3_product26.cil.c [2019-10-22 08:59:01,635 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c07eb6cb-c01b-4bc1-a2f0-cba91e4c28c1/bin/uautomizer/data/8669ed674/dd1de74febd9497fa392ea0e77b37bf7/FLAG02a33808a [2019-10-22 08:59:02,142 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c07eb6cb-c01b-4bc1-a2f0-cba91e4c28c1/bin/uautomizer/data/8669ed674/dd1de74febd9497fa392ea0e77b37bf7 [2019-10-22 08:59:02,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:59:02,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:59:02,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:02,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:59:02,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:59:02,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:02" (1/1) ... [2019-10-22 08:59:02,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544e8593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:02, skipping insertion in model container [2019-10-22 08:59:02,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:02" (1/1) ... [2019-10-22 08:59:02,160 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:59:02,212 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:59:02,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:02,651 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:59:02,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:02,755 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:59:02,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:02 WrapperNode [2019-10-22 08:59:02,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:02,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:02,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:59:02,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:59:02,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:02" (1/1) ... [2019-10-22 08:59:02,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:02" (1/1) ... [2019-10-22 08:59:02,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:02,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:59:02,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:59:02,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:59:02,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:02" (1/1) ... [2019-10-22 08:59:02,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:02" (1/1) ... [2019-10-22 08:59:02,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:02" (1/1) ... [2019-10-22 08:59:02,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:02" (1/1) ... [2019-10-22 08:59:02,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:02" (1/1) ... [2019-10-22 08:59:02,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:02" (1/1) ... [2019-10-22 08:59:02,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:02" (1/1) ... [2019-10-22 08:59:02,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:59:02,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:59:02,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:59:02,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:59:02,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c07eb6cb-c01b-4bc1-a2f0-cba91e4c28c1/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 08:59:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:59:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:59:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:59:02,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:59:03,502 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:59:03,502 INFO L284 CfgBuilder]: Removed 104 assume(true) statements. [2019-10-22 08:59:03,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:03 BoogieIcfgContainer [2019-10-22 08:59:03,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:59:03,504 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:59:03,504 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:59:03,508 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:59:03,509 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:03,509 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:59:02" (1/3) ... [2019-10-22 08:59:03,510 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f769827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:59:03, skipping insertion in model container [2019-10-22 08:59:03,510 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:03,511 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:02" (2/3) ... [2019-10-22 08:59:03,511 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f769827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:59:03, skipping insertion in model container [2019-10-22 08:59:03,511 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:03,511 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:03" (3/3) ... [2019-10-22 08:59:03,513 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product26.cil.c [2019-10-22 08:59:03,559 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:59:03,559 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:59:03,559 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:59:03,559 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:59:03,559 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:59:03,559 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:59:03,559 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:59:03,560 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:59:03,575 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2019-10-22 08:59:03,600 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-10-22 08:59:03,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:03,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:03,609 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:59:03,609 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:03,610 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:59:03,610 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2019-10-22 08:59:03,614 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-10-22 08:59:03,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:03,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:03,615 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:59:03,615 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:03,620 INFO L791 eck$LassoCheckResult]: Stem: 29#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(13);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);~head~0.base, ~head~0.offset := 0, 0;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(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1); 10#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 39#L166true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 78#L174true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 71#L130true assume 0 != main_~tmp~0; 23#L103true havoc test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 76#L913-1true [2019-10-22 08:59:03,621 INFO L793 eck$LassoCheckResult]: Loop: 76#L913-1true assume !false; 43#L842true assume test_~splverifierCounter~0 < 4; 63#L843true test_~tmp~7 := test_#t~nondet67;havoc test_#t~nondet67; 65#L851true assume !(0 != test_~tmp~7); 69#L851-1true test_~tmp___0~1 := test_#t~nondet68;havoc test_#t~nondet68; 49#L861true assume !(0 != test_~tmp___0~1); 52#L861-1true test_~tmp___2~0 := test_#t~nondet69;havoc test_#t~nondet69; 34#L871true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 40#L879-2true assume !(0 != ~pumpRunning~0); 44#L660true assume !(0 != ~systemActive~0); 56#L667true havoc __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 36#L227true __utac_acc__Specification3_spec__1_#t~ret71 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 26#L907true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 76#L913-1true [2019-10-22 08:59:03,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:03,627 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 08:59:03,636 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:03,636 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763980069] [2019-10-22 08:59:03,636 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:03,636 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:03,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:04,559 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:04,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:04,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1680729482, now seen corresponding path program 1 times [2019-10-22 08:59:04,560 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:04,561 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291199574] [2019-10-22 08:59:04,561 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:04,561 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:04,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:04,621 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 08:59:04,622 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291199574] [2019-10-22 08:59:04,622 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:04,622 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:59:04,623 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315970134] [2019-10-22 08:59:04,628 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:59:04,630 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:04,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:59:04,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:59:04,646 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 3 states. [2019-10-22 08:59:04,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:04,693 INFO L93 Difference]: Finished difference Result 78 states and 107 transitions. [2019-10-22 08:59:04,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:59:04,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 107 transitions. [2019-10-22 08:59:04,699 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-10-22 08:59:04,704 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 71 states and 99 transitions. [2019-10-22 08:59:04,705 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2019-10-22 08:59:04,705 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2019-10-22 08:59:04,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 99 transitions. [2019-10-22 08:59:04,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:59:04,707 INFO L688 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2019-10-22 08:59:04,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 99 transitions. [2019-10-22 08:59:04,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-10-22 08:59:04,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-10-22 08:59:04,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2019-10-22 08:59:04,737 INFO L711 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2019-10-22 08:59:04,738 INFO L591 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2019-10-22 08:59:04,738 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:59:04,738 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 99 transitions. [2019-10-22 08:59:04,740 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-10-22 08:59:04,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:04,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:04,740 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:59:04,741 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:04,741 INFO L791 eck$LassoCheckResult]: Stem: 203#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(13);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);~head~0.base, ~head~0.offset := 0, 0;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(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1); 173#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 174#L166 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 217#L174 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 234#L130 assume 0 != main_~tmp~0; 195#L103 havoc test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 170#L913-1 [2019-10-22 08:59:04,742 INFO L793 eck$LassoCheckResult]: Loop: 170#L913-1 assume !false; 220#L842 assume test_~splverifierCounter~0 < 4; 221#L843 test_~tmp~7 := test_#t~nondet67;havoc test_#t~nondet67; 231#L851 assume !(0 != test_~tmp~7); 223#L851-1 test_~tmp___0~1 := test_#t~nondet68;havoc test_#t~nondet68; 224#L861 assume !(0 != test_~tmp___0~1); 225#L861-1 test_~tmp___2~0 := test_#t~nondet69;havoc test_#t~nondet69; 211#L871 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 212#L879-2 assume !(0 != ~pumpRunning~0); 172#L660 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 200#L692 assume !(0 != ~pumpRunning~0); 202#L667 havoc __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 215#L227 __utac_acc__Specification3_spec__1_#t~ret71 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 198#L907 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 170#L913-1 [2019-10-22 08:59:04,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:04,742 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 08:59:04,742 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:04,742 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055463416] [2019-10-22 08:59:04,743 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:04,743 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:04,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:05,188 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:05,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:05,193 INFO L82 PathProgramCache]: Analyzing trace with hash -589998930, now seen corresponding path program 1 times [2019-10-22 08:59:05,193 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:05,193 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55476324] [2019-10-22 08:59:05,193 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:05,194 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:05,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:05,208 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:05,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:05,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1013040596, now seen corresponding path program 1 times [2019-10-22 08:59:05,211 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:05,211 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171822817] [2019-10-22 08:59:05,211 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:05,213 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:05,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:05,299 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 08:59:05,299 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171822817] [2019-10-22 08:59:05,299 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:05,299 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:59:05,300 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490150388] [2019-10-22 08:59:05,432 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:05,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:59:05,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:59:05,433 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. cyclomatic complexity: 30 Second operand 5 states. [2019-10-22 08:59:05,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:05,591 INFO L93 Difference]: Finished difference Result 241 states and 345 transitions. [2019-10-22 08:59:05,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:59:05,593 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 241 states and 345 transitions. [2019-10-22 08:59:05,597 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2019-10-22 08:59:05,603 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 241 states to 241 states and 345 transitions. [2019-10-22 08:59:05,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 241 [2019-10-22 08:59:05,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 241 [2019-10-22 08:59:05,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 241 states and 345 transitions. [2019-10-22 08:59:05,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:59:05,609 INFO L688 BuchiCegarLoop]: Abstraction has 241 states and 345 transitions. [2019-10-22 08:59:05,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states and 345 transitions. [2019-10-22 08:59:05,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 136. [2019-10-22 08:59:05,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-22 08:59:05,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 188 transitions. [2019-10-22 08:59:05,623 INFO L711 BuchiCegarLoop]: Abstraction has 136 states and 188 transitions. [2019-10-22 08:59:05,623 INFO L591 BuchiCegarLoop]: Abstraction has 136 states and 188 transitions. [2019-10-22 08:59:05,623 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:59:05,624 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states and 188 transitions. [2019-10-22 08:59:05,630 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2019-10-22 08:59:05,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:05,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:05,632 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:59:05,632 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 08:59:05,632 INFO L791 eck$LassoCheckResult]: Stem: 533#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(13);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);~head~0.base, ~head~0.offset := 0, 0;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(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1); 503#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 504#L166 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 550#L174 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 583#L130 assume 0 != main_~tmp~0; 521#L103 havoc test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 522#L913-1 [2019-10-22 08:59:05,632 INFO L793 eck$LassoCheckResult]: Loop: 522#L913-1 assume !false; 616#L842 assume test_~splverifierCounter~0 < 4; 617#L843 test_~tmp~7 := test_#t~nondet67;havoc test_#t~nondet67; 630#L851 assume !(0 != test_~tmp~7); 628#L851-1 test_~tmp___0~1 := test_#t~nondet68;havoc test_#t~nondet68; 561#L861 assume !(0 != test_~tmp___0~1); 562#L861-1 test_~tmp___2~0 := test_#t~nondet69;havoc test_#t~nondet69; 567#L871 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 622#L879-2 assume !(0 != ~pumpRunning~0); 621#L660 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 620#L692 assume !(0 != ~pumpRunning~0); 618#L667 havoc __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 546#L227 __utac_acc__Specification3_spec__1_#t~ret71 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 547#L907 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 517#L259 __utac_acc__Specification3_spec__1_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret72;havoc __utac_acc__Specification3_spec__1_#t~ret72; 518#L913 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 522#L913-1 [2019-10-22 08:59:05,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:05,633 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 08:59:05,633 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:05,634 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585228901] [2019-10-22 08:59:05,634 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:05,634 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:05,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:06,035 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:06,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:06,036 INFO L82 PathProgramCache]: Analyzing trace with hash -53282720, now seen corresponding path program 1 times [2019-10-22 08:59:06,036 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:06,036 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666943351] [2019-10-22 08:59:06,036 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:06,037 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:06,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:06,047 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:06,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:06,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1425557498, now seen corresponding path program 1 times [2019-10-22 08:59:06,054 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:06,055 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872145272] [2019-10-22 08:59:06,055 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:06,055 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:06,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:06,397 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:25,775 WARN L191 SmtUtils]: Spent 19.26 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 08:59:37,277 WARN L191 SmtUtils]: Spent 11.50 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 08:59:37,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:59:37 BoogieIcfgContainer [2019-10-22 08:59:37,350 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:59:37,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:37,352 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:37,353 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:37,353 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:03" (3/4) ... [2019-10-22 08:59:37,356 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:59:37,401 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c07eb6cb-c01b-4bc1-a2f0-cba91e4c28c1/bin/uautomizer/witness.graphml [2019-10-22 08:59:37,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:37,405 INFO L168 Benchmark]: Toolchain (without parser) took 35259.93 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 316.7 MB). Free memory was 944.4 MB in the beginning and 1.3 GB in the end (delta: -356.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:37,405 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:37,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 610.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -146.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:37,406 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:37,407 INFO L168 Benchmark]: Boogie Preprocessor took 32.94 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:37,407 INFO L168 Benchmark]: RCFGBuilder took 658.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.6 MB). Peak memory consumption was 65.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:37,407 INFO L168 Benchmark]: BuchiAutomizer took 33846.71 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 212.3 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -292.4 MB). Peak memory consumption was 408.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:37,408 INFO L168 Benchmark]: Witness Printer took 49.94 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:37,412 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 610.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -146.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.94 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 658.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.6 MB). Peak memory consumption was 65.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 33846.71 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 212.3 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -292.4 MB). Peak memory consumption was 408.3 MB. Max. memory is 11.5 GB. * Witness Printer took 49.94 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 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 5 locations. The remainder module has 136 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 33.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 33.3s. Construction of modules took 0.0s. 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, 105 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 136 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 239 SDtfs, 466 SDslu, 400 SDs, 0 SdLazy, 46 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 841]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=19378} State at position 1 is {NULL=0, NULL=-3, NULL=0, retValue_acc=0, NULL=19378, NULL=0, NULL=0, NULL=0, NULL=-22, NULL=0, NULL=-13, NULL=0, NULL=0, NULL=-20, methaneLevelCritical=0, NULL=0, NULL=9653, NULL=-16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dc043e5=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59bb54e5=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1515ef83=0, NULL=-23, cleanupTimeShifts=4, NULL=-24, NULL=-14, NULL=-5, NULL=-8, tmp=0, tmp___0=1, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32448e52=0, NULL=-11, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp=1, NULL=-6, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4554c9ed=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a7d4d79=50, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c127d19=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5741c077=0, NULL=0, NULL=0, NULL=-15, NULL=-4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5220673=0, NULL=-19, retValue_acc=1, tmp___2=50, retValue_acc=1, NULL=-25, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=-17, NULL=-7, tmp___1=0, head=0, tmp=0, NULL=-18, NULL=0, NULL=-21, NULL=0, NULL=-9, NULL=19377, NULL=0, NULL=-12, NULL=-10} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L184] int waterLevel = 1; [L185] int methaneLevelCritical = 0; [L442] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int pumpRunning = 0; [L653] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L832] int splverifierCounter ; [L833] int tmp ; [L834] int tmp___0 ; [L835] int tmp___1 ; [L836] int tmp___2 ; [L839] splverifierCounter = 0 Loop: [L841] COND TRUE 1 [L843] COND TRUE splverifierCounter < 4 [L849] tmp = __VERIFIER_nondet_int() [L851] COND FALSE !(\read(tmp)) [L859] tmp___0 = __VERIFIER_nondet_int() [L861] COND FALSE !(\read(tmp___0)) [L869] tmp___2 = __VERIFIER_nondet_int() [L871] COND TRUE \read(tmp___2) [L826] systemActive = 1 [L660] COND FALSE !(\read(pumpRunning)) [L667] COND TRUE \read(systemActive) [L689] int tmp ; [L692] COND FALSE !(\read(pumpRunning)) [L899] int tmp ; [L900] int tmp___0 ; [L901] int tmp___1 ; [L223] int retValue_acc ; [L226] retValue_acc = methaneLevelCritical [L227] return (retValue_acc); [L905] tmp = isMethaneLevelCritical() [L907] COND FALSE !(\read(tmp)) [L255] int retValue_acc ; [L258] retValue_acc = waterLevel [L259] return (retValue_acc); [L911] tmp___0 = getWaterLevel() [L913] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...