./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product60.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_71c54df6-ab2e-4e2a-8a04-08f7053b52fd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_71c54df6-ab2e-4e2a-8a04-08f7053b52fd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_71c54df6-ab2e-4e2a-8a04-08f7053b52fd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_71c54df6-ab2e-4e2a-8a04-08f7053b52fd/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product60.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_71c54df6-ab2e-4e2a-8a04-08f7053b52fd/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_71c54df6-ab2e-4e2a-8a04-08f7053b52fd/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 21b7318e0534e2795ffc81aa5194a01e66c6f479 .......................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:55:42,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:42,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:42,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:42,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:42,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:42,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:42,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:42,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:42,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:42,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:42,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:42,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:42,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:42,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:42,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:42,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:42,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:42,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:42,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:42,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:42,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:42,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:42,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:42,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:42,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:42,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:42,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:42,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:42,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:42,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:42,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:42,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:42,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:42,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:42,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:42,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:42,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:42,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:42,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:42,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:42,058 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_71c54df6-ab2e-4e2a-8a04-08f7053b52fd/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:55:42,075 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:42,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:42,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:42,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:42,078 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:42,078 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:55:42,078 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:55:42,078 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:55:42,078 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:55:42,078 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:55:42,079 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:55:42,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:42,079 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:42,079 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:55:42,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:42,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:42,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:42,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:55:42,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:55:42,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:55:42,080 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:42,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:42,080 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:55:42,080 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:42,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:55:42,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:42,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:42,081 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:55:42,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:42,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:42,082 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:55:42,082 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:55:42,082 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_71c54df6-ab2e-4e2a-8a04-08f7053b52fd/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 -> 21b7318e0534e2795ffc81aa5194a01e66c6f479 [2019-10-22 08:55:42,106 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:42,117 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:42,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:42,124 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:42,124 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:42,125 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_71c54df6-ab2e-4e2a-8a04-08f7053b52fd/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product60.cil.c [2019-10-22 08:55:42,187 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71c54df6-ab2e-4e2a-8a04-08f7053b52fd/bin/uautomizer/data/34e1d6290/838541b63fb748758dd8a01e6222151c/FLAG7b92bd188 [2019-10-22 08:55:42,622 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:42,623 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_71c54df6-ab2e-4e2a-8a04-08f7053b52fd/sv-benchmarks/c/product-lines/minepump_spec1_product60.cil.c [2019-10-22 08:55:42,634 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71c54df6-ab2e-4e2a-8a04-08f7053b52fd/bin/uautomizer/data/34e1d6290/838541b63fb748758dd8a01e6222151c/FLAG7b92bd188 [2019-10-22 08:55:43,145 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_71c54df6-ab2e-4e2a-8a04-08f7053b52fd/bin/uautomizer/data/34e1d6290/838541b63fb748758dd8a01e6222151c [2019-10-22 08:55:43,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:43,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:43,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:43,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:43,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:43,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:43" (1/1) ... [2019-10-22 08:55:43,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6072a6c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:43, skipping insertion in model container [2019-10-22 08:55:43,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:43" (1/1) ... [2019-10-22 08:55:43,162 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:43,206 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:43,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:43,613 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:43,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:43,726 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:43,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:43 WrapperNode [2019-10-22 08:55:43,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:43,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:43,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:43,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:43,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:43" (1/1) ... [2019-10-22 08:55:43,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:43" (1/1) ... [2019-10-22 08:55:43,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:43,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:43,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:43,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:43,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:43" (1/1) ... [2019-10-22 08:55:43,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:43" (1/1) ... [2019-10-22 08:55:43,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:43" (1/1) ... [2019-10-22 08:55:43,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:43" (1/1) ... [2019-10-22 08:55:43,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:43" (1/1) ... [2019-10-22 08:55:43,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:43" (1/1) ... [2019-10-22 08:55:43,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:43" (1/1) ... [2019-10-22 08:55:43,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:43,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:43,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:43,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:43,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71c54df6-ab2e-4e2a-8a04-08f7053b52fd/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 08:55:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:55:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:55:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:44,793 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:44,793 INFO L284 CfgBuilder]: Removed 198 assume(true) statements. [2019-10-22 08:55:44,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:44 BoogieIcfgContainer [2019-10-22 08:55:44,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:44,795 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:55:44,795 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:55:44,799 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:55:44,800 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:44,800 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:55:43" (1/3) ... [2019-10-22 08:55:44,801 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4db20ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:55:44, skipping insertion in model container [2019-10-22 08:55:44,802 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:44,802 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:43" (2/3) ... [2019-10-22 08:55:44,803 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4db20ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:55:44, skipping insertion in model container [2019-10-22 08:55:44,803 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:44,803 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:44" (3/3) ... [2019-10-22 08:55:44,804 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product60.cil.c [2019-10-22 08:55:44,856 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:55:44,857 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:55:44,857 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:55:44,857 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:44,857 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:44,857 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:55:44,858 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:44,858 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:55:44,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states. [2019-10-22 08:55:44,911 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-10-22 08:55:44,912 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:44,913 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:44,920 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:44,921 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:44,921 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:55:44,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states. [2019-10-22 08:55:44,926 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-10-22 08:55:44,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:44,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:44,931 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:44,932 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:44,937 INFO L791 eck$LassoCheckResult]: Stem: 114#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1); 7#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; 41#L989true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 68#L997true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 66#L130true assume 0 != main_~tmp~0; 19#L103true havoc test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 4#L263-1true [2019-10-22 08:55:44,942 INFO L793 eck$LassoCheckResult]: Loop: 4#L263-1true assume !false; 84#L669true assume test_~splverifierCounter~0 < 4; 28#L670true test_~tmp~5 := test_#t~nondet48;havoc test_#t~nondet48; 43#L678true assume !(0 != test_~tmp~5); 45#L678-1true test_~tmp___0~1 := test_#t~nondet49;havoc test_#t~nondet49; 122#L688true assume !(0 != test_~tmp___0~1); 125#L688-1true test_~tmp___2~0 := test_#t~nondet50;havoc test_#t~nondet50; 11#L698true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 20#L706-1true assume !(0 != ~pumpRunning~0); 37#L736true assume !(0 != ~systemActive~0); 118#L743true havoc __utac_acc__Specification1_spec__1_#t~ret11, __utac_acc__Specification1_spec__1_#t~ret12, __utac_acc__Specification1_spec__1_~tmp~1, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 78#L193-2true __utac_acc__Specification1_spec__1_#t~ret11 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~1 := __utac_acc__Specification1_spec__1_#t~ret11;havoc __utac_acc__Specification1_spec__1_#t~ret11; 5#L263true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1); 4#L263-1true [2019-10-22 08:55:44,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:44,948 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 08:55:44,955 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:44,955 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500865965] [2019-10-22 08:55:44,955 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:44,956 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:44,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:45,847 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:45,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:45,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1669554868, now seen corresponding path program 1 times [2019-10-22 08:55:45,852 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:45,852 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729986050] [2019-10-22 08:55:45,852 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:45,852 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:45,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:45,899 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 08:55:45,899 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729986050] [2019-10-22 08:55:45,900 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:45,900 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:55:45,900 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904254077] [2019-10-22 08:55:45,905 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:55:45,906 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:45,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:55:45,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:55:45,922 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 3 states. [2019-10-22 08:55:45,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:45,988 INFO L93 Difference]: Finished difference Result 262 states and 378 transitions. [2019-10-22 08:55:45,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:55:45,995 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 378 transitions. [2019-10-22 08:55:46,001 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 170 [2019-10-22 08:55:46,011 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 248 states and 363 transitions. [2019-10-22 08:55:46,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 248 [2019-10-22 08:55:46,016 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 248 [2019-10-22 08:55:46,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 248 states and 363 transitions. [2019-10-22 08:55:46,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:55:46,020 INFO L688 BuchiCegarLoop]: Abstraction has 248 states and 363 transitions. [2019-10-22 08:55:46,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states and 363 transitions. [2019-10-22 08:55:46,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 246. [2019-10-22 08:55:46,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-10-22 08:55:46,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 360 transitions. [2019-10-22 08:55:46,065 INFO L711 BuchiCegarLoop]: Abstraction has 246 states and 360 transitions. [2019-10-22 08:55:46,066 INFO L591 BuchiCegarLoop]: Abstraction has 246 states and 360 transitions. [2019-10-22 08:55:46,066 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:55:46,066 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 360 transitions. [2019-10-22 08:55:46,069 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2019-10-22 08:55:46,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:46,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:46,070 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:46,070 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:46,071 INFO L791 eck$LassoCheckResult]: Stem: 539#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1); 414#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; 415#L989 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 475#L997 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 500#L130 assume 0 != main_~tmp~0; 440#L103 havoc test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 441#L263-1 [2019-10-22 08:55:46,071 INFO L793 eck$LassoCheckResult]: Loop: 441#L263-1 assume !false; 551#L669 assume test_~splverifierCounter~0 < 4; 552#L670 test_~tmp~5 := test_#t~nondet48;havoc test_#t~nondet48; 585#L678 assume !(0 != test_~tmp~5); 583#L678-1 test_~tmp___0~1 := test_#t~nondet49;havoc test_#t~nondet49; 582#L688 assume !(0 != test_~tmp___0~1); 580#L688-1 test_~tmp___2~0 := test_#t~nondet50;havoc test_#t~nondet50; 579#L698 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 422#L706-1 assume !(0 != ~pumpRunning~0); 576#L736 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 575#L794 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret52, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 562#L768-1 assume !(0 == ~pumpRunning~0); 557#L743 havoc __utac_acc__Specification1_spec__1_#t~ret11, __utac_acc__Specification1_spec__1_#t~ret12, __utac_acc__Specification1_spec__1_~tmp~1, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 556#L193-2 __utac_acc__Specification1_spec__1_#t~ret11 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~1 := __utac_acc__Specification1_spec__1_#t~ret11;havoc __utac_acc__Specification1_spec__1_#t~ret11; 554#L263 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1); 441#L263-1 [2019-10-22 08:55:46,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:46,071 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 08:55:46,071 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:46,072 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512360394] [2019-10-22 08:55:46,072 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:46,072 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:46,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:46,442 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:46,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:46,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1405144267, now seen corresponding path program 1 times [2019-10-22 08:55:46,443 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:46,443 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411457265] [2019-10-22 08:55:46,443 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:46,444 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:46,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:46,466 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 08:55:46,466 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411457265] [2019-10-22 08:55:46,466 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:46,467 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:55:46,467 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140097989] [2019-10-22 08:55:46,468 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:55:46,468 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:46,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:55:46,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:55:46,468 INFO L87 Difference]: Start difference. First operand 246 states and 360 transitions. cyclomatic complexity: 117 Second operand 3 states. [2019-10-22 08:55:46,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:46,599 INFO L93 Difference]: Finished difference Result 329 states and 460 transitions. [2019-10-22 08:55:46,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:55:46,600 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 329 states and 460 transitions. [2019-10-22 08:55:46,603 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2019-10-22 08:55:46,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 329 states to 329 states and 460 transitions. [2019-10-22 08:55:46,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 329 [2019-10-22 08:55:46,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 329 [2019-10-22 08:55:46,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 329 states and 460 transitions. [2019-10-22 08:55:46,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:55:46,608 INFO L688 BuchiCegarLoop]: Abstraction has 329 states and 460 transitions. [2019-10-22 08:55:46,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states and 460 transitions. [2019-10-22 08:55:46,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2019-10-22 08:55:46,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2019-10-22 08:55:46,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 460 transitions. [2019-10-22 08:55:46,633 INFO L711 BuchiCegarLoop]: Abstraction has 329 states and 460 transitions. [2019-10-22 08:55:46,633 INFO L591 BuchiCegarLoop]: Abstraction has 329 states and 460 transitions. [2019-10-22 08:55:46,633 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:55:46,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 329 states and 460 transitions. [2019-10-22 08:55:46,636 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2019-10-22 08:55:46,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:46,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:46,639 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:46,639 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] [2019-10-22 08:55:46,640 INFO L791 eck$LassoCheckResult]: Stem: 1117#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1); 995#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; 996#L989 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1048#L997 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1073#L130 assume 0 != main_~tmp~0; 1017#L103 havoc test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 989#L263-1 [2019-10-22 08:55:46,640 INFO L793 eck$LassoCheckResult]: Loop: 989#L263-1 assume !false; 990#L669 assume test_~splverifierCounter~0 < 4; 1030#L670 test_~tmp~5 := test_#t~nondet48;havoc test_#t~nondet48; 1031#L678 assume !(0 != test_~tmp~5); 1051#L678-1 test_~tmp___0~1 := test_#t~nondet49;havoc test_#t~nondet49; 1053#L688 assume !(0 != test_~tmp___0~1); 1025#L688-1 test_~tmp___2~0 := test_#t~nondet50;havoc test_#t~nondet50; 1001#L698 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1002#L706-1 assume !(0 != ~pumpRunning~0); 1018#L736 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1043#L794 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret52, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1044#L768-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret72, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 1116#L233-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 1039#L238-1 isHighWaterLevel_#t~ret72 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret72;havoc isHighWaterLevel_#t~ret72; 1040#L914-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 1075#L914-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 1060#L920-1 processEnvironment__wrappee__highWaterSensor_#t~ret52 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret52;havoc processEnvironment__wrappee__highWaterSensor_#t~ret52; 1009#L772-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 1005#L743 havoc __utac_acc__Specification1_spec__1_#t~ret11, __utac_acc__Specification1_spec__1_#t~ret12, __utac_acc__Specification1_spec__1_~tmp~1, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 1083#L193-2 __utac_acc__Specification1_spec__1_#t~ret11 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~1 := __utac_acc__Specification1_spec__1_#t~ret11;havoc __utac_acc__Specification1_spec__1_#t~ret11; 991#L263 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1); 989#L263-1 [2019-10-22 08:55:46,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:46,640 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 08:55:46,641 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:46,641 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817410275] [2019-10-22 08:55:46,641 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:46,641 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:46,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:46,970 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:46,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:46,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1224409665, now seen corresponding path program 1 times [2019-10-22 08:55:46,975 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:46,975 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077817017] [2019-10-22 08:55:46,976 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:46,976 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:46,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:46,986 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:46,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:46,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1680480859, now seen corresponding path program 1 times [2019-10-22 08:55:46,986 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:46,986 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199503732] [2019-10-22 08:55:46,987 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:46,987 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:46,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:47,222 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:47,342 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-10-22 08:56:04,888 WARN L191 SmtUtils]: Spent 17.48 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 08:56:14,170 WARN L191 SmtUtils]: Spent 9.28 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 08:56:14,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:56:14 BoogieIcfgContainer [2019-10-22 08:56:14,218 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:56:14,218 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:14,218 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:14,218 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:14,219 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:44" (3/4) ... [2019-10-22 08:56:14,221 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:56:14,265 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_71c54df6-ab2e-4e2a-8a04-08f7053b52fd/bin/uautomizer/witness.graphml [2019-10-22 08:56:14,265 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:14,266 INFO L168 Benchmark]: Toolchain (without parser) took 31117.43 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 338.2 MB). Free memory was 937.8 MB in the beginning and 1.3 GB in the end (delta: -383.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:14,266 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:14,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 577.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -178.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:14,267 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:14,267 INFO L168 Benchmark]: Boogie Preprocessor took 65.47 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:14,267 INFO L168 Benchmark]: RCFGBuilder took 936.13 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: 68.3 MB). Peak memory consumption was 68.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:14,268 INFO L168 Benchmark]: BuchiAutomizer took 29422.74 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 199.2 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -284.3 MB). Peak memory consumption was 390.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:14,268 INFO L168 Benchmark]: Witness Printer took 46.65 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:14,270 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 577.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -178.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.47 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 936.13 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: 68.3 MB). Peak memory consumption was 68.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 29422.74 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 199.2 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -284.3 MB). Peak memory consumption was 390.0 MB. Max. memory is 11.5 GB. * Witness Printer took 46.65 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 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 329 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 29.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 28.9s. 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 329 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 361 SDtfs, 320 SDslu, 248 SDs, 0 SdLazy, 41 SolverSat, 26 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: 668]: 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 {retValue_acc=0, NULL=0, NULL=-17, NULL=0, retValue_acc=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a634162=0, NULL=-26, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1786e802=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=-11, NULL=0, NULL=0, retValue_acc=1, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70bd8c81=0, NULL=-18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21a5b84d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7adb6bd2=60, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10c00eae=0, tmp___0=0, NULL=0, NULL=0, tmp=0, NULL=-23, NULL=-13, NULL=0, NULL=-19, tmp___1=0, NULL=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=-22, cleanupTimeShifts=4, NULL=-16, NULL=-20, NULL=-25, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fa69d9f=0, NULL=-27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@777dedee=0, tmp=0, NULL=0, systemActive=1, waterLevel=1, NULL=-5, NULL=0, \result=0, NULL=0, NULL=-10, NULL=0, NULL=-15, \result=1, head=0, pumpRunning=0, tmp=1, NULL=-6, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@96375a8=0, NULL=0, NULL=0, NULL=0, NULL=0, tmp=0, NULL=-21, \result=1, NULL=-8, NULL=-7, NULL=0, retValue_acc=0, tmp___2=60, tmp___0=0, splverifierCounter=0, NULL=0, tmp=1, \result=0, NULL=-4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@334c618d=0, NULL=-3, head=0, NULL=-12, tmp=0, NULL=0, NULL=-9, NULL=-24, NULL=-14} - 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; [L150] int waterLevel = 1; [L151] int methaneLevelCritical = 0; [L450] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L729] int pumpRunning = 0; [L730] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L993] int retValue_acc ; [L996] retValue_acc = 1 [L997] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L659] int splverifierCounter ; [L660] int tmp ; [L661] int tmp___0 ; [L662] int tmp___1 ; [L663] int tmp___2 ; [L666] splverifierCounter = 0 Loop: [L668] COND TRUE 1 [L670] COND TRUE splverifierCounter < 4 [L676] tmp = __VERIFIER_nondet_int() [L678] COND FALSE !(\read(tmp)) [L686] tmp___0 = __VERIFIER_nondet_int() [L688] COND FALSE !(\read(tmp___0)) [L696] tmp___2 = __VERIFIER_nondet_int() [L698] COND TRUE \read(tmp___2) [L962] systemActive = 1 [L736] COND FALSE !(\read(pumpRunning)) [L743] COND TRUE \read(systemActive) [L791] int tmp ; [L794] COND FALSE !(\read(pumpRunning)) [L765] int tmp ; [L768] COND TRUE ! pumpRunning [L906] int retValue_acc ; [L907] int tmp ; [L908] int tmp___0 ; [L230] int retValue_acc ; [L233] COND TRUE waterLevel < 2 [L234] retValue_acc = 1 [L235] return (retValue_acc); [L912] tmp = isHighWaterSensorDry() [L914] COND TRUE \read(tmp) [L915] tmp___0 = 0 [L919] retValue_acc = tmp___0 [L920] return (retValue_acc); [L770] tmp = isHighWaterLevel() [L772] COND FALSE !(\read(tmp)) [L256] int tmp ; [L257] int tmp___0 ; [L189] int retValue_acc ; [L192] retValue_acc = methaneLevelCritical [L193] return (retValue_acc); [L261] tmp = isMethaneLevelCritical() [L263] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...