./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f74f7307-e9e5-4fe2-85b5-e77548588787/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f74f7307-e9e5-4fe2-85b5-e77548588787/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f74f7307-e9e5-4fe2-85b5-e77548588787/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f74f7307-e9e5-4fe2-85b5-e77548588787/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f74f7307-e9e5-4fe2-85b5-e77548588787/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f74f7307-e9e5-4fe2-85b5-e77548588787/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 fab453ece5fcff1538ea80c83122b1ca9f5a0f1e ................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-6b5699a [2019-11-25 08:48:18,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:48:18,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:48:18,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:48:18,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:48:18,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:48:18,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:48:18,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:48:18,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:48:18,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:48:18,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:48:18,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:48:18,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:48:18,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:48:18,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:48:18,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:48:18,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:48:18,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:48:18,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:48:18,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:48:18,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:48:18,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:48:18,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:48:18,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:48:18,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:48:18,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:48:18,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:48:18,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:48:18,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:48:18,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:48:18,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:48:18,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:48:18,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:48:18,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:48:18,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:48:18,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:48:18,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:48:18,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:48:18,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:48:18,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:48:18,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:48:18,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f74f7307-e9e5-4fe2-85b5-e77548588787/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:48:18,082 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:48:18,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:48:18,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:48:18,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:48:18,087 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:48:18,087 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:48:18,088 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:48:18,088 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:48:18,088 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:48:18,089 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:48:18,089 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:48:18,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:48:18,091 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:48:18,091 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:48:18,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:48:18,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:48:18,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:48:18,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:48:18,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:48:18,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:48:18,092 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:48:18,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:48:18,093 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:48:18,093 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:48:18,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:48:18,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:48:18,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:48:18,094 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:48:18,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:48:18,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:48:18,095 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:48:18,096 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:48:18,097 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/run_dir_f74f7307-e9e5-4fe2-85b5-e77548588787/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 -> fab453ece5fcff1538ea80c83122b1ca9f5a0f1e [2019-11-25 08:48:18,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:48:18,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:48:18,253 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:48:18,254 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:48:18,255 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:48:18,256 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f74f7307-e9e5-4fe2-85b5-e77548588787/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c [2019-11-25 08:48:18,310 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f74f7307-e9e5-4fe2-85b5-e77548588787/bin/uautomizer/data/40e589ee6/a7ba656355664b03a3cab698b5b1313b/FLAGa472ace81 [2019-11-25 08:48:18,738 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:48:18,739 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f74f7307-e9e5-4fe2-85b5-e77548588787/sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c [2019-11-25 08:48:18,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f74f7307-e9e5-4fe2-85b5-e77548588787/bin/uautomizer/data/40e589ee6/a7ba656355664b03a3cab698b5b1313b/FLAGa472ace81 [2019-11-25 08:48:19,041 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f74f7307-e9e5-4fe2-85b5-e77548588787/bin/uautomizer/data/40e589ee6/a7ba656355664b03a3cab698b5b1313b [2019-11-25 08:48:19,043 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:48:19,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:48:19,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:48:19,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:48:19,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:48:19,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:48:19" (1/1) ... [2019-11-25 08:48:19,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ae6ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:19, skipping insertion in model container [2019-11-25 08:48:19,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:48:19" (1/1) ... [2019-11-25 08:48:19,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:48:19,118 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:48:19,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:48:19,476 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:48:19,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:48:19,573 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:48:19,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:19 WrapperNode [2019-11-25 08:48:19,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:48:19,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:48:19,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:48:19,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:48:19,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:19" (1/1) ... [2019-11-25 08:48:19,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:19" (1/1) ... [2019-11-25 08:48:19,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:48:19,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:48:19,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:48:19,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:48:19,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:19" (1/1) ... [2019-11-25 08:48:19,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:19" (1/1) ... [2019-11-25 08:48:19,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:19" (1/1) ... [2019-11-25 08:48:19,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:19" (1/1) ... [2019-11-25 08:48:19,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:19" (1/1) ... [2019-11-25 08:48:19,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:19" (1/1) ... [2019-11-25 08:48:19,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:19" (1/1) ... [2019-11-25 08:48:19,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:48:19,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:48:19,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:48:19,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:48:19,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f74f7307-e9e5-4fe2-85b5-e77548588787/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 [2019-11-25 08:48:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:48:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:48:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:48:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:48:20,544 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:48:20,544 INFO L284 CfgBuilder]: Removed 116 assume(true) statements. [2019-11-25 08:48:20,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:48:20 BoogieIcfgContainer [2019-11-25 08:48:20,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:48:20,546 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:48:20,546 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:48:20,550 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:48:20,550 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:48:20,550 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:48:19" (1/3) ... [2019-11-25 08:48:20,553 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a8c14a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:48:20, skipping insertion in model container [2019-11-25 08:48:20,553 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:48:20,553 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:19" (2/3) ... [2019-11-25 08:48:20,554 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a8c14a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:48:20, skipping insertion in model container [2019-11-25 08:48:20,554 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:48:20,554 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:48:20" (3/3) ... [2019-11-25 08:48:20,556 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product20.cil.c [2019-11-25 08:48:20,596 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:48:20,596 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:48:20,596 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:48:20,596 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:48:20,596 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:48:20,596 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:48:20,596 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:48:20,596 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:48:20,611 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states. [2019-11-25 08:48:20,634 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-11-25 08:48:20,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:48:20,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:48:20,641 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:20,641 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:20,641 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:48:20,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states. [2019-11-25 08:48:20,647 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-11-25 08:48:20,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:48:20,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:48:20,649 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:20,649 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:20,653 INFO L794 eck$LassoCheckResult]: Stem: 30#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 7#L-1true havoc main_#res;havoc main_#t~ret49, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 26#L578true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 53#L586true main_#t~ret49 := valid_product_#res;main_~tmp~4 := main_#t~ret49;havoc main_#t~ret49; 69#L686true assume 0 != main_~tmp~4; 5#L661true ~switchedOnBeforeTS~0 := 0; 57#L510true havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, 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; 34#L531-1true [2019-11-25 08:48:20,654 INFO L796 eck$LassoCheckResult]: Loop: 34#L531-1true assume !false; 9#L713true assume test_~splverifierCounter~0 < 4; 54#L714true test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 61#L722true assume !(0 != test_~tmp~5); 64#L722-1true test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 36#L732true assume !(0 != test_~tmp___0~1); 40#L732-1true test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 15#L742true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 24#L750-1true havoc __utac_acc__Specification5_spec__2_#t~ret45;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 44#L868true __utac_acc__Specification5_spec__2_#t~ret45 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45;havoc __utac_acc__Specification5_spec__2_#t~ret45; 33#L520true assume !(0 != ~pumpRunning~0); 42#L783true assume !(0 != ~systemActive~0); 28#L790true havoc __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_#t~ret47, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 59#L488true __utac_acc__Specification5_spec__3_#t~ret46 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret46;havoc __utac_acc__Specification5_spec__3_#t~ret46; 31#L531true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 34#L531-1true [2019-11-25 08:48:20,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:20,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-25 08:48:20,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:20,668 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531563081] [2019-11-25 08:48:20,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:20,979 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:48:20,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:20,980 INFO L82 PathProgramCache]: Analyzing trace with hash 675133686, now seen corresponding path program 1 times [2019-11-25 08:48:20,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:20,981 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213425682] [2019-11-25 08:48:20,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:48:21,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:48:21,036 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213425682] [2019-11-25 08:48:21,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:48:21,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:48:21,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78693045] [2019-11-25 08:48:21,041 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:48:21,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:48:21,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:48:21,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:48:21,057 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 3 states. [2019-11-25 08:48:21,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:48:21,125 INFO L93 Difference]: Finished difference Result 159 states and 221 transitions. [2019-11-25 08:48:21,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:48:21,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 221 transitions. [2019-11-25 08:48:21,134 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 102 [2019-11-25 08:48:21,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 145 states and 206 transitions. [2019-11-25 08:48:21,142 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 145 [2019-11-25 08:48:21,143 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 145 [2019-11-25 08:48:21,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 206 transitions. [2019-11-25 08:48:21,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:48:21,145 INFO L688 BuchiCegarLoop]: Abstraction has 145 states and 206 transitions. [2019-11-25 08:48:21,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 206 transitions. [2019-11-25 08:48:21,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143. [2019-11-25 08:48:21,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-11-25 08:48:21,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 203 transitions. [2019-11-25 08:48:21,196 INFO L711 BuchiCegarLoop]: Abstraction has 143 states and 203 transitions. [2019-11-25 08:48:21,196 INFO L591 BuchiCegarLoop]: Abstraction has 143 states and 203 transitions. [2019-11-25 08:48:21,197 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:48:21,197 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 143 states and 203 transitions. [2019-11-25 08:48:21,200 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2019-11-25 08:48:21,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:48:21,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:48:21,201 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:21,201 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:21,201 INFO L794 eck$LassoCheckResult]: Stem: 292#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 261#L-1 havoc main_#res;havoc main_#t~ret49, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 262#L578 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 288#L586 main_#t~ret49 := valid_product_#res;main_~tmp~4 := main_#t~ret49;havoc main_#t~ret49; 330#L686 assume 0 != main_~tmp~4; 257#L661 ~switchedOnBeforeTS~0 := 0; 258#L510 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, 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; 332#L531-1 [2019-11-25 08:48:21,202 INFO L796 eck$LassoCheckResult]: Loop: 332#L531-1 assume !false; 351#L713 assume test_~splverifierCounter~0 < 4; 352#L714 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 337#L722 assume !(0 != test_~tmp~5); 277#L722-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 304#L732 assume !(0 != test_~tmp___0~1); 306#L732-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 272#L742 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 274#L750-1 havoc __utac_acc__Specification5_spec__2_#t~ret45;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 285#L868 __utac_acc__Specification5_spec__2_#t~ret45 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45;havoc __utac_acc__Specification5_spec__2_#t~ret45; 318#L520 assume !(0 != ~pumpRunning~0); 314#L783 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 315#L815 assume !(0 != ~pumpRunning~0); 356#L790 havoc __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_#t~ret47, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 335#L488 __utac_acc__Specification5_spec__3_#t~ret46 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret46;havoc __utac_acc__Specification5_spec__3_#t~ret46; 336#L531 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 332#L531-1 [2019-11-25 08:48:21,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:21,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-25 08:48:21,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:21,203 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965802082] [2019-11-25 08:48:21,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:21,365 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:48:21,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:21,366 INFO L82 PathProgramCache]: Analyzing trace with hash -572685309, now seen corresponding path program 1 times [2019-11-25 08:48:21,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:21,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259921963] [2019-11-25 08:48:21,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:21,393 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:48:21,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:21,394 INFO L82 PathProgramCache]: Analyzing trace with hash -747445943, now seen corresponding path program 1 times [2019-11-25 08:48:21,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:21,394 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136985120] [2019-11-25 08:48:21,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:48:21,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:48:21,523 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136985120] [2019-11-25 08:48:21,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:48:21,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:48:21,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844521165] [2019-11-25 08:48:21,645 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2019-11-25 08:48:21,811 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-11-25 08:48:21,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:48:21,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:48:21,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:48:21,836 INFO L87 Difference]: Start difference. First operand 143 states and 203 transitions. cyclomatic complexity: 63 Second operand 5 states. [2019-11-25 08:48:22,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:48:22,085 INFO L93 Difference]: Finished difference Result 398 states and 558 transitions. [2019-11-25 08:48:22,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:48:22,089 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 398 states and 558 transitions. [2019-11-25 08:48:22,106 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 194 [2019-11-25 08:48:22,114 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 398 states to 398 states and 558 transitions. [2019-11-25 08:48:22,118 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 398 [2019-11-25 08:48:22,119 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 398 [2019-11-25 08:48:22,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 398 states and 558 transitions. [2019-11-25 08:48:22,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:48:22,122 INFO L688 BuchiCegarLoop]: Abstraction has 398 states and 558 transitions. [2019-11-25 08:48:22,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states and 558 transitions. [2019-11-25 08:48:22,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 279. [2019-11-25 08:48:22,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2019-11-25 08:48:22,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 385 transitions. [2019-11-25 08:48:22,147 INFO L711 BuchiCegarLoop]: Abstraction has 279 states and 385 transitions. [2019-11-25 08:48:22,147 INFO L591 BuchiCegarLoop]: Abstraction has 279 states and 385 transitions. [2019-11-25 08:48:22,148 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:48:22,148 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 385 transitions. [2019-11-25 08:48:22,150 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 194 [2019-11-25 08:48:22,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:48:22,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:48:22,151 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:22,152 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:22,152 INFO L794 eck$LassoCheckResult]: Stem: 848#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 818#L-1 havoc main_#res;havoc main_#t~ret49, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 819#L578 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 845#L586 main_#t~ret49 := valid_product_#res;main_~tmp~4 := main_#t~ret49;havoc main_#t~ret49; 882#L686 assume 0 != main_~tmp~4; 814#L661 ~switchedOnBeforeTS~0 := 0; 815#L510 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, 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; 886#L531-1 [2019-11-25 08:48:22,152 INFO L796 eck$LassoCheckResult]: Loop: 886#L531-1 assume !false; 1060#L713 assume test_~splverifierCounter~0 < 4; 1059#L714 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 1058#L722 assume !(0 != test_~tmp~5); 1053#L722-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 1051#L732 assume !(0 != test_~tmp___0~1); 1047#L732-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 1045#L742 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 831#L750-1 havoc __utac_acc__Specification5_spec__2_#t~ret45;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 1038#L868 __utac_acc__Specification5_spec__2_#t~ret45 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45;havoc __utac_acc__Specification5_spec__2_#t~ret45; 1035#L520 assume !(0 != ~pumpRunning~0); 1036#L783 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1081#L815 assume !(0 != ~pumpRunning~0); 1077#L790 havoc __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_#t~ret47, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 1076#L488 __utac_acc__Specification5_spec__3_#t~ret46 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret46;havoc __utac_acc__Specification5_spec__3_#t~ret46; 849#L531 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 850#L868-1 __utac_acc__Specification5_spec__3_#t~ret47 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret47;havoc __utac_acc__Specification5_spec__3_#t~ret47; 1063#L535 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 886#L531-1 [2019-11-25 08:48:22,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:22,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-25 08:48:22,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:22,153 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696125723] [2019-11-25 08:48:22,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:22,279 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:48:22,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:22,281 INFO L82 PathProgramCache]: Analyzing trace with hash -594781890, now seen corresponding path program 1 times [2019-11-25 08:48:22,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:22,282 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172147467] [2019-11-25 08:48:22,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:22,298 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:48:22,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:22,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1036026620, now seen corresponding path program 1 times [2019-11-25 08:48:22,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:22,299 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478642841] [2019-11-25 08:48:22,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:48:22,390 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:48:22,510 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-11-25 08:48:52,393 WARN L192 SmtUtils]: Spent 29.83 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-25 08:49:06,757 WARN L192 SmtUtils]: Spent 14.36 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-25 08:49:06,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:49:06 BoogieIcfgContainer [2019-11-25 08:49:06,822 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:49:06,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:49:06,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:49:06,823 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:49:06,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:48:20" (3/4) ... [2019-11-25 08:49:06,826 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:49:06,881 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f74f7307-e9e5-4fe2-85b5-e77548588787/bin/uautomizer/witness.graphml [2019-11-25 08:49:06,882 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:49:06,883 INFO L168 Benchmark]: Toolchain (without parser) took 47838.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.1 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -103.9 MB). Peak memory consumption was 82.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:06,883 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:49:06,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:06,885 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:06,885 INFO L168 Benchmark]: Boogie Preprocessor took 36.96 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. [2019-11-25 08:49:06,885 INFO L168 Benchmark]: RCFGBuilder took 869.99 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:06,886 INFO L168 Benchmark]: BuchiAutomizer took 46275.84 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.5 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 14.5 MB). Peak memory consumption was 233.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:06,886 INFO L168 Benchmark]: Witness Printer took 59.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:06,889 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 528.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.96 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. * RCFGBuilder took 869.99 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 46275.84 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.5 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 14.5 MB). Peak memory consumption was 233.1 MB. Max. memory is 11.5 GB. * Witness Printer took 59.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 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 279 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 46.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 45.6s. 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, 121 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 279 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 281 SDtfs, 458 SDslu, 422 SDs, 0 SdLazy, 92 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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: 712]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=7746} State at position 1 is {NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7708b541=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@560c1568=0, NULL=7746, NULL=0, NULL=7757, NULL=0, NULL=0, NULL=7775, NULL=7758, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63eea38c=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3271c882=71, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@873c939=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3634e1a6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fcca63f=0, tmp=1, NULL=0, NULL=0, tmp=0, NULL=0, tmp___1=0, NULL=7761, NULL=7748, NULL=7756, NULL=7760, NULL=7766, retValue_acc=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=7750, NULL=7754, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57be3c9f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2723a719=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=7755, \result=1, NULL=0, NULL=0, NULL=0, NULL=7752, NULL=0, tmp___0=0, \result=1, NULL=7751, head=0, pumpRunning=0, NULL=7749, \result=0, NULL=7763, tmp=1, NULL=0, NULL=0, NULL=0, NULL=7759, NULL=7777, retValue_acc=1, NULL=7762, NULL=0, tmp___2=71, retValue_acc=1, NULL=7772, tmp___0=0, splverifierCounter=0, NULL=0, NULL=7776, head=0, NULL=0, NULL=7771, tmp=0, NULL=7747, NULL=0, NULL=7764, NULL=0, NULL=0, NULL=7778, NULL=7753} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L504] int switchedOnBeforeTS ; [L600] int cleanupTimeShifts = 4; [L773] int pumpRunning = 0; [L774] int systemActive = 1; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L677] int retValue_acc ; [L678] int tmp ; [L582] int retValue_acc ; [L585] retValue_acc = 1 [L586] return (retValue_acc); [L684] tmp = valid_product() [L686] COND TRUE \read(tmp) [L509] switchedOnBeforeTS = 0 [L703] int splverifierCounter ; [L704] int tmp ; [L705] int tmp___0 ; [L706] int tmp___1 ; [L707] int tmp___2 ; [L710] splverifierCounter = 0 Loop: [L712] COND TRUE 1 [L714] COND TRUE splverifierCounter < 4 [L720] tmp = __VERIFIER_nondet_int() [L722] COND FALSE !(\read(tmp)) [L730] tmp___0 = __VERIFIER_nondet_int() [L732] COND FALSE !(\read(tmp___0)) [L740] tmp___2 = __VERIFIER_nondet_int() [L742] COND TRUE \read(tmp___2) [L946] systemActive = 1 [L864] int retValue_acc ; [L867] retValue_acc = pumpRunning [L868] return (retValue_acc); [L518] switchedOnBeforeTS = isPumpRunning() [L783] COND FALSE !(\read(pumpRunning)) [L790] COND TRUE \read(systemActive) [L812] int tmp ; [L815] COND FALSE !(\read(pumpRunning)) [L524] int tmp ; [L525] int tmp___0 ; [L484] int retValue_acc ; [L487] retValue_acc = waterLevel [L488] return (retValue_acc); [L529] tmp = getWaterLevel() [L531] COND TRUE tmp != 2 [L864] int retValue_acc ; [L867] retValue_acc = pumpRunning [L868] return (retValue_acc); [L533] tmp___0 = isPumpRunning() [L535] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...