./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_77e47744-9098-4a39-8bce-397bf8f2bc12/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_77e47744-9098-4a39-8bce-397bf8f2bc12/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_77e47744-9098-4a39-8bce-397bf8f2bc12/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_77e47744-9098-4a39-8bce-397bf8f2bc12/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_77e47744-9098-4a39-8bce-397bf8f2bc12/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_77e47744-9098-4a39-8bce-397bf8f2bc12/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 5667765c016e1c72bafcc0c365d87d7652cb3eb1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-07 17:30:42,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:30:42,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:30:42,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:30:42,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:30:42,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:30:42,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:30:42,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:30:42,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:30:42,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:30:42,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:30:42,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:30:42,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:30:42,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:30:42,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:30:42,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:30:42,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:30:42,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:30:42,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:30:42,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:30:42,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:30:42,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:30:42,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:30:42,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:30:42,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:30:42,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:30:42,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:30:42,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:30:42,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:30:42,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:30:42,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:30:42,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:30:42,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:30:42,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:30:42,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:30:42,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:30:42,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:30:42,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:30:42,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:30:42,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:30:42,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:30:42,390 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_77e47744-9098-4a39-8bce-397bf8f2bc12/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 17:30:42,401 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:30:42,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:30:42,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:30:42,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:30:42,402 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:30:42,402 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:30:42,402 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:30:42,402 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:30:42,402 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:30:42,403 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:30:42,403 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:30:42,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:30:42,403 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:30:42,403 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:30:42,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:30:42,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:30:42,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:30:42,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:30:42,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:30:42,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:30:42,404 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:30:42,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:30:42,404 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:30:42,404 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:30:42,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:30:42,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:30:42,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:30:42,405 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:30:42,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:30:42,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:30:42,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:30:42,405 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:30:42,406 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:30:42,406 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_77e47744-9098-4a39-8bce-397bf8f2bc12/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 -> 5667765c016e1c72bafcc0c365d87d7652cb3eb1 [2019-12-07 17:30:42,504 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:30:42,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:30:42,515 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:30:42,516 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:30:42,516 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:30:42,517 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_77e47744-9098-4a39-8bce-397bf8f2bc12/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2019-12-07 17:30:42,564 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_77e47744-9098-4a39-8bce-397bf8f2bc12/bin/uautomizer/data/972a29b9e/bd028f1a23324971811ee8da8d252088/FLAGde95abeda [2019-12-07 17:30:42,926 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:30:42,926 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_77e47744-9098-4a39-8bce-397bf8f2bc12/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2019-12-07 17:30:42,934 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_77e47744-9098-4a39-8bce-397bf8f2bc12/bin/uautomizer/data/972a29b9e/bd028f1a23324971811ee8da8d252088/FLAGde95abeda [2019-12-07 17:30:42,943 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_77e47744-9098-4a39-8bce-397bf8f2bc12/bin/uautomizer/data/972a29b9e/bd028f1a23324971811ee8da8d252088 [2019-12-07 17:30:42,945 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:30:42,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:30:42,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:30:42,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:30:42,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:30:42,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:30:42" (1/1) ... [2019-12-07 17:30:42,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2b2671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:42, skipping insertion in model container [2019-12-07 17:30:42,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:30:42" (1/1) ... [2019-12-07 17:30:42,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:30:42,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:30:43,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:30:43,215 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:30:43,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:30:43,278 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:30:43,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:43 WrapperNode [2019-12-07 17:30:43,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:30:43,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:30:43,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:30:43,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:30:43,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:43" (1/1) ... [2019-12-07 17:30:43,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:43" (1/1) ... [2019-12-07 17:30:43,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:30:43,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:30:43,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:30:43,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:30:43,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:43" (1/1) ... [2019-12-07 17:30:43,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:43" (1/1) ... [2019-12-07 17:30:43,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:43" (1/1) ... [2019-12-07 17:30:43,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:43" (1/1) ... [2019-12-07 17:30:43,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:43" (1/1) ... [2019-12-07 17:30:43,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:43" (1/1) ... [2019-12-07 17:30:43,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:43" (1/1) ... [2019-12-07 17:30:43,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:30:43,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:30:43,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:30:43,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:30:43,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_77e47744-9098-4a39-8bce-397bf8f2bc12/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 [2019-12-07 17:30:43,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:30:43,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 17:30:43,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:30:43,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:30:43,746 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:30:43,746 INFO L287 CfgBuilder]: Removed 102 assume(true) statements. [2019-12-07 17:30:43,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:30:43 BoogieIcfgContainer [2019-12-07 17:30:43,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:30:43,748 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:30:43,748 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:30:43,750 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:30:43,750 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:30:43,750 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:30:42" (1/3) ... [2019-12-07 17:30:43,751 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ff53186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:30:43, skipping insertion in model container [2019-12-07 17:30:43,751 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:30:43,751 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:30:43" (2/3) ... [2019-12-07 17:30:43,751 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ff53186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:30:43, skipping insertion in model container [2019-12-07 17:30:43,751 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:30:43,752 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:30:43" (3/3) ... [2019-12-07 17:30:43,753 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product33.cil.c [2019-12-07 17:30:43,781 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:30:43,781 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:30:43,781 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:30:43,781 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:30:43,781 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:30:43,781 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:30:43,781 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:30:43,781 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:30:43,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2019-12-07 17:30:43,809 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-12-07 17:30:43,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:30:43,810 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:30:43,815 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:30:43,815 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:30:43,815 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:30:43,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2019-12-07 17:30:43,819 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-12-07 17:30:43,819 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:30:43,819 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:30:43,820 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:30:43,820 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:30:43,824 INFO L794 eck$LassoCheckResult]: Stem: 30#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 13#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 12#L895true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 17#L903true main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 58#L229true assume 0 != main_~tmp~0; 45#L202true havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 67#L854-1true [2019-12-07 17:30:43,824 INFO L796 eck$LassoCheckResult]: Loop: 67#L854-1true assume !false; 27#L629true assume test_~splverifierCounter~0 < 4; 41#L630true test_~tmp~4 := test_#t~nondet46;havoc test_#t~nondet46; 46#L638true assume !(0 != test_~tmp~4); 48#L638-1true test_~tmp___0~0 := test_#t~nondet47;havoc test_#t~nondet47; 31#L648true assume !(0 != test_~tmp___0~0); 32#L648-1true test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 16#L658true assume 0 != test_~tmp___2~0; 63#L664-2true assume !(0 != ~pumpRunning~0); 9#L694true assume !(0 != ~systemActive~0); 73#L701true havoc __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 57#L90true __utac_acc__Specification3_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret69;havoc __utac_acc__Specification3_spec__1_#t~ret69; 21#L848true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 67#L854-1true [2019-12-07 17:30:43,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:43,828 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-12-07 17:30:43,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:30:43,834 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746920929] [2019-12-07 17:30:43,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:30:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:44,029 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:30:44,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:44,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1681529867, now seen corresponding path program 1 times [2019-12-07 17:30:44,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:30:44,030 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16860178] [2019-12-07 17:30:44,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:30:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:44,040 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:30:44,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:44,041 INFO L82 PathProgramCache]: Analyzing trace with hash 32749071, now seen corresponding path program 1 times [2019-12-07 17:30:44,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:30:44,041 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577423272] [2019-12-07 17:30:44,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:30:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:30:44,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:30:44,120 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577423272] [2019-12-07 17:30:44,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:30:44,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:30:44,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048430799] [2019-12-07 17:30:44,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:30:44,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:30:44,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:30:44,185 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 6 states. [2019-12-07 17:30:44,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:30:44,277 INFO L93 Difference]: Finished difference Result 81 states and 112 transitions. [2019-12-07 17:30:44,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:30:44,279 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 112 transitions. [2019-12-07 17:30:44,283 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-12-07 17:30:44,288 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 74 states and 105 transitions. [2019-12-07 17:30:44,289 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74 [2019-12-07 17:30:44,289 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 74 [2019-12-07 17:30:44,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 105 transitions. [2019-12-07 17:30:44,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:30:44,291 INFO L688 BuchiCegarLoop]: Abstraction has 74 states and 105 transitions. [2019-12-07 17:30:44,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 105 transitions. [2019-12-07 17:30:44,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2019-12-07 17:30:44,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-12-07 17:30:44,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2019-12-07 17:30:44,314 INFO L711 BuchiCegarLoop]: Abstraction has 74 states and 105 transitions. [2019-12-07 17:30:44,314 INFO L591 BuchiCegarLoop]: Abstraction has 74 states and 105 transitions. [2019-12-07 17:30:44,314 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:30:44,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 105 transitions. [2019-12-07 17:30:44,315 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-12-07 17:30:44,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:30:44,315 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:30:44,316 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:30:44,316 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:30:44,316 INFO L794 eck$LassoCheckResult]: Stem: 231#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 203#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 201#L895 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 202#L903 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 211#L229 assume 0 != main_~tmp~0; 242#L202 havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 215#L854-1 [2019-12-07 17:30:44,316 INFO L796 eck$LassoCheckResult]: Loop: 215#L854-1 assume !false; 225#L629 assume test_~splverifierCounter~0 < 4; 226#L630 test_~tmp~4 := test_#t~nondet46;havoc test_#t~nondet46; 237#L638 assume !(0 != test_~tmp~4); 207#L638-1 test_~tmp___0~0 := test_#t~nondet47;havoc test_#t~nondet47; 232#L648 assume !(0 != test_~tmp___0~0); 233#L648-1 test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 208#L658 assume 0 != test_~tmp___2~0; 209#L664-2 assume !(0 != ~pumpRunning~0); 195#L694 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 196#L726 assume !(0 == ~pumpRunning~0); 247#L701 havoc __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 246#L90 __utac_acc__Specification3_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret69;havoc __utac_acc__Specification3_spec__1_#t~ret69; 214#L848 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 215#L854-1 [2019-12-07 17:30:44,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:44,316 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-12-07 17:30:44,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:30:44,317 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146403809] [2019-12-07 17:30:44,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:30:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:44,383 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:30:44,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:44,384 INFO L82 PathProgramCache]: Analyzing trace with hash -619428466, now seen corresponding path program 1 times [2019-12-07 17:30:44,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:30:44,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711692618] [2019-12-07 17:30:44,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:30:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:30:44,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:30:44,392 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711692618] [2019-12-07 17:30:44,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:30:44,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:30:44,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454968291] [2019-12-07 17:30:44,393 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 17:30:44,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:30:44,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:30:44,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:30:44,394 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. cyclomatic complexity: 33 Second operand 3 states. [2019-12-07 17:30:44,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:30:44,437 INFO L93 Difference]: Finished difference Result 121 states and 165 transitions. [2019-12-07 17:30:44,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:30:44,437 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 121 states and 165 transitions. [2019-12-07 17:30:44,439 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 84 [2019-12-07 17:30:44,440 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 121 states to 121 states and 165 transitions. [2019-12-07 17:30:44,440 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 121 [2019-12-07 17:30:44,441 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 121 [2019-12-07 17:30:44,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 121 states and 165 transitions. [2019-12-07 17:30:44,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:30:44,442 INFO L688 BuchiCegarLoop]: Abstraction has 121 states and 165 transitions. [2019-12-07 17:30:44,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states and 165 transitions. [2019-12-07 17:30:44,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-12-07 17:30:44,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-12-07 17:30:44,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 165 transitions. [2019-12-07 17:30:44,448 INFO L711 BuchiCegarLoop]: Abstraction has 121 states and 165 transitions. [2019-12-07 17:30:44,448 INFO L591 BuchiCegarLoop]: Abstraction has 121 states and 165 transitions. [2019-12-07 17:30:44,448 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 17:30:44,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 121 states and 165 transitions. [2019-12-07 17:30:44,449 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 84 [2019-12-07 17:30:44,449 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:30:44,449 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:30:44,450 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:30:44,450 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] [2019-12-07 17:30:44,450 INFO L794 eck$LassoCheckResult]: Stem: 430#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 402#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 400#L895 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 401#L903 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 410#L229 assume 0 != main_~tmp~0; 446#L202 havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 447#L854-1 [2019-12-07 17:30:44,450 INFO L796 eck$LassoCheckResult]: Loop: 447#L854-1 assume !false; 465#L629 assume test_~splverifierCounter~0 < 4; 441#L630 test_~tmp~4 := test_#t~nondet46;havoc test_#t~nondet46; 442#L638 assume !(0 != test_~tmp~4); 406#L638-1 test_~tmp___0~0 := test_#t~nondet47;havoc test_#t~nondet47; 431#L648 assume !(0 != test_~tmp___0~0); 432#L648-1 test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 407#L658 assume 0 != test_~tmp___2~0; 408#L664-2 assume !(0 != ~pumpRunning~0); 395#L694 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 396#L726 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 455#L130 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 390#L135 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 391#L828 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 449#L828-2 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 416#L834 processEnvironment_#t~ret50 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret50;havoc processEnvironment_#t~ret50; 417#L730 assume !(0 != processEnvironment_~tmp~5); 463#L701 havoc __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 474#L90 __utac_acc__Specification3_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret69;havoc __utac_acc__Specification3_spec__1_#t~ret69; 472#L848 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 447#L854-1 [2019-12-07 17:30:44,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:44,450 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-12-07 17:30:44,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:30:44,451 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527896579] [2019-12-07 17:30:44,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:30:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:44,494 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:30:44,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:44,495 INFO L82 PathProgramCache]: Analyzing trace with hash -22033894, now seen corresponding path program 1 times [2019-12-07 17:30:44,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:30:44,495 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538510054] [2019-12-07 17:30:44,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:30:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:44,503 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:30:44,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:44,503 INFO L82 PathProgramCache]: Analyzing trace with hash -7321920, now seen corresponding path program 1 times [2019-12-07 17:30:44,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:30:44,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000490341] [2019-12-07 17:30:44,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:30:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:30:44,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:30:44,541 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000490341] [2019-12-07 17:30:44,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:30:44,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:30:44,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933627178] [2019-12-07 17:30:44,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:30:44,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:30:44,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:30:44,675 INFO L87 Difference]: Start difference. First operand 121 states and 165 transitions. cyclomatic complexity: 46 Second operand 5 states. [2019-12-07 17:30:44,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:30:44,744 INFO L93 Difference]: Finished difference Result 398 states and 547 transitions. [2019-12-07 17:30:44,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 17:30:44,744 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 398 states and 547 transitions. [2019-12-07 17:30:44,747 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 291 [2019-12-07 17:30:44,751 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 398 states to 398 states and 547 transitions. [2019-12-07 17:30:44,751 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 398 [2019-12-07 17:30:44,752 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 398 [2019-12-07 17:30:44,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 398 states and 547 transitions. [2019-12-07 17:30:44,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:30:44,754 INFO L688 BuchiCegarLoop]: Abstraction has 398 states and 547 transitions. [2019-12-07 17:30:44,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states and 547 transitions. [2019-12-07 17:30:44,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 236. [2019-12-07 17:30:44,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-12-07 17:30:44,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 316 transitions. [2019-12-07 17:30:44,767 INFO L711 BuchiCegarLoop]: Abstraction has 236 states and 316 transitions. [2019-12-07 17:30:44,767 INFO L591 BuchiCegarLoop]: Abstraction has 236 states and 316 transitions. [2019-12-07 17:30:44,767 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 17:30:44,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 236 states and 316 transitions. [2019-12-07 17:30:44,769 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2019-12-07 17:30:44,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:30:44,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:30:44,769 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:30:44,769 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:30:44,770 INFO L794 eck$LassoCheckResult]: Stem: 966#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 938#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 936#L895 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 937#L903 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 946#L229 assume 0 != main_~tmp~0; 986#L202 havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 987#L854-1 [2019-12-07 17:30:44,770 INFO L796 eck$LassoCheckResult]: Loop: 987#L854-1 assume !false; 1086#L629 assume test_~splverifierCounter~0 < 4; 980#L630 test_~tmp~4 := test_#t~nondet46;havoc test_#t~nondet46; 981#L638 assume !(0 != test_~tmp~4); 1150#L638-1 test_~tmp___0~0 := test_#t~nondet47;havoc test_#t~nondet47; 967#L648 assume !(0 != test_~tmp___0~0); 968#L648-1 test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 943#L658 assume 0 != test_~tmp___2~0; 944#L664-2 assume !(0 != ~pumpRunning~0); 1006#L694 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1134#L726 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1049#L130 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1131#L135 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 993#L828 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 994#L828-2 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 952#L834 processEnvironment_#t~ret50 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret50;havoc processEnvironment_#t~ret50; 953#L730 assume !(0 != processEnvironment_~tmp~5); 1023#L701 havoc __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1001#L90 __utac_acc__Specification3_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret69;havoc __utac_acc__Specification3_spec__1_#t~ret69; 1002#L848 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 976#L122 __utac_acc__Specification3_spec__1_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 977#L854 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 987#L854-1 [2019-12-07 17:30:44,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:44,770 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-12-07 17:30:44,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:30:44,771 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803559273] [2019-12-07 17:30:44,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:30:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:44,811 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:30:44,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:44,812 INFO L82 PathProgramCache]: Analyzing trace with hash 300270412, now seen corresponding path program 1 times [2019-12-07 17:30:44,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:30:44,812 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759053383] [2019-12-07 17:30:44,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:30:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:44,820 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:30:44,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:30:44,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1553575538, now seen corresponding path program 1 times [2019-12-07 17:30:44,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:30:44,821 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41975227] [2019-12-07 17:30:44,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:30:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:30:44,868 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:31:06,375 WARN L192 SmtUtils]: Spent 21.37 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-12-07 17:31:18,970 WARN L192 SmtUtils]: Spent 12.59 s on a formula simplification that was a NOOP. DAG size: 400 [2019-12-07 17:31:19,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:31:19 BoogieIcfgContainer [2019-12-07 17:31:19,021 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:31:19,022 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:31:19,022 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:31:19,022 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:31:19,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:30:43" (3/4) ... [2019-12-07 17:31:19,024 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 17:31:19,063 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_77e47744-9098-4a39-8bce-397bf8f2bc12/bin/uautomizer/witness.graphml [2019-12-07 17:31:19,063 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:31:19,064 INFO L168 Benchmark]: Toolchain (without parser) took 36118.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 948.9 MB in the beginning and 1.0 GB in the end (delta: -84.4 MB). Peak memory consumption was 89.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:19,065 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:31:19,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -163.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:19,065 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.86 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. [2019-12-07 17:31:19,065 INFO L168 Benchmark]: Boogie Preprocessor took 25.00 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. [2019-12-07 17:31:19,066 INFO L168 Benchmark]: RCFGBuilder took 403.86 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: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:19,066 INFO L168 Benchmark]: BuchiAutomizer took 35273.93 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 50.9 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 10.1 MB). Peak memory consumption was 245.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:19,066 INFO L168 Benchmark]: Witness Printer took 41.41 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: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:19,068 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 332.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -163.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.86 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 25.00 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 403.86 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: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35273.93 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 50.9 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 10.1 MB). Peak memory consumption was 245.5 MB. Max. memory is 11.5 GB. * Witness Printer took 41.41 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: 2.3 MB). Peak memory consumption was 2.3 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 236 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 34.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 162 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 236 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 367 SDtfs, 803 SDslu, 499 SDs, 0 SdLazy, 72 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 628]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5126} State at position 1 is {NULL=0, retValue_acc=0, NULL=5143, NULL=5128, NULL=0, NULL=5126, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6029114a=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61337939=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f5ee4ca=52, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72bc31d7=0, NULL=5127, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6520d3c2=0, NULL=0, NULL=5145, NULL=5129, NULL=0, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e5394f5=0, tmp___0=0, retValue_acc=1, NULL=0, tmp=0, NULL=5144, NULL=5150, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52be983=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1eb37042=0, tmp___1=0, NULL=5133, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@514cdfe3=0, NULL=5130, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d0eed0f=0, cleanupTimeShifts=4, NULL=5140, NULL=5137, NULL=5147, NULL=5151, tmp=0, tmp___0=1, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, \result=0, tmp___0=0, NULL=0, NULL=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=5148, \result=0, retValue_acc=1, NULL=0, NULL=0, \result=1, NULL=5141, NULL=5142, NULL=5134, tmp___2=52, NULL=5135, tmp=1, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=5132, NULL=5139, tmp___1=0, head=0, tmp=0, NULL=5136, NULL=0, NULL=5131, NULL=0, NULL=5149, NULL=5146, NULL=5138} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L141] int cleanupTimeShifts = 4; [L412] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L686] int pumpRunning = 0; [L687] int systemActive = 1; [L220] int retValue_acc ; [L221] int tmp ; [L899] int retValue_acc ; [L902] retValue_acc = 1 [L903] return (retValue_acc); [L227] tmp = valid_product() [L229] COND TRUE \read(tmp) [L619] int splverifierCounter ; [L620] int tmp ; [L621] int tmp___0 ; [L622] int tmp___1 ; [L623] int tmp___2 ; [L626] splverifierCounter = 0 Loop: [L628] COND TRUE 1 [L630] COND TRUE splverifierCounter < 4 [L636] tmp = __VERIFIER_nondet_int() [L638] COND FALSE !(\read(tmp)) [L646] tmp___0 = __VERIFIER_nondet_int() [L648] COND FALSE !(\read(tmp___0)) [L656] tmp___2 = __VERIFIER_nondet_int() [L658] COND TRUE \read(tmp___2) [L694] COND FALSE !(\read(pumpRunning)) [L701] COND TRUE \read(systemActive) [L723] int tmp ; [L726] COND TRUE ! pumpRunning [L820] int retValue_acc ; [L821] int tmp ; [L822] int tmp___0 ; [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] return (retValue_acc); [L826] tmp = isHighWaterSensorDry() [L828] COND TRUE \read(tmp) [L829] tmp___0 = 0 [L833] retValue_acc = tmp___0 [L834] return (retValue_acc); [L728] tmp = isHighWaterLevel() [L730] COND FALSE !(\read(tmp)) [L840] int tmp ; [L841] int tmp___0 ; [L842] int tmp___1 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L846] tmp = isMethaneLevelCritical() [L848] COND FALSE !(\read(tmp)) [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L852] tmp___0 = getWaterLevel() [L854] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...