./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1ced1a9b-ecbb-4fc9-aca5-d5e5ff388fa8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1ced1a9b-ecbb-4fc9-aca5-d5e5ff388fa8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1ced1a9b-ecbb-4fc9-aca5-d5e5ff388fa8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1ced1a9b-ecbb-4fc9-aca5-d5e5ff388fa8/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1ced1a9b-ecbb-4fc9-aca5-d5e5ff388fa8/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1ced1a9b-ecbb-4fc9-aca5-d5e5ff388fa8/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 3c089be7b4887d2975165f6135c093492cb2095b ............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:00:31,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:31,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:31,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:31,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:31,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:31,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:31,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:31,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:31,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:31,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:31,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:31,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:31,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:31,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:31,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:31,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:31,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:31,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:31,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:31,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:31,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:31,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:31,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:31,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:31,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:31,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:31,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:31,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:31,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:31,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:31,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:31,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:31,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:31,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:31,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:31,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:31,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:31,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:31,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:31,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:31,354 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1ced1a9b-ecbb-4fc9-aca5-d5e5ff388fa8/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 09:00:31,376 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:31,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:31,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:31,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:31,380 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:31,380 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:00:31,381 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:00:31,381 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:00:31,381 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:00:31,381 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:00:31,381 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:00:31,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:31,382 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:31,382 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:00:31,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:31,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:31,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:31,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:00:31,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:00:31,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:00:31,383 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:31,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:31,383 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:00:31,384 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:31,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:00:31,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:31,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:31,384 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:00:31,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:31,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:31,385 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:00:31,386 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:00:31,386 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_1ced1a9b-ecbb-4fc9-aca5-d5e5ff388fa8/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 -> 3c089be7b4887d2975165f6135c093492cb2095b [2019-10-22 09:00:31,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:31,421 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:31,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:31,426 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:31,426 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:31,427 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1ced1a9b-ecbb-4fc9-aca5-d5e5ff388fa8/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c [2019-10-22 09:00:31,474 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1ced1a9b-ecbb-4fc9-aca5-d5e5ff388fa8/bin/uautomizer/data/9eca4b176/3b77d218ab884cef94ab563fb7936084/FLAGc2605d44d [2019-10-22 09:00:31,946 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:31,955 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1ced1a9b-ecbb-4fc9-aca5-d5e5ff388fa8/sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c [2019-10-22 09:00:31,971 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1ced1a9b-ecbb-4fc9-aca5-d5e5ff388fa8/bin/uautomizer/data/9eca4b176/3b77d218ab884cef94ab563fb7936084/FLAGc2605d44d [2019-10-22 09:00:32,447 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1ced1a9b-ecbb-4fc9-aca5-d5e5ff388fa8/bin/uautomizer/data/9eca4b176/3b77d218ab884cef94ab563fb7936084 [2019-10-22 09:00:32,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:32,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:32,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:32,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:32,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:32,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:32" (1/1) ... [2019-10-22 09:00:32,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bef6592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:32, skipping insertion in model container [2019-10-22 09:00:32,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:32" (1/1) ... [2019-10-22 09:00:32,468 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:32,522 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:32,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:32,914 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:33,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:33,046 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:33,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:33 WrapperNode [2019-10-22 09:00:33,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:33,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:33,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:33,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:33,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:33" (1/1) ... [2019-10-22 09:00:33,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:33" (1/1) ... [2019-10-22 09:00:33,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:33,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:33,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:33,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:33,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:33" (1/1) ... [2019-10-22 09:00:33,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:33" (1/1) ... [2019-10-22 09:00:33,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:33" (1/1) ... [2019-10-22 09:00:33,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:33" (1/1) ... [2019-10-22 09:00:33,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:33" (1/1) ... [2019-10-22 09:00:33,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:33" (1/1) ... [2019-10-22 09:00:33,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:33" (1/1) ... [2019-10-22 09:00:33,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:33,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:33,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:33,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:33,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ced1a9b-ecbb-4fc9-aca5-d5e5ff388fa8/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:00:33,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:00:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:00:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:33,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:34,352 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:34,353 INFO L284 CfgBuilder]: Removed 350 assume(true) statements. [2019-10-22 09:00:34,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:34 BoogieIcfgContainer [2019-10-22 09:00:34,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:34,355 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:00:34,355 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:00:34,358 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:00:34,359 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:00:34,359 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:00:32" (1/3) ... [2019-10-22 09:00:34,360 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c3f5f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:00:34, skipping insertion in model container [2019-10-22 09:00:34,361 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:00:34,361 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:33" (2/3) ... [2019-10-22 09:00:34,361 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c3f5f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:00:34, skipping insertion in model container [2019-10-22 09:00:34,361 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:00:34,361 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:34" (3/3) ... [2019-10-22 09:00:34,363 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product62.cil.c [2019-10-22 09:00:34,409 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:00:34,410 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:00:34,410 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:00:34,410 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:34,410 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:34,410 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:00:34,410 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:34,410 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:00:34,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states. [2019-10-22 09:00:34,466 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 145 [2019-10-22 09:00:34,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:34,466 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:34,475 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:34,475 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:34,475 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:00:34,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states. [2019-10-22 09:00:34,483 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 145 [2019-10-22 09:00:34,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:34,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:34,484 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:34,484 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:34,490 INFO L791 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(110, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 7#L-1true havoc main_#res;havoc main_#t~ret63, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 21#L395true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 147#L403true main_#t~ret63 := valid_product_#res;main_~tmp~10 := main_#t~ret63;havoc main_#t~ret63; 212#L856true assume 0 != main_~tmp~10; 121#L833true havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 198#L983-1true [2019-10-22 09:00:34,490 INFO L793 eck$LassoCheckResult]: Loop: 198#L983-1true assume !false; 94#L314true assume test_~splverifierCounter~0 < 4; 150#L315true test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 39#L323true assume !(0 != test_~tmp~6); 41#L323-1true test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 213#L333true assume !(0 != test_~tmp___0~2); 215#L333-1true test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 117#L343true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 8#L351-2true assume !(0 != ~pumpRunning~0); 14#L59true assume !(0 != ~systemActive~0); 104#L66true havoc __utac_acc__Specification1_spec__1_#t~ret74, __utac_acc__Specification1_spec__1_#t~ret75, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 76#L914-5true __utac_acc__Specification1_spec__1_#t~ret74 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret74;havoc __utac_acc__Specification1_spec__1_#t~ret74; 196#L983true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 198#L983-1true [2019-10-22 09:00:34,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:34,496 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 09:00:34,505 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:34,505 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348572962] [2019-10-22 09:00:34,505 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:34,505 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:34,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:35,340 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:35,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:35,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1674172477, now seen corresponding path program 1 times [2019-10-22 09:00:35,342 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:35,343 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292538569] [2019-10-22 09:00:35,343 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:35,343 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:35,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:35,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:35,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292538569] [2019-10-22 09:00:35,424 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:35,424 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:35,424 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703028681] [2019-10-22 09:00:35,431 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:00:35,432 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:35,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:35,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:35,451 INFO L87 Difference]: Start difference. First operand 222 states. Second operand 3 states. [2019-10-22 09:00:35,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:35,527 INFO L93 Difference]: Finished difference Result 222 states and 323 transitions. [2019-10-22 09:00:35,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:35,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 222 states and 323 transitions. [2019-10-22 09:00:35,536 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 143 [2019-10-22 09:00:35,549 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 222 states to 215 states and 315 transitions. [2019-10-22 09:00:35,552 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 215 [2019-10-22 09:00:35,553 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 215 [2019-10-22 09:00:35,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 215 states and 315 transitions. [2019-10-22 09:00:35,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:00:35,556 INFO L688 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2019-10-22 09:00:35,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states and 315 transitions. [2019-10-22 09:00:35,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2019-10-22 09:00:35,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2019-10-22 09:00:35,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 315 transitions. [2019-10-22 09:00:35,597 INFO L711 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2019-10-22 09:00:35,597 INFO L591 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2019-10-22 09:00:35,597 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:00:35,597 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 315 transitions. [2019-10-22 09:00:35,600 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 143 [2019-10-22 09:00:35,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:35,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:35,601 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:35,601 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:35,602 INFO L791 eck$LassoCheckResult]: Stem: 600#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(110, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 460#L-1 havoc main_#res;havoc main_#t~ret63, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 461#L395 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 487#L403 main_#t~ret63 := valid_product_#res;main_~tmp~10 := main_#t~ret63;havoc main_#t~ret63; 644#L856 assume 0 != main_~tmp~10; 621#L833 havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 622#L983-1 [2019-10-22 09:00:35,602 INFO L793 eck$LassoCheckResult]: Loop: 622#L983-1 assume !false; 594#L314 assume test_~splverifierCounter~0 < 4; 595#L315 test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 514#L323 assume !(0 != test_~tmp~6); 516#L323-1 test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 518#L333 assume !(0 != test_~tmp___0~2); 533#L333-1 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 618#L343 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 462#L351-2 assume !(0 != ~pumpRunning~0); 463#L59 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 474#L143 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret1, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 598#L117-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 629#L91-3 assume !(0 == ~pumpRunning~0); 492#L66 havoc __utac_acc__Specification1_spec__1_#t~ret74, __utac_acc__Specification1_spec__1_#t~ret75, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 564#L914-5 __utac_acc__Specification1_spec__1_#t~ret74 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret74;havoc __utac_acc__Specification1_spec__1_#t~ret74; 565#L983 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 622#L983-1 [2019-10-22 09:00:35,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:35,603 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 09:00:35,603 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:35,603 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644191659] [2019-10-22 09:00:35,603 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:35,604 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:35,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:35,952 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:35,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:35,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1243674303, now seen corresponding path program 1 times [2019-10-22 09:00:35,952 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:35,953 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925820909] [2019-10-22 09:00:35,953 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:35,953 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:35,953 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:35,980 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925820909] [2019-10-22 09:00:35,980 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:35,980 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:35,980 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655741800] [2019-10-22 09:00:35,981 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:00:35,981 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:35,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:35,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:35,982 INFO L87 Difference]: Start difference. First operand 215 states and 315 transitions. cyclomatic complexity: 102 Second operand 3 states. [2019-10-22 09:00:36,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:36,131 INFO L93 Difference]: Finished difference Result 211 states and 291 transitions. [2019-10-22 09:00:36,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:36,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 211 states and 291 transitions. [2019-10-22 09:00:36,134 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2019-10-22 09:00:36,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 211 states to 211 states and 291 transitions. [2019-10-22 09:00:36,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2019-10-22 09:00:36,137 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 211 [2019-10-22 09:00:36,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 291 transitions. [2019-10-22 09:00:36,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:00:36,138 INFO L688 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2019-10-22 09:00:36,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 291 transitions. [2019-10-22 09:00:36,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2019-10-22 09:00:36,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2019-10-22 09:00:36,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 291 transitions. [2019-10-22 09:00:36,147 INFO L711 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2019-10-22 09:00:36,147 INFO L591 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2019-10-22 09:00:36,147 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:00:36,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 291 transitions. [2019-10-22 09:00:36,149 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2019-10-22 09:00:36,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:36,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:36,150 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:36,150 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:36,150 INFO L791 eck$LassoCheckResult]: Stem: 1063#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(110, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 934#L-1 havoc main_#res;havoc main_#t~ret63, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 935#L395 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 965#L403 main_#t~ret63 := valid_product_#res;main_~tmp~10 := main_#t~ret63;havoc main_#t~ret63; 977#L856 assume 0 != main_~tmp~10; 913#L833 havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 914#L983-1 [2019-10-22 09:00:36,151 INFO L793 eck$LassoCheckResult]: Loop: 914#L983-1 assume !false; 1084#L314 assume test_~splverifierCounter~0 < 4; 982#L315 test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 983#L323 assume !(0 != test_~tmp~6); 991#L323-1 test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 995#L333 assume !(0 != test_~tmp___0~2); 1008#L333-1 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 903#L343 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 904#L351-2 assume !(0 != ~pumpRunning~0); 937#L59 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 955#L143 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret1, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 932#L117-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 933#L91-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret21, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 906#L954-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 907#L959-3 isHighWaterLevel_#t~ret21 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret21;havoc isHighWaterLevel_#t~ret21; 981#L262-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 992#L262-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 970#L268-3 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 908#L95-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 909#L66 havoc __utac_acc__Specification1_spec__1_#t~ret74, __utac_acc__Specification1_spec__1_#t~ret75, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 1095#L914-5 __utac_acc__Specification1_spec__1_#t~ret74 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret74;havoc __utac_acc__Specification1_spec__1_#t~ret74; 1094#L983 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 914#L983-1 [2019-10-22 09:00:36,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:36,151 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 09:00:36,151 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:36,151 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338045022] [2019-10-22 09:00:36,152 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,152 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:36,399 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:36,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:36,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1113090803, now seen corresponding path program 1 times [2019-10-22 09:00:36,400 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:36,400 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537959356] [2019-10-22 09:00:36,401 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,401 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:36,413 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:36,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:36,414 INFO L82 PathProgramCache]: Analyzing trace with hash 140214323, now seen corresponding path program 1 times [2019-10-22 09:00:36,414 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:36,414 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503108244] [2019-10-22 09:00:36,414 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,414 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:36,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:36,723 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:36,871 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-10-22 09:00:56,686 WARN L191 SmtUtils]: Spent 19.75 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 09:01:07,786 WARN L191 SmtUtils]: Spent 11.10 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 09:01:07,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:01:07 BoogieIcfgContainer [2019-10-22 09:01:07,843 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:01:07,843 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:07,843 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:07,844 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:07,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:34" (3/4) ... [2019-10-22 09:01:07,847 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 09:01:07,898 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1ced1a9b-ecbb-4fc9-aca5-d5e5ff388fa8/bin/uautomizer/witness.graphml [2019-10-22 09:01:07,899 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:07,900 INFO L168 Benchmark]: Toolchain (without parser) took 35449.55 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 250.6 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -118.8 MB). Peak memory consumption was 131.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:07,900 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:07,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 595.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -173.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:07,901 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:07,902 INFO L168 Benchmark]: Boogie Preprocessor took 53.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:07,902 INFO L168 Benchmark]: RCFGBuilder took 1177.25 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: 85.7 MB). Peak memory consumption was 85.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:07,903 INFO L168 Benchmark]: BuchiAutomizer took 33488.30 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 116.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -52.0 MB). Peak memory consumption was 295.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:07,903 INFO L168 Benchmark]: Witness Printer took 55.37 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:07,906 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 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 595.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -173.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.83 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 53.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1177.25 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: 85.7 MB). Peak memory consumption was 85.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 33488.30 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 116.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -52.0 MB). Peak memory consumption was 295.2 MB. Max. memory is 11.5 GB. * Witness Printer took 55.37 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 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 3 locations. The remainder module has 211 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 33.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 32.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 215 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 542 SDtfs, 489 SDslu, 75 SDs, 0 SdLazy, 45 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 313]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2026} State at position 1 is {NULL=0, NULL=0, NULL=-21, NULL=-5, NULL=0, NULL=2026, NULL=-19, NULL=2025, NULL=0, retValue_acc=0, NULL=-7, methaneLevelCritical=0, NULL=-18, tmp___0=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ad87d85=0, NULL=0, retValue_acc=0, tmp=0, NULL=0, tmp___1=0, NULL=0, NULL=0, tmp=0, NULL=-14, cleanupTimeShifts=4, tmp=0, tmp___0=0, retValue_acc=0, NULL=-6, NULL=-20, tmp=1, NULL=0, systemActive=1, waterLevel=1, NULL=-23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b03a7e2=0, NULL=0, NULL=-9, NULL=0, NULL=0, NULL=-4, \result=0, NULL=0, NULL=-16, NULL=0, NULL=-11, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=-17, head=0, pumpRunning=0, NULL=-1, NULL=-8, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8736072=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@440d8fe=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2571f1b7=55, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6248ee80=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@204737d0=0, NULL=0, NULL=0, retValue_acc=1, \result=1, NULL=-24, NULL=-2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e77950e=0, NULL=0, tmp=1, NULL=0, retValue_acc=1, tmp___2=55, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, NULL=-22, NULL=-15, NULL=-10, tmp=0, head=0, tmp=0, NULL=0, NULL=-13, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1145dc34=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f87e04f=0, NULL=0, NULL=-12, NULL=-3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67ac40c5=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L577] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L774] int cleanupTimeShifts = 4; [L871] int waterLevel = 1; [L872] int methaneLevelCritical = 0; [L847] int retValue_acc ; [L848] int tmp ; [L399] int retValue_acc ; [L402] retValue_acc = 1 [L403] return (retValue_acc); [L854] tmp = valid_product() [L856] COND TRUE \read(tmp) [L304] int splverifierCounter ; [L305] int tmp ; [L306] int tmp___0 ; [L307] int tmp___1 ; [L308] int tmp___2 ; [L311] splverifierCounter = 0 Loop: [L313] COND TRUE 1 [L315] COND TRUE splverifierCounter < 4 [L321] tmp = __VERIFIER_nondet_int() [L323] COND FALSE !(\read(tmp)) [L331] tmp___0 = __VERIFIER_nondet_int() [L333] COND FALSE !(\read(tmp___0)) [L341] tmp___2 = __VERIFIER_nondet_int() [L343] COND TRUE \read(tmp___2) [L295] systemActive = 1 [L59] COND FALSE !(\read(pumpRunning)) [L66] COND TRUE \read(systemActive) [L140] int tmp ; [L143] COND FALSE !(\read(pumpRunning)) [L114] int tmp ; [L117] COND FALSE !(\read(pumpRunning)) [L88] int tmp ; [L91] COND TRUE ! pumpRunning [L254] int retValue_acc ; [L255] int tmp ; [L256] int tmp___0 ; [L951] int retValue_acc ; [L954] COND TRUE waterLevel < 2 [L955] retValue_acc = 1 [L956] return (retValue_acc); [L260] tmp = isHighWaterSensorDry() [L262] COND TRUE \read(tmp) [L263] tmp___0 = 0 [L267] retValue_acc = tmp___0 [L268] return (retValue_acc); [L93] tmp = isHighWaterLevel() [L95] COND FALSE !(\read(tmp)) [L976] int tmp ; [L977] int tmp___0 ; [L910] int retValue_acc ; [L913] retValue_acc = methaneLevelCritical [L914] return (retValue_acc); [L981] tmp = isMethaneLevelCritical() [L983] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...