./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product64.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_37366a5a-1e71-455b-b7cc-f93393083c87/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_37366a5a-1e71-455b-b7cc-f93393083c87/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_37366a5a-1e71-455b-b7cc-f93393083c87/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_37366a5a-1e71-455b-b7cc-f93393083c87/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_37366a5a-1e71-455b-b7cc-f93393083c87/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_37366a5a-1e71-455b-b7cc-f93393083c87/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 4db9bf450928b08b5e696709772fc7741fcab5a5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:59:41,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:59:41,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:59:41,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:59:41,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:59:41,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:59:41,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:59:41,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:59:41,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:59:41,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:59:41,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:59:41,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:59:41,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:59:41,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:59:41,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:59:41,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:59:41,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:59:41,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:59:41,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:59:41,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:59:41,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:59:41,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:59:41,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:59:41,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:59:41,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:59:41,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:59:41,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:59:41,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:59:41,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:59:41,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:59:41,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:59:41,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:59:41,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:59:41,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:59:41,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:59:41,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:59:41,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:59:41,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:59:41,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:59:41,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:59:41,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:59:41,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_37366a5a-1e71-455b-b7cc-f93393083c87/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:59:41,534 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:59:41,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:59:41,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:59:41,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:59:41,535 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:59:41,535 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:59:41,535 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:59:41,536 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:59:41,536 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:59:41,536 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:59:41,536 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:59:41,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:59:41,536 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:59:41,536 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:59:41,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:59:41,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:59:41,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:59:41,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:59:41,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:59:41,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:59:41,537 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:59:41,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:59:41,538 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:59:41,538 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:59:41,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:59:41,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:59:41,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:59:41,538 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:59:41,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:59:41,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:59:41,539 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:59:41,541 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:59:41,542 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_37366a5a-1e71-455b-b7cc-f93393083c87/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 -> 4db9bf450928b08b5e696709772fc7741fcab5a5 [2019-10-22 08:59:41,573 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:59:41,585 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:59:41,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:59:41,589 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:59:41,589 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:59:41,590 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_37366a5a-1e71-455b-b7cc-f93393083c87/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2019-10-22 08:59:41,636 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_37366a5a-1e71-455b-b7cc-f93393083c87/bin/uautomizer/data/007726aaa/8ddec4c98fa343c7ad6328c41cd03e2c/FLAG9ac14a99a [2019-10-22 08:59:42,098 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:59:42,101 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_37366a5a-1e71-455b-b7cc-f93393083c87/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2019-10-22 08:59:42,115 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_37366a5a-1e71-455b-b7cc-f93393083c87/bin/uautomizer/data/007726aaa/8ddec4c98fa343c7ad6328c41cd03e2c/FLAG9ac14a99a [2019-10-22 08:59:42,635 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_37366a5a-1e71-455b-b7cc-f93393083c87/bin/uautomizer/data/007726aaa/8ddec4c98fa343c7ad6328c41cd03e2c [2019-10-22 08:59:42,639 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:59:42,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:59:42,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:42,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:59:42,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:59:42,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:42" (1/1) ... [2019-10-22 08:59:42,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20dc735c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:42, skipping insertion in model container [2019-10-22 08:59:42,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:42" (1/1) ... [2019-10-22 08:59:42,657 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:59:42,706 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:59:43,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:43,082 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:59:43,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:43,209 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:59:43,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:43 WrapperNode [2019-10-22 08:59:43,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:43,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:43,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:59:43,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:59:43,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:43" (1/1) ... [2019-10-22 08:59:43,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:43" (1/1) ... [2019-10-22 08:59:43,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:43,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:59:43,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:59:43,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:59:43,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:43" (1/1) ... [2019-10-22 08:59:43,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:43" (1/1) ... [2019-10-22 08:59:43,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:43" (1/1) ... [2019-10-22 08:59:43,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:43" (1/1) ... [2019-10-22 08:59:43,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:43" (1/1) ... [2019-10-22 08:59:43,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:43" (1/1) ... [2019-10-22 08:59:43,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:43" (1/1) ... [2019-10-22 08:59:43,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:59:43,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:59:43,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:59:43,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:59:43,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37366a5a-1e71-455b-b7cc-f93393083c87/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:59:43,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:59:43,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:59:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:59:43,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:59:44,547 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:59:44,548 INFO L284 CfgBuilder]: Removed 354 assume(true) statements. [2019-10-22 08:59:44,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:44 BoogieIcfgContainer [2019-10-22 08:59:44,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:59:44,553 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:59:44,553 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:59:44,555 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:59:44,556 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:44,556 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:59:42" (1/3) ... [2019-10-22 08:59:44,557 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6182ad18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:59:44, skipping insertion in model container [2019-10-22 08:59:44,557 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:44,557 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:43" (2/3) ... [2019-10-22 08:59:44,558 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6182ad18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:59:44, skipping insertion in model container [2019-10-22 08:59:44,558 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:44,558 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:44" (3/3) ... [2019-10-22 08:59:44,559 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product64.cil.c [2019-10-22 08:59:44,604 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:59:44,604 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:59:44,604 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:59:44,604 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:59:44,604 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:59:44,604 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:59:44,604 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:59:44,605 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:59:44,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states. [2019-10-22 08:59:44,659 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2019-10-22 08:59:44,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:44,662 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:44,671 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:59:44,672 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:44,672 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:59:44,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states. [2019-10-22 08:59:44,689 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2019-10-22 08:59:44,689 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:44,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:44,690 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:59:44,690 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:44,697 INFO L791 eck$LassoCheckResult]: Stem: 65#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1); 3#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 64#L1013true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 185#L1021true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 57#L130true assume 0 != main_~tmp~0; 11#L103true havoc test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 58#L163-1true [2019-10-22 08:59:44,697 INFO L793 eck$LassoCheckResult]: Loop: 58#L163-1true assume !false; 130#L194true assume test_~splverifierCounter~0 < 4; 200#L195true test_~tmp~2 := test_#t~nondet3;havoc test_#t~nondet3; 87#L203true assume !(0 != test_~tmp~2); 85#L203-1true test_~tmp___0~1 := test_#t~nondet4;havoc test_#t~nondet4; 36#L213true assume !(0 != test_~tmp___0~1); 16#L213-1true test_~tmp___2~0 := test_#t~nondet5;havoc test_#t~nondet5; 184#L223true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 62#L231-1true assume !(0 != ~pumpRunning~0); 112#L266true assume !(0 != ~systemActive~0); 46#L273true havoc __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_#t~ret2, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 67#L963true __utac_acc__Specification4_spec__1_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret1;havoc __utac_acc__Specification4_spec__1_#t~ret1; 60#L163true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 58#L163-1true [2019-10-22 08:59:44,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:44,711 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 08:59:44,720 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:44,720 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623057186] [2019-10-22 08:59:44,721 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:44,721 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:44,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:45,399 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:45,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:45,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1665583732, now seen corresponding path program 1 times [2019-10-22 08:59:45,401 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:45,402 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702142102] [2019-10-22 08:59:45,402 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:45,402 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:45,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:45,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:45,461 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702142102] [2019-10-22 08:59:45,462 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:45,462 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:59:45,463 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156870269] [2019-10-22 08:59:45,468 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:59:45,469 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:45,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:59:45,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:59:45,487 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 3 states. [2019-10-22 08:59:45,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:45,604 INFO L93 Difference]: Finished difference Result 442 states and 648 transitions. [2019-10-22 08:59:45,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:59:45,609 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 442 states and 648 transitions. [2019-10-22 08:59:45,624 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 290 [2019-10-22 08:59:45,639 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 442 states to 428 states and 633 transitions. [2019-10-22 08:59:45,643 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 428 [2019-10-22 08:59:45,645 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 428 [2019-10-22 08:59:45,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 428 states and 633 transitions. [2019-10-22 08:59:45,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:59:45,652 INFO L688 BuchiCegarLoop]: Abstraction has 428 states and 633 transitions. [2019-10-22 08:59:45,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states and 633 transitions. [2019-10-22 08:59:45,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 426. [2019-10-22 08:59:45,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2019-10-22 08:59:45,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 630 transitions. [2019-10-22 08:59:45,705 INFO L711 BuchiCegarLoop]: Abstraction has 426 states and 630 transitions. [2019-10-22 08:59:45,706 INFO L591 BuchiCegarLoop]: Abstraction has 426 states and 630 transitions. [2019-10-22 08:59:45,706 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:59:45,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 426 states and 630 transitions. [2019-10-22 08:59:45,710 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 288 [2019-10-22 08:59:45,711 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:45,711 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:45,711 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:59:45,712 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:45,712 INFO L791 eck$LassoCheckResult]: Stem: 782#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1); 675#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 676#L1013 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 781#L1021 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 769#L130 assume 0 != main_~tmp~0; 690#L103 havoc test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 691#L163-1 [2019-10-22 08:59:45,712 INFO L793 eck$LassoCheckResult]: Loop: 691#L163-1 assume !false; 770#L194 assume test_~splverifierCounter~0 < 4; 918#L195 test_~tmp~2 := test_#t~nondet3;havoc test_#t~nondet3; 815#L203 assume !(0 != test_~tmp~2); 812#L203-1 test_~tmp___0~1 := test_#t~nondet4;havoc test_#t~nondet4; 733#L213 assume !(0 != test_~tmp___0~1); 695#L213-1 test_~tmp___2~0 := test_#t~nondet5;havoc test_#t~nondet5; 700#L223 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 904#L231-1 assume !(0 != ~pumpRunning~0); 850#L266 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 752#L350 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 754#L324-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 801#L298-3 assume !(0 == ~pumpRunning~0); 748#L273 havoc __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_#t~ret2, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 749#L963 __utac_acc__Specification4_spec__1_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret1;havoc __utac_acc__Specification4_spec__1_#t~ret1; 773#L163 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 691#L163-1 [2019-10-22 08:59:45,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:45,713 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 08:59:45,713 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:45,713 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046139956] [2019-10-22 08:59:45,713 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:45,714 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:45,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:45,930 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:45,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:45,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1220566465, now seen corresponding path program 1 times [2019-10-22 08:59:45,931 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:45,931 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577374409] [2019-10-22 08:59:45,932 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:45,932 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:45,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:45,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:45,958 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577374409] [2019-10-22 08:59:45,959 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:45,959 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:59:45,959 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045112150] [2019-10-22 08:59:45,960 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:59:45,960 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:45,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:59:45,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:59:45,961 INFO L87 Difference]: Start difference. First operand 426 states and 630 transitions. cyclomatic complexity: 207 Second operand 3 states. [2019-10-22 08:59:46,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:46,113 INFO L93 Difference]: Finished difference Result 419 states and 586 transitions. [2019-10-22 08:59:46,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:59:46,114 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 419 states and 586 transitions. [2019-10-22 08:59:46,118 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 291 [2019-10-22 08:59:46,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 419 states to 419 states and 586 transitions. [2019-10-22 08:59:46,121 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 419 [2019-10-22 08:59:46,122 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 419 [2019-10-22 08:59:46,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 419 states and 586 transitions. [2019-10-22 08:59:46,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:59:46,124 INFO L688 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2019-10-22 08:59:46,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states and 586 transitions. [2019-10-22 08:59:46,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2019-10-22 08:59:46,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2019-10-22 08:59:46,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 586 transitions. [2019-10-22 08:59:46,138 INFO L711 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2019-10-22 08:59:46,138 INFO L591 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2019-10-22 08:59:46,139 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:59:46,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 419 states and 586 transitions. [2019-10-22 08:59:46,142 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 291 [2019-10-22 08:59:46,142 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:46,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:46,143 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:59:46,143 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 08:59:46,143 INFO L791 eck$LassoCheckResult]: Stem: 1691#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1); 1556#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1557#L1013 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1690#L1021 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1679#L130 assume 0 != main_~tmp~0; 1574#L103 havoc test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1575#L163-1 [2019-10-22 08:59:46,143 INFO L793 eck$LassoCheckResult]: Loop: 1575#L163-1 assume !false; 1755#L194 assume test_~splverifierCounter~0 < 4; 1712#L195 test_~tmp~2 := test_#t~nondet3;havoc test_#t~nondet3; 1713#L203 assume !(0 != test_~tmp~2); 1724#L203-1 test_~tmp___0~1 := test_#t~nondet4;havoc test_#t~nondet4; 1725#L213 assume !(0 != test_~tmp___0~1); 1584#L213-1 test_~tmp___2~0 := test_#t~nondet5;havoc test_#t~nondet5; 1585#L223 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1687#L231-1 assume !(0 != ~pumpRunning~0); 1688#L266 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1813#L350 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1717#L324-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 1617#L298-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret28, isHighWaterLevel_~retValue_acc~3, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~3;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 1618#L971-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 1534#L976-3 isHighWaterLevel_#t~ret28 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret28;havoc isHighWaterLevel_#t~ret28; 1535#L469-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 1576#L469-11 isHighWaterLevel_~retValue_acc~3 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~3; 1532#L475-3 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 1533#L302-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 1775#L273 havoc __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_#t~ret2, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 1774#L963 __utac_acc__Specification4_spec__1_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret1;havoc __utac_acc__Specification4_spec__1_#t~ret1; 1772#L163 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 1575#L163-1 [2019-10-22 08:59:46,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:46,144 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 08:59:46,144 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:46,144 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549005612] [2019-10-22 08:59:46,144 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:46,145 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:46,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:46,386 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:46,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:46,387 INFO L82 PathProgramCache]: Analyzing trace with hash -231328531, now seen corresponding path program 1 times [2019-10-22 08:59:46,387 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:46,388 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608326723] [2019-10-22 08:59:46,388 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:46,388 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:46,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:46,407 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:46,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:46,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1021976595, now seen corresponding path program 1 times [2019-10-22 08:59:46,408 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:46,408 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698160903] [2019-10-22 08:59:46,409 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:46,409 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:46,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:46,728 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:05,189 WARN L191 SmtUtils]: Spent 18.30 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 09:00:16,230 WARN L191 SmtUtils]: Spent 11.04 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 09:00:16,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:00:16 BoogieIcfgContainer [2019-10-22 09:00:16,296 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:00:16,296 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:16,296 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:16,296 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:16,297 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:44" (3/4) ... [2019-10-22 09:00:16,301 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 09:00:16,354 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_37366a5a-1e71-455b-b7cc-f93393083c87/bin/uautomizer/witness.graphml [2019-10-22 09:00:16,355 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:16,356 INFO L168 Benchmark]: Toolchain (without parser) took 33715.20 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 366.5 MB). Free memory was 943.3 MB in the beginning and 1.3 GB in the end (delta: -385.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:16,357 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:16,357 INFO L168 Benchmark]: CACSL2BoogieTranslator took 567.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -198.7 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:16,357 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:16,358 INFO L168 Benchmark]: Boogie Preprocessor took 54.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:16,358 INFO L168 Benchmark]: RCFGBuilder took 1208.41 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: 84.5 MB). Peak memory consumption was 84.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:16,359 INFO L168 Benchmark]: BuchiAutomizer took 31743.16 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 202.4 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -287.4 MB). Peak memory consumption was 349.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:16,359 INFO L168 Benchmark]: Witness Printer took 58.68 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:16,362 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 567.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -198.7 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1208.41 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: 84.5 MB). Peak memory consumption was 84.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 31743.16 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 202.4 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -287.4 MB). Peak memory consumption was 349.8 MB. Max. memory is 11.5 GB. * Witness Printer took 58.68 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 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 419 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 31.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 31.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 426 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 553 SDtfs, 496 SDslu, 392 SDs, 0 SdLazy, 53 SolverSat, 38 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: 193]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=23016} State at position 1 is {NULL=-21, NULL=0, NULL=0, retValue_acc=0, NULL=23016, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7dd8c40b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c47c6cf=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f86fe30=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15389e67=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1566c655=0, NULL=0, NULL=0, NULL=-14, retValue_acc=1, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3307d60c=0, tmp___0=0, tmp=0, retValue_acc=0, NULL=0, NULL=0, NULL=-10, tmp___1=0, NULL=-15, tmp___0=0, tmp=0, cleanupTimeShifts=4, NULL=-11, NULL=-2, NULL=19670, NULL=12996, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51851b9d=0, NULL=0, systemActive=1, waterLevel=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2310688b=0, NULL=5872, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@781499b2=0, \result=0, NULL=0, NULL=0, NULL=-6, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp=1, NULL=-17, NULL=-5, \result=0, NULL=-3, NULL=-13, NULL=-4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c13ef4e=0, NULL=0, NULL=-9, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=23015, NULL=-20, tmp=1, NULL=0, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a1e82d8=0, tmp=1, tmp___2=56, tmp___0=0, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=-19, NULL=-7, head=0, tmp=0, NULL=-16, NULL=-18, NULL=0, NULL=-8, NULL=-12, NULL=0, NULL=-1, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L259] int pumpRunning = 0; [L260] int systemActive = 1; [L691] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L1017] int retValue_acc ; [L1020] retValue_acc = 1 [L1021] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L184] int splverifierCounter ; [L185] int tmp ; [L186] int tmp___0 ; [L187] int tmp___1 ; [L188] int tmp___2 ; [L191] splverifierCounter = 0 Loop: [L193] COND TRUE 1 [L195] COND TRUE splverifierCounter < 4 [L201] tmp = __VERIFIER_nondet_int() [L203] COND FALSE !(\read(tmp)) [L211] tmp___0 = __VERIFIER_nondet_int() [L213] COND FALSE !(\read(tmp___0)) [L221] tmp___2 = __VERIFIER_nondet_int() [L223] COND TRUE \read(tmp___2) [L517] systemActive = 1 [L266] COND FALSE !(\read(pumpRunning)) [L273] COND TRUE \read(systemActive) [L347] int tmp ; [L350] COND FALSE !(\read(pumpRunning)) [L321] int tmp ; [L324] COND FALSE !(\read(pumpRunning)) [L295] int tmp ; [L298] COND TRUE ! pumpRunning [L461] int retValue_acc ; [L462] int tmp ; [L463] int tmp___0 ; [L968] int retValue_acc ; [L971] COND TRUE waterLevel < 2 [L972] retValue_acc = 1 [L973] return (retValue_acc); [L467] tmp = isHighWaterSensorDry() [L469] COND TRUE \read(tmp) [L470] tmp___0 = 0 [L474] retValue_acc = tmp___0 [L475] return (retValue_acc); [L300] tmp = isHighWaterLevel() [L302] COND FALSE !(\read(tmp)) [L156] int tmp ; [L157] int tmp___0 ; [L959] int retValue_acc ; [L962] retValue_acc = waterLevel [L963] return (retValue_acc); [L161] tmp = getWaterLevel() [L163] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...