./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product43.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_d36e55e8-abb3-460f-b3a9-31c299fb1f1c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d36e55e8-abb3-460f-b3a9-31c299fb1f1c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d36e55e8-abb3-460f-b3a9-31c299fb1f1c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d36e55e8-abb3-460f-b3a9-31c299fb1f1c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d36e55e8-abb3-460f-b3a9-31c299fb1f1c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d36e55e8-abb3-460f-b3a9-31c299fb1f1c/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 437b76c0cd9dd6f0417f690a0c81e41159d0829e ................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 09:00:54,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:54,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:54,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:54,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:54,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:54,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:54,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:54,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:54,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:54,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:54,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:54,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:54,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:54,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:54,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:54,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:54,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:54,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:54,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:54,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:54,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:54,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:54,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:54,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:54,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:54,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:54,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:54,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:54,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:54,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:54,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:54,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:54,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:54,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:54,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:54,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:54,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:54,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:54,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:54,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:54,385 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d36e55e8-abb3-460f-b3a9-31c299fb1f1c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 09:00:54,399 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:54,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:54,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:54,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:54,401 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:54,401 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:00:54,402 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:00:54,402 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:00:54,402 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:00:54,402 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:00:54,403 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:00:54,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:54,403 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:54,403 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:00:54,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:54,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:54,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:54,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:00:54,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:00:54,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:00:54,404 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:54,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:54,405 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:00:54,405 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:54,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:00:54,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:54,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:54,405 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:00:54,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:54,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:54,406 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:00:54,407 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:00:54,407 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_d36e55e8-abb3-460f-b3a9-31c299fb1f1c/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 -> 437b76c0cd9dd6f0417f690a0c81e41159d0829e [2019-10-22 09:00:54,433 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:54,444 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:54,447 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:54,448 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:54,449 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:54,450 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d36e55e8-abb3-460f-b3a9-31c299fb1f1c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2019-10-22 09:00:54,517 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d36e55e8-abb3-460f-b3a9-31c299fb1f1c/bin/uautomizer/data/cfd6b1182/b3aa69fcc99b4af2a2bdf9e68832a13f/FLAG378160208 [2019-10-22 09:00:55,002 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:55,003 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d36e55e8-abb3-460f-b3a9-31c299fb1f1c/sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2019-10-22 09:00:55,018 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d36e55e8-abb3-460f-b3a9-31c299fb1f1c/bin/uautomizer/data/cfd6b1182/b3aa69fcc99b4af2a2bdf9e68832a13f/FLAG378160208 [2019-10-22 09:00:55,245 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d36e55e8-abb3-460f-b3a9-31c299fb1f1c/bin/uautomizer/data/cfd6b1182/b3aa69fcc99b4af2a2bdf9e68832a13f [2019-10-22 09:00:55,247 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:55,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:55,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:55,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:55,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:55,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:55,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54ee572a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55, skipping insertion in model container [2019-10-22 09:00:55,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:55,265 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:55,318 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:55,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:55,711 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:55,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:55,828 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:55,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55 WrapperNode [2019-10-22 09:00:55,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:55,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:55,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:55,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:55,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:55,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:55,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:55,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:55,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:55,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:55,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:55,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:55,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:55,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:55,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:55,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:55,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:55,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:55,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:55,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:55,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:55,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d36e55e8-abb3-460f-b3a9-31c299fb1f1c/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 09:00:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:00:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:00:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:56,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:56,836 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:56,836 INFO L284 CfgBuilder]: Removed 118 assume(true) statements. [2019-10-22 09:00:56,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:56 BoogieIcfgContainer [2019-10-22 09:00:56,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:56,840 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:00:56,840 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:00:56,844 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:00:56,845 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:00:56,845 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:00:55" (1/3) ... [2019-10-22 09:00:56,846 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3abed4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:00:56, skipping insertion in model container [2019-10-22 09:00:56,847 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:00:56,848 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (2/3) ... [2019-10-22 09:00:56,848 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3abed4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:00:56, skipping insertion in model container [2019-10-22 09:00:56,849 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:00:56,849 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:56" (3/3) ... [2019-10-22 09:00:56,851 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product43.cil.c [2019-10-22 09:00:56,908 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:00:56,908 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:00:56,908 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:00:56,908 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:56,908 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:56,909 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:00:56,909 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:56,909 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:00:56,936 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-10-22 09:00:56,967 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2019-10-22 09:00:56,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:56,967 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:56,978 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:56,978 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:56,978 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:00:56,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-10-22 09:00:56,983 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2019-10-22 09:00:56,984 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:56,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:56,984 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:56,985 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:56,989 INFO L791 eck$LassoCheckResult]: Stem: 50#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.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(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25); 14#L-1true havoc main_#res;havoc main_#t~ret24, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 51#L531true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 70#L539true main_#t~ret24 := valid_product_#res;main_~tmp~4 := main_#t~ret24;havoc main_#t~ret24; 72#L400true assume 0 != main_~tmp~4; 63#L374true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 43#L918-1true [2019-10-22 09:00:56,990 INFO L793 eck$LassoCheckResult]: Loop: 43#L918-1true assume !false; 71#L56true assume test_~splverifierCounter~0 < 4; 88#L57true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 22#L65true assume !(0 != test_~tmp~0); 18#L65-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 84#L75true assume !(0 != test_~tmp___0~0); 82#L75-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 67#L85true assume 0 != test_~tmp___2~0; 4#L91-1true assume !(0 != ~pumpRunning~0); 52#L128true assume !(0 != ~systemActive~0); 9#L135true havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 45#L490true __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; 41#L918true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 43#L918-1true [2019-10-22 09:00:56,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:56,996 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 09:00:57,005 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:57,005 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287738595] [2019-10-22 09:00:57,005 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:57,006 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:57,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:57,764 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:57,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:57,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1672602485, now seen corresponding path program 1 times [2019-10-22 09:00:57,766 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:57,766 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138661977] [2019-10-22 09:00:57,767 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:57,767 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:57,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:57,788 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:57,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:57,790 INFO L82 PathProgramCache]: Analyzing trace with hash 41676453, now seen corresponding path program 1 times [2019-10-22 09:00:57,790 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:57,790 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158495017] [2019-10-22 09:00:57,790 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:57,791 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:57,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:57,947 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 09:00:57,948 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158495017] [2019-10-22 09:00:57,948 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:57,949 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:00:57,949 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186016800] [2019-10-22 09:00:58,053 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:58,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:00:58,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:58,070 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 6 states. [2019-10-22 09:00:58,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:58,254 INFO L93 Difference]: Finished difference Result 216 states and 300 transitions. [2019-10-22 09:00:58,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:58,263 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 216 states and 300 transitions. [2019-10-22 09:00:58,279 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 137 [2019-10-22 09:00:58,294 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 216 states to 195 states and 279 transitions. [2019-10-22 09:00:58,295 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2019-10-22 09:00:58,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2019-10-22 09:00:58,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 279 transitions. [2019-10-22 09:00:58,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:00:58,298 INFO L688 BuchiCegarLoop]: Abstraction has 195 states and 279 transitions. [2019-10-22 09:00:58,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 279 transitions. [2019-10-22 09:00:58,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 120. [2019-10-22 09:00:58,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-10-22 09:00:58,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 171 transitions. [2019-10-22 09:00:58,369 INFO L711 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2019-10-22 09:00:58,369 INFO L591 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2019-10-22 09:00:58,369 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:00:58,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 171 transitions. [2019-10-22 09:00:58,378 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2019-10-22 09:00:58,378 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:58,378 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:58,379 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:58,379 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:58,379 INFO L791 eck$LassoCheckResult]: Stem: 377#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.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(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25); 336#L-1 havoc main_#res;havoc main_#t~ret24, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 337#L531 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 378#L539 main_#t~ret24 := valid_product_#res;main_~tmp~4 := main_#t~ret24;havoc main_#t~ret24; 393#L400 assume 0 != main_~tmp~4; 388#L374 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 371#L918-1 [2019-10-22 09:00:58,380 INFO L793 eck$LassoCheckResult]: Loop: 371#L918-1 assume !false; 372#L56 assume test_~splverifierCounter~0 < 4; 394#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 348#L65 assume !(0 != test_~tmp~0); 342#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 343#L75 assume !(0 != test_~tmp___0~0); 397#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 392#L85 assume 0 != test_~tmp___2~0; 320#L91-1 assume !(0 != ~pumpRunning~0); 322#L128 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 345#L160 assume !(0 == ~pumpRunning~0); 326#L135 havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 331#L490 __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; 370#L918 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 371#L918-1 [2019-10-22 09:00:58,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:58,380 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 09:00:58,384 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:58,384 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359996015] [2019-10-22 09:00:58,385 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:58,385 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:58,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:58,738 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:58,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:58,739 INFO L82 PathProgramCache]: Analyzing trace with hash -352838725, now seen corresponding path program 1 times [2019-10-22 09:00:58,739 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:58,739 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041942786] [2019-10-22 09:00:58,739 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:58,739 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:58,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:58,751 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 09:00:58,751 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041942786] [2019-10-22 09:00:58,751 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:58,752 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:58,752 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680671098] [2019-10-22 09:00:58,752 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:00:58,753 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:58,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:58,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:58,753 INFO L87 Difference]: Start difference. First operand 120 states and 171 transitions. cyclomatic complexity: 54 Second operand 3 states. [2019-10-22 09:00:58,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:58,832 INFO L93 Difference]: Finished difference Result 159 states and 214 transitions. [2019-10-22 09:00:58,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:58,833 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 214 transitions. [2019-10-22 09:00:58,837 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2019-10-22 09:00:58,846 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 159 states and 214 transitions. [2019-10-22 09:00:58,846 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2019-10-22 09:00:58,847 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2019-10-22 09:00:58,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 214 transitions. [2019-10-22 09:00:58,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:00:58,848 INFO L688 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2019-10-22 09:00:58,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 214 transitions. [2019-10-22 09:00:58,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2019-10-22 09:00:58,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-10-22 09:00:58,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 214 transitions. [2019-10-22 09:00:58,867 INFO L711 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2019-10-22 09:00:58,867 INFO L591 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2019-10-22 09:00:58,867 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:00:58,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 214 transitions. [2019-10-22 09:00:58,869 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2019-10-22 09:00:58,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:58,870 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:58,875 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:00:58,876 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:58,876 INFO L791 eck$LassoCheckResult]: Stem: 678#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.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(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25); 626#L-1 havoc main_#res;havoc main_#t~ret24, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 627#L531 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 679#L539 main_#t~ret24 := valid_product_#res;main_~tmp~4 := main_#t~ret24;havoc main_#t~ret24; 699#L400 assume 0 != main_~tmp~4; 692#L374 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 664#L918-1 [2019-10-22 09:00:58,877 INFO L793 eck$LassoCheckResult]: Loop: 664#L918-1 assume !false; 747#L56 assume test_~splverifierCounter~0 < 4; 707#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 708#L65 assume !(0 != test_~tmp~0); 630#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 631#L75 assume !(0 != test_~tmp___0~0); 750#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 696#L85 assume 0 != test_~tmp___2~0; 605#L91-1 assume !(0 != ~pumpRunning~0); 606#L128 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 632#L160 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret23, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 633#L498 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 681#L503 isHighWaterLevel_#t~ret23 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret23;havoc isHighWaterLevel_#t~ret23; 700#L280 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 706#L280-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 669#L286 processEnvironment_#t~ret4 := isHighWaterLevel_#res;processEnvironment_~tmp~1 := processEnvironment_#t~ret4;havoc processEnvironment_#t~ret4; 649#L164 assume !(0 != processEnvironment_~tmp~1); 608#L135 havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 670#L490 __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; 662#L918 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 664#L918-1 [2019-10-22 09:00:58,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:58,877 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 09:00:58,877 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:58,877 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605514950] [2019-10-22 09:00:58,878 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:58,878 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:58,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:59,200 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:59,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:59,201 INFO L82 PathProgramCache]: Analyzing trace with hash -539212889, now seen corresponding path program 1 times [2019-10-22 09:00:59,201 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:59,201 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224981392] [2019-10-22 09:00:59,201 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:59,201 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:59,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:59,213 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:59,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:59,213 INFO L82 PathProgramCache]: Analyzing trace with hash -524500915, now seen corresponding path program 1 times [2019-10-22 09:00:59,214 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:59,214 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322110754] [2019-10-22 09:00:59,214 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:59,214 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:59,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:59,514 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:59,635 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-10-22 09:01:24,074 WARN L191 SmtUtils]: Spent 24.37 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 09:01:34,486 WARN L191 SmtUtils]: Spent 10.41 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 09:01:34,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:01:34 BoogieIcfgContainer [2019-10-22 09:01:34,562 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:01:34,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:34,563 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:34,563 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:34,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:56" (3/4) ... [2019-10-22 09:01:34,569 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 09:01:34,638 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d36e55e8-abb3-460f-b3a9-31c299fb1f1c/bin/uautomizer/witness.graphml [2019-10-22 09:01:34,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:34,640 INFO L168 Benchmark]: Toolchain (without parser) took 39391.52 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 381.2 MB). Free memory was 936.9 MB in the beginning and 1.3 GB in the end (delta: -391.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:34,640 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 957.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:34,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 935.6 MB in the beginning and 1.2 GB in the end (delta: -221.4 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:34,641 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:34,642 INFO L168 Benchmark]: Boogie Preprocessor took 66.46 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:34,642 INFO L168 Benchmark]: RCFGBuilder took 846.67 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: 61.9 MB). Peak memory consumption was 61.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:34,652 INFO L168 Benchmark]: BuchiAutomizer took 37722.21 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 209.2 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -261.1 MB). Peak memory consumption was 395.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:34,652 INFO L168 Benchmark]: Witness Printer took 76.19 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: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:34,654 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 957.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 579.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 935.6 MB in the beginning and 1.2 GB in the end (delta: -221.4 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.46 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 846.67 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: 61.9 MB). Peak memory consumption was 61.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 37722.21 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 209.2 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -261.1 MB). Peak memory consumption was 395.4 MB. Max. memory is 11.5 GB. * Witness Printer took 76.19 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: 14.4 MB). Peak memory consumption was 14.4 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 6 locations. The remainder module has 159 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 37.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 37.0s. 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, 75 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 159 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 227 SDtfs, 537 SDslu, 626 SDs, 0 SdLazy, 64 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 55]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=469} State at position 1 is {NULL=0, NULL=0, NULL=-27, NULL=-18, NULL=0, NULL=469, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b5cbaae=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@498a640b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2487657b=62, NULL=-12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a15abb2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@297e11af=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f50284e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f3e470f=0, NULL=-17, NULL=-4, methaneLevelCritical=0, NULL=-23, tmp___0=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=-1, NULL=0, tmp___1=0, NULL=0, NULL=-24, NULL=-2, cleanupTimeShifts=4, tmp=0, NULL=468, NULL=-13, tmp___0=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=-9, NULL=0, NULL=-11, \result=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e59814a=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=-8, head=0, pumpRunning=0, NULL=-19, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1781a1b=0, tmp=1, NULL=-22, NULL=0, NULL=0, NULL=0, \result=1, NULL=-6, NULL=-7, retValue_acc=1, tmp=1, tmp=1, tmp___2=62, NULL=-16, NULL=-25, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=-3, tmp=0, head=0, NULL=0, NULL=0, NULL=0, NULL=-26, NULL=-15, NULL=0, NULL=-5, NULL=-10} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L315] int cleanupTimeShifts = 4; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L713] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L391] int retValue_acc ; [L392] int tmp ; [L535] int retValue_acc ; [L538] retValue_acc = 1 [L539] return (retValue_acc); [L398] tmp = valid_product() [L400] COND TRUE \read(tmp) [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 Loop: [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L128] COND FALSE !(\read(pumpRunning)) [L135] COND TRUE \read(systemActive) [L157] int tmp ; [L160] COND TRUE ! pumpRunning [L272] int retValue_acc ; [L273] int tmp ; [L274] int tmp___0 ; [L495] int retValue_acc ; [L498] COND TRUE waterLevel < 2 [L499] retValue_acc = 1 [L500] return (retValue_acc); [L278] tmp = isHighWaterSensorDry() [L280] COND TRUE \read(tmp) [L281] tmp___0 = 0 [L285] retValue_acc = tmp___0 [L286] return (retValue_acc); [L162] tmp = isHighWaterLevel() [L164] COND FALSE !(\read(tmp)) [L911] int tmp ; [L912] int tmp___0 ; [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); [L916] tmp = getWaterLevel() [L918] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...