./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_83fcdbc8-5adc-4e7a-8cf1-f5afb367be54/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_83fcdbc8-5adc-4e7a-8cf1-f5afb367be54/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_83fcdbc8-5adc-4e7a-8cf1-f5afb367be54/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_83fcdbc8-5adc-4e7a-8cf1-f5afb367be54/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product21.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_83fcdbc8-5adc-4e7a-8cf1-f5afb367be54/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_83fcdbc8-5adc-4e7a-8cf1-f5afb367be54/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 8ca334e090ac37635ea5e20a191b6f0bec293495 .................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:57:07,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:57:07,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:57:07,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:57:07,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:57:07,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:57:07,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:57:07,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:57:07,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:57:07,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:57:07,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:57:07,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:57:07,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:57:07,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:57:07,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:57:07,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:57:07,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:57:07,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:57:07,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:57:07,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:57:07,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:57:07,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:57:07,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:57:07,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:57:07,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:57:07,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:57:07,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:57:07,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:57:07,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:57:07,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:57:07,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:57:07,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:57:07,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:57:07,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:57:07,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:57:07,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:57:07,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:57:07,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:57:07,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:57:07,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:57:07,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:57:07,528 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_83fcdbc8-5adc-4e7a-8cf1-f5afb367be54/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:57:07,560 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:57:07,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:57:07,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:57:07,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:57:07,562 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:57:07,563 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:57:07,563 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:57:07,563 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:57:07,563 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:57:07,566 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:57:07,566 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:57:07,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:57:07,567 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:57:07,568 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:57:07,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:57:07,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:57:07,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:57:07,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:57:07,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:57:07,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:57:07,571 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:57:07,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:57:07,573 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:57:07,574 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:57:07,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:57:07,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:57:07,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:57:07,576 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:57:07,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:57:07,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:57:07,577 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:57:07,578 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:57:07,579 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_83fcdbc8-5adc-4e7a-8cf1-f5afb367be54/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 -> 8ca334e090ac37635ea5e20a191b6f0bec293495 [2019-11-25 08:57:07,746 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:57:07,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:57:07,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:57:07,763 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:57:07,763 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:57:07,764 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_83fcdbc8-5adc-4e7a-8cf1-f5afb367be54/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product21.cil.c [2019-11-25 08:57:07,821 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_83fcdbc8-5adc-4e7a-8cf1-f5afb367be54/bin/uautomizer/data/406db4995/a4cee0dc131244ca98bcb754822e756e/FLAG7ecdcc9c2 [2019-11-25 08:57:08,344 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:57:08,352 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_83fcdbc8-5adc-4e7a-8cf1-f5afb367be54/sv-benchmarks/c/product-lines/minepump_spec4_product21.cil.c [2019-11-25 08:57:08,370 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_83fcdbc8-5adc-4e7a-8cf1-f5afb367be54/bin/uautomizer/data/406db4995/a4cee0dc131244ca98bcb754822e756e/FLAG7ecdcc9c2 [2019-11-25 08:57:08,609 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_83fcdbc8-5adc-4e7a-8cf1-f5afb367be54/bin/uautomizer/data/406db4995/a4cee0dc131244ca98bcb754822e756e [2019-11-25 08:57:08,612 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:57:08,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:57:08,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:08,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:57:08,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:57:08,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:08" (1/1) ... [2019-11-25 08:57:08,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64c5be6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:08, skipping insertion in model container [2019-11-25 08:57:08,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:08" (1/1) ... [2019-11-25 08:57:08,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:57:08,676 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:57:08,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:09,008 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:57:09,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:09,135 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:57:09,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:09 WrapperNode [2019-11-25 08:57:09,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:09,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:09,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:57:09,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:57:09,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:09" (1/1) ... [2019-11-25 08:57:09,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:09" (1/1) ... [2019-11-25 08:57:09,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:09,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:57:09,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:57:09,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:57:09,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:09" (1/1) ... [2019-11-25 08:57:09,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:09" (1/1) ... [2019-11-25 08:57:09,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:09" (1/1) ... [2019-11-25 08:57:09,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:09" (1/1) ... [2019-11-25 08:57:09,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:09" (1/1) ... [2019-11-25 08:57:09,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:09" (1/1) ... [2019-11-25 08:57:09,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:09" (1/1) ... [2019-11-25 08:57:09,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:57:09,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:57:09,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:57:09,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:57:09,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83fcdbc8-5adc-4e7a-8cf1-f5afb367be54/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:09,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:57:09,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:57:09,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:57:09,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:57:10,079 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:57:10,080 INFO L284 CfgBuilder]: Removed 156 assume(true) statements. [2019-11-25 08:57:10,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:10 BoogieIcfgContainer [2019-11-25 08:57:10,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:57:10,081 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:57:10,082 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:57:10,084 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:57:10,086 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:10,087 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:57:08" (1/3) ... [2019-11-25 08:57:10,088 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bc7f23e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:57:10, skipping insertion in model container [2019-11-25 08:57:10,088 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:10,088 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:09" (2/3) ... [2019-11-25 08:57:10,089 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bc7f23e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:57:10, skipping insertion in model container [2019-11-25 08:57:10,089 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:10,089 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:10" (3/3) ... [2019-11-25 08:57:10,091 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product21.cil.c [2019-11-25 08:57:10,145 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:57:10,145 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:57:10,145 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:57:10,145 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:57:10,145 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:57:10,145 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:57:10,146 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:57:10,146 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:57:10,162 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states. [2019-11-25 08:57:10,188 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2019-11-25 08:57:10,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:10,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:10,196 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:57:10,196 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:10,196 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:57:10,197 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states. [2019-11-25 08:57:10,203 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2019-11-25 08:57:10,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:10,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:10,204 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:57:10,204 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:10,211 INFO L794 eck$LassoCheckResult]: Stem: 59#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.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(25);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(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 5#L-1true havoc main_#res;havoc main_#t~ret60, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 68#L696true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 97#L704true main_#t~ret60 := valid_product_#res;main_~tmp~7 := main_#t~ret60;havoc main_#t~ret60; 15#L791true assume 0 != main_~tmp~7; 52#L768true havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 94#L814-1true [2019-11-25 08:57:10,220 INFO L796 eck$LassoCheckResult]: Loop: 94#L814-1true assume !false; 51#L242true assume test_~splverifierCounter~0 < 4; 17#L243true test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 26#L251true assume !(0 != test_~tmp~3); 24#L251-1true test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 67#L261true assume !(0 != test_~tmp___0~1); 91#L261-1true test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 8#L271true assume 0 != test_~tmp___2~0; 98#L277-2true assume !(0 != ~pumpRunning~0); 104#L57true assume !(0 != ~systemActive~0); 31#L64true havoc __utac_acc__Specification4_spec__1_#t~ret61, __utac_acc__Specification4_spec__1_#t~ret62, __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~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 10#L907true __utac_acc__Specification4_spec__1_#t~ret61 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret61;havoc __utac_acc__Specification4_spec__1_#t~ret61; 93#L814true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 94#L814-1true [2019-11-25 08:57:10,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:10,226 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-25 08:57:10,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:10,236 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238054761] [2019-11-25 08:57:10,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:10,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:10,520 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:10,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:10,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1680298494, now seen corresponding path program 1 times [2019-11-25 08:57:10,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:10,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548051148] [2019-11-25 08:57:10,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:10,536 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:10,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:10,537 INFO L82 PathProgramCache]: Analyzing trace with hash 33980444, now seen corresponding path program 1 times [2019-11-25 08:57:10,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:10,538 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085171246] [2019-11-25 08:57:10,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:10,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:10,716 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085171246] [2019-11-25 08:57:10,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:10,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:57:10,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63999997] [2019-11-25 08:57:10,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:10,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:57:10,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:57:10,842 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 6 states. [2019-11-25 08:57:11,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:11,020 INFO L93 Difference]: Finished difference Result 102 states and 142 transitions. [2019-11-25 08:57:11,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:57:11,022 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 142 transitions. [2019-11-25 08:57:11,027 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2019-11-25 08:57:11,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 135 transitions. [2019-11-25 08:57:11,036 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2019-11-25 08:57:11,037 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2019-11-25 08:57:11,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 135 transitions. [2019-11-25 08:57:11,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:57:11,038 INFO L688 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2019-11-25 08:57:11,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 135 transitions. [2019-11-25 08:57:11,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-11-25 08:57:11,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-11-25 08:57:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2019-11-25 08:57:11,099 INFO L711 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2019-11-25 08:57:11,099 INFO L591 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2019-11-25 08:57:11,099 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:57:11,099 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 135 transitions. [2019-11-25 08:57:11,103 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2019-11-25 08:57:11,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:11,107 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:11,108 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:57:11,110 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:11,110 INFO L794 eck$LassoCheckResult]: Stem: 276#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string6.base, #t~string6.offset, 1);call write~init~int(110, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 2 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(102, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 3 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(80, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(117, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(109, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(112, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.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(25);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(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 243#L-1 havoc main_#res;havoc main_#t~ret60, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 244#L696 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 285#L704 main_#t~ret60 := valid_product_#res;main_~tmp~7 := main_#t~ret60;havoc main_#t~ret60; 288#L791 assume 0 != main_~tmp~7; 263#L768 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 264#L814-1 [2019-11-25 08:57:11,111 INFO L796 eck$LassoCheckResult]: Loop: 264#L814-1 assume !false; 257#L242 assume test_~splverifierCounter~0 < 4; 258#L243 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 295#L251 assume !(0 != test_~tmp~3); 309#L251-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 282#L261 assume !(0 != test_~tmp___0~1); 283#L261-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 251#L271 assume 0 != test_~tmp___2~0; 248#L277-2 assume !(0 != ~pumpRunning~0); 279#L57 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 296#L115 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret0, processEnvironment__wrappee__lowWaterSensor_~tmp~0;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0; 297#L89-1 assume !(0 != ~pumpRunning~0); 287#L64 havoc __utac_acc__Specification4_spec__1_#t~ret61, __utac_acc__Specification4_spec__1_#t~ret62, __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~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 260#L907 __utac_acc__Specification4_spec__1_#t~ret61 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret61;havoc __utac_acc__Specification4_spec__1_#t~ret61; 261#L814 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 264#L814-1 [2019-11-25 08:57:11,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:11,111 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-25 08:57:11,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:11,112 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092195964] [2019-11-25 08:57:11,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:11,258 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:11,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:11,260 INFO L82 PathProgramCache]: Analyzing trace with hash -2008522604, now seen corresponding path program 1 times [2019-11-25 08:57:11,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:11,261 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349499169] [2019-11-25 08:57:11,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:11,275 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:11,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:11,276 INFO L82 PathProgramCache]: Analyzing trace with hash 441062446, now seen corresponding path program 1 times [2019-11-25 08:57:11,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:11,277 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934201790] [2019-11-25 08:57:11,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:11,360 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:38,440 WARN L192 SmtUtils]: Spent 26.99 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-25 08:57:52,204 WARN L192 SmtUtils]: Spent 13.76 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-25 08:57:52,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:57:52 BoogieIcfgContainer [2019-11-25 08:57:52,266 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:57:52,267 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:57:52,267 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:57:52,267 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:57:52,268 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:10" (3/4) ... [2019-11-25 08:57:52,270 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:57:52,322 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_83fcdbc8-5adc-4e7a-8cf1-f5afb367be54/bin/uautomizer/witness.graphml [2019-11-25 08:57:52,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:57:52,323 INFO L168 Benchmark]: Toolchain (without parser) took 43710.73 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 294.1 MB). Free memory was 944.7 MB in the beginning and 826.8 MB in the end (delta: 117.9 MB). Peak memory consumption was 412.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:52,324 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:52,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 522.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -170.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:52,325 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.77 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:52,326 INFO L168 Benchmark]: Boogie Preprocessor took 41.33 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:52,326 INFO L168 Benchmark]: RCFGBuilder took 832.30 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: 62.8 MB). Peak memory consumption was 62.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:52,327 INFO L168 Benchmark]: BuchiAutomizer took 42184.90 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.8 MB). Free memory was 1.0 GB in the beginning and 839.4 MB in the end (delta: 198.7 MB). Peak memory consumption was 375.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:52,327 INFO L168 Benchmark]: Witness Printer took 55.59 ms. Allocated memory is still 1.3 GB. Free memory was 839.4 MB in the beginning and 826.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:52,330 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 522.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -170.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.77 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.33 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 832.30 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: 62.8 MB). Peak memory consumption was 62.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 42184.90 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.8 MB). Free memory was 1.0 GB in the beginning and 839.4 MB in the end (delta: 198.7 MB). Peak memory consumption was 375.6 MB. Max. memory is 11.5 GB. * Witness Printer took 55.59 ms. Allocated memory is still 1.3 GB. Free memory was 839.4 MB in the beginning and 826.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 95 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 42.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 41.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 137 SDtfs, 418 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 241]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8665} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=13902, NULL=13915, NULL=0, retValue_acc=1, NULL=8665, NULL=13900, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=8667, tmp=0, NULL=13914, NULL=13912, methaneLevelCritical=0, NULL=13903, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cc90954=0, tmp=0, NULL=0, NULL=0, NULL=13904, tmp___1=0, NULL=0, NULL=0, NULL=0, cleanupTimeShifts=4, NULL=13906, NULL=8666, NULL=13909, tmp___0=0, NULL=13898, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=13913, NULL=0, NULL=13899, NULL=8669, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=8670, \result=1, NULL=13901, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59ab7bc8=0, \result=0, NULL=8672, NULL=8668, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@845c48f=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7df44db5=60, retValue_acc=1, NULL=0, tmp=1, tmp___2=60, tmp___0=0, splverifierCounter=0, NULL=13908, NULL=13910, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b7593f9=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7203c4dd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ec0850d=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49d81c69=0, NULL=13911, NULL=13905, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ebb0cc=0, NULL=8671, NULL=13907} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int pumpRunning = 0; [L50] int systemActive = 1; [L709] int cleanupTimeShifts = 4; [L832] int waterLevel = 1; [L833] int methaneLevelCritical = 0; [L474] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L782] int retValue_acc ; [L783] int tmp ; [L700] int retValue_acc ; [L703] retValue_acc = 1 [L704] return (retValue_acc); [L789] tmp = valid_product() [L791] COND TRUE \read(tmp) [L232] int splverifierCounter ; [L233] int tmp ; [L234] int tmp___0 ; [L235] int tmp___1 ; [L236] int tmp___2 ; [L239] splverifierCounter = 0 Loop: [L241] COND TRUE 1 [L243] COND TRUE splverifierCounter < 4 [L249] tmp = __VERIFIER_nondet_int() [L251] COND FALSE !(\read(tmp)) [L259] tmp___0 = __VERIFIER_nondet_int() [L261] COND FALSE !(\read(tmp___0)) [L269] tmp___2 = __VERIFIER_nondet_int() [L271] COND TRUE \read(tmp___2) [L57] COND FALSE !(\read(pumpRunning)) [L64] COND TRUE \read(systemActive) [L112] int tmp ; [L115] COND FALSE !(\read(pumpRunning)) [L86] int tmp ; [L89] COND FALSE !(\read(pumpRunning)) [L807] int tmp ; [L808] int tmp___0 ; [L903] int retValue_acc ; [L906] retValue_acc = waterLevel [L907] return (retValue_acc); [L812] tmp = getWaterLevel() [L814] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...