./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_13977fb4-ab16-4be9-a000-2b8ac79f5d60/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_13977fb4-ab16-4be9-a000-2b8ac79f5d60/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_13977fb4-ab16-4be9-a000-2b8ac79f5d60/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_13977fb4-ab16-4be9-a000-2b8ac79f5d60/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_13977fb4-ab16-4be9-a000-2b8ac79f5d60/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_13977fb4-ab16-4be9-a000-2b8ac79f5d60/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 3df8d35662b819e3a4d212ebbe7a52d191ed1c2f ........................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-29 19:51:46,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:51:46,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:51:46,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:51:46,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:51:46,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:51:46,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:51:46,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:51:46,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:51:46,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:51:46,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:51:46,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:51:46,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:51:46,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:51:46,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:51:46,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:51:46,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:51:46,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:51:46,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:51:46,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:51:46,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:51:46,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:51:46,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:51:46,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:51:46,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:51:46,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:51:46,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:51:46,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:51:46,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:51:46,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:51:46,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:51:46,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:51:46,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:51:46,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:51:46,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:51:46,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:51:46,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:51:46,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:51:46,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:51:46,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:51:46,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:51:46,539 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_13977fb4-ab16-4be9-a000-2b8ac79f5d60/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:51:46,585 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:51:46,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:51:46,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:51:46,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:51:46,587 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:51:46,587 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:51:46,587 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:51:46,587 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:51:46,587 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:51:46,588 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:51:46,588 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:51:46,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:51:46,598 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:51:46,598 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:51:46,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:51:46,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:51:46,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:51:46,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:51:46,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:51:46,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:51:46,599 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:51:46,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:51:46,600 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:51:46,600 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:51:46,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:51:46,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:51:46,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:51:46,601 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:51:46,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:51:46,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:51:46,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:51:46,603 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:51:46,604 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:51:46,604 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_13977fb4-ab16-4be9-a000-2b8ac79f5d60/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_13977fb4-ab16-4be9-a000-2b8ac79f5d60/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df8d35662b819e3a4d212ebbe7a52d191ed1c2f [2020-11-29 19:51:46,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:51:46,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:51:46,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:51:46,909 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:51:46,910 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:51:46,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_13977fb4-ab16-4be9-a000-2b8ac79f5d60/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c [2020-11-29 19:51:46,980 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_13977fb4-ab16-4be9-a000-2b8ac79f5d60/bin/uautomizer/data/c08dd8719/170a7e68457f444dadd8aa929c105e66/FLAG5ebd2ca76 [2020-11-29 19:51:47,523 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:51:47,523 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_13977fb4-ab16-4be9-a000-2b8ac79f5d60/sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c [2020-11-29 19:51:47,536 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_13977fb4-ab16-4be9-a000-2b8ac79f5d60/bin/uautomizer/data/c08dd8719/170a7e68457f444dadd8aa929c105e66/FLAG5ebd2ca76 [2020-11-29 19:51:47,805 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_13977fb4-ab16-4be9-a000-2b8ac79f5d60/bin/uautomizer/data/c08dd8719/170a7e68457f444dadd8aa929c105e66 [2020-11-29 19:51:47,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:51:47,808 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:51:47,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:51:47,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:51:47,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:51:47,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:51:47" (1/1) ... [2020-11-29 19:51:47,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44714aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:47, skipping insertion in model container [2020-11-29 19:51:47,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:51:47" (1/1) ... [2020-11-29 19:51:47,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:51:47,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:51:48,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:51:48,203 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:51:48,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:51:48,304 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:51:48,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:48 WrapperNode [2020-11-29 19:51:48,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:51:48,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:51:48,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:51:48,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:51:48,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:48" (1/1) ... [2020-11-29 19:51:48,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:48" (1/1) ... [2020-11-29 19:51:48,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:51:48,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:51:48,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:51:48,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:51:48,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:48" (1/1) ... [2020-11-29 19:51:48,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:48" (1/1) ... [2020-11-29 19:51:48,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:48" (1/1) ... [2020-11-29 19:51:48,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:48" (1/1) ... [2020-11-29 19:51:48,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:48" (1/1) ... [2020-11-29 19:51:48,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:48" (1/1) ... [2020-11-29 19:51:48,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:48" (1/1) ... [2020-11-29 19:51:48,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:51:48,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:51:48,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:51:48,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:51:48,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_13977fb4-ab16-4be9-a000-2b8ac79f5d60/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 [2020-11-29 19:51:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:51:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:51:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:51:48,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:51:49,452 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:51:49,452 INFO L298 CfgBuilder]: Removed 110 assume(true) statements. [2020-11-29 19:51:49,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:51:49 BoogieIcfgContainer [2020-11-29 19:51:49,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:51:49,455 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:51:49,455 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:51:49,461 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:51:49,462 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:51:49,462 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:51:47" (1/3) ... [2020-11-29 19:51:49,463 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@fab72f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:51:49, skipping insertion in model container [2020-11-29 19:51:49,464 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:51:49,464 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:48" (2/3) ... [2020-11-29 19:51:49,464 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@fab72f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:51:49, skipping insertion in model container [2020-11-29 19:51:49,464 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:51:49,464 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:51:49" (3/3) ... [2020-11-29 19:51:49,466 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product20.cil.c [2020-11-29 19:51:49,537 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:51:49,537 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:51:49,538 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:51:49,538 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:51:49,538 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:51:49,538 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:51:49,538 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:51:49,538 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:51:49,558 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2020-11-29 19:51:49,589 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-29 19:51:49,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:51:49,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:51:49,598 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:51:49,599 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:51:49,599 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:51:49,599 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2020-11-29 19:51:49,607 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-29 19:51:49,607 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:51:49,607 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:51:49,608 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:51:49,608 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:51:49,612 INFO L794 eck$LassoCheckResult]: Stem: 53#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);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~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);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~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 23#L-1true havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~5, main_~tmp~1;havoc main_~retValue_acc~5;havoc main_~tmp~1; 34#L109true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 52#L117true main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 3#L303true assume 0 != main_~tmp~1; 55#L278true ~methAndRunningLastTime~0 := 0; 17#L51true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 16#L62-1true [2020-11-29 19:51:49,613 INFO L796 eck$LassoCheckResult]: Loop: 16#L62-1true assume !false; 13#L705true assume test_~splverifierCounter~0 < 4; 45#L706true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 63#L714true assume !(0 != test_~tmp~5); 51#L714-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 24#L724true assume !(0 != test_~tmp___0~1); 27#L724-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 77#L734true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 40#L742-1true assume !(0 != ~pumpRunning~0); 43#L772true assume !(0 != ~systemActive~0); 48#L779true havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 28#L171true __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 19#L62true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 16#L62-1true [2020-11-29 19:51:49,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:49,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 19:51:49,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:49,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029996957] [2020-11-29 19:51:49,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:49,945 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:50,095 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:50,153 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:51:50,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:50,159 INFO L82 PathProgramCache]: Analyzing trace with hash 12142294, now seen corresponding path program 1 times [2020-11-29 19:51:50,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:50,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318408724] [2020-11-29 19:51:50,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:51:50,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:51:50,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318408724] [2020-11-29 19:51:50,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:51:50,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:51:50,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682520453] [2020-11-29 19:51:50,242 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:51:50,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:51:50,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:51:50,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:51:50,262 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 3 states. [2020-11-29 19:51:50,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:51:50,330 INFO L93 Difference]: Finished difference Result 149 states and 211 transitions. [2020-11-29 19:51:50,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:51:50,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 211 transitions. [2020-11-29 19:51:50,347 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2020-11-29 19:51:50,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 135 states and 196 transitions. [2020-11-29 19:51:50,366 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 135 [2020-11-29 19:51:50,367 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2020-11-29 19:51:50,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 196 transitions. [2020-11-29 19:51:50,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:51:50,371 INFO L691 BuchiCegarLoop]: Abstraction has 135 states and 196 transitions. [2020-11-29 19:51:50,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 196 transitions. [2020-11-29 19:51:50,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2020-11-29 19:51:50,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-11-29 19:51:50,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 193 transitions. [2020-11-29 19:51:50,415 INFO L714 BuchiCegarLoop]: Abstraction has 133 states and 193 transitions. [2020-11-29 19:51:50,415 INFO L594 BuchiCegarLoop]: Abstraction has 133 states and 193 transitions. [2020-11-29 19:51:50,415 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:51:50,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 133 states and 193 transitions. [2020-11-29 19:51:50,419 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2020-11-29 19:51:50,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:51:50,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:51:50,420 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:51:50,420 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:51:50,421 INFO L794 eck$LassoCheckResult]: Stem: 300#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);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~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);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~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 276#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~5, main_~tmp~1;havoc main_~retValue_acc~5;havoc main_~tmp~1; 277#L109 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 287#L117 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 239#L303 assume 0 != main_~tmp~1; 240#L278 ~methAndRunningLastTime~0 := 0; 267#L51 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 266#L62-1 [2020-11-29 19:51:50,421 INFO L796 eck$LassoCheckResult]: Loop: 266#L62-1 assume !false; 259#L705 assume test_~splverifierCounter~0 < 4; 260#L706 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 297#L714 assume !(0 != test_~tmp~5); 263#L714-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 278#L724 assume !(0 != test_~tmp___0~1); 280#L724-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 283#L734 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 290#L742-1 assume !(0 != ~pumpRunning~0); 293#L772 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 241#L804 assume !(0 != ~pumpRunning~0); 243#L779 havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 284#L171 __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 270#L62 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 266#L62-1 [2020-11-29 19:51:50,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:50,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 19:51:50,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:50,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473289647] [2020-11-29 19:51:50,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:50,516 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:50,626 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:50,659 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:51:50,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:50,660 INFO L82 PathProgramCache]: Analyzing trace with hash 349417955, now seen corresponding path program 1 times [2020-11-29 19:51:50,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:50,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29358736] [2020-11-29 19:51:50,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:50,671 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:50,676 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:50,686 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:51:50,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:50,688 INFO L82 PathProgramCache]: Analyzing trace with hash 411805865, now seen corresponding path program 1 times [2020-11-29 19:51:50,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:50,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664241351] [2020-11-29 19:51:50,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:50,779 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:51:50,860 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:51:50,876 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:53:01,826 WARN L193 SmtUtils]: Spent 1.18 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 19:53:55,650 WARN L193 SmtUtils]: Spent 53.79 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 19:53:55,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:53:55 BoogieIcfgContainer [2020-11-29 19:53:55,865 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:53:55,866 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:53:55,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:53:55,866 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:53:55,867 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:51:49" (3/4) ... [2020-11-29 19:53:55,870 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:53:55,920 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_13977fb4-ab16-4be9-a000-2b8ac79f5d60/bin/uautomizer/witness.graphml [2020-11-29 19:53:55,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:53:55,922 INFO L168 Benchmark]: Toolchain (without parser) took 128113.19 ms. Allocated memory was 88.1 MB in the beginning and 134.2 MB in the end (delta: 46.1 MB). Free memory was 56.7 MB in the beginning and 82.3 MB in the end (delta: -25.6 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:53:55,922 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory was 46.4 MB in the beginning and 46.3 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:53:55,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.70 ms. Allocated memory is still 88.1 MB. Free memory was 56.5 MB in the beginning and 55.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:53:55,924 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.81 ms. Allocated memory is still 88.1 MB. Free memory was 55.5 MB in the beginning and 52.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:53:55,924 INFO L168 Benchmark]: Boogie Preprocessor took 85.72 ms. Allocated memory is still 88.1 MB. Free memory was 52.6 MB in the beginning and 50.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:53:55,925 INFO L168 Benchmark]: RCFGBuilder took 985.29 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.1 MB in the beginning and 50.1 MB in the end (delta: 3.7 kB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:53:55,926 INFO L168 Benchmark]: BuchiAutomizer took 126410.30 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 50.1 MB in the beginning and 84.3 MB in the end (delta: -34.2 MB). Peak memory consumption was 53.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:53:55,926 INFO L168 Benchmark]: Witness Printer took 54.70 ms. Allocated memory is still 134.2 MB. Free memory was 84.3 MB in the beginning and 82.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:53:55,930 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory was 46.4 MB in the beginning and 46.3 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 493.70 ms. Allocated memory is still 88.1 MB. Free memory was 56.5 MB in the beginning and 55.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.81 ms. Allocated memory is still 88.1 MB. Free memory was 55.5 MB in the beginning and 52.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.72 ms. Allocated memory is still 88.1 MB. Free memory was 52.6 MB in the beginning and 50.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 985.29 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.1 MB in the beginning and 50.1 MB in the end (delta: 3.7 kB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 126410.30 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 50.1 MB in the beginning and 84.3 MB in the end (delta: -34.2 MB). Peak memory consumption was 53.8 MB. Max. memory is 16.1 GB. * Witness Printer took 54.70 ms. Allocated memory is still 134.2 MB. Free memory was 84.3 MB in the beginning and 82.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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 3 locations. The remainder module has 133 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 126.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 126.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 133 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 108 SDtfs, 104 SDslu, 95 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 704]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=16520, NULL=0, NULL=0, NULL=1, NULL=0, NULL=16511, NULL=0, NULL=0, retValue_acc=0, NULL=16514, NULL=0, NULL=0, NULL=16522, NULL=16510, methaneLevelCritical=0, NULL=0, NULL=0, tmp=0, NULL=16500, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=16497, cleanupTimeShifts=4, NULL=16502, NULL=16527, NULL=16528, NULL=16512, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5175fa0a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50c6621c=0, NULL=0, systemActive=1, waterLevel=1, NULL=16506, NULL=0, retValue_acc=0, NULL=16519, NULL=0, NULL=0, NULL=0, NULL=16507, \result=1, head=0, pumpRunning=0, NULL=16518, \result=0, NULL=16516, NULL=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=16503, tmp___0=0, NULL=16513, NULL=0, NULL=0, NULL=16515, NULL=0, NULL=16504, retValue_acc=1, tmp___2=69, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=16505, NULL=16509, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@433a628c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f9527d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d1e55f2=69, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15fbd154=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@584d803c=0, head=0, NULL=16499, tmp=0, NULL=0, tmp=0, NULL=16501, NULL=16498, NULL=0, NULL=0, NULL=16517, NULL=0, NULL=16508, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@695f0bd8=0, NULL=16521} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L45] int methAndRunningLastTime ; [L128] int waterLevel = 1; [L129] int methaneLevelCritical = 0; [L217] int cleanupTimeShifts = 4; [L486] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L765] int pumpRunning = 0; [L766] int systemActive = 1; [L294] int retValue_acc ; [L295] int tmp ; [L113] int retValue_acc ; [L116] retValue_acc = 1 [L117] return (retValue_acc); [L301] tmp = valid_product() [L303] COND TRUE \read(tmp) [L50] methAndRunningLastTime = 0 [L695] int splverifierCounter ; [L696] int tmp ; [L697] int tmp___0 ; [L698] int tmp___1 ; [L699] int tmp___2 ; [L702] splverifierCounter = 0 Loop: [L704] COND TRUE 1 [L706] COND TRUE splverifierCounter < 4 [L712] tmp = __VERIFIER_nondet_int() [L714] COND FALSE !(\read(tmp)) [L722] tmp___0 = __VERIFIER_nondet_int() [L724] COND FALSE !(\read(tmp___0)) [L732] tmp___2 = __VERIFIER_nondet_int() [L734] COND TRUE \read(tmp___2) [L935] systemActive = 1 [L772] COND FALSE !(\read(pumpRunning)) [L779] COND TRUE \read(systemActive) [L801] int tmp ; [L804] COND FALSE !(\read(pumpRunning)) [L55] int tmp ; [L56] int tmp___0 ; [L167] int retValue_acc ; [L170] retValue_acc = methaneLevelCritical [L171] return (retValue_acc); [L60] tmp = isMethaneLevelCritical() [L62] COND FALSE !(\read(tmp)) [L78] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...