./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product37.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_12b9bf73-d1f9-43ca-b764-3797b01b29ed/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_12b9bf73-d1f9-43ca-b764-3797b01b29ed/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_12b9bf73-d1f9-43ca-b764-3797b01b29ed/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_12b9bf73-d1f9-43ca-b764-3797b01b29ed/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_12b9bf73-d1f9-43ca-b764-3797b01b29ed/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_12b9bf73-d1f9-43ca-b764-3797b01b29ed/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 e155c6ff67a88d7a4e2430bd4435eb1c3cafcd71 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:17:03,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:17:03,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:17:03,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:17:03,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:17:03,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:17:03,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:17:03,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:17:03,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:17:03,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:17:03,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:17:03,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:17:03,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:17:03,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:17:03,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:17:03,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:17:03,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:17:03,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:17:03,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:17:03,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:17:03,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:17:03,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:17:03,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:17:03,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:17:03,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:17:03,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:17:03,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:17:03,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:17:03,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:17:03,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:17:03,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:17:03,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:17:03,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:17:03,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:17:03,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:17:03,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:17:03,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:17:03,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:17:03,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:17:03,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:17:03,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:17:03,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_12b9bf73-d1f9-43ca-b764-3797b01b29ed/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:17:03,564 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:17:03,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:17:03,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:17:03,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:17:03,570 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:17:03,571 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:17:03,571 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:17:03,571 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:17:03,571 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:17:03,572 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:17:03,573 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:17:03,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:17:03,574 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:17:03,574 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:17:03,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:17:03,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:17:03,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:17:03,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:17:03,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:17:03,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:17:03,583 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:17:03,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:17:03,583 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:17:03,583 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:17:03,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:17:03,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:17:03,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:17:03,584 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:17:03,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:17:03,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:17:03,587 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:17:03,587 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:17:03,590 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:17:03,590 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_12b9bf73-d1f9-43ca-b764-3797b01b29ed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_12b9bf73-d1f9-43ca-b764-3797b01b29ed/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e155c6ff67a88d7a4e2430bd4435eb1c3cafcd71 [2020-11-29 20:17:03,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:17:03,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:17:03,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:17:03,999 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:17:04,000 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:17:04,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_12b9bf73-d1f9-43ca-b764-3797b01b29ed/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c [2020-11-29 20:17:04,078 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12b9bf73-d1f9-43ca-b764-3797b01b29ed/bin/uautomizer/data/ecce95a65/34430ed8238b4e2283e1152c87d9d31a/FLAG0f4b93e17 [2020-11-29 20:17:04,737 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:17:04,742 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_12b9bf73-d1f9-43ca-b764-3797b01b29ed/sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c [2020-11-29 20:17:04,772 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12b9bf73-d1f9-43ca-b764-3797b01b29ed/bin/uautomizer/data/ecce95a65/34430ed8238b4e2283e1152c87d9d31a/FLAG0f4b93e17 [2020-11-29 20:17:05,006 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_12b9bf73-d1f9-43ca-b764-3797b01b29ed/bin/uautomizer/data/ecce95a65/34430ed8238b4e2283e1152c87d9d31a [2020-11-29 20:17:05,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:17:05,011 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:17:05,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:17:05,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:17:05,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:17:05,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:17:05" (1/1) ... [2020-11-29 20:17:05,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d7aa78c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:05, skipping insertion in model container [2020-11-29 20:17:05,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:17:05" (1/1) ... [2020-11-29 20:17:05,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:17:05,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:17:05,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:17:05,467 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:17:05,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:17:05,690 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:17:05,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:05 WrapperNode [2020-11-29 20:17:05,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:17:05,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:17:05,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:17:05,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:17:05,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:05" (1/1) ... [2020-11-29 20:17:05,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:05" (1/1) ... [2020-11-29 20:17:05,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:17:05,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:17:05,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:17:05,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:17:05,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:05" (1/1) ... [2020-11-29 20:17:05,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:05" (1/1) ... [2020-11-29 20:17:05,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:05" (1/1) ... [2020-11-29 20:17:05,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:05" (1/1) ... [2020-11-29 20:17:05,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:05" (1/1) ... [2020-11-29 20:17:05,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:05" (1/1) ... [2020-11-29 20:17:05,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:05" (1/1) ... [2020-11-29 20:17:05,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:17:05,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:17:05,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:17:05,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:17:05,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12b9bf73-d1f9-43ca-b764-3797b01b29ed/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 20:17:05,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:17:05,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:17:05,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:17:05,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:17:07,233 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:17:07,234 INFO L298 CfgBuilder]: Removed 162 assume(true) statements. [2020-11-29 20:17:07,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:17:07 BoogieIcfgContainer [2020-11-29 20:17:07,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:17:07,240 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:17:07,240 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:17:07,245 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:17:07,246 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:17:07,246 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:17:05" (1/3) ... [2020-11-29 20:17:07,248 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22ccb885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:17:07, skipping insertion in model container [2020-11-29 20:17:07,248 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:17:07,248 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:17:05" (2/3) ... [2020-11-29 20:17:07,249 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22ccb885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:17:07, skipping insertion in model container [2020-11-29 20:17:07,249 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:17:07,249 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:17:07" (3/3) ... [2020-11-29 20:17:07,252 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product37.cil.c [2020-11-29 20:17:07,317 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:17:07,317 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:17:07,317 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:17:07,318 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:17:07,318 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:17:07,318 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:17:07,318 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:17:07,318 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:17:07,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-11-29 20:17:07,363 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-29 20:17:07,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:17:07,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:17:07,373 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:17:07,374 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:07,374 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:17:07,374 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-11-29 20:17:07,384 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-29 20:17:07,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:17:07,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:17:07,385 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:17:07,385 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:07,391 INFO L794 eck$LassoCheckResult]: Stem: 90#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 11#L-1true havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 46#L67true 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; 55#L75true main_#t~ret32 := valid_product_#res;main_~tmp~4 := main_#t~ret32;havoc main_#t~ret32; 97#L418true assume 0 != main_~tmp~4; 25#L395true havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 6#L910-1true [2020-11-29 20:17:07,392 INFO L796 eck$LassoCheckResult]: Loop: 6#L910-1true assume !false; 27#L95true assume test_~splverifierCounter~0 < 4; 102#L96true test_~tmp~0 := test_#t~nondet8;havoc test_#t~nondet8; 100#L104true assume !(0 != test_~tmp~0); 98#L104-1true test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 24#L114true assume !(0 != test_~tmp___0~0); 23#L114-1true test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 67#L124true assume 0 != test_~tmp___2~0; 54#L130-2true assume !(0 != ~pumpRunning~0); 87#L165true assume !(0 != ~systemActive~0); 34#L172true havoc __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_#t~ret79, __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~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 106#L517true __utac_acc__Specification4_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret78;havoc __utac_acc__Specification4_spec__1_#t~ret78; 3#L910true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 6#L910-1true [2020-11-29 20:17:07,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:07,399 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 20:17:07,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:07,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481860657] [2020-11-29 20:17:07,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:07,761 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:07,876 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:07,937 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:17:07,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:07,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1679990652, now seen corresponding path program 1 times [2020-11-29 20:17:07,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:07,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199454136] [2020-11-29 20:17:07,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:07,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:07,974 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:07,983 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:17:07,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:07,994 INFO L82 PathProgramCache]: Analyzing trace with hash 34288286, now seen corresponding path program 1 times [2020-11-29 20:17:07,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:07,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009521799] [2020-11-29 20:17:07,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:08,187 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 20:17:08,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009521799] [2020-11-29 20:17:08,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:08,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:17:08,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969399574] [2020-11-29 20:17:08,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:08,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:17:08,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:17:08,354 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 6 states. [2020-11-29 20:17:08,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:08,691 INFO L93 Difference]: Finished difference Result 108 states and 154 transitions. [2020-11-29 20:17:08,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:17:08,698 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 154 transitions. [2020-11-29 20:17:08,707 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2020-11-29 20:17:08,721 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 101 states and 147 transitions. [2020-11-29 20:17:08,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2020-11-29 20:17:08,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2020-11-29 20:17:08,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 147 transitions. [2020-11-29 20:17:08,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:17:08,730 INFO L691 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2020-11-29 20:17:08,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 147 transitions. [2020-11-29 20:17:08,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-11-29 20:17:08,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-29 20:17:08,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2020-11-29 20:17:08,786 INFO L714 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2020-11-29 20:17:08,786 INFO L594 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2020-11-29 20:17:08,787 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:17:08,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 147 transitions. [2020-11-29 20:17:08,794 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2020-11-29 20:17:08,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:17:08,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:17:08,795 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:17:08,795 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:08,795 INFO L794 eck$LassoCheckResult]: Stem: 333#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 255#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 256#L67 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; 307#L75 main_#t~ret32 := valid_product_#res;main_~tmp~4 := main_#t~ret32;havoc main_#t~ret32; 320#L418 assume 0 != main_~tmp~4; 284#L395 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 238#L910-1 [2020-11-29 20:17:08,796 INFO L796 eck$LassoCheckResult]: Loop: 238#L910-1 assume !false; 245#L95 assume test_~splverifierCounter~0 < 4; 286#L96 test_~tmp~0 := test_#t~nondet8;havoc test_#t~nondet8; 337#L104 assume !(0 != test_~tmp~0); 329#L104-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 283#L114 assume !(0 != test_~tmp___0~0); 281#L114-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 282#L124 assume 0 != test_~tmp___2~0; 317#L130-2 assume !(0 != ~pumpRunning~0); 318#L165 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 332#L223 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret12, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 278#L197-1 assume !(0 == ~pumpRunning~0); 242#L172 havoc __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_#t~ret79, __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~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 291#L517 __utac_acc__Specification4_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret78;havoc __utac_acc__Specification4_spec__1_#t~ret78; 237#L910 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 238#L910-1 [2020-11-29 20:17:08,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:08,796 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 20:17:08,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:08,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964078332] [2020-11-29 20:17:08,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:08,876 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:08,947 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:08,965 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:17:08,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:08,966 INFO L82 PathProgramCache]: Analyzing trace with hash -2003597157, now seen corresponding path program 1 times [2020-11-29 20:17:08,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:08,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048347590] [2020-11-29 20:17:08,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:17:08,986 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 20:17:08,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048347590] [2020-11-29 20:17:08,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:17:08,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:17:08,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530791273] [2020-11-29 20:17:08,987 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:17:08,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:17:08,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:17:08,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:17:08,989 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. cyclomatic complexity: 48 Second operand 3 states. [2020-11-29 20:17:09,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:17:09,169 INFO L93 Difference]: Finished difference Result 142 states and 195 transitions. [2020-11-29 20:17:09,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:17:09,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 195 transitions. [2020-11-29 20:17:09,174 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2020-11-29 20:17:09,176 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 142 states and 195 transitions. [2020-11-29 20:17:09,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 142 [2020-11-29 20:17:09,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 142 [2020-11-29 20:17:09,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 142 states and 195 transitions. [2020-11-29 20:17:09,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:17:09,180 INFO L691 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2020-11-29 20:17:09,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states and 195 transitions. [2020-11-29 20:17:09,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2020-11-29 20:17:09,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-29 20:17:09,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2020-11-29 20:17:09,193 INFO L714 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2020-11-29 20:17:09,198 INFO L594 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2020-11-29 20:17:09,198 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 20:17:09,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 195 transitions. [2020-11-29 20:17:09,201 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2020-11-29 20:17:09,205 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:17:09,205 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:17:09,205 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:17:09,206 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:17:09,206 INFO L794 eck$LassoCheckResult]: Stem: 583#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 504#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 505#L67 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; 558#L75 main_#t~ret32 := valid_product_#res;main_~tmp~4 := main_#t~ret32;havoc main_#t~ret32; 570#L418 assume 0 != main_~tmp~4; 532#L395 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 487#L910-1 [2020-11-29 20:17:09,206 INFO L796 eck$LassoCheckResult]: Loop: 487#L910-1 assume !false; 494#L95 assume test_~splverifierCounter~0 < 4; 534#L96 test_~tmp~0 := test_#t~nondet8;havoc test_#t~nondet8; 586#L104 assume !(0 != test_~tmp~0); 579#L104-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 531#L114 assume !(0 != test_~tmp___0~0); 529#L114-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 530#L124 assume 0 != test_~tmp___2~0; 568#L130-2 assume !(0 != ~pumpRunning~0); 569#L165 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 582#L223 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret12, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 526#L197-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret31, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 527#L525-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 517#L530-1 isHighWaterLevel_#t~ret31 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret31;havoc isHighWaterLevel_#t~ret31; 518#L325-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 577#L325-5 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 566#L331-1 processEnvironment__wrappee__highWaterSensor_#t~ret12 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret12;havoc processEnvironment__wrappee__highWaterSensor_#t~ret12; 567#L201-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 541#L172 havoc __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_#t~ret79, __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~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 542#L517 __utac_acc__Specification4_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret78;havoc __utac_acc__Specification4_spec__1_#t~ret78; 486#L910 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 487#L910-1 [2020-11-29 20:17:09,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:09,206 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 20:17:09,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:09,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909673609] [2020-11-29 20:17:09,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:09,250 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:09,328 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:09,347 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:17:09,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:09,348 INFO L82 PathProgramCache]: Analyzing trace with hash 456147495, now seen corresponding path program 1 times [2020-11-29 20:17:09,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:09,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699491971] [2020-11-29 20:17:09,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:09,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:09,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:09,371 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:09,375 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:17:09,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:17:09,377 INFO L82 PathProgramCache]: Analyzing trace with hash 912218689, now seen corresponding path program 1 times [2020-11-29 20:17:09,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:17:09,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063203365] [2020-11-29 20:17:09,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:17:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:09,415 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:17:09,468 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:17:09,492 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:17:09,715 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-29 20:18:33,922 WARN L193 SmtUtils]: Spent 1.40 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 20:19:27,139 WARN L193 SmtUtils]: Spent 53.21 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 20:19:27,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:19:27 BoogieIcfgContainer [2020-11-29 20:19:27,316 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:19:27,317 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:19:27,317 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:19:27,317 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:19:27,318 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:17:07" (3/4) ... [2020-11-29 20:19:27,321 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 20:19:27,378 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_12b9bf73-d1f9-43ca-b764-3797b01b29ed/bin/uautomizer/witness.graphml [2020-11-29 20:19:27,379 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:19:27,380 INFO L168 Benchmark]: Toolchain (without parser) took 142368.99 ms. Allocated memory was 83.9 MB in the beginning and 142.6 MB in the end (delta: 58.7 MB). Free memory was 58.7 MB in the beginning and 71.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:27,381 INFO L168 Benchmark]: CDTParser took 1.00 ms. Allocated memory is still 69.2 MB. Free memory was 46.4 MB in the beginning and 46.4 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:19:27,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.04 ms. Allocated memory is still 83.9 MB. Free memory was 58.5 MB in the beginning and 48.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:27,382 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.22 ms. Allocated memory is still 83.9 MB. Free memory was 48.8 MB in the beginning and 45.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:27,383 INFO L168 Benchmark]: Boogie Preprocessor took 72.99 ms. Allocated memory is still 83.9 MB. Free memory was 45.3 MB in the beginning and 42.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:27,383 INFO L168 Benchmark]: RCFGBuilder took 1343.92 ms. Allocated memory was 83.9 MB in the beginning and 111.1 MB in the end (delta: 27.3 MB). Free memory was 42.7 MB in the beginning and 65.0 MB in the end (delta: -22.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:27,384 INFO L168 Benchmark]: BuchiAutomizer took 140076.85 ms. Allocated memory was 111.1 MB in the beginning and 142.6 MB in the end (delta: 31.5 MB). Free memory was 65.0 MB in the beginning and 74.8 MB in the end (delta: -9.8 MB). Peak memory consumption was 69.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:27,385 INFO L168 Benchmark]: Witness Printer took 62.03 ms. Allocated memory is still 142.6 MB. Free memory was 74.8 MB in the beginning and 71.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:19:27,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00 ms. Allocated memory is still 69.2 MB. Free memory was 46.4 MB in the beginning and 46.4 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 678.04 ms. Allocated memory is still 83.9 MB. Free memory was 58.5 MB in the beginning and 48.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 118.22 ms. Allocated memory is still 83.9 MB. Free memory was 48.8 MB in the beginning and 45.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.99 ms. Allocated memory is still 83.9 MB. Free memory was 45.3 MB in the beginning and 42.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1343.92 ms. Allocated memory was 83.9 MB in the beginning and 111.1 MB in the end (delta: 27.3 MB). Free memory was 42.7 MB in the beginning and 65.0 MB in the end (delta: -22.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 140076.85 ms. Allocated memory was 111.1 MB in the beginning and 142.6 MB in the end (delta: 31.5 MB). Free memory was 65.0 MB in the beginning and 74.8 MB in the end (delta: -9.8 MB). Peak memory consumption was 69.6 MB. Max. memory is 16.1 GB. * Witness Printer took 62.03 ms. Allocated memory is still 142.6 MB. Free memory was 74.8 MB in the beginning and 71.8 MB in the end (delta: 3.0 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 142 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 139.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 139.2s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 142 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 298 SDtfs, 557 SDslu, 59 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 94]: 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=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2838ae07=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@743953d6=0, NULL=1, NULL=38946, NULL=0, NULL=38943, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f84d5cb=0, retValue_acc=0, tmp___1=0, NULL=0, NULL=38935, NULL=14573, cleanupTimeShifts=4, tmp=0, NULL=38938, waterLevel=1, NULL=0, NULL=0, tmp___0=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=38950, tmp=1, NULL=0, NULL=0, NULL=0, \result=1, NULL=38930, NULL=0, NULL=0, tmp=1, NULL=38949, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d760c65=0, retValue_acc=1, tmp=1, NULL=0, NULL=14572, NULL=38928, NULL=38942, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a7fd29=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@455ea112=0, head=0, NULL=0, NULL=0, NULL=38931, NULL=38932, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13c38445=0, retValue_acc=0, NULL=0, NULL=38934, NULL=38948, NULL=38947, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ae6d2f8=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@442f122c=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43dfe64a=0, NULL=0, NULL=0, NULL=0, NULL=38929, tmp=0, NULL=14574, tmp___0=0, NULL=0, systemActive=1, \result=1, \result=0, NULL=38926, NULL=38936, \result=0, NULL=38939, NULL=0, NULL=0, NULL=38933, NULL=38927, retValue_acc=1, tmp___2=56, splverifierCounter=0, NULL=0, NULL=38941, NULL=38940, NULL=0, NULL=0, NULL=38937, NULL=0, NULL=38944, NULL=38945} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L157] int pumpRunning = 0; [L158] int systemActive = 1; [L336] int cleanupTimeShifts = 4; [L442] int waterLevel = 1; [L443] int methaneLevelCritical = 0; [L705] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L409] int retValue_acc ; [L410] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L416] tmp = valid_product() [L418] COND TRUE \read(tmp) [L85] int splverifierCounter ; [L86] int tmp ; [L87] int tmp___0 ; [L88] int tmp___1 ; [L89] int tmp___2 ; [L92] splverifierCounter = 0 Loop: [L94] COND TRUE 1 [L96] COND TRUE splverifierCounter < 4 [L102] tmp = __VERIFIER_nondet_int() [L104] COND FALSE !(\read(tmp)) [L112] tmp___0 = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp___0)) [L122] tmp___2 = __VERIFIER_nondet_int() [L124] COND TRUE \read(tmp___2) [L165] COND FALSE !(\read(pumpRunning)) [L172] COND TRUE \read(systemActive) [L220] int tmp ; [L223] COND FALSE !(\read(pumpRunning)) [L194] int tmp ; [L197] COND TRUE ! pumpRunning [L317] int retValue_acc ; [L318] int tmp ; [L319] int tmp___0 ; [L522] int retValue_acc ; [L525] COND TRUE waterLevel < 2 [L526] retValue_acc = 1 [L527] return (retValue_acc); [L323] tmp = isHighWaterSensorDry() [L325] COND TRUE \read(tmp) [L326] tmp___0 = 0 [L330] retValue_acc = tmp___0 [L331] return (retValue_acc); [L199] tmp = isHighWaterLevel() [L201] COND FALSE !(\read(tmp)) [L903] int tmp ; [L904] int tmp___0 ; [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); [L908] tmp = getWaterLevel() [L910] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...