./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product40.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_883a02cd-f958-44e2-b965-3ce60d5d49db/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_883a02cd-f958-44e2-b965-3ce60d5d49db/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_883a02cd-f958-44e2-b965-3ce60d5d49db/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_883a02cd-f958-44e2-b965-3ce60d5d49db/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_883a02cd-f958-44e2-b965-3ce60d5d49db/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_883a02cd-f958-44e2-b965-3ce60d5d49db/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 10c62355b958c28dceaa55313714ee80b90c1fad ............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 [2020-11-30 01:14:28,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:14:28,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:14:28,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:14:28,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:14:28,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:14:28,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:14:28,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:14:28,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:14:28,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:14:28,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:14:28,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:14:28,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:14:28,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:14:28,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:14:28,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:14:28,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:14:28,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:14:28,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:14:28,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:14:28,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:14:28,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:14:28,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:14:28,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:14:28,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:14:28,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:14:28,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:14:28,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:14:28,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:14:28,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:14:28,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:14:28,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:14:28,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:14:28,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:14:28,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:14:28,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:14:28,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:14:28,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:14:28,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:14:28,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:14:28,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:14:28,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_883a02cd-f958-44e2-b965-3ce60d5d49db/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:14:28,645 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:14:28,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:14:28,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:14:28,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:14:28,648 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:14:28,648 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:14:28,648 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:14:28,649 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:14:28,649 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:14:28,649 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:14:28,650 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:14:28,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:14:28,651 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:14:28,651 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:14:28,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:14:28,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:14:28,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:14:28,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:14:28,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:14:28,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:14:28,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:14:28,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:14:28,653 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:14:28,653 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:14:28,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:14:28,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:14:28,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:14:28,654 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:14:28,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:14:28,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:14:28,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:14:28,655 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:14:28,656 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:14:28,657 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_883a02cd-f958-44e2-b965-3ce60d5d49db/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_883a02cd-f958-44e2-b965-3ce60d5d49db/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10c62355b958c28dceaa55313714ee80b90c1fad [2020-11-30 01:14:28,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:14:29,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:14:29,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:14:29,044 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:14:29,045 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:14:29,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_883a02cd-f958-44e2-b965-3ce60d5d49db/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c [2020-11-30 01:14:29,132 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_883a02cd-f958-44e2-b965-3ce60d5d49db/bin/uautomizer/data/559e6b6fd/e4e516e503aa4d338e230801333e4db5/FLAG26c3ddab9 [2020-11-30 01:14:29,885 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:14:29,886 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_883a02cd-f958-44e2-b965-3ce60d5d49db/sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c [2020-11-30 01:14:29,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_883a02cd-f958-44e2-b965-3ce60d5d49db/bin/uautomizer/data/559e6b6fd/e4e516e503aa4d338e230801333e4db5/FLAG26c3ddab9 [2020-11-30 01:14:30,154 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_883a02cd-f958-44e2-b965-3ce60d5d49db/bin/uautomizer/data/559e6b6fd/e4e516e503aa4d338e230801333e4db5 [2020-11-30 01:14:30,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:14:30,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:14:30,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:14:30,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:14:30,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:14:30,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:14:30" (1/1) ... [2020-11-30 01:14:30,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d24ccc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:30, skipping insertion in model container [2020-11-30 01:14:30,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:14:30" (1/1) ... [2020-11-30 01:14:30,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:14:30,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:14:30,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:14:30,651 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:14:30,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:14:30,801 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:14:30,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:30 WrapperNode [2020-11-30 01:14:30,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:14:30,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:14:30,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:14:30,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:14:30,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:30" (1/1) ... [2020-11-30 01:14:30,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:30" (1/1) ... [2020-11-30 01:14:30,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:14:30,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:14:30,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:14:30,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:14:30,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:30" (1/1) ... [2020-11-30 01:14:30,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:30" (1/1) ... [2020-11-30 01:14:30,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:30" (1/1) ... [2020-11-30 01:14:30,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:30" (1/1) ... [2020-11-30 01:14:30,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:30" (1/1) ... [2020-11-30 01:14:30,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:30" (1/1) ... [2020-11-30 01:14:30,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:30" (1/1) ... [2020-11-30 01:14:30,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:14:30,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:14:30,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:14:30,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:14:30,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_883a02cd-f958-44e2-b965-3ce60d5d49db/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 [2020-11-30 01:14:31,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:14:31,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:14:31,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:14:31,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:14:32,312 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:14:32,314 INFO L298 CfgBuilder]: Removed 168 assume(true) statements. [2020-11-30 01:14:32,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:14:32 BoogieIcfgContainer [2020-11-30 01:14:32,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:14:32,318 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:14:32,318 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:14:32,323 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:14:32,324 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:14:32,324 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:14:30" (1/3) ... [2020-11-30 01:14:32,328 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ccab104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:14:32, skipping insertion in model container [2020-11-30 01:14:32,328 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:14:32,328 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:30" (2/3) ... [2020-11-30 01:14:32,329 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ccab104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:14:32, skipping insertion in model container [2020-11-30 01:14:32,329 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:14:32,329 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:14:32" (3/3) ... [2020-11-30 01:14:32,333 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product40.cil.c [2020-11-30 01:14:32,395 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:14:32,395 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:14:32,395 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:14:32,395 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:14:32,396 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:14:32,396 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:14:32,396 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:14:32,396 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:14:32,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2020-11-30 01:14:32,446 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-30 01:14:32,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:14:32,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:14:32,454 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:14:32,454 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:32,454 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:14:32,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2020-11-30 01:14:32,466 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-30 01:14:32,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:14:32,466 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:14:32,467 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:14:32,467 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:32,472 INFO L794 eck$LassoCheckResult]: Stem: 80#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.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~ret31, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 87#L944true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 91#L952true main_#t~ret31 := valid_product_#res;main_~tmp~4 := main_#t~ret31;havoc main_#t~ret31; 89#L421true assume 0 != main_~tmp~4; 32#L395true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 43#L904-1true [2020-11-30 01:14:32,473 INFO L796 eck$LassoCheckResult]: Loop: 43#L904-1true assume !false; 28#L59true assume test_~splverifierCounter~0 < 4; 92#L60true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 115#L68true assume !(0 != test_~tmp~0); 114#L68-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 63#L78true assume !(0 != test_~tmp___0~0); 61#L78-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 86#L88true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 95#L96-1true assume !(0 != ~pumpRunning~0); 51#L133true assume !(0 != ~systemActive~0); 100#L140true havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 10#L511true __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 41#L904true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 43#L904-1true [2020-11-30 01:14:32,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:32,493 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 01:14:32,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:32,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382041148] [2020-11-30 01:14:32,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:32,806 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:33,005 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:33,070 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:14:33,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:33,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1670447602, now seen corresponding path program 1 times [2020-11-30 01:14:33,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:33,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981646797] [2020-11-30 01:14:33,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:14:33,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:14:33,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981646797] [2020-11-30 01:14:33,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:14:33,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:14:33,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792994870] [2020-11-30 01:14:33,154 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:14:33,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:14:33,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:14:33,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:14:33,176 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 3 states. [2020-11-30 01:14:33,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:14:33,281 INFO L93 Difference]: Finished difference Result 214 states and 312 transitions. [2020-11-30 01:14:33,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:14:33,286 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 214 states and 312 transitions. [2020-11-30 01:14:33,296 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 138 [2020-11-30 01:14:33,317 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 214 states to 200 states and 297 transitions. [2020-11-30 01:14:33,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 200 [2020-11-30 01:14:33,321 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 200 [2020-11-30 01:14:33,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 200 states and 297 transitions. [2020-11-30 01:14:33,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:14:33,326 INFO L691 BuchiCegarLoop]: Abstraction has 200 states and 297 transitions. [2020-11-30 01:14:33,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states and 297 transitions. [2020-11-30 01:14:33,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 198. [2020-11-30 01:14:33,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-30 01:14:33,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 294 transitions. [2020-11-30 01:14:33,404 INFO L714 BuchiCegarLoop]: Abstraction has 198 states and 294 transitions. [2020-11-30 01:14:33,404 INFO L594 BuchiCegarLoop]: Abstraction has 198 states and 294 transitions. [2020-11-30 01:14:33,405 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:14:33,405 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states and 294 transitions. [2020-11-30 01:14:33,418 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 136 [2020-11-30 01:14:33,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:14:33,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:14:33,419 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:14:33,420 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:33,420 INFO L794 eck$LassoCheckResult]: Stem: 429#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.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; 351#L-1 havoc main_#res;havoc main_#t~ret31, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 352#L944 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 436#L952 main_#t~ret31 := valid_product_#res;main_~tmp~4 := main_#t~ret31;havoc main_#t~ret31; 438#L421 assume 0 != main_~tmp~4; 393#L395 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, 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; 394#L904-1 [2020-11-30 01:14:33,420 INFO L796 eck$LassoCheckResult]: Loop: 394#L904-1 assume !false; 384#L59 assume test_~splverifierCounter~0 < 4; 385#L60 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 439#L68 assume !(0 != test_~tmp~0); 433#L68-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 423#L78 assume !(0 != test_~tmp___0~0); 420#L78-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 421#L88 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 434#L96-1 assume !(0 != ~pumpRunning~0); 374#L133 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 411#L191 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 471#L165-1 assume !(0 == ~pumpRunning~0); 444#L140 havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 349#L511 __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 350#L904 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 394#L904-1 [2020-11-30 01:14:33,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:33,422 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 01:14:33,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:33,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148349177] [2020-11-30 01:14:33,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:33,530 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:33,651 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:33,686 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:14:33,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:33,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1422660379, now seen corresponding path program 1 times [2020-11-30 01:14:33,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:33,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721643151] [2020-11-30 01:14:33,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:14:33,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:14:33,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721643151] [2020-11-30 01:14:33,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:14:33,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:14:33,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521653150] [2020-11-30 01:14:33,725 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:14:33,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:14:33,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:14:33,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:14:33,726 INFO L87 Difference]: Start difference. First operand 198 states and 294 transitions. cyclomatic complexity: 99 Second operand 3 states. [2020-11-30 01:14:33,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:14:33,954 INFO L93 Difference]: Finished difference Result 281 states and 394 transitions. [2020-11-30 01:14:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:14:33,956 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 281 states and 394 transitions. [2020-11-30 01:14:33,961 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2020-11-30 01:14:33,971 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 281 states to 281 states and 394 transitions. [2020-11-30 01:14:33,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 281 [2020-11-30 01:14:33,974 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 281 [2020-11-30 01:14:33,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 281 states and 394 transitions. [2020-11-30 01:14:33,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:14:33,982 INFO L691 BuchiCegarLoop]: Abstraction has 281 states and 394 transitions. [2020-11-30 01:14:33,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states and 394 transitions. [2020-11-30 01:14:33,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2020-11-30 01:14:34,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-11-30 01:14:34,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 394 transitions. [2020-11-30 01:14:34,002 INFO L714 BuchiCegarLoop]: Abstraction has 281 states and 394 transitions. [2020-11-30 01:14:34,002 INFO L594 BuchiCegarLoop]: Abstraction has 281 states and 394 transitions. [2020-11-30 01:14:34,002 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:14:34,003 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 281 states and 394 transitions. [2020-11-30 01:14:34,006 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2020-11-30 01:14:34,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:14:34,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:14:34,008 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:14:34,008 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] [2020-11-30 01:14:34,008 INFO L794 eck$LassoCheckResult]: Stem: 926#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.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; 836#L-1 havoc main_#res;havoc main_#t~ret31, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 837#L944 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 933#L952 main_#t~ret31 := valid_product_#res;main_~tmp~4 := main_#t~ret31;havoc main_#t~ret31; 935#L421 assume 0 != main_~tmp~4; 878#L395 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, 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; 879#L904-1 [2020-11-30 01:14:34,009 INFO L796 eck$LassoCheckResult]: Loop: 879#L904-1 assume !false; 996#L59 assume test_~splverifierCounter~0 < 4; 995#L60 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 992#L68 assume !(0 != test_~tmp~0); 989#L68-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 967#L78 assume !(0 != test_~tmp___0~0); 966#L78-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 960#L88 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 939#L96-1 assume !(0 != ~pumpRunning~0); 900#L133 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 901#L191 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 1015#L165-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1016#L519-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1014#L524-1 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 1012#L293-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 1011#L293-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 838#L299-1 processEnvironment__wrappee__highWaterSensor_#t~ret11 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret11;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11; 839#L169-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 881#L140 havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 979#L511 __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 980#L904 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 879#L904-1 [2020-11-30 01:14:34,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:34,010 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 01:14:34,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:34,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945773] [2020-11-30 01:14:34,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:34,066 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:34,162 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:34,185 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:14:34,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:34,187 INFO L82 PathProgramCache]: Analyzing trace with hash 287627953, now seen corresponding path program 1 times [2020-11-30 01:14:34,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:34,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978498137] [2020-11-30 01:14:34,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:34,200 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:34,209 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:34,214 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:14:34,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:34,215 INFO L82 PathProgramCache]: Analyzing trace with hash 743699147, now seen corresponding path program 1 times [2020-11-30 01:14:34,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:34,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103087036] [2020-11-30 01:14:34,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:34,291 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:34,345 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:34,373 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:14:34,576 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-30 01:16:09,913 WARN L193 SmtUtils]: Spent 1.59 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 01:17:15,071 WARN L193 SmtUtils]: Spent 1.09 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 01:17:15,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:17:15 BoogieIcfgContainer [2020-11-30 01:17:15,302 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:17:15,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:17:15,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:17:15,303 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:17:15,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:14:32" (3/4) ... [2020-11-30 01:17:15,307 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:17:15,370 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_883a02cd-f958-44e2-b965-3ce60d5d49db/bin/uautomizer/witness.graphml [2020-11-30 01:17:15,378 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:17:15,379 INFO L168 Benchmark]: Toolchain (without parser) took 165219.95 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 102.7 MB in the beginning and 68.9 MB in the end (delta: 33.8 MB). Peak memory consumption was 59.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:15,381 INFO L168 Benchmark]: CDTParser took 0.98 ms. Allocated memory is still 83.9 MB. Free memory is still 42.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:17:15,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.51 ms. Allocated memory is still 130.0 MB. Free memory was 102.4 MB in the beginning and 96.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:15,385 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.65 ms. Allocated memory is still 130.0 MB. Free memory was 96.9 MB in the beginning and 93.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:15,385 INFO L168 Benchmark]: Boogie Preprocessor took 51.26 ms. Allocated memory is still 130.0 MB. Free memory was 93.4 MB in the beginning and 90.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:15,385 INFO L168 Benchmark]: RCFGBuilder took 1372.34 ms. Allocated memory is still 130.0 MB. Free memory was 90.6 MB in the beginning and 69.4 MB in the end (delta: 21.2 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:15,386 INFO L168 Benchmark]: BuchiAutomizer took 162984.29 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 69.4 MB in the beginning and 71.0 MB in the end (delta: -1.6 MB). Peak memory consumption was 61.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:15,387 INFO L168 Benchmark]: Witness Printer took 74.96 ms. Allocated memory is still 157.3 MB. Free memory was 71.0 MB in the beginning and 68.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:15,389 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98 ms. Allocated memory is still 83.9 MB. Free memory is still 42.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 638.51 ms. Allocated memory is still 130.0 MB. Free memory was 102.4 MB in the beginning and 96.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.65 ms. Allocated memory is still 130.0 MB. Free memory was 96.9 MB in the beginning and 93.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.26 ms. Allocated memory is still 130.0 MB. Free memory was 93.4 MB in the beginning and 90.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1372.34 ms. Allocated memory is still 130.0 MB. Free memory was 90.6 MB in the beginning and 69.4 MB in the end (delta: 21.2 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 162984.29 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 69.4 MB in the beginning and 71.0 MB in the end (delta: -1.6 MB). Peak memory consumption was 61.3 MB. Max. memory is 16.1 GB. * Witness Printer took 74.96 ms. Allocated memory is still 157.3 MB. Free memory was 71.0 MB in the beginning and 68.9 MB in the end (delta: 2.1 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 3 locations. The remainder module has 281 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 162.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 162.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 281 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 306 SDtfs, 262 SDslu, 206 SDs, 0 SdLazy, 41 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 58]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5087} State at position 1 is {NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a93dbeb=78, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26d958e2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46fce628=0, NULL=5087, NULL=5098, NULL=0, NULL=0, NULL=5114, methaneLevelCritical=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59f2d629=0, NULL=5105, retValue_acc=0, tmp___1=0, NULL=5088, NULL=5112, NULL=0, NULL=5099, cleanupTimeShifts=4, tmp=0, NULL=5095, NULL=0, NULL=0, waterLevel=1, tmp___0=0, NULL=5101, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=5108, tmp=1, NULL=0, NULL=0, NULL=0, \result=1, NULL=5103, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13765578=0, tmp=1, retValue_acc=1, NULL=5113, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6458dcef=0, head=0, NULL=5110, NULL=0, NULL=0, NULL=5104, NULL=5090, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1eb4145e=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c49b9db=0, NULL=0, NULL=5106, NULL=5107, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21ccd8af=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12d4c0ef=0, NULL=5091, tmp___0=0, NULL=0, NULL=0, NULL=5100, NULL=0, tmp=0, NULL=5111, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=5109, \result=1, \result=0, NULL=5089, \result=0, NULL=5097, NULL=0, NULL=0, NULL=5092, NULL=0, NULL=5093, tmp___2=78, splverifierCounter=0, NULL=0, NULL=5094, NULL=5115, NULL=5096, NULL=5102} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L125] int pumpRunning = 0; [L126] int systemActive = 1; [L336] int cleanupTimeShifts = 4; [L436] int waterLevel = 1; [L437] int methaneLevelCritical = 0; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L412] int retValue_acc ; [L413] int tmp ; [L948] int retValue_acc ; [L951] retValue_acc = 1 [L952] return (retValue_acc); [L419] tmp = valid_product() [L421] COND TRUE \read(tmp) [L49] int splverifierCounter ; [L50] int tmp ; [L51] int tmp___0 ; [L52] int tmp___1 ; [L53] int tmp___2 ; [L56] splverifierCounter = 0 Loop: [L58] COND TRUE 1 [L60] COND TRUE splverifierCounter < 4 [L66] tmp = __VERIFIER_nondet_int() [L68] COND FALSE !(\read(tmp)) [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND TRUE \read(tmp___2) [L322] systemActive = 1 [L133] COND FALSE !(\read(pumpRunning)) [L140] COND TRUE \read(systemActive) [L188] int tmp ; [L191] COND FALSE !(\read(pumpRunning)) [L162] int tmp ; [L165] COND TRUE ! pumpRunning [L285] int retValue_acc ; [L286] int tmp ; [L287] int tmp___0 ; [L516] int retValue_acc ; [L519] COND TRUE waterLevel < 2 [L520] retValue_acc = 1 [L521] return (retValue_acc); [L291] tmp = isHighWaterSensorDry() [L293] COND TRUE \read(tmp) [L294] tmp___0 = 0 [L298] retValue_acc = tmp___0 [L299] return (retValue_acc); [L167] tmp = isHighWaterLevel() [L169] COND FALSE !(\read(tmp)) [L897] int tmp ; [L898] int tmp___0 ; [L507] int retValue_acc ; [L510] retValue_acc = waterLevel [L511] return (retValue_acc); [L902] tmp = getWaterLevel() [L904] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...