./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_64da3a55-4bc0-4900-bd5b-a37e39d43f86/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_64da3a55-4bc0-4900-bd5b-a37e39d43f86/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_64da3a55-4bc0-4900-bd5b-a37e39d43f86/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_64da3a55-4bc0-4900-bd5b-a37e39d43f86/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_64da3a55-4bc0-4900-bd5b-a37e39d43f86/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_64da3a55-4bc0-4900-bd5b-a37e39d43f86/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 7872b879cd758228927f78edb0db1dba14599e51 ............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-69874e2 [2020-12-01 15:33:32,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:33:32,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:33:32,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:33:32,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:33:32,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:33:32,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:33:32,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:33:32,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:33:32,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:33:32,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:33:32,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:33:32,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:33:32,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:33:32,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:33:32,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:33:32,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:33:32,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:33:32,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:33:32,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:33:32,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:33:32,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:33:32,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:33:32,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:33:32,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:33:32,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:33:32,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:33:32,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:33:32,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:33:32,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:33:32,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:33:32,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:33:32,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:33:32,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:33:32,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:33:32,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:33:32,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:33:32,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:33:32,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:33:32,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:33:32,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:33:32,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_64da3a55-4bc0-4900-bd5b-a37e39d43f86/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:33:32,537 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:33:32,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:33:32,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:33:32,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:33:32,546 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:33:32,546 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:33:32,548 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:33:32,548 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:33:32,548 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:33:32,549 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:33:32,550 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:33:32,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:33:32,552 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:33:32,552 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:33:32,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:33:32,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:33:32,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:33:32,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:33:32,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:33:32,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:33:32,554 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:33:32,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:33:32,555 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:33:32,555 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:33:32,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:33:32,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:33:32,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:33:32,557 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:33:32,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:33:32,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:33:32,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:33:32,560 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:33:32,563 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:33:32,564 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_64da3a55-4bc0-4900-bd5b-a37e39d43f86/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_64da3a55-4bc0-4900-bd5b-a37e39d43f86/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7872b879cd758228927f78edb0db1dba14599e51 [2020-12-01 15:33:32,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:33:32,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:33:32,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:33:32,959 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:33:32,963 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:33:32,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_64da3a55-4bc0-4900-bd5b-a37e39d43f86/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c [2020-12-01 15:33:33,103 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_64da3a55-4bc0-4900-bd5b-a37e39d43f86/bin/uautomizer/data/13aaa90f3/e0196ff049f64ba5bd28a1126e0feabb/FLAGc387f3dda [2020-12-01 15:33:33,881 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:33:33,882 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_64da3a55-4bc0-4900-bd5b-a37e39d43f86/sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c [2020-12-01 15:33:33,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_64da3a55-4bc0-4900-bd5b-a37e39d43f86/bin/uautomizer/data/13aaa90f3/e0196ff049f64ba5bd28a1126e0feabb/FLAGc387f3dda [2020-12-01 15:33:34,132 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_64da3a55-4bc0-4900-bd5b-a37e39d43f86/bin/uautomizer/data/13aaa90f3/e0196ff049f64ba5bd28a1126e0feabb [2020-12-01 15:33:34,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:33:34,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:33:34,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:33:34,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:33:34,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:33:34,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:33:34" (1/1) ... [2020-12-01 15:33:34,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb7ff08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:34, skipping insertion in model container [2020-12-01 15:33:34,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:33:34" (1/1) ... [2020-12-01 15:33:34,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:33:34,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:33:34,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:33:34,852 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:33:34,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:33:35,039 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:33:35,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:35 WrapperNode [2020-12-01 15:33:35,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:33:35,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:33:35,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:33:35,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:33:35,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:35" (1/1) ... [2020-12-01 15:33:35,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:35" (1/1) ... [2020-12-01 15:33:35,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:33:35,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:33:35,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:33:35,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:33:35,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:35" (1/1) ... [2020-12-01 15:33:35,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:35" (1/1) ... [2020-12-01 15:33:35,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:35" (1/1) ... [2020-12-01 15:33:35,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:35" (1/1) ... [2020-12-01 15:33:35,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:35" (1/1) ... [2020-12-01 15:33:35,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:35" (1/1) ... [2020-12-01 15:33:35,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:35" (1/1) ... [2020-12-01 15:33:35,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:33:35,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:33:35,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:33:35,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:33:35,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64da3a55-4bc0-4900-bd5b-a37e39d43f86/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 [2020-12-01 15:33:35,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:33:35,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:33:35,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:33:35,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:33:36,734 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:33:36,735 INFO L298 CfgBuilder]: Removed 164 assume(true) statements. [2020-12-01 15:33:36,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:33:36 BoogieIcfgContainer [2020-12-01 15:33:36,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:33:36,740 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:33:36,740 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:33:36,746 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:33:36,747 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:33:36,748 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:33:34" (1/3) ... [2020-12-01 15:33:36,750 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e8012b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:33:36, skipping insertion in model container [2020-12-01 15:33:36,751 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:33:36,751 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:35" (2/3) ... [2020-12-01 15:33:36,752 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e8012b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:33:36, skipping insertion in model container [2020-12-01 15:33:36,752 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:33:36,752 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:33:36" (3/3) ... [2020-12-01 15:33:36,755 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product38.cil.c [2020-12-01 15:33:36,822 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:33:36,823 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:33:36,823 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:33:36,823 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:33:36,824 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:33:36,824 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:33:36,824 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:33:36,824 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:33:36,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-12-01 15:33:36,885 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-12-01 15:33:36,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:33:36,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:33:36,900 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:33:36,900 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:36,900 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:33:36,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-12-01 15:33:36,911 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-12-01 15:33:36,912 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:33:36,912 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:33:36,914 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:33:36,914 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:36,922 INFO L794 eck$LassoCheckResult]: Stem: 89#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #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(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 12#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 75#L925true 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; 94#L933true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 95#L132true assume 0 != main_~tmp~0; 47#L105true havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 6#L263-1true [2020-12-01 15:33:36,923 INFO L796 eck$LassoCheckResult]: Loop: 6#L263-1true assume !false; 17#L293true assume test_~splverifierCounter~0 < 4; 97#L294true test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 112#L302true assume !(0 != test_~tmp~2); 110#L302-1true test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 30#L312true assume !(0 != test_~tmp___0~1); 32#L312-1true test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 87#L322true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 90#L330-2true assume !(0 != ~pumpRunning~0); 82#L358true assume !(0 != ~systemActive~0); 7#L365true havoc __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_#t~ret19, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 81#L226true __utac_acc__Specification4_spec__1_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret18;havoc __utac_acc__Specification4_spec__1_#t~ret18; 10#L263true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 6#L263-1true [2020-12-01 15:33:36,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:36,933 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-12-01 15:33:36,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:36,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544472613] [2020-12-01 15:33:36,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:33:37,315 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:33:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:33:37,522 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:33:37,614 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:33:37,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:37,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1679036347, now seen corresponding path program 1 times [2020-12-01 15:33:37,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:37,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862665013] [2020-12-01 15:33:37,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:37,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:33:37,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862665013] [2020-12-01 15:33:37,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:37,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:33:37,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828662066] [2020-12-01 15:33:37,752 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:33:37,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:37,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:33:37,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:33:37,778 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 3 states. [2020-12-01 15:33:37,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:37,875 INFO L93 Difference]: Finished difference Result 108 states and 155 transitions. [2020-12-01 15:33:37,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:33:37,879 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 155 transitions. [2020-12-01 15:33:37,885 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2020-12-01 15:33:37,894 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 101 states and 147 transitions. [2020-12-01 15:33:37,895 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2020-12-01 15:33:37,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2020-12-01 15:33:37,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 147 transitions. [2020-12-01 15:33:37,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:33:37,899 INFO L692 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2020-12-01 15:33:37,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 147 transitions. [2020-12-01 15:33:37,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-12-01 15:33:37,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-01 15:33:37,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2020-12-01 15:33:37,950 INFO L715 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2020-12-01 15:33:37,951 INFO L595 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2020-12-01 15:33:37,951 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:33:37,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 147 transitions. [2020-12-01 15:33:37,954 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2020-12-01 15:33:37,955 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:33:37,955 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:33:37,956 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:33:37,956 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:37,957 INFO L794 eck$LassoCheckResult]: Stem: 325#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #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(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 247#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 248#L925 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; 319#L933 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 327#L132 assume 0 != main_~tmp~0; 294#L105 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 237#L263-1 [2020-12-01 15:33:37,957 INFO L796 eck$LassoCheckResult]: Loop: 237#L263-1 assume !false; 238#L293 assume test_~splverifierCounter~0 < 4; 255#L294 test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 328#L302 assume !(0 != test_~tmp~2); 257#L302-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 272#L312 assume !(0 != test_~tmp___0~1); 273#L312-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 276#L322 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 321#L330-2 assume !(0 != ~pumpRunning~0); 311#L358 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret25, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 314#L416 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret24, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 315#L390-1 assume !(0 == ~pumpRunning~0); 230#L365 havoc __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_#t~ret19, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 239#L226 __utac_acc__Specification4_spec__1_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret18;havoc __utac_acc__Specification4_spec__1_#t~ret18; 244#L263 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 237#L263-1 [2020-12-01 15:33:37,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:37,958 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-12-01 15:33:37,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:37,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524681159] [2020-12-01 15:33:37,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:33:38,120 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:33:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:33:38,241 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:33:38,277 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:33:38,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:38,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1086510020, now seen corresponding path program 1 times [2020-12-01 15:33:38,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:38,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717180667] [2020-12-01 15:33:38,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:38,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:33:38,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717180667] [2020-12-01 15:33:38,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:38,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:33:38,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400685772] [2020-12-01 15:33:38,327 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:33:38,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:38,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:33:38,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:33:38,331 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. cyclomatic complexity: 48 Second operand 3 states. [2020-12-01 15:33:38,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:38,491 INFO L93 Difference]: Finished difference Result 142 states and 195 transitions. [2020-12-01 15:33:38,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:33:38,493 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 195 transitions. [2020-12-01 15:33:38,509 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2020-12-01 15:33:38,514 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 142 states and 195 transitions. [2020-12-01 15:33:38,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 142 [2020-12-01 15:33:38,519 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 142 [2020-12-01 15:33:38,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 142 states and 195 transitions. [2020-12-01 15:33:38,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:33:38,523 INFO L692 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2020-12-01 15:33:38,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states and 195 transitions. [2020-12-01 15:33:38,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2020-12-01 15:33:38,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-12-01 15:33:38,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2020-12-01 15:33:38,550 INFO L715 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2020-12-01 15:33:38,550 INFO L595 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2020-12-01 15:33:38,551 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:33:38,551 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 195 transitions. [2020-12-01 15:33:38,555 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2020-12-01 15:33:38,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:33:38,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:33:38,560 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:33:38,560 INFO L854 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] [2020-12-01 15:33:38,561 INFO L794 eck$LassoCheckResult]: Stem: 580#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #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(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 496#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 497#L925 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; 572#L933 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 582#L132 assume 0 != main_~tmp~0; 543#L105 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 486#L263-1 [2020-12-01 15:33:38,561 INFO L796 eck$LassoCheckResult]: Loop: 486#L263-1 assume !false; 487#L293 assume test_~splverifierCounter~0 < 4; 504#L294 test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 583#L302 assume !(0 != test_~tmp~2); 506#L302-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 521#L312 assume !(0 != test_~tmp___0~1); 522#L312-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 525#L322 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 576#L330-2 assume !(0 != ~pumpRunning~0); 575#L358 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret25, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 567#L416 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret24, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 568#L390-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret43, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 569#L234-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 570#L239-1 isHighWaterLevel_#t~ret43 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret43;havoc isHighWaterLevel_#t~ret43; 540#L518-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~2 := 0; 541#L518-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 530#L524-1 processEnvironment__wrappee__highWaterSensor_#t~ret24 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret24;havoc processEnvironment__wrappee__highWaterSensor_#t~ret24; 531#L394-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 479#L365 havoc __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_#t~ret19, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 488#L226 __utac_acc__Specification4_spec__1_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret18;havoc __utac_acc__Specification4_spec__1_#t~ret18; 493#L263 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 486#L263-1 [2020-12-01 15:33:38,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:38,566 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-12-01 15:33:38,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:38,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710477776] [2020-12-01 15:33:38,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:33:38,666 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:33:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:33:38,763 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:33:38,794 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:33:38,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:38,795 INFO L82 PathProgramCache]: Analyzing trace with hash -849194648, now seen corresponding path program 1 times [2020-12-01 15:33:38,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:38,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420680297] [2020-12-01 15:33:38,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:33:38,821 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:33:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:33:38,835 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:33:38,850 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:33:38,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:38,858 INFO L82 PathProgramCache]: Analyzing trace with hash -393123454, now seen corresponding path program 1 times [2020-12-01 15:33:38,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:38,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990958335] [2020-12-01 15:33:38,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:33:38,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:33:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:33:39,000 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:33:39,031 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:33:39,215 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-12-01 15:35:27,908 WARN L197 SmtUtils]: Spent 1.81 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-12-01 15:36:27,389 WARN L197 SmtUtils]: Spent 59.43 s on a formula simplification that was a NOOP. DAG size: 433 [2020-12-01 15:36:27,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:36:27 BoogieIcfgContainer [2020-12-01 15:36:27,616 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:36:27,617 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:36:27,617 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:36:27,618 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:36:27,618 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:33:36" (3/4) ... [2020-12-01 15:36:27,621 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-12-01 15:36:27,678 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_64da3a55-4bc0-4900-bd5b-a37e39d43f86/bin/uautomizer/witness.graphml [2020-12-01 15:36:27,678 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:36:27,680 INFO L168 Benchmark]: Toolchain (without parser) took 173537.47 ms. Allocated memory was 90.2 MB in the beginning and 136.3 MB in the end (delta: 46.1 MB). Free memory was 56.7 MB in the beginning and 76.4 MB in the end (delta: -19.7 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:36:27,680 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 90.2 MB. Free memory was 67.8 MB in the beginning and 67.8 MB in the end (delta: 30.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:36:27,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 886.95 ms. Allocated memory is still 90.2 MB. Free memory was 56.5 MB in the beginning and 56.9 MB in the end (delta: -412.0 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:36:27,682 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.20 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 53.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:36:27,682 INFO L168 Benchmark]: Boogie Preprocessor took 83.60 ms. Allocated memory is still 90.2 MB. Free memory was 53.5 MB in the beginning and 51.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:36:27,683 INFO L168 Benchmark]: RCFGBuilder took 1503.90 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 50.6 MB in the beginning and 85.7 MB in the end (delta: -35.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:36:27,684 INFO L168 Benchmark]: BuchiAutomizer took 170876.68 ms. Allocated memory was 111.1 MB in the beginning and 136.3 MB in the end (delta: 25.2 MB). Free memory was 85.7 MB in the beginning and 78.5 MB in the end (delta: 7.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:36:27,684 INFO L168 Benchmark]: Witness Printer took 61.33 ms. Allocated memory is still 136.3 MB. Free memory was 78.5 MB in the beginning and 76.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:36:27,688 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 90.2 MB. Free memory was 67.8 MB in the beginning and 67.8 MB in the end (delta: 30.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 886.95 ms. Allocated memory is still 90.2 MB. Free memory was 56.5 MB in the beginning and 56.9 MB in the end (delta: -412.0 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.20 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 53.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.60 ms. Allocated memory is still 90.2 MB. Free memory was 53.5 MB in the beginning and 51.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1503.90 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 50.6 MB in the beginning and 85.7 MB in the end (delta: -35.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 170876.68 ms. Allocated memory was 111.1 MB in the beginning and 136.3 MB in the end (delta: 25.2 MB). Free memory was 85.7 MB in the beginning and 78.5 MB in the end (delta: 7.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 16.1 GB. * Witness Printer took 61.33 ms. Allocated memory is still 136.3 MB. Free memory was 78.5 MB in the beginning and 76.4 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 142 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 170.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 170.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 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: 301 SDtfs, 255 SDslu, 57 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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: 292]: 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, NULL=1, NULL=22055, NULL=0, NULL=22036, NULL=22052, methaneLevelCritical=0, retValue_acc=1, tmp=0, NULL=0, tmp___1=0, retValue_acc=0, NULL=0, NULL=22043, cleanupTimeShifts=4, NULL=22041, NULL=22038, waterLevel=1, NULL=0, NULL=0, retValue_acc=1, \result=1, head=0, pumpRunning=0, tmp=1, NULL=22057, retValue_acc=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2df8cd9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@782bf2c3=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ff2d57d=85, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73855ff4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7be0461a=0, tmp=1, NULL=0, NULL=0, NULL=22056, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=22047, tmp___0=0, NULL=22051, NULL=22060, NULL=22034, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6776d85d=0, head=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b3b405a=0, NULL=0, NULL=22042, NULL=22044, NULL=22037, NULL=22046, NULL=0, retValue_acc=0, NULL=0, NULL=22049, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c645822=0, NULL=22040, NULL=22054, tmp___0=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=22058, tmp=0, NULL=22045, NULL=0, systemActive=1, \result=1, NULL=0, \result=0, NULL=22033, \result=0, NULL=22048, NULL=0, NULL=0, NULL=22053, NULL=22050, tmp___2=85, splverifierCounter=0, NULL=0, NULL=0, NULL=22035, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@608324b3=0, NULL=22039, NULL=0, NULL=0, NULL=22059, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@384a961=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L151] int waterLevel = 1; [L152] int methaneLevelCritical = 0; [L351] int pumpRunning = 0; [L352] int systemActive = 1; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L929] int retValue_acc ; [L932] retValue_acc = 1 [L933] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L283] int splverifierCounter ; [L284] int tmp ; [L285] int tmp___0 ; [L286] int tmp___1 ; [L287] int tmp___2 ; [L290] splverifierCounter = 0 Loop: [L292] COND TRUE 1 [L294] COND TRUE splverifierCounter < 4 [L300] tmp = __VERIFIER_nondet_int() [L302] COND FALSE !(\read(tmp)) [L310] tmp___0 = __VERIFIER_nondet_int() [L312] COND FALSE !(\read(tmp___0)) [L320] tmp___2 = __VERIFIER_nondet_int() [L322] COND TRUE \read(tmp___2) [L532] systemActive = 1 [L358] COND FALSE !(\read(pumpRunning)) [L365] COND TRUE \read(systemActive) [L413] int tmp ; [L416] COND FALSE !(\read(pumpRunning)) [L387] int tmp ; [L390] COND TRUE ! pumpRunning [L510] int retValue_acc ; [L511] int tmp ; [L512] int tmp___0 ; [L231] int retValue_acc ; [L234] COND TRUE waterLevel < 2 [L235] retValue_acc = 1 [L236] return (retValue_acc); [L516] tmp = isHighWaterSensorDry() [L518] COND TRUE \read(tmp) [L519] tmp___0 = 0 [L523] retValue_acc = tmp___0 [L524] return (retValue_acc); [L392] tmp = isHighWaterLevel() [L394] COND FALSE !(\read(tmp)) [L256] int tmp ; [L257] int tmp___0 ; [L222] int retValue_acc ; [L225] retValue_acc = waterLevel [L226] return (retValue_acc); [L261] tmp = getWaterLevel() [L263] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...