./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product53.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_6baa0b66-00bf-4076-b201-f904e8f29d9a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6baa0b66-00bf-4076-b201-f904e8f29d9a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6baa0b66-00bf-4076-b201-f904e8f29d9a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6baa0b66-00bf-4076-b201-f904e8f29d9a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6baa0b66-00bf-4076-b201-f904e8f29d9a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6baa0b66-00bf-4076-b201-f904e8f29d9a/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 1934598361bf90cf9fb238c58075a62a8c7d160a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:53:57,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:53:57,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:53:57,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:53:57,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:53:57,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:53:57,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:53:57,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:53:57,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:53:57,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:53:57,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:53:57,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:53:57,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:53:57,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:53:57,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:53:57,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:53:57,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:53:57,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:53:57,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:53:57,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:53:57,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:53:57,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:53:57,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:53:57,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:53:57,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:53:57,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:53:57,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:53:57,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:53:57,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:53:57,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:53:57,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:53:57,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:53:57,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:53:57,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:53:57,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:53:57,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:53:57,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:53:57,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:53:57,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:53:57,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:53:57,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:53:57,808 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6baa0b66-00bf-4076-b201-f904e8f29d9a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:53:57,839 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:53:57,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:53:57,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:53:57,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:53:57,843 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:53:57,843 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:53:57,844 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:53:57,844 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:53:57,845 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:53:57,845 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:53:57,846 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:53:57,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:53:57,847 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:53:57,847 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:53:57,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:53:57,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:53:57,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:53:57,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:53:57,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:53:57,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:53:57,851 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:53:57,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:53:57,852 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:53:57,852 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:53:57,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:53:57,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:53:57,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:53:57,854 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:53:57,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:53:57,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:53:57,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:53:57,855 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:53:57,856 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:53:57,857 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_6baa0b66-00bf-4076-b201-f904e8f29d9a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6baa0b66-00bf-4076-b201-f904e8f29d9a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1934598361bf90cf9fb238c58075a62a8c7d160a [2020-11-29 19:53:58,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:53:58,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:53:58,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:53:58,216 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:53:58,217 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:53:58,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6baa0b66-00bf-4076-b201-f904e8f29d9a/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2020-11-29 19:53:58,313 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6baa0b66-00bf-4076-b201-f904e8f29d9a/bin/uautomizer/data/26620ceeb/58766b41c4364ec09fff936b163dba4b/FLAG4729c8f86 [2020-11-29 19:53:59,108 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:53:59,113 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6baa0b66-00bf-4076-b201-f904e8f29d9a/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2020-11-29 19:53:59,136 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6baa0b66-00bf-4076-b201-f904e8f29d9a/bin/uautomizer/data/26620ceeb/58766b41c4364ec09fff936b163dba4b/FLAG4729c8f86 [2020-11-29 19:53:59,348 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6baa0b66-00bf-4076-b201-f904e8f29d9a/bin/uautomizer/data/26620ceeb/58766b41c4364ec09fff936b163dba4b [2020-11-29 19:53:59,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:53:59,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:53:59,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:53:59,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:53:59,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:53:59,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:53:59" (1/1) ... [2020-11-29 19:53:59,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4baeef6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:59, skipping insertion in model container [2020-11-29 19:53:59,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:53:59" (1/1) ... [2020-11-29 19:53:59,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:53:59,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:53:59,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:53:59,871 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:53:59,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:54:00,017 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:54:00,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:00 WrapperNode [2020-11-29 19:54:00,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:54:00,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:54:00,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:54:00,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:54:00,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:00" (1/1) ... [2020-11-29 19:54:00,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:00" (1/1) ... [2020-11-29 19:54:00,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:54:00,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:54:00,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:54:00,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:54:00,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:00" (1/1) ... [2020-11-29 19:54:00,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:00" (1/1) ... [2020-11-29 19:54:00,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:00" (1/1) ... [2020-11-29 19:54:00,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:00" (1/1) ... [2020-11-29 19:54:00,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:00" (1/1) ... [2020-11-29 19:54:00,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:00" (1/1) ... [2020-11-29 19:54:00,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:00" (1/1) ... [2020-11-29 19:54:00,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:54:00,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:54:00,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:54:00,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:54:00,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6baa0b66-00bf-4076-b201-f904e8f29d9a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:54:00,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:54:00,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:54:00,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:54:00,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:54:02,307 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:54:02,308 INFO L298 CfgBuilder]: Removed 282 assume(true) statements. [2020-11-29 19:54:02,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:54:02 BoogieIcfgContainer [2020-11-29 19:54:02,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:54:02,312 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:54:02,312 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:54:02,323 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:54:02,324 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:54:02,324 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:53:59" (1/3) ... [2020-11-29 19:54:02,330 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36be6b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:54:02, skipping insertion in model container [2020-11-29 19:54:02,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:54:02,330 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:00" (2/3) ... [2020-11-29 19:54:02,331 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36be6b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:54:02, skipping insertion in model container [2020-11-29 19:54:02,331 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:54:02,331 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:54:02" (3/3) ... [2020-11-29 19:54:02,333 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2020-11-29 19:54:02,407 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:54:02,407 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:54:02,407 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:54:02,407 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:54:02,408 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:54:02,408 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:54:02,408 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:54:02,408 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:54:02,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 189 states. [2020-11-29 19:54:02,470 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2020-11-29 19:54:02,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:54:02,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:54:02,481 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:54:02,481 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:54:02,481 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:54:02,482 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 189 states. [2020-11-29 19:54:02,497 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2020-11-29 19:54:02,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:54:02,497 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:54:02,499 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:54:02,499 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:54:02,506 INFO L794 eck$LassoCheckResult]: Stem: 172#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 23#L-1true havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 170#L735true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 174#L743true main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 130#L969true assume 0 != main_~tmp~10; 186#L946true havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 178#L869-1true [2020-11-29 19:54:02,507 INFO L796 eck$LassoCheckResult]: Loop: 178#L869-1true assume !false; 187#L423true assume test_~splverifierCounter~0 < 4; 136#L424true test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 176#L432true assume !(0 != test_~tmp~3); 177#L432-1true test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 37#L442true assume !(0 != test_~tmp___0~0); 6#L442-1true test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 80#L452true assume 0 != test_~tmp___2~0; 47#L458-2true assume !(0 != ~pumpRunning~0); 41#L494true assume !(0 != ~systemActive~0); 168#L501true havoc __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_#t~ret80, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 14#L833true __utac_acc__Specification4_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret79;havoc __utac_acc__Specification4_spec__1_#t~ret79; 191#L869true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 178#L869-1true [2020-11-29 19:54:02,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:54:02,514 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 19:54:02,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:54:02,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126757855] [2020-11-29 19:54:02,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:54:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:54:02,797 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:54:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:54:02,976 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:54:03,038 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:54:03,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:54:03,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1676481276, now seen corresponding path program 1 times [2020-11-29 19:54:03,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:54:03,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624226160] [2020-11-29 19:54:03,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:54:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:54:03,049 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:54:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:54:03,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:54:03,081 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:54:03,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:54:03,083 INFO L82 PathProgramCache]: Analyzing trace with hash 37797662, now seen corresponding path program 1 times [2020-11-29 19:54:03,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:54:03,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968735384] [2020-11-29 19:54:03,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:54:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:54:03,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:54:03,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968735384] [2020-11-29 19:54:03,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:54:03,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:54:03,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812254025] [2020-11-29 19:54:03,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:54:03,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:54:03,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:54:03,523 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 6 states. [2020-11-29 19:54:03,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:54:03,847 INFO L93 Difference]: Finished difference Result 186 states and 274 transitions. [2020-11-29 19:54:03,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:54:03,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 186 states and 274 transitions. [2020-11-29 19:54:03,862 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2020-11-29 19:54:03,877 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 186 states to 179 states and 267 transitions. [2020-11-29 19:54:03,880 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 179 [2020-11-29 19:54:03,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 179 [2020-11-29 19:54:03,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 179 states and 267 transitions. [2020-11-29 19:54:03,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:54:03,890 INFO L691 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2020-11-29 19:54:03,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states and 267 transitions. [2020-11-29 19:54:03,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2020-11-29 19:54:03,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-11-29 19:54:03,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 267 transitions. [2020-11-29 19:54:03,964 INFO L714 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2020-11-29 19:54:03,964 INFO L594 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2020-11-29 19:54:03,964 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:54:03,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 179 states and 267 transitions. [2020-11-29 19:54:03,974 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2020-11-29 19:54:03,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:54:03,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:54:03,977 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:54:03,977 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:54:03,977 INFO L794 eck$LassoCheckResult]: Stem: 567#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 432#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 433#L735 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 566#L743 main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 547#L969 assume 0 != main_~tmp~10; 548#L946 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 518#L869-1 [2020-11-29 19:54:03,978 INFO L796 eck$LassoCheckResult]: Loop: 518#L869-1 assume !false; 570#L423 assume test_~splverifierCounter~0 < 4; 551#L424 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 552#L432 assume !(0 != test_~tmp~3); 569#L432-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 462#L442 assume !(0 != test_~tmp___0~0); 400#L442-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 401#L452 assume 0 != test_~tmp___2~0; 477#L458-2 assume !(0 != ~pumpRunning~0); 449#L494 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 467#L578 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret47, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 445#L552-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 447#L526-3 assume !(0 == ~pumpRunning~0); 442#L501 havoc __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_#t~ret80, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 415#L833 __utac_acc__Specification4_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret79;havoc __utac_acc__Specification4_spec__1_#t~ret79; 416#L869 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 518#L869-1 [2020-11-29 19:54:03,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:54:03,978 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 19:54:03,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:54:03,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277894486] [2020-11-29 19:54:03,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:54:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:54:04,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:54:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:54:04,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:54:04,184 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:54:04,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:54:04,187 INFO L82 PathProgramCache]: Analyzing trace with hash -270276488, now seen corresponding path program 1 times [2020-11-29 19:54:04,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:54:04,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346902868] [2020-11-29 19:54:04,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:54:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:54:04,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:54:04,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346902868] [2020-11-29 19:54:04,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:54:04,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:54:04,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390704363] [2020-11-29 19:54:04,216 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:54:04,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:54:04,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:54:04,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:54:04,218 INFO L87 Difference]: Start difference. First operand 179 states and 267 transitions. cyclomatic complexity: 90 Second operand 3 states. [2020-11-29 19:54:04,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:54:04,486 INFO L93 Difference]: Finished difference Result 184 states and 255 transitions. [2020-11-29 19:54:04,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:54:04,487 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 255 transitions. [2020-11-29 19:54:04,490 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2020-11-29 19:54:04,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 184 states and 255 transitions. [2020-11-29 19:54:04,493 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2020-11-29 19:54:04,494 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2020-11-29 19:54:04,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 255 transitions. [2020-11-29 19:54:04,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:54:04,496 INFO L691 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2020-11-29 19:54:04,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 255 transitions. [2020-11-29 19:54:04,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2020-11-29 19:54:04,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-29 19:54:04,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2020-11-29 19:54:04,507 INFO L714 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2020-11-29 19:54:04,507 INFO L594 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2020-11-29 19:54:04,507 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:54:04,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 255 transitions. [2020-11-29 19:54:04,510 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2020-11-29 19:54:04,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:54:04,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:54:04,511 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:54:04,511 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, 1] [2020-11-29 19:54:04,511 INFO L794 eck$LassoCheckResult]: Stem: 906#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 797#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 798#L735 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 904#L743 main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 890#L969 assume 0 != main_~tmp~10; 891#L946 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 872#L869-1 [2020-11-29 19:54:04,512 INFO L796 eck$LassoCheckResult]: Loop: 872#L869-1 assume !false; 909#L423 assume test_~splverifierCounter~0 < 4; 893#L424 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 894#L432 assume !(0 != test_~tmp~3); 908#L432-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 823#L442 assume !(0 != test_~tmp___0~0); 767#L442-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 768#L452 assume 0 != test_~tmp___2~0; 837#L458-2 assume !(0 != ~pumpRunning~0); 827#L494 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 828#L578 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret47, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 809#L552-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 810#L526-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret66, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 814#L841-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 815#L846-3 isHighWaterLevel_#t~ret66 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret66;havoc isHighWaterLevel_#t~ret66; 851#L680-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 873#L680-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 867#L686-3 processEnvironment__wrappee__highWaterSensor_#t~ret46 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret46;havoc processEnvironment__wrappee__highWaterSensor_#t~ret46; 825#L530-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 808#L501 havoc __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_#t~ret80, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 781#L833 __utac_acc__Specification4_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret79;havoc __utac_acc__Specification4_spec__1_#t~ret79; 782#L869 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 872#L869-1 [2020-11-29 19:54:04,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:54:04,513 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 19:54:04,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:54:04,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246987418] [2020-11-29 19:54:04,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:54:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:54:04,571 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:54:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:54:04,661 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:54:04,678 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:54:04,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:54:04,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1151634372, now seen corresponding path program 1 times [2020-11-29 19:54:04,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:54:04,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253131223] [2020-11-29 19:54:04,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:54:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:54:04,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:54:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:54:04,717 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:54:04,722 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:54:04,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:54:04,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1890027798, now seen corresponding path program 1 times [2020-11-29 19:54:04,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:54:04,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608233225] [2020-11-29 19:54:04,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:54:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:54:04,781 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:54:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:54:04,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:54:04,865 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:54:05,176 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-29 19:54:05,312 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-11-29 19:55:34,906 WARN L193 SmtUtils]: Spent 1.49 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 19:56:33,862 WARN L193 SmtUtils]: Spent 58.95 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 19:56:34,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:56:34 BoogieIcfgContainer [2020-11-29 19:56:34,233 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:56:34,234 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:56:34,234 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:56:34,234 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:56:34,235 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:54:02" (3/4) ... [2020-11-29 19:56:34,238 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:56:34,292 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6baa0b66-00bf-4076-b201-f904e8f29d9a/bin/uautomizer/witness.graphml [2020-11-29 19:56:34,297 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:56:34,299 INFO L168 Benchmark]: Toolchain (without parser) took 154944.99 ms. Allocated memory was 90.2 MB in the beginning and 157.3 MB in the end (delta: 67.1 MB). Free memory was 58.3 MB in the beginning and 78.6 MB in the end (delta: -20.3 MB). Peak memory consumption was 44.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:34,300 INFO L168 Benchmark]: CDTParser took 1.59 ms. Allocated memory is still 67.1 MB. Free memory was 29.0 MB in the beginning and 29.0 MB in the end (delta: 33.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:56:34,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.13 ms. Allocated memory is still 90.2 MB. Free memory was 58.1 MB in the beginning and 57.2 MB in the end (delta: 918.8 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:34,307 INFO L168 Benchmark]: Boogie Procedure Inliner took 144.37 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 52.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:34,308 INFO L168 Benchmark]: Boogie Preprocessor took 115.11 ms. Allocated memory is still 90.2 MB. Free memory was 52.2 MB in the beginning and 48.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:34,309 INFO L168 Benchmark]: RCFGBuilder took 2022.79 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 48.8 MB in the beginning and 85.6 MB in the end (delta: -36.8 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:34,309 INFO L168 Benchmark]: BuchiAutomizer took 151921.73 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 85.6 MB in the beginning and 80.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 79.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:34,310 INFO L168 Benchmark]: Witness Printer took 63.18 ms. Allocated memory is still 157.3 MB. Free memory was 80.7 MB in the beginning and 78.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:34,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.59 ms. Allocated memory is still 67.1 MB. Free memory was 29.0 MB in the beginning and 29.0 MB in the end (delta: 33.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 664.13 ms. Allocated memory is still 90.2 MB. Free memory was 58.1 MB in the beginning and 57.2 MB in the end (delta: 918.8 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 144.37 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 52.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 115.11 ms. Allocated memory is still 90.2 MB. Free memory was 52.2 MB in the beginning and 48.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2022.79 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 48.8 MB in the beginning and 85.6 MB in the end (delta: -36.8 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 151921.73 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 85.6 MB in the beginning and 80.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 79.8 MB. Max. memory is 16.1 GB. * Witness Printer took 63.18 ms. Allocated memory is still 157.3 MB. Free memory was 80.7 MB in the beginning and 78.6 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 6 locations. The remainder module has 184 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 151.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 150.8s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 184 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 461 SDtfs, 947 SDslu, 77 SDs, 0 SdLazy, 50 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 422]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4164} State at position 1 is {NULL=0, NULL=4186, NULL=0, retValue_acc=1, NULL=4164, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57eeff7a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27d19ff=57, methaneLevelCritical=0, retValue_acc=0, tmp=0, tmp___1=0, NULL=4185, NULL=0, NULL=4168, NULL=4175, cleanupTimeShifts=4, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38ccac1d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@192bce84=0, NULL=0, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a47e79=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f446560=0, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=4169, NULL=4182, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=0, NULL=4181, NULL=0, NULL=0, NULL=0, tmp=1, tmp=1, NULL=4189, NULL=4192, NULL=4172, NULL=4177, head=0, NULL=0, NULL=0, tmp=0, NULL=4167, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b252331=0, NULL=0, NULL=4180, NULL=4184, NULL=4170, NULL=4171, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15450854=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d1233cc=0, NULL=0, NULL=4173, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78250c10=0, NULL=4188, tmp=0, NULL=4187, NULL=4190, NULL=4176, tmp___0=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, \result=0, NULL=0, NULL=0, NULL=0, NULL=4166, retValue_acc=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49986334=0, NULL=0, NULL=4178, retValue_acc=1, NULL=4191, tmp___2=57, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=4165, NULL=4183, NULL=4179, NULL=4174} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L486] int pumpRunning = 0; [L487] int systemActive = 1; [L758] int waterLevel = 1; [L759] int methaneLevelCritical = 0; [L887] int cleanupTimeShifts = 4; [L960] int retValue_acc ; [L961] int tmp ; [L739] int retValue_acc ; [L742] retValue_acc = 1 [L743] return (retValue_acc); [L967] tmp = valid_product() [L969] COND TRUE \read(tmp) [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 Loop: [L422] COND TRUE 1 [L424] COND TRUE splverifierCounter < 4 [L430] tmp = __VERIFIER_nondet_int() [L432] COND FALSE !(\read(tmp)) [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp___0)) [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) [L494] COND FALSE !(\read(pumpRunning)) [L501] COND TRUE \read(systemActive) [L575] int tmp ; [L578] COND FALSE !(\read(pumpRunning)) [L549] int tmp ; [L552] COND FALSE !(\read(pumpRunning)) [L523] int tmp ; [L526] COND TRUE ! pumpRunning [L672] int retValue_acc ; [L673] int tmp ; [L674] int tmp___0 ; [L838] int retValue_acc ; [L841] COND TRUE waterLevel < 2 [L842] retValue_acc = 1 [L843] return (retValue_acc); [L678] tmp = isHighWaterSensorDry() [L680] COND TRUE \read(tmp) [L681] tmp___0 = 0 [L685] retValue_acc = tmp___0 [L686] return (retValue_acc); [L528] tmp = isHighWaterLevel() [L530] COND FALSE !(\read(tmp)) [L862] int tmp ; [L863] int tmp___0 ; [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); [L867] tmp = getWaterLevel() [L869] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...