./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.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_d9e02bcf-9d13-42a9-b131-fea4e1066a1a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d9e02bcf-9d13-42a9-b131-fea4e1066a1a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d9e02bcf-9d13-42a9-b131-fea4e1066a1a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d9e02bcf-9d13-42a9-b131-fea4e1066a1a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d9e02bcf-9d13-42a9-b131-fea4e1066a1a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d9e02bcf-9d13-42a9-b131-fea4e1066a1a/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 9f716f844e272d3040100c1f49345c7fdf02d773 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:48:07,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:48:07,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:48:07,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:48:07,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:48:07,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:48:07,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:48:07,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:48:07,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:48:07,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:48:07,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:48:07,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:48:07,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:48:07,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:48:07,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:48:07,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:48:07,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:48:07,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:48:07,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:48:07,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:48:07,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:48:07,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:48:07,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:48:07,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:48:07,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:48:07,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:48:07,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:48:07,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:48:07,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:48:07,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:48:07,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:48:07,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:48:07,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:48:07,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:48:07,781 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:48:07,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:48:07,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:48:07,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:48:07,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:48:07,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:48:07,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:48:07,789 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d9e02bcf-9d13-42a9-b131-fea4e1066a1a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:48:07,839 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:48:07,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:48:07,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:48:07,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:48:07,846 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:48:07,846 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:48:07,847 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:48:07,847 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:48:07,847 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:48:07,847 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:48:07,849 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:48:07,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:48:07,849 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:48:07,850 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:48:07,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:48:07,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:48:07,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:48:07,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:48:07,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:48:07,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:48:07,852 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:48:07,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:48:07,852 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:48:07,853 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:48:07,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:48:07,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:48:07,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:48:07,854 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:48:07,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:48:07,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:48:07,857 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:48:07,857 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:48:07,858 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:48:07,858 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_d9e02bcf-9d13-42a9-b131-fea4e1066a1a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d9e02bcf-9d13-42a9-b131-fea4e1066a1a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f716f844e272d3040100c1f49345c7fdf02d773 [2020-11-30 00:48:08,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:48:08,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:48:08,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:48:08,163 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:48:08,164 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:48:08,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d9e02bcf-9d13-42a9-b131-fea4e1066a1a/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2020-11-30 00:48:08,243 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d9e02bcf-9d13-42a9-b131-fea4e1066a1a/bin/uautomizer/data/1f4b1a1be/2c9e977fe92c44e885e802bdb3b4eb45/FLAGeeb5f5103 [2020-11-30 00:48:08,776 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:48:08,777 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d9e02bcf-9d13-42a9-b131-fea4e1066a1a/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2020-11-30 00:48:08,798 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d9e02bcf-9d13-42a9-b131-fea4e1066a1a/bin/uautomizer/data/1f4b1a1be/2c9e977fe92c44e885e802bdb3b4eb45/FLAGeeb5f5103 [2020-11-30 00:48:09,101 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d9e02bcf-9d13-42a9-b131-fea4e1066a1a/bin/uautomizer/data/1f4b1a1be/2c9e977fe92c44e885e802bdb3b4eb45 [2020-11-30 00:48:09,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:48:09,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:48:09,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:48:09,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:48:09,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:48:09,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:48:09" (1/1) ... [2020-11-30 00:48:09,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@80b3608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:09, skipping insertion in model container [2020-11-30 00:48:09,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:48:09" (1/1) ... [2020-11-30 00:48:09,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:48:09,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:48:09,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:48:09,540 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:48:09,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:48:09,676 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:48:09,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:09 WrapperNode [2020-11-30 00:48:09,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:48:09,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:48:09,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:48:09,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:48:09,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:09" (1/1) ... [2020-11-30 00:48:09,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:09" (1/1) ... [2020-11-30 00:48:09,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:48:09,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:48:09,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:48:09,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:48:09,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:09" (1/1) ... [2020-11-30 00:48:09,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:09" (1/1) ... [2020-11-30 00:48:09,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:09" (1/1) ... [2020-11-30 00:48:09,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:09" (1/1) ... [2020-11-30 00:48:09,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:09" (1/1) ... [2020-11-30 00:48:09,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:09" (1/1) ... [2020-11-30 00:48:09,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:09" (1/1) ... [2020-11-30 00:48:09,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:48:09,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:48:09,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:48:09,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:48:09,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d9e02bcf-9d13-42a9-b131-fea4e1066a1a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:48:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:48:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:48:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:48:10,653 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:48:10,654 INFO L298 CfgBuilder]: Removed 102 assume(true) statements. [2020-11-30 00:48:10,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:48:10 BoogieIcfgContainer [2020-11-30 00:48:10,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:48:10,657 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:48:10,657 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:48:10,660 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:48:10,661 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:48:10,661 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:48:09" (1/3) ... [2020-11-30 00:48:10,663 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@548040c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:48:10, skipping insertion in model container [2020-11-30 00:48:10,663 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:48:10,663 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:09" (2/3) ... [2020-11-30 00:48:10,664 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@548040c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:48:10, skipping insertion in model container [2020-11-30 00:48:10,664 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:48:10,664 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:48:10" (3/3) ... [2020-11-30 00:48:10,666 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2020-11-30 00:48:10,720 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:48:10,720 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:48:10,720 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:48:10,721 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:48:10,721 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:48:10,721 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:48:10,721 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:48:10,721 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:48:10,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2020-11-30 00:48:10,760 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-30 00:48:10,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:48:10,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:48:10,769 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:48:10,769 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:48:10,770 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:48:10,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2020-11-30 00:48:10,775 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-30 00:48:10,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:48:10,776 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:48:10,777 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:48:10,777 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:48:10,782 INFO L794 eck$LassoCheckResult]: Stem: 36#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~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 12#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 28#L534true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 35#L542true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 38#L498true assume 0 != main_~tmp~3; 5#L471true havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 69#L884-1true [2020-11-30 00:48:10,783 INFO L796 eck$LassoCheckResult]: Loop: 69#L884-1true assume !false; 64#L558true assume test_~splverifierCounter~0 < 4; 25#L559true test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 27#L567true assume !(0 != test_~tmp~4); 29#L567-1true test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 6#L577true assume !(0 != test_~tmp___0~0); 10#L577-1true test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 65#L587true assume 0 != test_~tmp___2~0; 49#L593-2true assume !(0 != ~pumpRunning~0); 56#L722true assume !(0 != ~systemActive~0); 50#L729true havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 32#L692true __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 66#L884true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 69#L884-1true [2020-11-30 00:48:10,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:10,790 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 00:48:10,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:10,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159310473] [2020-11-30 00:48:10,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:11,120 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:11,249 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:11,306 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:48:11,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:11,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1681529852, now seen corresponding path program 1 times [2020-11-30 00:48:11,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:11,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842744046] [2020-11-30 00:48:11,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:11,324 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:11,333 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:11,338 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:48:11,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:11,346 INFO L82 PathProgramCache]: Analyzing trace with hash 32749086, now seen corresponding path program 1 times [2020-11-30 00:48:11,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:11,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193916613] [2020-11-30 00:48:11,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:48:11,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:48:11,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193916613] [2020-11-30 00:48:11,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:48:11,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:48:11,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568033050] [2020-11-30 00:48:11,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:48:11,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:48:11,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:48:11,693 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 6 states. [2020-11-30 00:48:11,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:48:11,911 INFO L93 Difference]: Finished difference Result 75 states and 103 transitions. [2020-11-30 00:48:11,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:48:11,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 103 transitions. [2020-11-30 00:48:11,922 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-30 00:48:11,928 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 96 transitions. [2020-11-30 00:48:11,930 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2020-11-30 00:48:11,931 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2020-11-30 00:48:11,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 96 transitions. [2020-11-30 00:48:11,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:48:11,932 INFO L691 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2020-11-30 00:48:11,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 96 transitions. [2020-11-30 00:48:11,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-30 00:48:11,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-30 00:48:11,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 96 transitions. [2020-11-30 00:48:11,991 INFO L714 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2020-11-30 00:48:11,991 INFO L594 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2020-11-30 00:48:11,991 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:48:11,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 96 transitions. [2020-11-30 00:48:11,994 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-30 00:48:11,994 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:48:11,994 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:48:11,995 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:48:11,995 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:48:11,995 INFO L794 eck$LassoCheckResult]: Stem: 212#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~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 188#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 189#L534 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 206#L542 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 211#L498 assume 0 != main_~tmp~3; 175#L471 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 172#L884-1 [2020-11-30 00:48:11,995 INFO L796 eck$LassoCheckResult]: Loop: 172#L884-1 assume !false; 233#L558 assume test_~splverifierCounter~0 < 4; 200#L559 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 201#L567 assume !(0 != test_~tmp~4); 204#L567-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 178#L577 assume !(0 != test_~tmp___0~0); 179#L577-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 183#L587 assume 0 != test_~tmp___2~0; 224#L593-2 assume !(0 != ~pumpRunning~0); 227#L722 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 215#L754 assume !(0 == ~pumpRunning~0); 216#L729 havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 207#L692 __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 208#L884 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 172#L884-1 [2020-11-30 00:48:11,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:11,996 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 00:48:11,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:11,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506027478] [2020-11-30 00:48:11,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,042 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,086 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,102 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:48:12,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:12,103 INFO L82 PathProgramCache]: Analyzing trace with hash -619428451, now seen corresponding path program 1 times [2020-11-30 00:48:12,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:12,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392371995] [2020-11-30 00:48:12,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:48:12,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:48:12,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392371995] [2020-11-30 00:48:12,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:48:12,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:48:12,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307551860] [2020-11-30 00:48:12,133 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:48:12,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:48:12,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:48:12,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:48:12,134 INFO L87 Difference]: Start difference. First operand 68 states and 96 transitions. cyclomatic complexity: 30 Second operand 3 states. [2020-11-30 00:48:12,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:48:12,386 INFO L93 Difference]: Finished difference Result 109 states and 147 transitions. [2020-11-30 00:48:12,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:48:12,387 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 147 transitions. [2020-11-30 00:48:12,391 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2020-11-30 00:48:12,393 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 109 states and 147 transitions. [2020-11-30 00:48:12,393 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 109 [2020-11-30 00:48:12,394 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 109 [2020-11-30 00:48:12,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 147 transitions. [2020-11-30 00:48:12,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:48:12,395 INFO L691 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2020-11-30 00:48:12,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 147 transitions. [2020-11-30 00:48:12,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-30 00:48:12,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-30 00:48:12,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 147 transitions. [2020-11-30 00:48:12,418 INFO L714 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2020-11-30 00:48:12,418 INFO L594 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2020-11-30 00:48:12,418 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:48:12,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 147 transitions. [2020-11-30 00:48:12,424 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2020-11-30 00:48:12,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:48:12,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:48:12,425 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:48:12,425 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] [2020-11-30 00:48:12,426 INFO L794 eck$LassoCheckResult]: Stem: 400#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~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 372#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 373#L534 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 389#L542 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 397#L498 assume 0 != main_~tmp~3; 358#L471 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 359#L884-1 [2020-11-30 00:48:12,426 INFO L796 eck$LassoCheckResult]: Loop: 359#L884-1 assume !false; 433#L558 assume test_~splverifierCounter~0 < 4; 383#L559 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 384#L567 assume !(0 != test_~tmp~4); 387#L567-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 360#L577 assume !(0 != test_~tmp___0~0); 361#L577-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 367#L587 assume 0 != test_~tmp___2~0; 408#L593-2 assume !(0 != ~pumpRunning~0); 411#L722 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 401#L754 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret76, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 402#L700 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 363#L705 isHighWaterLevel_#t~ret76 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret76;havoc isHighWaterLevel_#t~ret76; 364#L856 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 385#L856-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 388#L862 processEnvironment_#t~ret58 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret58;havoc processEnvironment_#t~ret58; 416#L758 assume !(0 != processEnvironment_~tmp~5); 412#L729 havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 390#L692 __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 391#L884 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 359#L884-1 [2020-11-30 00:48:12,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:12,426 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 00:48:12,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:12,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542279859] [2020-11-30 00:48:12,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,499 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,568 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,581 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:48:12,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:12,582 INFO L82 PathProgramCache]: Analyzing trace with hash -22033879, now seen corresponding path program 1 times [2020-11-30 00:48:12,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:12,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206663318] [2020-11-30 00:48:12,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,588 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,592 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,600 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:48:12,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:12,600 INFO L82 PathProgramCache]: Analyzing trace with hash -7321905, now seen corresponding path program 1 times [2020-11-30 00:48:12,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:12,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285440773] [2020-11-30 00:48:12,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,682 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,723 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,742 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:48:12,869 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-30 00:49:36,576 WARN L193 SmtUtils]: Spent 1.39 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 00:50:36,172 WARN L193 SmtUtils]: Spent 59.59 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 00:50:36,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:50:36 BoogieIcfgContainer [2020-11-30 00:50:36,554 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:50:36,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:50:36,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:50:36,555 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:50:36,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:48:10" (3/4) ... [2020-11-30 00:50:36,559 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:50:36,624 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d9e02bcf-9d13-42a9-b131-fea4e1066a1a/bin/uautomizer/witness.graphml [2020-11-30 00:50:36,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:50:36,640 INFO L168 Benchmark]: Toolchain (without parser) took 147534.28 ms. Allocated memory was 86.0 MB in the beginning and 157.3 MB in the end (delta: 71.3 MB). Free memory was 55.9 MB in the beginning and 79.5 MB in the end (delta: -23.5 MB). Peak memory consumption was 48.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:36,641 INFO L168 Benchmark]: CDTParser took 0.94 ms. Allocated memory is still 86.0 MB. Free memory was 45.2 MB in the beginning and 45.1 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:50:36,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 572.20 ms. Allocated memory is still 86.0 MB. Free memory was 55.6 MB in the beginning and 53.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:36,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.76 ms. Allocated memory is still 86.0 MB. Free memory was 53.2 MB in the beginning and 50.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:36,647 INFO L168 Benchmark]: Boogie Preprocessor took 36.42 ms. Allocated memory is still 86.0 MB. Free memory was 50.7 MB in the beginning and 48.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:36,648 INFO L168 Benchmark]: RCFGBuilder took 868.61 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 48.2 MB in the beginning and 59.1 MB in the end (delta: -10.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:36,648 INFO L168 Benchmark]: BuchiAutomizer took 145897.54 ms. Allocated memory was 113.2 MB in the beginning and 157.3 MB in the end (delta: 44.0 MB). Free memory was 59.1 MB in the beginning and 81.6 MB in the end (delta: -22.4 MB). Peak memory consumption was 67.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:36,649 INFO L168 Benchmark]: Witness Printer took 83.27 ms. Allocated memory is still 157.3 MB. Free memory was 81.6 MB in the beginning and 79.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:36,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94 ms. Allocated memory is still 86.0 MB. Free memory was 45.2 MB in the beginning and 45.1 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 572.20 ms. Allocated memory is still 86.0 MB. Free memory was 55.6 MB in the beginning and 53.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.76 ms. Allocated memory is still 86.0 MB. Free memory was 53.2 MB in the beginning and 50.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.42 ms. Allocated memory is still 86.0 MB. Free memory was 50.7 MB in the beginning and 48.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 868.61 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 48.2 MB in the beginning and 59.1 MB in the end (delta: -10.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 145897.54 ms. Allocated memory was 113.2 MB in the beginning and 157.3 MB in the end (delta: 44.0 MB). Free memory was 59.1 MB in the beginning and 81.6 MB in the end (delta: -22.4 MB). Peak memory consumption was 67.3 MB. Max. memory is 16.1 GB. * Witness Printer took 83.27 ms. Allocated memory is still 157.3 MB. Free memory was 81.6 MB in the beginning and 79.5 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 109 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 145.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 145.1s. Construction of modules took 0.3s. 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 109 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 209 SDtfs, 378 SDslu, 50 SDs, 0 SdLazy, 29 SolverSat, 15 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: 557]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=13141} State at position 1 is {NULL=0, NULL=13158, NULL=0, NULL=13141, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cded39d=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@716a211a=0, NULL=13155, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6633ae71=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a7a8877=59, NULL=0, NULL=13148, NULL=13145, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b4ccfb4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63386454=0, methaneLevelCritical=0, NULL=13166, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b192cc2=0, tmp___0=0, NULL=0, tmp=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73a0b792=0, tmp___1=0, NULL=13164, NULL=0, NULL=0, NULL=13168, NULL=13160, NULL=13146, cleanupTimeShifts=4, NULL=13161, NULL=13143, tmp___0=0, NULL=13151, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=13152, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1623b308=0, NULL=0, \result=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=13147, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=13150, NULL=13159, \result=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=13167, retValue_acc=1, \result=1, NULL=13149, NULL=13157, NULL=0, retValue_acc=0, NULL=13156, NULL=0, NULL=13144, tmp=1, retValue_acc=1, tmp___2=59, NULL=0, NULL=13162, NULL=13142, tmp=1, splverifierCounter=0, NULL=0, NULL=13169, NULL=13165, head=0, NULL=0, NULL=0, tmp=0, NULL=13163, NULL=0, NULL=0, NULL=13154, NULL=13153} - 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; [L408] int cleanupTimeShifts = 4; [L617] int waterLevel = 1; [L618] int methaneLevelCritical = 0; [L714] int pumpRunning = 0; [L715] int systemActive = 1; [L489] int retValue_acc ; [L490] int tmp ; [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L548] int splverifierCounter ; [L549] int tmp ; [L550] int tmp___0 ; [L551] int tmp___1 ; [L552] int tmp___2 ; [L555] splverifierCounter = 0 Loop: [L557] COND TRUE 1 [L559] COND TRUE splverifierCounter < 4 [L565] tmp = __VERIFIER_nondet_int() [L567] COND FALSE !(\read(tmp)) [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp___0)) [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) [L722] COND FALSE !(\read(pumpRunning)) [L729] COND TRUE \read(systemActive) [L751] int tmp ; [L754] COND TRUE ! pumpRunning [L848] int retValue_acc ; [L849] int tmp ; [L850] int tmp___0 ; [L697] int retValue_acc ; [L700] COND TRUE waterLevel < 2 [L701] retValue_acc = 1 [L702] return (retValue_acc); [L854] tmp = isHighWaterSensorDry() [L856] COND TRUE \read(tmp) [L857] tmp___0 = 0 [L861] retValue_acc = tmp___0 [L862] return (retValue_acc); [L756] tmp = isHighWaterLevel() [L758] COND FALSE !(\read(tmp)) [L877] int tmp ; [L878] int tmp___0 ; [L688] int retValue_acc ; [L691] retValue_acc = waterLevel [L692] return (retValue_acc); [L882] tmp = getWaterLevel() [L884] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...