./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product34.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_c246b8bc-421b-4b08-ace7-32de654f2051/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c246b8bc-421b-4b08-ace7-32de654f2051/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c246b8bc-421b-4b08-ace7-32de654f2051/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c246b8bc-421b-4b08-ace7-32de654f2051/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c246b8bc-421b-4b08-ace7-32de654f2051/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c246b8bc-421b-4b08-ace7-32de654f2051/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 5755897c1254f90f3058dc77caf92ead54b02784 ........................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:22:21,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:22:21,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:22:22,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:22:22,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:22:22,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:22:22,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:22:22,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:22:22,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:22:22,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:22:22,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:22:22,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:22:22,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:22:22,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:22:22,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:22:22,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:22:22,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:22:22,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:22:22,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:22:22,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:22:22,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:22:22,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:22:22,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:22:22,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:22:22,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:22:22,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:22:22,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:22:22,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:22:22,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:22:22,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:22:22,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:22:22,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:22:22,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:22:22,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:22:22,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:22:22,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:22:22,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:22:22,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:22:22,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:22:22,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:22:22,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:22:22,145 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c246b8bc-421b-4b08-ace7-32de654f2051/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:22:22,175 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:22:22,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:22:22,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:22:22,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:22:22,179 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:22:22,179 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:22:22,180 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:22:22,180 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:22:22,180 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:22:22,181 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:22:22,181 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:22:22,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:22:22,182 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:22:22,182 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:22:22,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:22:22,183 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:22:22,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:22:22,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:22:22,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:22:22,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:22:22,185 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:22:22,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:22:22,186 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:22:22,186 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:22:22,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:22:22,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:22:22,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:22:22,188 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:22:22,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:22:22,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:22:22,189 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:22:22,190 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:22:22,191 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:22:22,191 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_c246b8bc-421b-4b08-ace7-32de654f2051/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c246b8bc-421b-4b08-ace7-32de654f2051/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5755897c1254f90f3058dc77caf92ead54b02784 [2020-11-29 20:22:22,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:22:22,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:22:22,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:22:22,576 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:22:22,592 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:22:22,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c246b8bc-421b-4b08-ace7-32de654f2051/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2020-11-29 20:22:22,693 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c246b8bc-421b-4b08-ace7-32de654f2051/bin/uautomizer/data/826f39091/69a38e57311449569259973b0b529170/FLAGe871779f6 [2020-11-29 20:22:23,316 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:22:23,317 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c246b8bc-421b-4b08-ace7-32de654f2051/sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2020-11-29 20:22:23,344 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c246b8bc-421b-4b08-ace7-32de654f2051/bin/uautomizer/data/826f39091/69a38e57311449569259973b0b529170/FLAGe871779f6 [2020-11-29 20:22:23,584 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c246b8bc-421b-4b08-ace7-32de654f2051/bin/uautomizer/data/826f39091/69a38e57311449569259973b0b529170 [2020-11-29 20:22:23,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:22:23,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:22:23,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:22:23,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:22:23,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:22:23,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:22:23" (1/1) ... [2020-11-29 20:22:23,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fed45ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:23, skipping insertion in model container [2020-11-29 20:22:23,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:22:23" (1/1) ... [2020-11-29 20:22:23,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:22:23,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:22:24,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:22:24,148 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:22:24,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:22:24,344 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:22:24,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:24 WrapperNode [2020-11-29 20:22:24,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:22:24,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:22:24,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:22:24,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:22:24,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:24" (1/1) ... [2020-11-29 20:22:24,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:24" (1/1) ... [2020-11-29 20:22:24,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:22:24,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:22:24,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:22:24,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:22:24,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:24" (1/1) ... [2020-11-29 20:22:24,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:24" (1/1) ... [2020-11-29 20:22:24,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:24" (1/1) ... [2020-11-29 20:22:24,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:24" (1/1) ... [2020-11-29 20:22:24,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:24" (1/1) ... [2020-11-29 20:22:24,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:24" (1/1) ... [2020-11-29 20:22:24,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:24" (1/1) ... [2020-11-29 20:22:24,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:22:24,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:22:24,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:22:24,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:22:24,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c246b8bc-421b-4b08-ace7-32de654f2051/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:22:24,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:22:24,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:22:24,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:22:24,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:22:25,749 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:22:25,750 INFO L298 CfgBuilder]: Removed 104 assume(true) statements. [2020-11-29 20:22:25,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:22:25 BoogieIcfgContainer [2020-11-29 20:22:25,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:22:25,754 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:22:25,754 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:22:25,758 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:22:25,760 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:22:25,760 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:22:23" (1/3) ... [2020-11-29 20:22:25,762 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34656589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:22:25, skipping insertion in model container [2020-11-29 20:22:25,762 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:22:25,762 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:24" (2/3) ... [2020-11-29 20:22:25,763 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34656589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:22:25, skipping insertion in model container [2020-11-29 20:22:25,763 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:22:25,763 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:22:25" (3/3) ... [2020-11-29 20:22:25,766 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product34.cil.c [2020-11-29 20:22:25,836 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:22:25,836 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:22:25,836 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:22:25,837 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:22:25,837 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:22:25,837 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:22:25,837 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:22:25,838 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:22:25,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2020-11-29 20:22:25,881 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 20:22:25,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:22:25,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:22:25,892 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:22:25,892 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:22:25,892 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:22:25,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2020-11-29 20:22:25,909 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 20:22:25,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:22:25,910 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:22:25,911 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:22:25,911 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:22:25,926 INFO L794 eck$LassoCheckResult]: Stem: 39#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~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 12#L-1true havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 3#L197true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 45#L205true main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 42#L161true assume 0 != main_~tmp~1; 66#L134true havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 58#L53-1true [2020-11-29 20:22:25,929 INFO L796 eck$LassoCheckResult]: Loop: 58#L53-1true assume !false; 68#L222true assume test_~splverifierCounter~0 < 4; 36#L223true test_~tmp~2 := test_#t~nondet11;havoc test_#t~nondet11; 33#L231true assume !(0 != test_~tmp~2); 30#L231-1true test_~tmp___0~1 := test_#t~nondet12;havoc test_#t~nondet12; 8#L241true assume !(0 != test_~tmp___0~1); 5#L241-1true test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 65#L251true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 14#L259-2true assume !(0 != ~pumpRunning~0); 78#L291true assume !(0 != ~systemActive~0); 70#L298true havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;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; 16#L519true __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 71#L53true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 58#L53-1true [2020-11-29 20:22:25,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:25,936 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 20:22:25,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:25,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381091324] [2020-11-29 20:22:25,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:22:26,307 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:22:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:22:26,494 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:22:26,579 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:22:26,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:26,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1680575547, now seen corresponding path program 1 times [2020-11-29 20:22:26,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:26,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627763088] [2020-11-29 20:22:26,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:26,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:22:26,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627763088] [2020-11-29 20:22:26,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:22:26,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:22:26,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544359912] [2020-11-29 20:22:26,683 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:22:26,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:22:26,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:22:26,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:22:26,705 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 3 states. [2020-11-29 20:22:26,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:22:26,762 INFO L93 Difference]: Finished difference Result 75 states and 104 transitions. [2020-11-29 20:22:26,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:22:26,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 104 transitions. [2020-11-29 20:22:26,772 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-29 20:22:26,786 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 96 transitions. [2020-11-29 20:22:26,788 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2020-11-29 20:22:26,789 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2020-11-29 20:22:26,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 96 transitions. [2020-11-29 20:22:26,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:22:26,793 INFO L691 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2020-11-29 20:22:26,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 96 transitions. [2020-11-29 20:22:26,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-29 20:22:26,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-29 20:22:26,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 96 transitions. [2020-11-29 20:22:26,852 INFO L714 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2020-11-29 20:22:26,852 INFO L594 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2020-11-29 20:22:26,853 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:22:26,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 96 transitions. [2020-11-29 20:22:26,855 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-29 20:22:26,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:22:26,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:22:26,856 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:22:26,856 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:22:26,857 INFO L794 eck$LassoCheckResult]: Stem: 211#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~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 180#L-1 havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 164#L197 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 165#L205 main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 212#L161 assume 0 != main_~tmp~1; 213#L134 havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 226#L53-1 [2020-11-29 20:22:26,857 INFO L796 eck$LassoCheckResult]: Loop: 226#L53-1 assume !false; 227#L222 assume test_~splverifierCounter~0 < 4; 208#L223 test_~tmp~2 := test_#t~nondet11;havoc test_#t~nondet11; 204#L231 assume !(0 != test_~tmp~2); 203#L231-1 test_~tmp___0~1 := test_#t~nondet12;havoc test_#t~nondet12; 172#L241 assume !(0 != test_~tmp___0~1); 166#L241-1 test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 167#L251 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 184#L259-2 assume !(0 != ~pumpRunning~0); 185#L291 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 219#L323 assume !(0 == ~pumpRunning~0); 220#L298 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;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; 187#L519 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 188#L53 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 226#L53-1 [2020-11-29 20:22:26,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:26,858 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 20:22:26,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:26,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842113660] [2020-11-29 20:22:26,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:22:26,958 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:22:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:22:27,019 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:22:27,039 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:22:27,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:27,041 INFO L82 PathProgramCache]: Analyzing trace with hash -589844995, now seen corresponding path program 1 times [2020-11-29 20:22:27,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:27,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103924562] [2020-11-29 20:22:27,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:27,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:22:27,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103924562] [2020-11-29 20:22:27,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:22:27,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:22:27,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468046282] [2020-11-29 20:22:27,059 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:22:27,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:22:27,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:22:27,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:22:27,060 INFO L87 Difference]: Start difference. First operand 68 states and 96 transitions. cyclomatic complexity: 30 Second operand 3 states. [2020-11-29 20:22:27,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:22:27,161 INFO L93 Difference]: Finished difference Result 109 states and 147 transitions. [2020-11-29 20:22:27,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:22:27,163 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 147 transitions. [2020-11-29 20:22:27,166 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2020-11-29 20:22:27,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 109 states and 147 transitions. [2020-11-29 20:22:27,169 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 109 [2020-11-29 20:22:27,177 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 109 [2020-11-29 20:22:27,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 147 transitions. [2020-11-29 20:22:27,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:22:27,178 INFO L691 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2020-11-29 20:22:27,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 147 transitions. [2020-11-29 20:22:27,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-29 20:22:27,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-29 20:22:27,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 147 transitions. [2020-11-29 20:22:27,190 INFO L714 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2020-11-29 20:22:27,190 INFO L594 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2020-11-29 20:22:27,190 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 20:22:27,190 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 147 transitions. [2020-11-29 20:22:27,193 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2020-11-29 20:22:27,193 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:22:27,193 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:22:27,198 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:22:27,198 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] [2020-11-29 20:22:27,199 INFO L794 eck$LassoCheckResult]: Stem: 396#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~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 363#L-1 havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 347#L197 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 348#L205 main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 397#L161 assume 0 != main_~tmp~1; 398#L134 havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 410#L53-1 [2020-11-29 20:22:27,199 INFO L796 eck$LassoCheckResult]: Loop: 410#L53-1 assume !false; 411#L222 assume test_~splverifierCounter~0 < 4; 393#L223 test_~tmp~2 := test_#t~nondet11;havoc test_#t~nondet11; 389#L231 assume !(0 != test_~tmp~2); 386#L231-1 test_~tmp___0~1 := test_#t~nondet12;havoc test_#t~nondet12; 355#L241 assume !(0 != test_~tmp___0~1); 349#L241-1 test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 350#L251 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 366#L259-2 assume !(0 != ~pumpRunning~0); 367#L291 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 402#L323 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 400#L527 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 401#L532 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 394#L425 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~2 := 0; 395#L425-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 377#L431 processEnvironment_#t~ret15 := isHighWaterLevel_#res;processEnvironment_~tmp~3 := processEnvironment_#t~ret15;havoc processEnvironment_#t~ret15; 378#L327 assume !(0 != processEnvironment_~tmp~3); 413#L298 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;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; 368#L519 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 369#L53 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 410#L53-1 [2020-11-29 20:22:27,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:27,200 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 20:22:27,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:27,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987480040] [2020-11-29 20:22:27,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:22:27,297 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:22:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:22:27,410 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:22:27,436 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:22:27,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:27,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1033973015, now seen corresponding path program 1 times [2020-11-29 20:22:27,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:27,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895443409] [2020-11-29 20:22:27,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:22:27,451 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:22:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:22:27,458 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:22:27,465 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:22:27,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:27,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1019261041, now seen corresponding path program 1 times [2020-11-29 20:22:27,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:27,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961014823] [2020-11-29 20:22:27,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:22:27,524 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:22:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:22:27,574 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:22:27,596 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:22:27,797 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-29 20:23:49,084 WARN L193 SmtUtils]: Spent 1.35 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 20:24:48,625 WARN L193 SmtUtils]: Spent 59.53 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 20:24:49,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:24:49 BoogieIcfgContainer [2020-11-29 20:24:49,010 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:24:49,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:24:49,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:24:49,016 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:24:49,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:22:25" (3/4) ... [2020-11-29 20:24:49,020 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 20:24:49,110 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c246b8bc-421b-4b08-ace7-32de654f2051/bin/uautomizer/witness.graphml [2020-11-29 20:24:49,111 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:24:49,112 INFO L168 Benchmark]: Toolchain (without parser) took 145522.65 ms. Allocated memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: 27.3 MB). Free memory was 73.6 MB in the beginning and 100.9 MB in the end (delta: -27.3 MB). Peak memory consumption was 146.6 kB. Max. memory is 16.1 GB. [2020-11-29 20:24:49,113 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 83.9 MB. Free memory was 56.4 MB in the beginning and 56.4 MB in the end (delta: 23.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:24:49,114 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.19 ms. Allocated memory is still 104.9 MB. Free memory was 73.6 MB in the beginning and 71.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:49,114 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.25 ms. Allocated memory is still 104.9 MB. Free memory was 71.9 MB in the beginning and 69.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:49,115 INFO L168 Benchmark]: Boogie Preprocessor took 90.67 ms. Allocated memory is still 104.9 MB. Free memory was 69.3 MB in the beginning and 67.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:49,115 INFO L168 Benchmark]: RCFGBuilder took 1200.01 ms. Allocated memory is still 104.9 MB. Free memory was 67.2 MB in the beginning and 61.9 MB in the end (delta: 5.2 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:49,116 INFO L168 Benchmark]: BuchiAutomizer took 143260.79 ms. Allocated memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: 27.3 MB). Free memory was 61.9 MB in the beginning and 103.0 MB in the end (delta: -41.0 MB). Peak memory consumption was 66.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:49,117 INFO L168 Benchmark]: Witness Printer took 95.22 ms. Allocated memory is still 132.1 MB. Free memory was 103.0 MB in the beginning and 100.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:49,120 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 83.9 MB. Free memory was 56.4 MB in the beginning and 56.4 MB in the end (delta: 23.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 756.19 ms. Allocated memory is still 104.9 MB. Free memory was 73.6 MB in the beginning and 71.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 111.25 ms. Allocated memory is still 104.9 MB. Free memory was 71.9 MB in the beginning and 69.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.67 ms. Allocated memory is still 104.9 MB. Free memory was 69.3 MB in the beginning and 67.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1200.01 ms. Allocated memory is still 104.9 MB. Free memory was 67.2 MB in the beginning and 61.9 MB in the end (delta: 5.2 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 143260.79 ms. Allocated memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: 27.3 MB). Free memory was 61.9 MB in the beginning and 103.0 MB in the end (delta: -41.0 MB). Peak memory consumption was 66.8 MB. Max. memory is 16.1 GB. * Witness Printer took 95.22 ms. Allocated memory is still 132.1 MB. Free memory was 103.0 MB in the beginning and 100.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 109 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 143.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 142.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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: 212 SDtfs, 178 SDslu, 48 SDs, 0 SdLazy, 24 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 221]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=10337} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=10337, NULL=10356, NULL=0, NULL=10344, NULL=0, NULL=10349, NULL=10339, methaneLevelCritical=0, NULL=10345, tmp___0=0, tmp=0, retValue_acc=0, NULL=0, NULL=10342, NULL=0, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3950b037=0, NULL=0, NULL=0, NULL=10363, tmp___0=0, NULL=10364, NULL=10365, cleanupTimeShifts=4, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c821980=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@690b5ea4=0, NULL=10362, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29e5456e=0, NULL=10352, head=0, pumpRunning=0, retValue_acc=1, \result=0, NULL=10343, NULL=10359, tmp=1, NULL=0, NULL=0, NULL=10340, \result=1, NULL=10347, tmp=1, NULL=10346, NULL=0, NULL=0, tmp=1, NULL=10338, NULL=0, NULL=0, NULL=10361, NULL=0, retValue_acc=1, retValue_acc=1, tmp___2=71, NULL=0, NULL=10348, tmp___0=0, NULL=10351, splverifierCounter=0, NULL=0, NULL=10354, NULL=10358, NULL=10355, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51594f98=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d3eec6a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ec7114e=71, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65b77476=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cc1282=0, tmp=0, head=0, NULL=0, NULL=0, NULL=10357, NULL=0, NULL=0, NULL=10341, NULL=0, NULL=0, NULL=0, NULL=10353, NULL=10350, NULL=10360} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L71] int cleanupTimeShifts = 4; [L284] int pumpRunning = 0; [L285] int systemActive = 1; [L444] int waterLevel = 1; [L445] int methaneLevelCritical = 0; [L716] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L152] int retValue_acc ; [L153] int tmp ; [L201] int retValue_acc ; [L204] retValue_acc = 1 [L205] return (retValue_acc); [L159] tmp = valid_product() [L161] COND TRUE \read(tmp) [L212] int splverifierCounter ; [L213] int tmp ; [L214] int tmp___0 ; [L215] int tmp___1 ; [L216] int tmp___2 ; [L219] splverifierCounter = 0 Loop: [L221] COND TRUE 1 [L223] COND TRUE splverifierCounter < 4 [L229] tmp = __VERIFIER_nondet_int() [L231] COND FALSE !(\read(tmp)) [L239] tmp___0 = __VERIFIER_nondet_int() [L241] COND FALSE !(\read(tmp___0)) [L249] tmp___2 = __VERIFIER_nondet_int() [L251] COND TRUE \read(tmp___2) [L439] systemActive = 1 [L291] COND FALSE !(\read(pumpRunning)) [L298] COND TRUE \read(systemActive) [L320] int tmp ; [L323] COND TRUE ! pumpRunning [L417] int retValue_acc ; [L418] int tmp ; [L419] int tmp___0 ; [L524] int retValue_acc ; [L527] COND TRUE waterLevel < 2 [L528] retValue_acc = 1 [L529] return (retValue_acc); [L423] tmp = isHighWaterSensorDry() [L425] COND TRUE \read(tmp) [L426] tmp___0 = 0 [L430] retValue_acc = tmp___0 [L431] return (retValue_acc); [L325] tmp = isHighWaterLevel() [L327] COND FALSE !(\read(tmp)) [L46] int tmp ; [L47] int tmp___0 ; [L515] int retValue_acc ; [L518] retValue_acc = waterLevel [L519] return (retValue_acc); [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...