./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product64.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_f55b1d7f-a1f1-4448-93ef-907ff755968f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f55b1d7f-a1f1-4448-93ef-907ff755968f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f55b1d7f-a1f1-4448-93ef-907ff755968f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f55b1d7f-a1f1-4448-93ef-907ff755968f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f55b1d7f-a1f1-4448-93ef-907ff755968f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f55b1d7f-a1f1-4448-93ef-907ff755968f/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 5ca298a7f7a6dfe339e53e4b85ae8a0388f112d3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:01:59,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:01:59,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:02:00,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:02:00,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:02:00,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:02:00,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:02:00,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:02:00,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:02:00,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:02:00,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:02:00,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:02:00,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:02:00,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:02:00,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:02:00,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:02:00,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:02:00,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:02:00,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:02:00,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:02:00,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:02:00,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:02:00,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:02:00,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:02:00,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:02:00,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:02:00,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:02:00,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:02:00,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:02:00,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:02:00,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:02:00,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:02:00,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:02:00,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:02:00,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:02:00,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:02:00,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:02:00,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:02:00,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:02:00,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:02:00,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:02:00,142 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f55b1d7f-a1f1-4448-93ef-907ff755968f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:02:00,167 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:02:00,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:02:00,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:02:00,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:02:00,170 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:02:00,170 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:02:00,170 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:02:00,170 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:02:00,170 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:02:00,171 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:02:00,171 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:02:00,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:02:00,171 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:02:00,171 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:02:00,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:02:00,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:02:00,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:02:00,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:02:00,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:02:00,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:02:00,173 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:02:00,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:02:00,173 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:02:00,174 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:02:00,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:02:00,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:02:00,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:02:00,174 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:02:00,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:02:00,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:02:00,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:02:00,175 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:02:00,176 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:02:00,177 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_f55b1d7f-a1f1-4448-93ef-907ff755968f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f55b1d7f-a1f1-4448-93ef-907ff755968f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ca298a7f7a6dfe339e53e4b85ae8a0388f112d3 [2020-11-30 01:02:00,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:02:00,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:02:00,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:02:00,453 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:02:00,455 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:02:00,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f55b1d7f-a1f1-4448-93ef-907ff755968f/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c [2020-11-30 01:02:00,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f55b1d7f-a1f1-4448-93ef-907ff755968f/bin/uautomizer/data/e6de3bd76/641bba43a4bb432ca2143912ce7ef828/FLAG79c3652e3 [2020-11-30 01:02:01,072 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:02:01,072 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f55b1d7f-a1f1-4448-93ef-907ff755968f/sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c [2020-11-30 01:02:01,084 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f55b1d7f-a1f1-4448-93ef-907ff755968f/bin/uautomizer/data/e6de3bd76/641bba43a4bb432ca2143912ce7ef828/FLAG79c3652e3 [2020-11-30 01:02:01,361 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f55b1d7f-a1f1-4448-93ef-907ff755968f/bin/uautomizer/data/e6de3bd76/641bba43a4bb432ca2143912ce7ef828 [2020-11-30 01:02:01,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:02:01,369 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:02:01,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:01,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:02:01,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:02:01,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:01,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74dc5fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01, skipping insertion in model container [2020-11-30 01:02:01,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:01,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:02:01,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:02:01,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:01,784 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:02:01,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:01,984 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:02:01,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01 WrapperNode [2020-11-30 01:02:01,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:01,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:02:01,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:02:01,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:02:02,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:02,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:02,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:02:02,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:02:02,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:02:02,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:02:02,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:02,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:02,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:02,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:02,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:02,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:02,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:02,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:02:02,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:02:02,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:02:02,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:02:02,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f55b1d7f-a1f1-4448-93ef-907ff755968f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:02:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:02:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:02:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:02:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:02:03,724 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:02:03,726 INFO L298 CfgBuilder]: Removed 360 assume(true) statements. [2020-11-30 01:02:03,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:03 BoogieIcfgContainer [2020-11-30 01:02:03,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:02:03,732 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:02:03,732 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:02:03,736 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:02:03,737 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:02:03,737 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:02:01" (1/3) ... [2020-11-30 01:02:03,738 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d685c4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:02:03, skipping insertion in model container [2020-11-30 01:02:03,739 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:02:03,739 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (2/3) ... [2020-11-30 01:02:03,740 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d685c4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:02:03, skipping insertion in model container [2020-11-30 01:02:03,740 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:02:03,741 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:03" (3/3) ... [2020-11-30 01:02:03,743 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product64.cil.c [2020-11-30 01:02:03,789 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:02:03,789 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:02:03,789 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:02:03,789 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:02:03,789 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:02:03,789 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:02:03,789 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:02:03,790 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:02:03,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 227 states. [2020-11-30 01:02:03,858 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2020-11-30 01:02:03,858 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:02:03,858 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:02:03,867 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:02:03,867 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:03,867 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:02:03,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 227 states. [2020-11-30 01:02:03,889 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2020-11-30 01:02:03,889 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:02:03,889 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:02:03,896 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:02:03,896 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:03,901 INFO L794 eck$LassoCheckResult]: Stem: 93#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~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~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 18#L-1true havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 22#L76true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 123#L84true main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 186#L570true assume 0 != main_~tmp~4; 145#L546true havoc test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 96#L99-1true [2020-11-30 01:02:03,901 INFO L796 eck$LassoCheckResult]: Loop: 96#L99-1true assume !false; 150#L970true assume test_~splverifierCounter~0 < 4; 214#L971true test_~tmp~11 := test_#t~nondet79;havoc test_#t~nondet79; 108#L979true assume !(0 != test_~tmp~11); 111#L979-1true test_~tmp___0~3 := test_#t~nondet80;havoc test_#t~nondet80; 60#L989true assume !(0 != test_~tmp___0~3); 64#L989-1true test_~tmp___2~0 := test_#t~nondet81;havoc test_#t~nondet81; 192#L999true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 98#L1007-1true assume !(0 != ~pumpRunning~0); 10#L599true assume !(0 != ~systemActive~0); 164#L606true havoc __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_#t~ret9, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 217#L899-5true __utac_acc__Specification1_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret8;havoc __utac_acc__Specification1_spec__1_#t~ret8; 97#L99true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 96#L99-1true [2020-11-30 01:02:03,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:03,907 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 01:02:03,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:03,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637116386] [2020-11-30 01:02:03,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:04,205 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:04,295 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:04,353 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:02:04,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:04,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1665583730, now seen corresponding path program 1 times [2020-11-30 01:02:04,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:04,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526857172] [2020-11-30 01:02:04,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:04,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:04,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526857172] [2020-11-30 01:02:04,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:04,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:02:04,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937858566] [2020-11-30 01:02:04,425 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:02:04,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:04,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:02:04,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:02:04,440 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 3 states. [2020-11-30 01:02:04,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:04,542 INFO L93 Difference]: Finished difference Result 442 states and 648 transitions. [2020-11-30 01:02:04,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:02:04,545 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 442 states and 648 transitions. [2020-11-30 01:02:04,557 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 290 [2020-11-30 01:02:04,569 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 442 states to 428 states and 633 transitions. [2020-11-30 01:02:04,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 428 [2020-11-30 01:02:04,573 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 428 [2020-11-30 01:02:04,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 428 states and 633 transitions. [2020-11-30 01:02:04,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:02:04,578 INFO L691 BuchiCegarLoop]: Abstraction has 428 states and 633 transitions. [2020-11-30 01:02:04,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states and 633 transitions. [2020-11-30 01:02:04,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 426. [2020-11-30 01:02:04,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-11-30 01:02:04,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 630 transitions. [2020-11-30 01:02:04,640 INFO L714 BuchiCegarLoop]: Abstraction has 426 states and 630 transitions. [2020-11-30 01:02:04,640 INFO L594 BuchiCegarLoop]: Abstraction has 426 states and 630 transitions. [2020-11-30 01:02:04,640 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:02:04,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 426 states and 630 transitions. [2020-11-30 01:02:04,646 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 288 [2020-11-30 01:02:04,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:02:04,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:02:04,648 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:02:04,648 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:04,648 INFO L794 eck$LassoCheckResult]: Stem: 816#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~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~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 708#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 709#L76 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 715#L84 main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 853#L570 assume 0 != main_~tmp~4; 879#L546 havoc test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 880#L99-1 [2020-11-30 01:02:04,648 INFO L796 eck$LassoCheckResult]: Loop: 880#L99-1 assume !false; 885#L970 assume test_~splverifierCounter~0 < 4; 886#L971 test_~tmp~11 := test_#t~nondet79;havoc test_#t~nondet79; 831#L979 assume !(0 != test_~tmp~11); 739#L979-1 test_~tmp___0~3 := test_#t~nondet80;havoc test_#t~nondet80; 1043#L989 assume !(0 != test_~tmp___0~3); 1041#L989-1 test_~tmp___2~0 := test_#t~nondet81;havoc test_#t~nondet81; 908#L999 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 820#L1007-1 assume !(0 != ~pumpRunning~0); 693#L599 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 694#L683 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret47, processEnvironment__wrappee__methaneQuery_~tmp~6;havoc processEnvironment__wrappee__methaneQuery_~tmp~6; 1090#L657-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1051#L631-3 assume !(0 == ~pumpRunning~0); 894#L606 havoc __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_#t~ret9, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 895#L899-5 __utac_acc__Specification1_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret8;havoc __utac_acc__Specification1_spec__1_#t~ret8; 1046#L99 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 880#L99-1 [2020-11-30 01:02:04,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:04,649 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 01:02:04,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:04,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772709098] [2020-11-30 01:02:04,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:04,708 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:04,824 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:04,858 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:02:04,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:04,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1220566467, now seen corresponding path program 1 times [2020-11-30 01:02:04,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:04,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869820750] [2020-11-30 01:02:04,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:04,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:04,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869820750] [2020-11-30 01:02:04,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:04,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:02:04,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009023126] [2020-11-30 01:02:04,877 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:02:04,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:04,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:02:04,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:02:04,878 INFO L87 Difference]: Start difference. First operand 426 states and 630 transitions. cyclomatic complexity: 207 Second operand 3 states. [2020-11-30 01:02:05,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:05,046 INFO L93 Difference]: Finished difference Result 419 states and 586 transitions. [2020-11-30 01:02:05,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:02:05,047 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 419 states and 586 transitions. [2020-11-30 01:02:05,051 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 291 [2020-11-30 01:02:05,058 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 419 states to 419 states and 586 transitions. [2020-11-30 01:02:05,063 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 419 [2020-11-30 01:02:05,065 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 419 [2020-11-30 01:02:05,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 419 states and 586 transitions. [2020-11-30 01:02:05,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:02:05,075 INFO L691 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2020-11-30 01:02:05,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states and 586 transitions. [2020-11-30 01:02:05,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2020-11-30 01:02:05,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-11-30 01:02:05,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 586 transitions. [2020-11-30 01:02:05,104 INFO L714 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2020-11-30 01:02:05,104 INFO L594 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2020-11-30 01:02:05,105 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:02:05,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 419 states and 586 transitions. [2020-11-30 01:02:05,108 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 291 [2020-11-30 01:02:05,108 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:02:05,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:02:05,114 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:02:05,115 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:05,115 INFO L794 eck$LassoCheckResult]: Stem: 1699#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~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~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1569#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 1570#L76 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1563#L84 main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 1564#L570 assume 0 != main_~tmp~4; 1623#L546 havoc test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1600#L99-1 [2020-11-30 01:02:05,115 INFO L796 eck$LassoCheckResult]: Loop: 1600#L99-1 assume !false; 1635#L970 assume test_~splverifierCounter~0 < 4; 1636#L971 test_~tmp~11 := test_#t~nondet79;havoc test_#t~nondet79; 1718#L979 assume !(0 != test_~tmp~11); 1603#L979-1 test_~tmp___0~3 := test_#t~nondet80;havoc test_#t~nondet80; 1649#L989 assume !(0 != test_~tmp___0~3); 1650#L989-1 test_~tmp___2~0 := test_#t~nondet81;havoc test_#t~nondet81; 1657#L999 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1703#L1007-1 assume !(0 != ~pumpRunning~0); 1798#L599 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1797#L683 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret47, processEnvironment__wrappee__methaneQuery_~tmp~6;havoc processEnvironment__wrappee__methaneQuery_~tmp~6; 1796#L657-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1795#L631-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret67, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1794#L939-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1793#L944-3 isHighWaterLevel_#t~ret67 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret67;havoc isHighWaterLevel_#t~ret67; 1792#L802-9 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~1 := 0; 1791#L802-11 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1790#L808-3 processEnvironment__wrappee__highWaterSensor_#t~ret46 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret46;havoc processEnvironment__wrappee__highWaterSensor_#t~ret46; 1789#L635-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1589#L606 havoc __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_#t~ret9, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 1676#L899-5 __utac_acc__Specification1_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret8;havoc __utac_acc__Specification1_spec__1_#t~ret8; 1705#L99 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 1600#L99-1 [2020-11-30 01:02:05,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:05,116 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 01:02:05,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:05,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341047749] [2020-11-30 01:02:05,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:05,179 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:05,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:05,255 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:02:05,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:05,258 INFO L82 PathProgramCache]: Analyzing trace with hash -231328529, now seen corresponding path program 1 times [2020-11-30 01:02:05,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:05,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462359546] [2020-11-30 01:02:05,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:05,265 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:05,269 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:05,274 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:02:05,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:05,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1021976597, now seen corresponding path program 1 times [2020-11-30 01:02:05,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:05,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425397071] [2020-11-30 01:02:05,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:05,353 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:05,398 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:05,418 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:02:05,571 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-30 01:03:18,140 WARN L193 SmtUtils]: Spent 1.21 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 01:04:13,923 WARN L193 SmtUtils]: Spent 55.78 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 01:04:14,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:04:14 BoogieIcfgContainer [2020-11-30 01:04:14,194 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:04:14,197 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:04:14,197 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:04:14,197 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:04:14,198 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:03" (3/4) ... [2020-11-30 01:04:14,201 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:04:14,263 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f55b1d7f-a1f1-4448-93ef-907ff755968f/bin/uautomizer/witness.graphml [2020-11-30 01:04:14,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:04:14,265 INFO L168 Benchmark]: Toolchain (without parser) took 132895.96 ms. Allocated memory was 83.9 MB in the beginning and 127.9 MB in the end (delta: 44.0 MB). Free memory was 53.4 MB in the beginning and 56.5 MB in the end (delta: -3.1 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:14,266 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 83.9 MB. Free memory was 55.3 MB in the beginning and 55.3 MB in the end (delta: 31.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:04:14,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.74 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 53.1 MB in the beginning and 67.9 MB in the end (delta: -14.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:14,267 INFO L168 Benchmark]: Boogie Procedure Inliner took 137.99 ms. Allocated memory is still 100.7 MB. Free memory was 67.9 MB in the beginning and 62.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:14,268 INFO L168 Benchmark]: Boogie Preprocessor took 83.28 ms. Allocated memory is still 100.7 MB. Free memory was 62.1 MB in the beginning and 58.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:14,269 INFO L168 Benchmark]: RCFGBuilder took 1517.17 ms. Allocated memory is still 100.7 MB. Free memory was 58.4 MB in the beginning and 49.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:14,270 INFO L168 Benchmark]: BuchiAutomizer took 130462.46 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 49.0 MB in the beginning and 58.6 MB in the end (delta: -9.6 MB). Peak memory consumption was 50.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:14,270 INFO L168 Benchmark]: Witness Printer took 66.94 ms. Allocated memory is still 127.9 MB. Free memory was 58.6 MB in the beginning and 56.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:14,274 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 83.9 MB. Free memory was 55.3 MB in the beginning and 55.3 MB in the end (delta: 31.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 617.74 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 53.1 MB in the beginning and 67.9 MB in the end (delta: -14.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 137.99 ms. Allocated memory is still 100.7 MB. Free memory was 67.9 MB in the beginning and 62.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.28 ms. Allocated memory is still 100.7 MB. Free memory was 62.1 MB in the beginning and 58.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1517.17 ms. Allocated memory is still 100.7 MB. Free memory was 58.4 MB in the beginning and 49.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 130462.46 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 49.0 MB in the beginning and 58.6 MB in the end (delta: -9.6 MB). Peak memory consumption was 50.9 MB. Max. memory is 16.1 GB. * Witness Printer took 66.94 ms. Allocated memory is still 127.9 MB. Free memory was 58.6 MB in the beginning and 56.5 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 3 locations. The remainder module has 419 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 130.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 129.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 426 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 553 SDtfs, 496 SDslu, 392 SDs, 0 SdLazy, 53 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 969]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4973} State at position 1 is {NULL=0, NULL=0, NULL=4973, NULL=0, NULL=0, NULL=0, NULL=4987, methaneLevelCritical=0, NULL=4992, retValue_acc=0, tmp___1=0, NULL=4998, NULL=0, NULL=5001, cleanupTimeShifts=4, NULL=4976, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51e450c8=0, waterLevel=1, NULL=0, NULL=0, NULL=4984, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23d4a72a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68709809=0, NULL=4988, \result=1, head=0, pumpRunning=0, NULL=4985, tmp=1, NULL=0, NULL=0, tmp=0, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=4997, tmp=1, NULL=4982, head=0, NULL=0, NULL=4995, tmp=0, NULL=0, NULL=0, NULL=0, NULL=4983, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ca1c6a0=0, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9a5c1c=0, NULL=4974, NULL=4975, NULL=4986, NULL=5000, tmp___0=0, NULL=4981, NULL=4989, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@645d8f9=0, NULL=0, tmp___0=0, NULL=4991, NULL=4996, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c2c55c4=0, NULL=0, NULL=0, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@444de7cd=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ef799aa=60, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25a8c467=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=4994, \result=0, NULL=4978, NULL=4980, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1602af2e=0, NULL=4999, retValue_acc=1, retValue_acc=1, tmp___2=60, tmp=0, splverifierCounter=0, NULL=0, \result=0, NULL=4990, NULL=4977, NULL=4993, NULL=4979} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L286] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L483] int cleanupTimeShifts = 4; [L592] int pumpRunning = 0; [L593] int systemActive = 1; [L856] int waterLevel = 1; [L857] int methaneLevelCritical = 0; [L561] int retValue_acc ; [L562] int tmp ; [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); [L568] tmp = valid_product() [L570] COND TRUE \read(tmp) [L960] int splverifierCounter ; [L961] int tmp ; [L962] int tmp___0 ; [L963] int tmp___1 ; [L964] int tmp___2 ; [L967] splverifierCounter = 0 Loop: [L969] COND TRUE 1 [L971] COND TRUE splverifierCounter < 4 [L977] tmp = __VERIFIER_nondet_int() [L979] COND FALSE !(\read(tmp)) [L987] tmp___0 = __VERIFIER_nondet_int() [L989] COND FALSE !(\read(tmp___0)) [L997] tmp___2 = __VERIFIER_nondet_int() [L999] COND TRUE \read(tmp___2) [L850] systemActive = 1 [L599] COND FALSE !(\read(pumpRunning)) [L606] COND TRUE \read(systemActive) [L680] int tmp ; [L683] COND FALSE !(\read(pumpRunning)) [L654] int tmp ; [L657] COND FALSE !(\read(pumpRunning)) [L628] int tmp ; [L631] COND TRUE ! pumpRunning [L794] int retValue_acc ; [L795] int tmp ; [L796] int tmp___0 ; [L936] int retValue_acc ; [L939] COND TRUE waterLevel < 2 [L940] retValue_acc = 1 [L941] return (retValue_acc); [L800] tmp = isHighWaterSensorDry() [L802] COND TRUE \read(tmp) [L803] tmp___0 = 0 [L807] retValue_acc = tmp___0 [L808] return (retValue_acc); [L633] tmp = isHighWaterLevel() [L635] COND FALSE !(\read(tmp)) [L92] int tmp ; [L93] int tmp___0 ; [L895] int retValue_acc ; [L898] retValue_acc = methaneLevelCritical [L899] return (retValue_acc); [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...