./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product59.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_c531450f-c49c-46e1-a2a0-ce9171df68cd/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c531450f-c49c-46e1-a2a0-ce9171df68cd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c531450f-c49c-46e1-a2a0-ce9171df68cd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c531450f-c49c-46e1-a2a0-ce9171df68cd/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c531450f-c49c-46e1-a2a0-ce9171df68cd/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c531450f-c49c-46e1-a2a0-ce9171df68cd/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 118c87a61fbb1df2cb9a671e761c9c9d71205fb6 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:16:06,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:16:06,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:16:06,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:16:06,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:16:06,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:16:06,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:16:06,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:16:06,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:16:06,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:16:06,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:16:06,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:16:06,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:16:06,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:16:06,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:16:06,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:16:06,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:16:06,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:16:06,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:16:06,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:16:06,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:16:06,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:16:06,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:16:06,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:16:06,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:16:06,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:16:06,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:16:06,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:16:06,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:16:06,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:16:06,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:16:06,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:16:06,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:16:06,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:16:06,318 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:16:06,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:16:06,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:16:06,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:16:06,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:16:06,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:16:06,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:16:06,323 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c531450f-c49c-46e1-a2a0-ce9171df68cd/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:16:06,347 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:16:06,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:16:06,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:16:06,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:16:06,349 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:16:06,349 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:16:06,350 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:16:06,350 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:16:06,350 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:16:06,350 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:16:06,350 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:16:06,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:16:06,351 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:16:06,351 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:16:06,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:16:06,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:16:06,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:16:06,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:16:06,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:16:06,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:16:06,352 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:16:06,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:16:06,353 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:16:06,353 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:16:06,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:16:06,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:16:06,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:16:06,354 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:16:06,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:16:06,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:16:06,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:16:06,354 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:16:06,355 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:16:06,356 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_c531450f-c49c-46e1-a2a0-ce9171df68cd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c531450f-c49c-46e1-a2a0-ce9171df68cd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 118c87a61fbb1df2cb9a671e761c9c9d71205fb6 [2020-11-30 01:16:06,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:16:06,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:16:06,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:16:06,620 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:16:06,621 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:16:06,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c531450f-c49c-46e1-a2a0-ce9171df68cd/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c [2020-11-30 01:16:06,689 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c531450f-c49c-46e1-a2a0-ce9171df68cd/bin/uautomizer/data/ff40f6b12/6323023d451546ddab2d3580ecb79f5a/FLAG932d06506 [2020-11-30 01:16:07,315 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:16:07,316 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c531450f-c49c-46e1-a2a0-ce9171df68cd/sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c [2020-11-30 01:16:07,330 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c531450f-c49c-46e1-a2a0-ce9171df68cd/bin/uautomizer/data/ff40f6b12/6323023d451546ddab2d3580ecb79f5a/FLAG932d06506 [2020-11-30 01:16:07,554 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c531450f-c49c-46e1-a2a0-ce9171df68cd/bin/uautomizer/data/ff40f6b12/6323023d451546ddab2d3580ecb79f5a [2020-11-30 01:16:07,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:16:07,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:16:07,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:16:07,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:16:07,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:16:07,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:16:07" (1/1) ... [2020-11-30 01:16:07,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18cd7e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:07, skipping insertion in model container [2020-11-30 01:16:07,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:16:07" (1/1) ... [2020-11-30 01:16:07,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:16:07,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:16:08,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:16:08,029 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:16:08,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:16:08,158 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:16:08,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:08 WrapperNode [2020-11-30 01:16:08,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:16:08,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:16:08,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:16:08,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:16:08,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:08" (1/1) ... [2020-11-30 01:16:08,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:08" (1/1) ... [2020-11-30 01:16:08,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:16:08,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:16:08,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:16:08,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:16:08,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:08" (1/1) ... [2020-11-30 01:16:08,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:08" (1/1) ... [2020-11-30 01:16:08,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:08" (1/1) ... [2020-11-30 01:16:08,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:08" (1/1) ... [2020-11-30 01:16:08,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:08" (1/1) ... [2020-11-30 01:16:08,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:08" (1/1) ... [2020-11-30 01:16:08,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:08" (1/1) ... [2020-11-30 01:16:08,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:16:08,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:16:08,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:16:08,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:16:08,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c531450f-c49c-46e1-a2a0-ce9171df68cd/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 01:16:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:16:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:16:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:16:08,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:16:09,606 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:16:09,606 INFO L298 CfgBuilder]: Removed 202 assume(true) statements. [2020-11-30 01:16:09,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:09 BoogieIcfgContainer [2020-11-30 01:16:09,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:16:09,609 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:16:09,609 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:16:09,612 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:16:09,612 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:16:09,612 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:16:07" (1/3) ... [2020-11-30 01:16:09,613 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ea10b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:16:09, skipping insertion in model container [2020-11-30 01:16:09,613 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:16:09,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:08" (2/3) ... [2020-11-30 01:16:09,614 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ea10b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:16:09, skipping insertion in model container [2020-11-30 01:16:09,614 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:16:09,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:09" (3/3) ... [2020-11-30 01:16:09,615 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product59.cil.c [2020-11-30 01:16:09,652 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:16:09,652 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:16:09,652 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:16:09,652 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:16:09,652 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:16:09,653 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:16:09,653 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:16:09,653 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:16:09,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states. [2020-11-30 01:16:09,694 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2020-11-30 01:16:09,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:16:09,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:16:09,705 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:16:09,705 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:09,705 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:16:09,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states. [2020-11-30 01:16:09,729 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2020-11-30 01:16:09,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:16:09,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:16:09,730 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:16:09,730 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:09,735 INFO L794 eck$LassoCheckResult]: Stem: 73#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 8#L-1true havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 35#L884true havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 58#L892true main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 125#L979true assume 0 != main_~tmp~10; 19#L956true havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 43#L163-1true [2020-11-30 01:16:09,736 INFO L796 eck$LassoCheckResult]: Loop: 43#L163-1true assume !false; 56#L204true assume test_~splverifierCounter~0 < 4; 12#L205true test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 16#L213true assume !(0 != test_~tmp~1); 11#L213-1true test_~tmp___0~1 := test_#t~nondet20;havoc test_#t~nondet20; 71#L223true assume !(0 != test_~tmp___0~1); 52#L223-1true test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 121#L233true assume 0 != test_~tmp___2~0; 104#L239-1true assume !(0 != ~pumpRunning~0); 64#L270true assume !(0 != ~systemActive~0); 9#L277true havoc __utac_acc__Specification1_spec__1_#t~ret17, __utac_acc__Specification1_spec__1_#t~ret18, __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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 85#L93-2true __utac_acc__Specification1_spec__1_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret17;havoc __utac_acc__Specification1_spec__1_#t~ret17; 47#L163true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 43#L163-1true [2020-11-30 01:16:09,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:09,741 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 01:16:09,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:09,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958358901] [2020-11-30 01:16:09,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:10,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:10,236 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:10,301 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:10,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:10,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1670509171, now seen corresponding path program 1 times [2020-11-30 01:16:10,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:10,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896966719] [2020-11-30 01:16:10,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:10,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:10,315 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:10,321 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:10,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:10,323 INFO L82 PathProgramCache]: Analyzing trace with hash 43769767, now seen corresponding path program 1 times [2020-11-30 01:16:10,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:10,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153601500] [2020-11-30 01:16:10,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:10,510 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 01:16:10,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153601500] [2020-11-30 01:16:10,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:10,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:16:10,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981836749] [2020-11-30 01:16:10,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:16:10,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:16:10,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:16:10,668 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 6 states. [2020-11-30 01:16:10,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:10,971 INFO L93 Difference]: Finished difference Result 312 states and 444 transitions. [2020-11-30 01:16:10,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:16:10,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 312 states and 444 transitions. [2020-11-30 01:16:10,986 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 201 [2020-11-30 01:16:11,002 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 312 states to 291 states and 423 transitions. [2020-11-30 01:16:11,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 291 [2020-11-30 01:16:11,005 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 291 [2020-11-30 01:16:11,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 291 states and 423 transitions. [2020-11-30 01:16:11,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:16:11,009 INFO L691 BuchiCegarLoop]: Abstraction has 291 states and 423 transitions. [2020-11-30 01:16:11,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states and 423 transitions. [2020-11-30 01:16:11,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 168. [2020-11-30 01:16:11,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-11-30 01:16:11,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 243 transitions. [2020-11-30 01:16:11,052 INFO L714 BuchiCegarLoop]: Abstraction has 168 states and 243 transitions. [2020-11-30 01:16:11,053 INFO L594 BuchiCegarLoop]: Abstraction has 168 states and 243 transitions. [2020-11-30 01:16:11,053 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:16:11,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 243 transitions. [2020-11-30 01:16:11,055 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 116 [2020-11-30 01:16:11,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:16:11,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:16:11,057 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:16:11,057 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:11,057 INFO L794 eck$LassoCheckResult]: Stem: 560#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 478#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 479#L884 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 522#L892 main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 552#L979 assume 0 != main_~tmp~10; 498#L956 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 499#L163-1 [2020-11-30 01:16:11,058 INFO L796 eck$LassoCheckResult]: Loop: 499#L163-1 assume !false; 536#L204 assume test_~splverifierCounter~0 < 4; 485#L205 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 486#L213 assume !(0 != test_~tmp~1); 483#L213-1 test_~tmp___0~1 := test_#t~nondet20;havoc test_#t~nondet20; 484#L223 assume !(0 != test_~tmp___0~1); 549#L223-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 550#L233 assume 0 != test_~tmp___2~0; 567#L239-1 assume !(0 != ~pumpRunning~0); 503#L270 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret24, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 526#L328 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret23, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 528#L302-1 assume !(0 == ~pumpRunning~0); 468#L277 havoc __utac_acc__Specification1_spec__1_#t~ret17, __utac_acc__Specification1_spec__1_#t~ret18, __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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 480#L93-2 __utac_acc__Specification1_spec__1_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret17;havoc __utac_acc__Specification1_spec__1_#t~ret17; 542#L163 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 499#L163-1 [2020-11-30 01:16:11,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:11,059 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 01:16:11,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:11,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593717729] [2020-11-30 01:16:11,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:11,113 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:11,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:11,188 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:11,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:11,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1972735894, now seen corresponding path program 1 times [2020-11-30 01:16:11,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:11,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024654501] [2020-11-30 01:16:11,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:11,203 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 01:16:11,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024654501] [2020-11-30 01:16:11,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:11,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:16:11,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009009674] [2020-11-30 01:16:11,205 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:16:11,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:16:11,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:16:11,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:16:11,206 INFO L87 Difference]: Start difference. First operand 168 states and 243 transitions. cyclomatic complexity: 78 Second operand 3 states. [2020-11-30 01:16:11,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:11,341 INFO L93 Difference]: Finished difference Result 207 states and 283 transitions. [2020-11-30 01:16:11,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:16:11,342 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 207 states and 283 transitions. [2020-11-30 01:16:11,345 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 146 [2020-11-30 01:16:11,348 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 207 states to 207 states and 283 transitions. [2020-11-30 01:16:11,348 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 207 [2020-11-30 01:16:11,348 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 207 [2020-11-30 01:16:11,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 283 transitions. [2020-11-30 01:16:11,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:16:11,350 INFO L691 BuchiCegarLoop]: Abstraction has 207 states and 283 transitions. [2020-11-30 01:16:11,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 283 transitions. [2020-11-30 01:16:11,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2020-11-30 01:16:11,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-11-30 01:16:11,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 283 transitions. [2020-11-30 01:16:11,378 INFO L714 BuchiCegarLoop]: Abstraction has 207 states and 283 transitions. [2020-11-30 01:16:11,378 INFO L594 BuchiCegarLoop]: Abstraction has 207 states and 283 transitions. [2020-11-30 01:16:11,379 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:16:11,380 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 207 states and 283 transitions. [2020-11-30 01:16:11,384 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 146 [2020-11-30 01:16:11,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:16:11,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:16:11,386 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:16:11,387 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] [2020-11-30 01:16:11,387 INFO L794 eck$LassoCheckResult]: Stem: 947#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 860#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 861#L884 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 905#L892 main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 936#L979 assume 0 != main_~tmp~10; 880#L956 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 881#L163-1 [2020-11-30 01:16:11,388 INFO L796 eck$LassoCheckResult]: Loop: 881#L163-1 assume !false; 919#L204 assume test_~splverifierCounter~0 < 4; 867#L205 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 868#L213 assume !(0 != test_~tmp~1); 865#L213-1 test_~tmp___0~1 := test_#t~nondet20;havoc test_#t~nondet20; 866#L223 assume !(0 != test_~tmp___0~1); 931#L223-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 932#L233 assume 0 != test_~tmp___2~0; 954#L239-1 assume !(0 != ~pumpRunning~0); 939#L270 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret24, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 910#L328 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret23, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 911#L302-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret43, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 890#L133-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 891#L138-1 isHighWaterLevel_#t~ret43 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret43;havoc isHighWaterLevel_#t~ret43; 904#L448-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~2 := 0; 972#L448-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 950#L454-1 processEnvironment__wrappee__highWaterSensor_#t~ret23 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret23;havoc processEnvironment__wrappee__highWaterSensor_#t~ret23; 920#L306-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 850#L277 havoc __utac_acc__Specification1_spec__1_#t~ret17, __utac_acc__Specification1_spec__1_#t~ret18, __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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 862#L93-2 __utac_acc__Specification1_spec__1_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret17;havoc __utac_acc__Specification1_spec__1_#t~ret17; 924#L163 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 881#L163-1 [2020-11-30 01:16:11,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:11,389 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 01:16:11,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:11,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015334056] [2020-11-30 01:16:11,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:11,458 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:11,533 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:11,561 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:11,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:11,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1765215486, now seen corresponding path program 1 times [2020-11-30 01:16:11,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:11,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073683374] [2020-11-30 01:16:11,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:11,569 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:11,575 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:11,580 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:11,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:11,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1309144292, now seen corresponding path program 1 times [2020-11-30 01:16:11,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:11,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011758581] [2020-11-30 01:16:11,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:11,651 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:11,699 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:11,721 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:11,836 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-30 01:17:36,454 WARN L193 SmtUtils]: Spent 1.41 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 01:18:39,586 WARN L193 SmtUtils]: Spent 1.05 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 01:18:39,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:18:39 BoogieIcfgContainer [2020-11-30 01:18:39,888 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:18:39,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:18:39,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:18:39,889 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:18:39,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:09" (3/4) ... [2020-11-30 01:18:39,893 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:18:39,963 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c531450f-c49c-46e1-a2a0-ce9171df68cd/bin/uautomizer/witness.graphml [2020-11-30 01:18:39,963 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:18:39,965 INFO L168 Benchmark]: Toolchain (without parser) took 152405.41 ms. Allocated memory was 121.6 MB in the beginning and 176.2 MB in the end (delta: 54.5 MB). Free memory was 94.3 MB in the beginning and 66.5 MB in the end (delta: 27.8 MB). Peak memory consumption was 80.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:18:39,965 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 83.9 MB. Free memory was 42.4 MB in the beginning and 42.3 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:18:39,966 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.73 ms. Allocated memory is still 121.6 MB. Free memory was 94.0 MB in the beginning and 88.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:18:39,967 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.31 ms. Allocated memory is still 121.6 MB. Free memory was 88.1 MB in the beginning and 84.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:18:39,967 INFO L168 Benchmark]: Boogie Preprocessor took 66.72 ms. Allocated memory is still 121.6 MB. Free memory was 84.2 MB in the beginning and 81.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:18:39,968 INFO L168 Benchmark]: RCFGBuilder took 1252.90 ms. Allocated memory is still 121.6 MB. Free memory was 81.3 MB in the beginning and 94.9 MB in the end (delta: -13.6 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:18:39,969 INFO L168 Benchmark]: BuchiAutomizer took 150279.39 ms. Allocated memory was 121.6 MB in the beginning and 176.2 MB in the end (delta: 54.5 MB). Free memory was 94.9 MB in the beginning and 68.6 MB in the end (delta: 26.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:18:39,969 INFO L168 Benchmark]: Witness Printer took 74.34 ms. Allocated memory is still 176.2 MB. Free memory was 68.6 MB in the beginning and 66.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:18:39,972 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 42.4 MB in the beginning and 42.3 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 598.73 ms. Allocated memory is still 121.6 MB. Free memory was 94.0 MB in the beginning and 88.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 125.31 ms. Allocated memory is still 121.6 MB. Free memory was 88.1 MB in the beginning and 84.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.72 ms. Allocated memory is still 121.6 MB. Free memory was 84.2 MB in the beginning and 81.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1252.90 ms. Allocated memory is still 121.6 MB. Free memory was 81.3 MB in the beginning and 94.9 MB in the end (delta: -13.6 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 150279.39 ms. Allocated memory was 121.6 MB in the beginning and 176.2 MB in the end (delta: 54.5 MB). Free memory was 94.9 MB in the beginning and 68.6 MB in the end (delta: 26.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 16.1 GB. * Witness Printer took 74.34 ms. Allocated memory is still 176.2 MB. Free memory was 68.6 MB in the beginning and 66.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 207 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 150.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 149.5s. Construction of modules took 0.2s. 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, 123 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 207 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 358 SDtfs, 863 SDslu, 860 SDs, 0 SdLazy, 73 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 203]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=28306} State at position 1 is {NULL=0, NULL=0, NULL=28321, NULL=0, NULL=28306, NULL=0, NULL=28308, retValue_acc=1, NULL=28307, methaneLevelCritical=0, NULL=0, NULL=28325, NULL=0, tmp___1=0, retValue_acc=0, NULL=0, NULL=28332, cleanupTimeShifts=4, tmp=0, NULL=28320, NULL=28315, tmp=1, waterLevel=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6839a8d4=0, \result=1, head=0, pumpRunning=0, NULL=28312, NULL=0, retValue_acc=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4eb540df=0, tmp=0, \result=1, NULL=0, NULL=0, NULL=28328, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=28318, tmp___0=0, NULL=28331, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ef1f242=0, NULL=28309, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27804eb9=66, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b877f94=0, NULL=0, NULL=28311, retValue_acc=0, NULL=0, NULL=28324, NULL=28329, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fffac7d=0, NULL=28313, NULL=28333, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f5227dd=0, tmp___0=0, NULL=28317, NULL=28334, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2162882f=0, NULL=0, systemActive=1, NULL=0, NULL=0, NULL=28316, \result=0, NULL=0, NULL=28322, retValue_acc=0, \result=0, NULL=28319, NULL=0, NULL=28326, NULL=28323, tmp___2=66, splverifierCounter=0, NULL=0, \result=0, NULL=28330, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66fe1868=0, NULL=28310, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3abdd9=0, NULL=28327, NULL=28314} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int waterLevel = 1; [L51] int methaneLevelCritical = 0; [L263] int pumpRunning = 0; [L264] int systemActive = 1; [L662] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L897] int cleanupTimeShifts = 4; [L970] int retValue_acc ; [L971] int tmp ; [L888] int retValue_acc ; [L891] retValue_acc = 1 [L892] return (retValue_acc); [L977] tmp = valid_product() [L979] COND TRUE \read(tmp) [L194] int splverifierCounter ; [L195] int tmp ; [L196] int tmp___0 ; [L197] int tmp___1 ; [L198] int tmp___2 ; [L201] splverifierCounter = 0 Loop: [L203] COND TRUE 1 [L205] COND TRUE splverifierCounter < 4 [L211] tmp = __VERIFIER_nondet_int() [L213] COND FALSE !(\read(tmp)) [L221] tmp___0 = __VERIFIER_nondet_int() [L223] COND FALSE !(\read(tmp___0)) [L231] tmp___2 = __VERIFIER_nondet_int() [L233] COND TRUE \read(tmp___2) [L270] COND FALSE !(\read(pumpRunning)) [L277] COND TRUE \read(systemActive) [L325] int tmp ; [L328] COND FALSE !(\read(pumpRunning)) [L299] int tmp ; [L302] COND TRUE ! pumpRunning [L440] int retValue_acc ; [L441] int tmp ; [L442] int tmp___0 ; [L130] int retValue_acc ; [L133] COND TRUE waterLevel < 2 [L134] retValue_acc = 1 [L135] return (retValue_acc); [L446] tmp = isHighWaterSensorDry() [L448] COND TRUE \read(tmp) [L449] tmp___0 = 0 [L453] retValue_acc = tmp___0 [L454] return (retValue_acc); [L304] tmp = isHighWaterLevel() [L306] COND FALSE !(\read(tmp)) [L156] int tmp ; [L157] int tmp___0 ; [L89] int retValue_acc ; [L92] retValue_acc = methaneLevelCritical [L93] return (retValue_acc); [L161] tmp = isMethaneLevelCritical() [L163] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...