./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product28.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_23d82dec-de6c-4a3b-9452-e108ba54b5d3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_23d82dec-de6c-4a3b-9452-e108ba54b5d3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_23d82dec-de6c-4a3b-9452-e108ba54b5d3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_23d82dec-de6c-4a3b-9452-e108ba54b5d3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product28.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_23d82dec-de6c-4a3b-9452-e108ba54b5d3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_23d82dec-de6c-4a3b-9452-e108ba54b5d3/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 be998c7f0ff858151615865f07914b789231e9b9 ........................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:31:46,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:31:46,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:31:46,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:31:46,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:31:46,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:31:46,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:31:46,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:31:46,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:31:46,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:31:46,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:31:46,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:31:46,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:31:46,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:31:46,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:31:46,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:31:46,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:31:46,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:31:46,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:31:46,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:31:46,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:31:46,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:31:46,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:31:46,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:31:46,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:31:46,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:31:46,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:31:46,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:31:46,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:31:46,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:31:46,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:31:46,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:31:46,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:31:46,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:31:46,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:31:46,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:31:46,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:31:46,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:31:46,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:31:46,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:31:46,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:31:46,481 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_23d82dec-de6c-4a3b-9452-e108ba54b5d3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:31:46,529 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:31:46,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:31:46,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:31:46,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:31:46,533 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:31:46,534 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:31:46,534 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:31:46,534 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:31:46,535 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:31:46,535 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:31:46,536 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:31:46,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:31:46,537 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:31:46,537 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:31:46,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:31:46,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:31:46,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:31:46,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:31:46,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:31:46,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:31:46,539 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:31:46,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:31:46,539 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:31:46,540 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:31:46,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:31:46,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:31:46,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:31:46,541 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:31:46,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:31:46,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:31:46,543 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:31:46,543 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:31:46,545 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:31:46,545 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_23d82dec-de6c-4a3b-9452-e108ba54b5d3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_23d82dec-de6c-4a3b-9452-e108ba54b5d3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be998c7f0ff858151615865f07914b789231e9b9 [2020-11-30 00:31:46,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:31:46,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:31:46,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:31:46,891 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:31:46,892 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:31:46,893 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_23d82dec-de6c-4a3b-9452-e108ba54b5d3/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product28.cil.c [2020-11-30 00:31:47,005 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_23d82dec-de6c-4a3b-9452-e108ba54b5d3/bin/uautomizer/data/5d84ace0f/51734a207b7a497b812fb6be72445b4e/FLAGac39fd194 [2020-11-30 00:31:47,640 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:31:47,641 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_23d82dec-de6c-4a3b-9452-e108ba54b5d3/sv-benchmarks/c/product-lines/minepump_spec4_product28.cil.c [2020-11-30 00:31:47,680 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_23d82dec-de6c-4a3b-9452-e108ba54b5d3/bin/uautomizer/data/5d84ace0f/51734a207b7a497b812fb6be72445b4e/FLAGac39fd194 [2020-11-30 00:31:47,895 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_23d82dec-de6c-4a3b-9452-e108ba54b5d3/bin/uautomizer/data/5d84ace0f/51734a207b7a497b812fb6be72445b4e [2020-11-30 00:31:47,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:31:47,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:31:47,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:31:47,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:31:47,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:31:47,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:31:47" (1/1) ... [2020-11-30 00:31:47,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f2610f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:47, skipping insertion in model container [2020-11-30 00:31:47,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:31:47" (1/1) ... [2020-11-30 00:31:47,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:31:48,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:31:48,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:31:48,388 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:31:48,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:31:48,509 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:31:48,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:48 WrapperNode [2020-11-30 00:31:48,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:31:48,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:31:48,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:31:48,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:31:48,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:48" (1/1) ... [2020-11-30 00:31:48,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:48" (1/1) ... [2020-11-30 00:31:48,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:31:48,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:31:48,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:31:48,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:31:48,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:48" (1/1) ... [2020-11-30 00:31:48,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:48" (1/1) ... [2020-11-30 00:31:48,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:48" (1/1) ... [2020-11-30 00:31:48,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:48" (1/1) ... [2020-11-30 00:31:48,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:48" (1/1) ... [2020-11-30 00:31:48,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:48" (1/1) ... [2020-11-30 00:31:48,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:48" (1/1) ... [2020-11-30 00:31:48,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:31:48,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:31:48,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:31:48,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:31:48,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_23d82dec-de6c-4a3b-9452-e108ba54b5d3/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:31:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:31:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:31:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:31:48,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:31:49,797 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:31:49,798 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-11-30 00:31:49,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:31:49 BoogieIcfgContainer [2020-11-30 00:31:49,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:31:49,804 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:31:49,804 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:31:49,808 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:31:49,809 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:31:49,809 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:31:47" (1/3) ... [2020-11-30 00:31:49,810 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28aafe34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:31:49, skipping insertion in model container [2020-11-30 00:31:49,810 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:31:49,811 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:48" (2/3) ... [2020-11-30 00:31:49,811 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28aafe34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:31:49, skipping insertion in model container [2020-11-30 00:31:49,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:31:49,811 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:31:49" (3/3) ... [2020-11-30 00:31:49,816 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product28.cil.c [2020-11-30 00:31:49,871 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:31:49,871 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:31:49,871 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:31:49,871 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:31:49,872 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:31:49,872 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:31:49,872 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:31:49,872 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:31:49,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2020-11-30 00:31:49,910 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-30 00:31:49,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:31:49,911 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:31:49,923 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:31:49,924 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:31:49,924 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:31:49,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2020-11-30 00:31:49,930 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-30 00:31:49,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:31:49,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:31:49,932 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:31:49,932 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:31:49,938 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 10#L-1true havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 59#L470true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 63#L478true main_#t~ret75 := valid_product_#res;main_~tmp~7 := main_#t~ret75;havoc main_#t~ret75; 36#L860true assume 0 != main_~tmp~7; 52#L836true havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 9#L427-1true [2020-11-30 00:31:49,939 INFO L796 eck$LassoCheckResult]: Loop: 9#L427-1true assume !false; 30#L885true assume test_~splverifierCounter~0 < 4; 43#L886true test_~tmp~8 := test_#t~nondet76;havoc test_#t~nondet76; 46#L894true assume !(0 != test_~tmp~8); 48#L894-1true test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 33#L904true assume !(0 != test_~tmp___0~2); 34#L904-1true test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 11#L914true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 25#L922-1true assume !(0 != ~pumpRunning~0); 61#L500true assume !(0 != ~systemActive~0); 73#L507true havoc __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_#t~ret43, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 74#L763true __utac_acc__Specification4_spec__1_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret42;havoc __utac_acc__Specification4_spec__1_#t~ret42; 6#L427true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 9#L427-1true [2020-11-30 00:31:49,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:31:49,945 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 00:31:49,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:31:49,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254414120] [2020-11-30 00:31:49,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:31:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:31:50,237 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:31:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:31:50,400 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:31:50,471 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:31:50,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:31:50,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1672140722, now seen corresponding path program 1 times [2020-11-30 00:31:50,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:31:50,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300016221] [2020-11-30 00:31:50,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:31:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:31:50,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:31:50,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300016221] [2020-11-30 00:31:50,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:31:50,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:31:50,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605817167] [2020-11-30 00:31:50,573 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:31:50,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:31:50,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:31:50,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:31:50,594 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 3 states. [2020-11-30 00:31:50,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:31:50,698 INFO L93 Difference]: Finished difference Result 142 states and 198 transitions. [2020-11-30 00:31:50,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:31:50,703 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 198 transitions. [2020-11-30 00:31:50,717 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2020-11-30 00:31:50,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 128 states and 183 transitions. [2020-11-30 00:31:50,734 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 128 [2020-11-30 00:31:50,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 128 [2020-11-30 00:31:50,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 183 transitions. [2020-11-30 00:31:50,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:31:50,741 INFO L691 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2020-11-30 00:31:50,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 183 transitions. [2020-11-30 00:31:50,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2020-11-30 00:31:50,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-11-30 00:31:50,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 180 transitions. [2020-11-30 00:31:50,808 INFO L714 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2020-11-30 00:31:50,808 INFO L594 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2020-11-30 00:31:50,808 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:31:50,808 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 180 transitions. [2020-11-30 00:31:50,812 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2020-11-30 00:31:50,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:31:50,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:31:50,813 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:31:50,813 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:31:50,814 INFO L794 eck$LassoCheckResult]: Stem: 268#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 241#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 242#L470 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 295#L478 main_#t~ret75 := valid_product_#res;main_~tmp~7 := main_#t~ret75;havoc main_#t~ret75; 272#L860 assume 0 != main_~tmp~7; 273#L836 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 235#L427-1 [2020-11-30 00:31:50,814 INFO L796 eck$LassoCheckResult]: Loop: 235#L427-1 assume !false; 240#L885 assume test_~splverifierCounter~0 < 4; 265#L886 test_~tmp~8 := test_#t~nondet76;havoc test_#t~nondet76; 347#L894 assume !(0 != test_~tmp~8); 345#L894-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 343#L904 assume !(0 != test_~tmp___0~2); 340#L904-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 338#L914 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 244#L922-1 assume !(0 != ~pumpRunning~0); 296#L500 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret45, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 278#L532 assume !(0 != ~pumpRunning~0); 279#L507 havoc __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_#t~ret43, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 303#L763 __utac_acc__Specification4_spec__1_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret42;havoc __utac_acc__Specification4_spec__1_#t~ret42; 234#L427 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 235#L427-1 [2020-11-30 00:31:50,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:31:50,815 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 00:31:50,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:31:50,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6055951] [2020-11-30 00:31:50,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:31:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:31:50,874 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:31:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:31:50,930 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:31:50,948 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:31:50,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:31:50,949 INFO L82 PathProgramCache]: Analyzing trace with hash -323747811, now seen corresponding path program 1 times [2020-11-30 00:31:50,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:31:50,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500978951] [2020-11-30 00:31:50,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:31:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:31:50,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:31:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:31:50,961 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:31:50,966 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:31:50,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:31:50,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1279291715, now seen corresponding path program 1 times [2020-11-30 00:31:50,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:31:50,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975174037] [2020-11-30 00:31:50,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:31:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:31:51,042 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:31:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:31:51,151 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:31:51,182 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:33:05,004 WARN L193 SmtUtils]: Spent 1.23 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 00:33:57,907 WARN L193 SmtUtils]: Spent 52.89 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 00:33:58,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:33:58 BoogieIcfgContainer [2020-11-30 00:33:58,139 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:33:58,140 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:33:58,140 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:33:58,140 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:33:58,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:31:49" (3/4) ... [2020-11-30 00:33:58,143 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:33:58,231 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_23d82dec-de6c-4a3b-9452-e108ba54b5d3/bin/uautomizer/witness.graphml [2020-11-30 00:33:58,235 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:33:58,237 INFO L168 Benchmark]: Toolchain (without parser) took 130334.43 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 85.3 MB in the beginning and 55.5 MB in the end (delta: 29.7 MB). Peak memory consumption was 55.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:33:58,240 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 79.7 MB. Free memory was 41.0 MB in the beginning and 40.9 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:33:58,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.54 ms. Allocated memory is still 117.4 MB. Free memory was 85.0 MB in the beginning and 84.2 MB in the end (delta: 839.8 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:33:58,243 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.75 ms. Allocated memory is still 117.4 MB. Free memory was 84.2 MB in the beginning and 81.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:33:58,244 INFO L168 Benchmark]: Boogie Preprocessor took 65.16 ms. Allocated memory is still 117.4 MB. Free memory was 81.2 MB in the beginning and 79.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:33:58,246 INFO L168 Benchmark]: RCFGBuilder took 1115.42 ms. Allocated memory is still 117.4 MB. Free memory was 79.1 MB in the beginning and 81.3 MB in the end (delta: -2.1 MB). Peak memory consumption was 44.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:33:58,252 INFO L168 Benchmark]: BuchiAutomizer took 128335.34 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 81.3 MB in the beginning and 58.7 MB in the end (delta: 22.6 MB). Peak memory consumption was 76.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:33:58,253 INFO L168 Benchmark]: Witness Printer took 96.07 ms. Allocated memory is still 142.6 MB. Free memory was 58.7 MB in the beginning and 55.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:33:58,258 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 79.7 MB. Free memory was 41.0 MB in the beginning and 40.9 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 605.54 ms. Allocated memory is still 117.4 MB. Free memory was 85.0 MB in the beginning and 84.2 MB in the end (delta: 839.8 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.75 ms. Allocated memory is still 117.4 MB. Free memory was 84.2 MB in the beginning and 81.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.16 ms. Allocated memory is still 117.4 MB. Free memory was 81.2 MB in the beginning and 79.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1115.42 ms. Allocated memory is still 117.4 MB. Free memory was 79.1 MB in the beginning and 81.3 MB in the end (delta: -2.1 MB). Peak memory consumption was 44.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 128335.34 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 81.3 MB in the beginning and 58.7 MB in the end (delta: 22.6 MB). Peak memory consumption was 76.4 MB. Max. memory is 16.1 GB. * Witness Printer took 96.07 ms. Allocated memory is still 142.6 MB. Free memory was 58.7 MB in the beginning and 55.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 126 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 128.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 127.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 126 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 101 SDtfs, 97 SDslu, 89 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 884]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=19796} State at position 1 is {NULL=0, NULL=19801, NULL=0, NULL=19796, NULL=0, NULL=19819, NULL=19805, NULL=19800, methaneLevelCritical=0, NULL=19802, NULL=0, NULL=0, NULL=19818, tmp=0, tmp___1=0, NULL=19812, NULL=0, NULL=0, tmp___0=0, NULL=19817, NULL=19809, NULL=19799, cleanupTimeShifts=4, NULL=19813, NULL=19816, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e7e0282=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e59f5f4=0, NULL=19798, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d812037=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c428b50=68, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39ab6397=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16e7d9de=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=19822, \result=1, head=0, pumpRunning=0, NULL=19808, NULL=19807, \result=0, NULL=19797, NULL=0, NULL=19803, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=19811, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1682329d=0, retValue_acc=1, NULL=19810, NULL=0, tmp=1, NULL=0, retValue_acc=1, NULL=19821, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3555f862=0, tmp___2=68, tmp___0=0, NULL=19815, NULL=19820, splverifierCounter=0, NULL=0, NULL=0, NULL=19814, NULL=19824, NULL=19804, head=0, tmp=0, NULL=0, NULL=0, NULL=19823, NULL=0, NULL=0, NULL=19806} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L220] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L493] int pumpRunning = 0; [L494] int systemActive = 1; [L688] int waterLevel = 1; [L689] int methaneLevelCritical = 0; [L777] int cleanupTimeShifts = 4; [L851] int retValue_acc ; [L852] int tmp ; [L474] int retValue_acc ; [L477] retValue_acc = 1 [L478] return (retValue_acc); [L858] tmp = valid_product() [L860] COND TRUE \read(tmp) [L875] int splverifierCounter ; [L876] int tmp ; [L877] int tmp___0 ; [L878] int tmp___1 ; [L879] int tmp___2 ; [L882] splverifierCounter = 0 Loop: [L884] COND TRUE 1 [L886] COND TRUE splverifierCounter < 4 [L892] tmp = __VERIFIER_nondet_int() [L894] COND FALSE !(\read(tmp)) [L902] tmp___0 = __VERIFIER_nondet_int() [L904] COND FALSE !(\read(tmp___0)) [L912] tmp___2 = __VERIFIER_nondet_int() [L914] COND TRUE \read(tmp___2) [L681] systemActive = 1 [L500] COND FALSE !(\read(pumpRunning)) [L507] COND TRUE \read(systemActive) [L529] int tmp ; [L532] COND FALSE !(\read(pumpRunning)) [L420] int tmp ; [L421] int tmp___0 ; [L759] int retValue_acc ; [L762] retValue_acc = waterLevel [L763] return (retValue_acc); [L425] tmp = getWaterLevel() [L427] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...