./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product23.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_ac9efd35-74c7-4766-a49f-05fc70a7fe3f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ac9efd35-74c7-4766-a49f-05fc70a7fe3f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ac9efd35-74c7-4766-a49f-05fc70a7fe3f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ac9efd35-74c7-4766-a49f-05fc70a7fe3f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ac9efd35-74c7-4766-a49f-05fc70a7fe3f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ac9efd35-74c7-4766-a49f-05fc70a7fe3f/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 8105acde44a746346743774bfdcca7c2d11e450d ..................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:55:26,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:55:26,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:55:26,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:55:26,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:55:26,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:55:26,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:55:26,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:55:26,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:55:26,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:55:26,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:55:26,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:55:26,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:55:26,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:55:26,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:55:26,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:55:26,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:55:26,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:55:26,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:55:26,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:55:26,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:55:26,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:55:26,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:55:26,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:55:26,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:55:26,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:55:26,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:55:26,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:55:26,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:55:26,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:55:26,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:55:26,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:55:26,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:55:26,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:55:26,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:55:26,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:55:26,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:55:26,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:55:26,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:55:26,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:55:26,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:55:26,408 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ac9efd35-74c7-4766-a49f-05fc70a7fe3f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:55:26,440 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:55:26,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:55:26,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:55:26,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:55:26,442 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:55:26,442 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:55:26,442 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:55:26,443 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:55:26,443 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:55:26,443 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:55:26,443 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:55:26,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:55:26,444 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:55:26,444 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:55:26,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:55:26,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:55:26,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:55:26,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:55:26,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:55:26,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:55:26,446 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:55:26,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:55:26,446 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:55:26,446 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:55:26,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:55:26,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:55:26,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:55:26,447 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:55:26,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:55:26,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:55:26,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:55:26,448 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:55:26,449 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:55:26,449 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_ac9efd35-74c7-4766-a49f-05fc70a7fe3f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ac9efd35-74c7-4766-a49f-05fc70a7fe3f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8105acde44a746346743774bfdcca7c2d11e450d [2020-11-29 23:55:26,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:55:26,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:55:26,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:55:26,808 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:55:26,808 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:55:26,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ac9efd35-74c7-4766-a49f-05fc70a7fe3f/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c [2020-11-29 23:55:26,876 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac9efd35-74c7-4766-a49f-05fc70a7fe3f/bin/uautomizer/data/06820f521/0f5fbb2f53304599a98add8090d2c2f3/FLAG9de40f6be [2020-11-29 23:55:27,461 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:55:27,462 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ac9efd35-74c7-4766-a49f-05fc70a7fe3f/sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c [2020-11-29 23:55:27,473 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac9efd35-74c7-4766-a49f-05fc70a7fe3f/bin/uautomizer/data/06820f521/0f5fbb2f53304599a98add8090d2c2f3/FLAG9de40f6be [2020-11-29 23:55:27,733 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ac9efd35-74c7-4766-a49f-05fc70a7fe3f/bin/uautomizer/data/06820f521/0f5fbb2f53304599a98add8090d2c2f3 [2020-11-29 23:55:27,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:55:27,737 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:55:27,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:27,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:55:27,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:55:27,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:27" (1/1) ... [2020-11-29 23:55:27,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e876372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:27, skipping insertion in model container [2020-11-29 23:55:27,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:27" (1/1) ... [2020-11-29 23:55:27,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:55:27,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:55:28,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:28,164 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:55:28,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:28,276 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:55:28,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:28 WrapperNode [2020-11-29 23:55:28,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:28,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:28,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:55:28,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:55:28,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:28" (1/1) ... [2020-11-29 23:55:28,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:28" (1/1) ... [2020-11-29 23:55:28,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:28,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:55:28,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:55:28,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:55:28,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:28" (1/1) ... [2020-11-29 23:55:28,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:28" (1/1) ... [2020-11-29 23:55:28,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:28" (1/1) ... [2020-11-29 23:55:28,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:28" (1/1) ... [2020-11-29 23:55:28,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:28" (1/1) ... [2020-11-29 23:55:28,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:28" (1/1) ... [2020-11-29 23:55:28,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:28" (1/1) ... [2020-11-29 23:55:28,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:55:28,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:55:28,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:55:28,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:55:28,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac9efd35-74c7-4766-a49f-05fc70a7fe3f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:55:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:55:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:55:28,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:55:29,642 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:55:29,644 INFO L298 CfgBuilder]: Removed 168 assume(true) statements. [2020-11-29 23:55:29,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:29 BoogieIcfgContainer [2020-11-29 23:55:29,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:55:29,647 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:55:29,648 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:55:29,651 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:55:29,652 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:55:29,652 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:55:27" (1/3) ... [2020-11-29 23:55:29,653 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75261433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:55:29, skipping insertion in model container [2020-11-29 23:55:29,653 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:55:29,654 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:28" (2/3) ... [2020-11-29 23:55:29,654 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75261433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:55:29, skipping insertion in model container [2020-11-29 23:55:29,654 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:55:29,654 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:29" (3/3) ... [2020-11-29 23:55:29,656 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product23.cil.c [2020-11-29 23:55:29,709 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:55:29,710 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:55:29,710 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:55:29,711 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:55:29,711 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:55:29,711 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:55:29,711 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:55:29,711 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:55:29,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-11-29 23:55:29,761 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-29 23:55:29,762 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:29,762 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:29,770 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:29,770 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:29,771 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:55:29,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-11-29 23:55:29,777 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-29 23:55:29,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:29,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:29,779 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:29,779 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:29,784 INFO L794 eck$LassoCheckResult]: Stem: 88#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~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(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);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(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 11#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 83#L845true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 98#L853true main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 92#L941true assume 0 != main_~tmp~8; 69#L917true ~methAndRunningLastTime~0 := 0; 66#L146true havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 65#L157-1true [2020-11-29 23:55:29,785 INFO L796 eck$LassoCheckResult]: Loop: 65#L157-1true assume !false; 46#L568true assume test_~splverifierCounter~0 < 4; 104#L569true test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 5#L577true assume !(0 != test_~tmp~4); 8#L577-1true test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 58#L587true assume !(0 != test_~tmp___0~1); 59#L587-1true test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 99#L597true assume 0 != test_~tmp___2~0; 79#L603-1true assume !(0 != ~pumpRunning~0); 56#L634true assume !(0 != ~systemActive~0); 95#L641true havoc __utac_acc__Specification2_spec__2_#t~ret17, __utac_acc__Specification2_spec__2_#t~ret18, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~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; 22#L92-1true __utac_acc__Specification2_spec__2_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret17;havoc __utac_acc__Specification2_spec__2_#t~ret17; 68#L157true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 65#L157-1true [2020-11-29 23:55:29,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:29,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 23:55:29,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:29,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108161809] [2020-11-29 23:55:29,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:30,046 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:30,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:30,293 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:30,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:30,300 INFO L82 PathProgramCache]: Analyzing trace with hash 12573269, now seen corresponding path program 1 times [2020-11-29 23:55:30,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:30,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209714747] [2020-11-29 23:55:30,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:30,317 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:30,326 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:30,336 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:30,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:30,350 INFO L82 PathProgramCache]: Analyzing trace with hash 845869775, now seen corresponding path program 1 times [2020-11-29 23:55:30,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:30,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086475055] [2020-11-29 23:55:30,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:30,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:30,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086475055] [2020-11-29 23:55:30,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:55:30,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:55:30,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663766189] [2020-11-29 23:55:30,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:55:30,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 23:55:30,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:55:30,756 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 6 states. [2020-11-29 23:55:31,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:55:31,099 INFO L93 Difference]: Finished difference Result 262 states and 373 transitions. [2020-11-29 23:55:31,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:55:31,101 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 373 transitions. [2020-11-29 23:55:31,112 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 167 [2020-11-29 23:55:31,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 241 states and 352 transitions. [2020-11-29 23:55:31,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 241 [2020-11-29 23:55:31,124 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 241 [2020-11-29 23:55:31,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 241 states and 352 transitions. [2020-11-29 23:55:31,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:55:31,127 INFO L691 BuchiCegarLoop]: Abstraction has 241 states and 352 transitions. [2020-11-29 23:55:31,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states and 352 transitions. [2020-11-29 23:55:31,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 145. [2020-11-29 23:55:31,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-11-29 23:55:31,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 211 transitions. [2020-11-29 23:55:31,166 INFO L714 BuchiCegarLoop]: Abstraction has 145 states and 211 transitions. [2020-11-29 23:55:31,166 INFO L594 BuchiCegarLoop]: Abstraction has 145 states and 211 transitions. [2020-11-29 23:55:31,166 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:55:31,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 145 states and 211 transitions. [2020-11-29 23:55:31,169 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2020-11-29 23:55:31,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:31,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:31,170 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:31,171 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:31,171 INFO L794 eck$LassoCheckResult]: Stem: 489#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~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(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);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(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 407#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 408#L845 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 487#L853 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 491#L941 assume 0 != main_~tmp~8; 480#L917 ~methAndRunningLastTime~0 := 0; 478#L146 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 440#L157-1 [2020-11-29 23:55:31,171 INFO L796 eck$LassoCheckResult]: Loop: 440#L157-1 assume !false; 459#L568 assume test_~splverifierCounter~0 < 4; 460#L569 test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 394#L577 assume !(0 != test_~tmp~4); 396#L577-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 402#L587 assume !(0 != test_~tmp___0~1); 471#L587-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 472#L597 assume 0 != test_~tmp___2~0; 483#L603-1 assume !(0 != ~pumpRunning~0); 468#L634 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 429#L692 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret58, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 430#L666-1 assume !(0 != ~pumpRunning~0); 436#L641 havoc __utac_acc__Specification2_spec__2_#t~ret17, __utac_acc__Specification2_spec__2_#t~ret18, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~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; 422#L92-1 __utac_acc__Specification2_spec__2_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret17;havoc __utac_acc__Specification2_spec__2_#t~ret17; 423#L157 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 440#L157-1 [2020-11-29 23:55:31,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:31,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 23:55:31,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:31,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603756277] [2020-11-29 23:55:31,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:31,236 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:31,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:31,361 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:31,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:31,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1343596423, now seen corresponding path program 1 times [2020-11-29 23:55:31,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:31,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117956593] [2020-11-29 23:55:31,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:31,387 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:31,391 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:31,394 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:31,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:31,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1017345663, now seen corresponding path program 1 times [2020-11-29 23:55:31,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:31,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908712030] [2020-11-29 23:55:31,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:31,441 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:31,506 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:31,530 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:56:53,062 WARN L193 SmtUtils]: Spent 1.36 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 23:57:50,837 WARN L193 SmtUtils]: Spent 57.74 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 23:57:51,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:57:51 BoogieIcfgContainer [2020-11-29 23:57:51,059 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:57:51,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:57:51,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:57:51,060 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:57:51,061 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:29" (3/4) ... [2020-11-29 23:57:51,063 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 23:57:51,109 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ac9efd35-74c7-4766-a49f-05fc70a7fe3f/bin/uautomizer/witness.graphml [2020-11-29 23:57:51,109 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:57:51,110 INFO L168 Benchmark]: Toolchain (without parser) took 143372.66 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 103.2 MB in the beginning and 69.3 MB in the end (delta: 33.9 MB). Peak memory consumption was 60.8 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:51,111 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 83.9 MB. Free memory was 43.8 MB in the beginning and 43.8 MB in the end (delta: 40.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:57:51,111 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.24 ms. Allocated memory is still 134.2 MB. Free memory was 102.9 MB in the beginning and 99.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:51,112 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.39 ms. Allocated memory is still 134.2 MB. Free memory was 99.2 MB in the beginning and 96.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:51,112 INFO L168 Benchmark]: Boogie Preprocessor took 87.17 ms. Allocated memory is still 134.2 MB. Free memory was 96.0 MB in the beginning and 93.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:51,113 INFO L168 Benchmark]: RCFGBuilder took 1165.21 ms. Allocated memory is still 134.2 MB. Free memory was 93.4 MB in the beginning and 76.6 MB in the end (delta: 16.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:51,113 INFO L168 Benchmark]: BuchiAutomizer took 141411.95 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 76.6 MB in the beginning and 71.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 69.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:51,114 INFO L168 Benchmark]: Witness Printer took 49.25 ms. Allocated memory is still 161.5 MB. Free memory was 71.3 MB in the beginning and 69.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:51,117 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 83.9 MB. Free memory was 43.8 MB in the beginning and 43.8 MB in the end (delta: 40.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 538.24 ms. Allocated memory is still 134.2 MB. Free memory was 102.9 MB in the beginning and 99.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 111.39 ms. Allocated memory is still 134.2 MB. Free memory was 99.2 MB in the beginning and 96.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 87.17 ms. Allocated memory is still 134.2 MB. Free memory was 96.0 MB in the beginning and 93.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1165.21 ms. Allocated memory is still 134.2 MB. Free memory was 93.4 MB in the beginning and 76.6 MB in the end (delta: 16.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 141411.95 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 76.6 MB in the beginning and 71.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 69.2 MB. Max. memory is 16.1 GB. * Witness Printer took 49.25 ms. Allocated memory is still 161.5 MB. Free memory was 71.3 MB in the beginning and 69.3 MB in the end (delta: 2.0 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 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 6 locations. The remainder module has 145 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 141.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 140.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 96 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 145 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 150 SDtfs, 577 SDslu, 701 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 567]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=24653, NULL=0, NULL=1, NULL=24655, NULL=0, NULL=0, NULL=24665, NULL=0, NULL=24649, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2076acfc=0, NULL=24671, methaneLevelCritical=0, NULL=24664, NULL=24663, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bfaa54d=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c7f2b1f=0, tmp=0, NULL=24670, NULL=0, NULL=0, NULL=24652, tmp___1=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2febb65e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d26b2cf=0, NULL=0, NULL=0, NULL=0, NULL=24666, cleanupTimeShifts=4, NULL=24656, NULL=24675, NULL=24660, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=24658, NULL=0, NULL=24659, NULL=0, retValue_acc=0, NULL=24674, \result=1, head=0, pumpRunning=0, NULL=24669, \result=0, NULL=16059, NULL=24654, NULL=0, NULL=0, tmp=1, NULL=0, NULL=24672, tmp___0=0, NULL=0, NULL=0, NULL=24667, NULL=0, tmp___2=59, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=24676, NULL=16060, NULL=24651, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@447e32e4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30a4607e=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e0028b=0, head=0, tmp=0, NULL=0, NULL=0, NULL=24661, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42e23b3e=0, NULL=24668, NULL=24662, NULL=0, NULL=24657} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L140] int methAndRunningLastTime ; [L348] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L627] int pumpRunning = 0; [L628] int systemActive = 1; [L858] int cleanupTimeShifts = 4; [L932] int retValue_acc ; [L933] int tmp ; [L849] int retValue_acc ; [L852] retValue_acc = 1 [L853] return (retValue_acc); [L939] tmp = valid_product() [L941] COND TRUE \read(tmp) [L145] methAndRunningLastTime = 0 [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 Loop: [L567] COND TRUE 1 [L569] COND TRUE splverifierCounter < 4 [L575] tmp = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp)) [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp___0)) [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND TRUE \read(tmp___2) [L634] COND FALSE !(\read(pumpRunning)) [L641] COND TRUE \read(systemActive) [L689] int tmp ; [L692] COND FALSE !(\read(pumpRunning)) [L663] int tmp ; [L666] COND FALSE !(\read(pumpRunning)) [L150] int tmp ; [L151] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L173] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...