./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product16.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_966b3a88-49cc-4b96-af0f-630d34b73ce1/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_966b3a88-49cc-4b96-af0f-630d34b73ce1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_966b3a88-49cc-4b96-af0f-630d34b73ce1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_966b3a88-49cc-4b96-af0f-630d34b73ce1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_966b3a88-49cc-4b96-af0f-630d34b73ce1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_966b3a88-49cc-4b96-af0f-630d34b73ce1/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 39eaf5a35c9a0b00068a6452bd8f9de288aeab79 .................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:52:01,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:52:01,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:52:01,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:52:01,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:52:01,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:52:01,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:52:01,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:52:01,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:52:01,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:52:01,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:52:01,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:52:01,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:52:01,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:52:01,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:52:01,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:52:01,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:52:01,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:52:01,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:52:01,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:52:01,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:52:01,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:52:01,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:52:01,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:52:01,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:52:01,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:52:01,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:52:01,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:52:01,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:52:01,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:52:01,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:52:01,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:52:01,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:52:01,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:52:01,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:52:01,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:52:01,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:52:01,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:52:01,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:52:01,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:52:01,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:52:01,389 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_966b3a88-49cc-4b96-af0f-630d34b73ce1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:52:01,415 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:52:01,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:52:01,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:52:01,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:52:01,417 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:52:01,417 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:52:01,418 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:52:01,418 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:52:01,418 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:52:01,418 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:52:01,419 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:52:01,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:52:01,419 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:52:01,419 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:52:01,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:52:01,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:52:01,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:52:01,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:52:01,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:52:01,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:52:01,421 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:52:01,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:52:01,421 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:52:01,422 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:52:01,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:52:01,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:52:01,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:52:01,423 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:52:01,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:52:01,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:52:01,423 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:52:01,424 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:52:01,425 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:52:01,425 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_966b3a88-49cc-4b96-af0f-630d34b73ce1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_966b3a88-49cc-4b96-af0f-630d34b73ce1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39eaf5a35c9a0b00068a6452bd8f9de288aeab79 [2020-11-30 00:52:01,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:52:01,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:52:01,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:52:01,735 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:52:01,736 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:52:01,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_966b3a88-49cc-4b96-af0f-630d34b73ce1/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c [2020-11-30 00:52:01,804 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_966b3a88-49cc-4b96-af0f-630d34b73ce1/bin/uautomizer/data/46354ab77/1ae9f897250649778b25754beb08d78c/FLAG0aafff3bb [2020-11-30 00:52:02,377 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:52:02,378 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_966b3a88-49cc-4b96-af0f-630d34b73ce1/sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c [2020-11-30 00:52:02,392 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_966b3a88-49cc-4b96-af0f-630d34b73ce1/bin/uautomizer/data/46354ab77/1ae9f897250649778b25754beb08d78c/FLAG0aafff3bb [2020-11-30 00:52:02,684 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_966b3a88-49cc-4b96-af0f-630d34b73ce1/bin/uautomizer/data/46354ab77/1ae9f897250649778b25754beb08d78c [2020-11-30 00:52:02,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:52:02,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:52:02,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:52:02,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:52:02,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:52:02,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:52:02" (1/1) ... [2020-11-30 00:52:02,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e15c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:02, skipping insertion in model container [2020-11-30 00:52:02,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:52:02" (1/1) ... [2020-11-30 00:52:02,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:52:02,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:52:03,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:52:03,163 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:52:03,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:52:03,315 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:52:03,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:03 WrapperNode [2020-11-30 00:52:03,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:52:03,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:52:03,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:52:03,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:52:03,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:03" (1/1) ... [2020-11-30 00:52:03,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:03" (1/1) ... [2020-11-30 00:52:03,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:52:03,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:52:03,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:52:03,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:52:03,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:03" (1/1) ... [2020-11-30 00:52:03,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:03" (1/1) ... [2020-11-30 00:52:03,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:03" (1/1) ... [2020-11-30 00:52:03,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:03" (1/1) ... [2020-11-30 00:52:03,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:03" (1/1) ... [2020-11-30 00:52:03,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:03" (1/1) ... [2020-11-30 00:52:03,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:03" (1/1) ... [2020-11-30 00:52:03,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:52:03,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:52:03,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:52:03,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:52:03,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_966b3a88-49cc-4b96-af0f-630d34b73ce1/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 00:52:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:52:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:52:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:52:03,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:52:04,523 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:52:04,524 INFO L298 CfgBuilder]: Removed 122 assume(true) statements. [2020-11-30 00:52:04,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:52:04 BoogieIcfgContainer [2020-11-30 00:52:04,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:52:04,527 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:52:04,527 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:52:04,531 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:52:04,531 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:52:04,532 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:52:02" (1/3) ... [2020-11-30 00:52:04,533 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6117baac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:52:04, skipping insertion in model container [2020-11-30 00:52:04,533 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:52:04,534 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:03" (2/3) ... [2020-11-30 00:52:04,534 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6117baac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:52:04, skipping insertion in model container [2020-11-30 00:52:04,534 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:52:04,534 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:52:04" (3/3) ... [2020-11-30 00:52:04,536 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product16.cil.c [2020-11-30 00:52:04,582 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:52:04,582 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:52:04,582 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:52:04,582 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:52:04,583 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:52:04,583 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:52:04,583 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:52:04,583 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:52:04,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2020-11-30 00:52:04,622 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-30 00:52:04,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:52:04,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:52:04,631 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:52:04,631 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:52:04,632 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:52:04,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2020-11-30 00:52:04,640 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-30 00:52:04,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:52:04,640 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:52:04,641 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:52:04,642 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:52:04,646 INFO L794 eck$LassoCheckResult]: Stem: 50#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~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 12#L-1true havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 69#L587true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 73#L595true main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 77#L551true assume 0 != main_~tmp~4; 45#L523true ~switchedOnBeforeTS~0 := 0; 41#L417true havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 9#L438-1true [2020-11-30 00:52:04,646 INFO L796 eck$LassoCheckResult]: Loop: 9#L438-1true assume !false; 67#L803true assume test_~splverifierCounter~0 < 4; 3#L804true test_~tmp~7 := test_#t~nondet66;havoc test_#t~nondet66; 40#L812true assume !(0 != test_~tmp~7); 46#L812-1true test_~tmp___0~1 := test_#t~nondet67;havoc test_#t~nondet67; 5#L822true assume !(0 != test_~tmp___0~1); 10#L822-1true test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 70#L832true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 78#L840-1true havoc __utac_acc__Specification5_spec__2_#t~ret42;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 36#L728true __utac_acc__Specification5_spec__2_#t~ret42 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret42;havoc __utac_acc__Specification5_spec__2_#t~ret42; 8#L427true assume !(0 != ~pumpRunning~0); 52#L626true assume !(0 != ~systemActive~0); 32#L633true havoc __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~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; 17#L936true __utac_acc__Specification5_spec__3_#t~ret43 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret43;havoc __utac_acc__Specification5_spec__3_#t~ret43; 6#L438true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 9#L438-1true [2020-11-30 00:52:04,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:52:04,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 00:52:04,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:52:04,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255226311] [2020-11-30 00:52:04,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:52:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:52:04,904 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:52:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:52:05,070 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:52:05,126 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:52:05,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:52:05,134 INFO L82 PathProgramCache]: Analyzing trace with hash 674918200, now seen corresponding path program 1 times [2020-11-30 00:52:05,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:52:05,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456416967] [2020-11-30 00:52:05,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:52:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:52:05,223 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 00:52:05,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456416967] [2020-11-30 00:52:05,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:52:05,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:52:05,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471041087] [2020-11-30 00:52:05,235 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:52:05,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:52:05,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:52:05,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:52:05,253 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2020-11-30 00:52:05,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:52:05,324 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions. [2020-11-30 00:52:05,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:52:05,327 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 147 states and 203 transitions. [2020-11-30 00:52:05,334 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2020-11-30 00:52:05,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 147 states to 133 states and 188 transitions. [2020-11-30 00:52:05,342 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 133 [2020-11-30 00:52:05,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 133 [2020-11-30 00:52:05,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 133 states and 188 transitions. [2020-11-30 00:52:05,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:52:05,345 INFO L691 BuchiCegarLoop]: Abstraction has 133 states and 188 transitions. [2020-11-30 00:52:05,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states and 188 transitions. [2020-11-30 00:52:05,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2020-11-30 00:52:05,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-11-30 00:52:05,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 185 transitions. [2020-11-30 00:52:05,404 INFO L714 BuchiCegarLoop]: Abstraction has 131 states and 185 transitions. [2020-11-30 00:52:05,404 INFO L594 BuchiCegarLoop]: Abstraction has 131 states and 185 transitions. [2020-11-30 00:52:05,404 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:52:05,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 185 transitions. [2020-11-30 00:52:05,411 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2020-11-30 00:52:05,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:52:05,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:52:05,412 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:52:05,412 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:52:05,412 INFO L794 eck$LassoCheckResult]: Stem: 299#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~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 258#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 259#L587 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 311#L595 main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 315#L551 assume 0 != main_~tmp~4; 296#L523 ~switchedOnBeforeTS~0 := 0; 291#L417 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 292#L438-1 [2020-11-30 00:52:05,413 INFO L796 eck$LassoCheckResult]: Loop: 292#L438-1 assume !false; 330#L803 assume test_~splverifierCounter~0 < 4; 236#L804 test_~tmp~7 := test_#t~nondet66;havoc test_#t~nondet66; 237#L812 assume !(0 != test_~tmp~7); 290#L812-1 test_~tmp___0~1 := test_#t~nondet67;havoc test_#t~nondet67; 241#L822 assume !(0 != test_~tmp___0~1); 243#L822-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 254#L832 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 313#L840-1 havoc __utac_acc__Specification5_spec__2_#t~ret42;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 343#L728 __utac_acc__Specification5_spec__2_#t~ret42 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret42;havoc __utac_acc__Specification5_spec__2_#t~ret42; 341#L427 assume !(0 != ~pumpRunning~0); 340#L626 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 338#L658 assume !(0 != ~pumpRunning~0); 336#L633 havoc __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~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; 335#L936 __utac_acc__Specification5_spec__3_#t~ret43 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret43;havoc __utac_acc__Specification5_spec__3_#t~ret43; 333#L438 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 292#L438-1 [2020-11-30 00:52:05,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:52:05,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 00:52:05,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:52:05,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900994023] [2020-11-30 00:52:05,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:52:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:52:05,506 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:52:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:52:05,581 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:52:05,612 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:52:05,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:52:05,613 INFO L82 PathProgramCache]: Analyzing trace with hash -572900795, now seen corresponding path program 1 times [2020-11-30 00:52:05,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:52:05,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375999492] [2020-11-30 00:52:05,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:52:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:52:05,624 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:52:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:52:05,629 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:52:05,635 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:52:05,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:52:05,636 INFO L82 PathProgramCache]: Analyzing trace with hash -747661429, now seen corresponding path program 1 times [2020-11-30 00:52:05,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:52:05,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807128546] [2020-11-30 00:52:05,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:52:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:52:05,760 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 00:52:05,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807128546] [2020-11-30 00:52:05,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:52:05,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:52:05,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309046361] [2020-11-30 00:52:05,883 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-11-30 00:52:06,043 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-11-30 00:52:06,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:52:06,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:52:06,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:52:06,052 INFO L87 Difference]: Start difference. First operand 131 states and 185 transitions. cyclomatic complexity: 57 Second operand 5 states. [2020-11-30 00:52:06,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:52:06,252 INFO L93 Difference]: Finished difference Result 356 states and 495 transitions. [2020-11-30 00:52:06,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:52:06,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 356 states and 495 transitions. [2020-11-30 00:52:06,263 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 178 [2020-11-30 00:52:06,267 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 356 states to 356 states and 495 transitions. [2020-11-30 00:52:06,267 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 356 [2020-11-30 00:52:06,277 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 356 [2020-11-30 00:52:06,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 356 states and 495 transitions. [2020-11-30 00:52:06,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:52:06,279 INFO L691 BuchiCegarLoop]: Abstraction has 356 states and 495 transitions. [2020-11-30 00:52:06,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states and 495 transitions. [2020-11-30 00:52:06,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 255. [2020-11-30 00:52:06,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-11-30 00:52:06,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 349 transitions. [2020-11-30 00:52:06,295 INFO L714 BuchiCegarLoop]: Abstraction has 255 states and 349 transitions. [2020-11-30 00:52:06,296 INFO L594 BuchiCegarLoop]: Abstraction has 255 states and 349 transitions. [2020-11-30 00:52:06,296 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:52:06,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 255 states and 349 transitions. [2020-11-30 00:52:06,298 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 178 [2020-11-30 00:52:06,298 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:52:06,298 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:52:06,299 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:52:06,299 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:52:06,299 INFO L794 eck$LassoCheckResult]: Stem: 819#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~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 769#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 770#L587 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 837#L595 main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 845#L551 assume 0 != main_~tmp~4; 814#L523 ~switchedOnBeforeTS~0 := 0; 806#L417 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 807#L438-1 [2020-11-30 00:52:06,300 INFO L796 eck$LassoCheckResult]: Loop: 807#L438-1 assume !false; 947#L803 assume test_~splverifierCounter~0 < 4; 948#L804 test_~tmp~7 := test_#t~nondet66;havoc test_#t~nondet66; 958#L812 assume !(0 != test_~tmp~7); 951#L812-1 test_~tmp___0~1 := test_#t~nondet67;havoc test_#t~nondet67; 950#L822 assume !(0 != test_~tmp___0~1); 946#L822-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 944#L832 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 937#L840-1 havoc __utac_acc__Specification5_spec__2_#t~ret42;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 966#L728 __utac_acc__Specification5_spec__2_#t~ret42 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret42;havoc __utac_acc__Specification5_spec__2_#t~ret42; 965#L427 assume !(0 != ~pumpRunning~0); 964#L626 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 961#L658 assume !(0 != ~pumpRunning~0); 957#L633 havoc __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~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; 956#L936 __utac_acc__Specification5_spec__3_#t~ret43 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret43;havoc __utac_acc__Specification5_spec__3_#t~ret43; 955#L438 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 954#L728-1 __utac_acc__Specification5_spec__3_#t~ret44 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 953#L442 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 807#L438-1 [2020-11-30 00:52:06,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:52:06,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-30 00:52:06,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:52:06,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136163075] [2020-11-30 00:52:06,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:52:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:52:06,354 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:52:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:52:06,392 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:52:06,402 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:52:06,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:52:06,403 INFO L82 PathProgramCache]: Analyzing trace with hash -801866080, now seen corresponding path program 1 times [2020-11-30 00:52:06,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:52:06,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313538330] [2020-11-30 00:52:06,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:52:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:52:06,409 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:52:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:52:06,413 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:52:06,416 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:52:06,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:52:06,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1243110810, now seen corresponding path program 1 times [2020-11-30 00:52:06,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:52:06,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619362126] [2020-11-30 00:52:06,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:52:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:52:06,456 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:52:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:52:06,505 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:52:06,522 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:52:06,663 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-11-30 00:52:06,785 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-11-30 00:53:38,616 WARN L193 SmtUtils]: Spent 1.53 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 00:54:56,899 WARN L193 SmtUtils]: Spent 1.30 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 00:54:57,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:54:57 BoogieIcfgContainer [2020-11-30 00:54:57,350 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:54:57,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:54:57,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:54:57,352 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:54:57,359 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:52:04" (3/4) ... [2020-11-30 00:54:57,363 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:54:57,454 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_966b3a88-49cc-4b96-af0f-630d34b73ce1/bin/uautomizer/witness.graphml [2020-11-30 00:54:57,454 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:54:57,456 INFO L168 Benchmark]: Toolchain (without parser) took 174767.69 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 60.9 MB in the beginning and 28.8 MB in the end (delta: 32.0 MB). Peak memory consumption was 72.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:54:57,457 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory was 51.6 MB in the beginning and 51.6 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:54:57,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 624.50 ms. Allocated memory is still 92.3 MB. Free memory was 60.6 MB in the beginning and 58.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:54:57,463 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.86 ms. Allocated memory is still 92.3 MB. Free memory was 58.7 MB in the beginning and 55.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:54:57,471 INFO L168 Benchmark]: Boogie Preprocessor took 49.59 ms. Allocated memory is still 92.3 MB. Free memory was 55.7 MB in the beginning and 53.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:54:57,472 INFO L168 Benchmark]: RCFGBuilder took 1092.16 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 53.7 MB in the beginning and 56.7 MB in the end (delta: -3.1 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:54:57,472 INFO L168 Benchmark]: BuchiAutomizer took 172823.46 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 56.7 MB in the beginning and 30.9 MB in the end (delta: 25.8 MB). Peak memory consumption was 57.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:54:57,473 INFO L168 Benchmark]: Witness Printer took 103.63 ms. Allocated memory is still 134.2 MB. Free memory was 30.9 MB in the beginning and 28.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:54:57,476 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory was 51.6 MB in the beginning and 51.6 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 624.50 ms. Allocated memory is still 92.3 MB. Free memory was 60.6 MB in the beginning and 58.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.86 ms. Allocated memory is still 92.3 MB. Free memory was 58.7 MB in the beginning and 55.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.59 ms. Allocated memory is still 92.3 MB. Free memory was 55.7 MB in the beginning and 53.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1092.16 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 53.7 MB in the beginning and 56.7 MB in the end (delta: -3.1 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 172823.46 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 56.7 MB in the beginning and 30.9 MB in the end (delta: 25.8 MB). Peak memory consumption was 57.2 MB. Max. memory is 16.1 GB. * Witness Printer took 103.63 ms. Allocated memory is still 134.2 MB. Free memory was 30.9 MB in the beginning and 28.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 255 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 172.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 172.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 103 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 255 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 259 SDtfs, 404 SDslu, 387 SDs, 0 SdLazy, 77 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 802]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2671} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b45e193=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ae5cfbf=0, NULL=2675, NULL=0, NULL=2671, retValue_acc=0, NULL=2676, NULL=0, NULL=2695, NULL=2682, NULL=2679, methaneLevelCritical=0, NULL=2690, tmp=1, NULL=0, tmp=0, tmp___1=0, NULL=2686, NULL=0, NULL=0, NULL=2688, NULL=2674, NULL=2683, cleanupTimeShifts=4, NULL=2693, switchedOnBeforeTS=0, NULL=2698, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c07d825=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60f4ff56=0, \result=0, NULL=2677, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62096e0d=0, NULL=0, NULL=0, NULL=0, NULL=2699, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=2696, \result=0, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76e913ff=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e1a4571=70, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f1a4585=0, NULL=0, NULL=0, NULL=2692, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d6a0e1f=0, retValue_acc=1, NULL=2689, NULL=0, NULL=0, NULL=0, NULL=2672, NULL=2680, NULL=0, retValue_acc=1, NULL=2673, tmp___2=70, NULL=0, NULL=2694, tmp___0=0, NULL=2691, splverifierCounter=0, NULL=0, NULL=0, NULL=2684, NULL=2697, NULL=2681, head=0, NULL=0, NULL=0, tmp=0, NULL=2687, NULL=0, NULL=0, retValue_acc=0, NULL=2678, NULL=2685} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L411] int switchedOnBeforeTS ; [L460] int cleanupTimeShifts = 4; [L616] int pumpRunning = 0; [L617] int systemActive = 1; [L861] int waterLevel = 1; [L862] int methaneLevelCritical = 0; [L542] int retValue_acc ; [L543] int tmp ; [L591] int retValue_acc ; [L594] retValue_acc = 1 [L595] return (retValue_acc); [L549] tmp = valid_product() [L551] COND TRUE \read(tmp) [L416] switchedOnBeforeTS = 0 [L793] int splverifierCounter ; [L794] int tmp ; [L795] int tmp___0 ; [L796] int tmp___1 ; [L797] int tmp___2 ; [L800] splverifierCounter = 0 Loop: [L802] COND TRUE 1 [L804] COND TRUE splverifierCounter < 4 [L810] tmp = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp)) [L820] tmp___0 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___0)) [L830] tmp___2 = __VERIFIER_nondet_int() [L832] COND TRUE \read(tmp___2) [L787] systemActive = 1 [L724] int retValue_acc ; [L727] retValue_acc = pumpRunning [L728] return (retValue_acc); [L425] switchedOnBeforeTS = isPumpRunning() [L626] COND FALSE !(\read(pumpRunning)) [L633] COND TRUE \read(systemActive) [L655] int tmp ; [L658] COND FALSE !(\read(pumpRunning)) [L431] int tmp ; [L432] int tmp___0 ; [L932] int retValue_acc ; [L935] retValue_acc = waterLevel [L936] return (retValue_acc); [L436] tmp = getWaterLevel() [L438] COND TRUE tmp != 2 [L724] int retValue_acc ; [L727] retValue_acc = pumpRunning [L728] return (retValue_acc); [L440] tmp___0 = isPumpRunning() [L442] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...