./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product26.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_3d7bab97-259c-42a3-8aeb-247f166c1813/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3d7bab97-259c-42a3-8aeb-247f166c1813/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3d7bab97-259c-42a3-8aeb-247f166c1813/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3d7bab97-259c-42a3-8aeb-247f166c1813/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product26.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3d7bab97-259c-42a3-8aeb-247f166c1813/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3d7bab97-259c-42a3-8aeb-247f166c1813/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 b5dff7e23c934557e9ced576d0fb2c51e79caabf ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:57:22,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:57:22,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:57:22,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:57:22,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:57:22,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:57:22,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:57:22,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:57:22,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:57:22,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:57:22,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:57:22,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:57:22,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:57:22,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:57:22,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:57:22,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:57:22,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:57:22,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:57:22,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:57:22,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:57:22,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:57:22,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:57:22,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:57:22,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:57:22,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:57:22,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:57:22,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:57:22,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:57:22,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:57:22,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:57:22,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:57:22,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:57:22,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:57:22,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:57:22,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:57:22,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:57:22,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:57:22,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:57:22,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:57:22,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:57:22,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:57:22,264 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3d7bab97-259c-42a3-8aeb-247f166c1813/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:57:22,298 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:57:22,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:57:22,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:57:22,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:57:22,301 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:57:22,301 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:57:22,301 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:57:22,302 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:57:22,302 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:57:22,302 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:57:22,303 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:57:22,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:57:22,303 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:57:22,304 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:57:22,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:57:22,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:57:22,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:57:22,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:57:22,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:57:22,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:57:22,306 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:57:22,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:57:22,307 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:57:22,307 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:57:22,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:57:22,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:57:22,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:57:22,309 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:57:22,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:57:22,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:57:22,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:57:22,310 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:57:22,311 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:57:22,311 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_3d7bab97-259c-42a3-8aeb-247f166c1813/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3d7bab97-259c-42a3-8aeb-247f166c1813/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5dff7e23c934557e9ced576d0fb2c51e79caabf [2020-11-29 23:57:22,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:57:22,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:57:22,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:57:22,703 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:57:22,704 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:57:22,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3d7bab97-259c-42a3-8aeb-247f166c1813/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product26.cil.c [2020-11-29 23:57:22,805 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3d7bab97-259c-42a3-8aeb-247f166c1813/bin/uautomizer/data/b96f648a1/d811588f9012439ca632c62271ffb282/FLAG6c95e90de [2020-11-29 23:57:23,445 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:57:23,446 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3d7bab97-259c-42a3-8aeb-247f166c1813/sv-benchmarks/c/product-lines/minepump_spec5_product26.cil.c [2020-11-29 23:57:23,462 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3d7bab97-259c-42a3-8aeb-247f166c1813/bin/uautomizer/data/b96f648a1/d811588f9012439ca632c62271ffb282/FLAG6c95e90de [2020-11-29 23:57:23,725 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3d7bab97-259c-42a3-8aeb-247f166c1813/bin/uautomizer/data/b96f648a1/d811588f9012439ca632c62271ffb282 [2020-11-29 23:57:23,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:57:23,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:57:23,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:57:23,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:57:23,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:57:23,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:57:23" (1/1) ... [2020-11-29 23:57:23,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f649cd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:23, skipping insertion in model container [2020-11-29 23:57:23,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:57:23" (1/1) ... [2020-11-29 23:57:23,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:57:23,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:57:24,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:57:24,242 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:57:24,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:57:24,402 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:57:24,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:24 WrapperNode [2020-11-29 23:57:24,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:57:24,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:57:24,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:57:24,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:57:24,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:24" (1/1) ... [2020-11-29 23:57:24,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:24" (1/1) ... [2020-11-29 23:57:24,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:57:24,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:57:24,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:57:24,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:57:24,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:24" (1/1) ... [2020-11-29 23:57:24,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:24" (1/1) ... [2020-11-29 23:57:24,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:24" (1/1) ... [2020-11-29 23:57:24,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:24" (1/1) ... [2020-11-29 23:57:24,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:24" (1/1) ... [2020-11-29 23:57:24,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:24" (1/1) ... [2020-11-29 23:57:24,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:24" (1/1) ... [2020-11-29 23:57:24,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:57:24,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:57:24,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:57:24,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:57:24,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d7bab97-259c-42a3-8aeb-247f166c1813/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 23:57:24,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:57:24,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:57:24,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:57:24,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:57:25,792 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:57:25,797 INFO L298 CfgBuilder]: Removed 118 assume(true) statements. [2020-11-29 23:57:25,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:25 BoogieIcfgContainer [2020-11-29 23:57:25,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:57:25,801 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:57:25,801 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:57:25,806 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:57:25,807 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:57:25,807 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:57:23" (1/3) ... [2020-11-29 23:57:25,809 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b62ab2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:57:25, skipping insertion in model container [2020-11-29 23:57:25,809 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:57:25,809 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:24" (2/3) ... [2020-11-29 23:57:25,810 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b62ab2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:57:25, skipping insertion in model container [2020-11-29 23:57:25,810 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:57:25,810 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:25" (3/3) ... [2020-11-29 23:57:25,812 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product26.cil.c [2020-11-29 23:57:25,876 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:57:25,877 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:57:25,877 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:57:25,877 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:57:25,877 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:57:25,878 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:57:25,878 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:57:25,878 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:57:25,894 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2020-11-29 23:57:25,922 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2020-11-29 23:57:25,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:57:25,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:57:25,932 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:25,932 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:25,933 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:57:25,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2020-11-29 23:57:25,940 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2020-11-29 23:57:25,940 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:57:25,940 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:57:25,941 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:25,941 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:25,948 INFO L794 eck$LassoCheckResult]: Stem: 42#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~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);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(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 9#L-1true havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 66#L795true 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; 77#L803true main_#t~ret77 := valid_product_#res;main_~tmp~7 := main_#t~ret77;havoc main_#t~ret77; 13#L892true assume 0 != main_~tmp~7; 28#L867true ~switchedOnBeforeTS~0 := 0; 67#L912true havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 24#L933-1true [2020-11-29 23:57:25,948 INFO L796 eck$LassoCheckResult]: Loop: 24#L933-1true assume !false; 60#L714true assume test_~splverifierCounter~0 < 4; 79#L715true test_~tmp~6 := test_#t~nondet72;havoc test_#t~nondet72; 82#L723true assume !(0 != test_~tmp~6); 84#L723-1true test_~tmp___0~1 := test_#t~nondet73;havoc test_#t~nondet73; 62#L733true assume !(0 != test_~tmp___0~1); 63#L733-1true test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 45#L743true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 56#L751-2true havoc __utac_acc__Specification5_spec__2_#t~ret78;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; 72#L634true __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 51#L922true assume !(0 != ~pumpRunning~0); 43#L531true assume !(0 != ~systemActive~0); 52#L538true havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 6#L124true __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 49#L933true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 24#L933-1true [2020-11-29 23:57:25,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:25,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 23:57:25,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:25,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706945980] [2020-11-29 23:57:25,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:26,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:26,392 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:26,462 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:26,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:26,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1011284047, now seen corresponding path program 1 times [2020-11-29 23:57:26,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:26,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924808749] [2020-11-29 23:57:26,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:26,597 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 23:57:26,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924808749] [2020-11-29 23:57:26,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:57:26,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:57:26,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791479805] [2020-11-29 23:57:26,610 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:57:26,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:57:26,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:57:26,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:57:26,636 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2020-11-29 23:57:26,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:57:26,719 INFO L93 Difference]: Finished difference Result 81 states and 110 transitions. [2020-11-29 23:57:26,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:57:26,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 110 transitions. [2020-11-29 23:57:26,732 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 23:57:26,746 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 74 states and 102 transitions. [2020-11-29 23:57:26,752 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74 [2020-11-29 23:57:26,753 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 74 [2020-11-29 23:57:26,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 102 transitions. [2020-11-29 23:57:26,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:57:26,757 INFO L691 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2020-11-29 23:57:26,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 102 transitions. [2020-11-29 23:57:26,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-11-29 23:57:26,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-29 23:57:26,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2020-11-29 23:57:26,808 INFO L714 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2020-11-29 23:57:26,809 INFO L594 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2020-11-29 23:57:26,809 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:57:26,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 102 transitions. [2020-11-29 23:57:26,813 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 23:57:26,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:57:26,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:57:26,816 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:26,816 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:26,817 INFO L794 eck$LassoCheckResult]: Stem: 221#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~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);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(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 186#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 187#L795 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; 238#L803 main_#t~ret77 := valid_product_#res;main_~tmp~7 := main_#t~ret77;havoc main_#t~ret77; 194#L892 assume 0 != main_~tmp~7; 195#L867 ~switchedOnBeforeTS~0 := 0; 208#L912 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 201#L933-1 [2020-11-29 23:57:26,817 INFO L796 eck$LassoCheckResult]: Loop: 201#L933-1 assume !false; 202#L714 assume test_~splverifierCounter~0 < 4; 233#L715 test_~tmp~6 := test_#t~nondet72;havoc test_#t~nondet72; 246#L723 assume !(0 != test_~tmp~6); 242#L723-1 test_~tmp___0~1 := test_#t~nondet73;havoc test_#t~nondet73; 234#L733 assume !(0 != test_~tmp___0~1); 236#L733-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 224#L743 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 226#L751-2 havoc __utac_acc__Specification5_spec__2_#t~ret78;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; 232#L634 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 231#L922 assume !(0 != ~pumpRunning~0); 220#L531 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 188#L563 assume !(0 != ~pumpRunning~0); 189#L538 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 180#L124 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 181#L933 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 201#L933-1 [2020-11-29 23:57:26,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:26,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 23:57:26,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:26,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054596795] [2020-11-29 23:57:26,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:26,940 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:27,011 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:27,041 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:27,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:27,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1258041221, now seen corresponding path program 1 times [2020-11-29 23:57:27,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:27,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903660423] [2020-11-29 23:57:27,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:27,050 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:27,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:27,060 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:27,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:27,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1083280587, now seen corresponding path program 1 times [2020-11-29 23:57:27,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:27,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163497160] [2020-11-29 23:57:27,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:27,163 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 23:57:27,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163497160] [2020-11-29 23:57:27,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:57:27,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:57:27,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009247644] [2020-11-29 23:57:27,319 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-11-29 23:57:27,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:57:27,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:57:27,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:57:27,390 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. cyclomatic complexity: 30 Second operand 5 states. [2020-11-29 23:57:27,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:57:27,641 INFO L93 Difference]: Finished difference Result 210 states and 288 transitions. [2020-11-29 23:57:27,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:57:27,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 288 transitions. [2020-11-29 23:57:27,650 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2020-11-29 23:57:27,663 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 210 states and 288 transitions. [2020-11-29 23:57:27,664 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210 [2020-11-29 23:57:27,665 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 210 [2020-11-29 23:57:27,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 288 transitions. [2020-11-29 23:57:27,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:57:27,673 INFO L691 BuchiCegarLoop]: Abstraction has 210 states and 288 transitions. [2020-11-29 23:57:27,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states and 288 transitions. [2020-11-29 23:57:27,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 141. [2020-11-29 23:57:27,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-29 23:57:27,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 190 transitions. [2020-11-29 23:57:27,694 INFO L714 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2020-11-29 23:57:27,695 INFO L594 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2020-11-29 23:57:27,695 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 23:57:27,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 190 transitions. [2020-11-29 23:57:27,702 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2020-11-29 23:57:27,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:57:27,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:57:27,704 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:27,705 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:27,705 INFO L794 eck$LassoCheckResult]: Stem: 525#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~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);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(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 486#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 487#L795 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; 548#L803 main_#t~ret77 := valid_product_#res;main_~tmp~7 := main_#t~ret77;havoc main_#t~ret77; 494#L892 assume 0 != main_~tmp~7; 495#L867 ~switchedOnBeforeTS~0 := 0; 508#L912 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 501#L933-1 [2020-11-29 23:57:27,705 INFO L796 eck$LassoCheckResult]: Loop: 501#L933-1 assume !false; 502#L714 assume test_~splverifierCounter~0 < 4; 543#L715 test_~tmp~6 := test_#t~nondet72;havoc test_#t~nondet72; 594#L723 assume !(0 != test_~tmp~6); 593#L723-1 test_~tmp___0~1 := test_#t~nondet73;havoc test_#t~nondet73; 592#L733 assume !(0 != test_~tmp___0~1); 590#L733-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 589#L743 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 585#L751-2 havoc __utac_acc__Specification5_spec__2_#t~ret78;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; 584#L634 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 583#L922 assume !(0 != ~pumpRunning~0); 581#L531 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 488#L563 assume !(0 != ~pumpRunning~0); 489#L538 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 540#L124 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 534#L933 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;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; 535#L634-1 __utac_acc__Specification5_spec__3_#t~ret80 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 523#L937 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 501#L933-1 [2020-11-29 23:57:27,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:27,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 23:57:27,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:27,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320331419] [2020-11-29 23:57:27,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:27,818 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:27,867 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:27,894 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:27,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:27,896 INFO L82 PathProgramCache]: Analyzing trace with hash 2091787168, now seen corresponding path program 1 times [2020-11-29 23:57:27,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:27,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102118185] [2020-11-29 23:57:27,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:27,904 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:27,911 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:27,916 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:27,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:27,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1650542438, now seen corresponding path program 1 times [2020-11-29 23:57:27,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:27,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389359883] [2020-11-29 23:57:27,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:27,966 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:28,015 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:28,038 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:28,217 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-11-29 23:57:28,444 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-11-29 23:58:58,623 WARN L193 SmtUtils]: Spent 1.50 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 23:59:56,623 WARN L193 SmtUtils]: Spent 57.96 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 23:59:56,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:59:56 BoogieIcfgContainer [2020-11-29 23:59:56,768 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:59:56,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:59:56,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:59:56,769 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:59:56,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:25" (3/4) ... [2020-11-29 23:59:56,773 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 23:59:56,853 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3d7bab97-259c-42a3-8aeb-247f166c1813/bin/uautomizer/witness.graphml [2020-11-29 23:59:56,853 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:59:56,855 INFO L168 Benchmark]: Toolchain (without parser) took 153115.62 ms. Allocated memory was 109.1 MB in the beginning and 157.3 MB in the end (delta: 48.2 MB). Free memory was 76.8 MB in the beginning and 83.9 MB in the end (delta: -7.1 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:59:56,856 INFO L168 Benchmark]: CDTParser took 19.48 ms. Allocated memory is still 81.8 MB. Free memory was 52.8 MB in the beginning and 63.4 MB in the end (delta: -10.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:59:56,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.63 ms. Allocated memory is still 109.1 MB. Free memory was 76.2 MB in the beginning and 76.5 MB in the end (delta: -337.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:59:56,857 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.29 ms. Allocated memory is still 109.1 MB. Free memory was 76.5 MB in the beginning and 73.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:59:56,858 INFO L168 Benchmark]: Boogie Preprocessor took 49.93 ms. Allocated memory is still 109.1 MB. Free memory was 73.6 MB in the beginning and 71.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:59:56,859 INFO L168 Benchmark]: RCFGBuilder took 1233.81 ms. Allocated memory is still 109.1 MB. Free memory was 71.1 MB in the beginning and 58.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:59:56,860 INFO L168 Benchmark]: BuchiAutomizer took 150966.46 ms. Allocated memory was 109.1 MB in the beginning and 157.3 MB in the end (delta: 48.2 MB). Free memory was 58.2 MB in the beginning and 86.0 MB in the end (delta: -27.8 MB). Peak memory consumption was 71.8 MB. Max. memory is 16.1 GB. [2020-11-29 23:59:56,860 INFO L168 Benchmark]: Witness Printer took 85.27 ms. Allocated memory is still 157.3 MB. Free memory was 86.0 MB in the beginning and 83.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:59:56,864 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 19.48 ms. Allocated memory is still 81.8 MB. Free memory was 52.8 MB in the beginning and 63.4 MB in the end (delta: -10.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 665.63 ms. Allocated memory is still 109.1 MB. Free memory was 76.2 MB in the beginning and 76.5 MB in the end (delta: -337.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.29 ms. Allocated memory is still 109.1 MB. Free memory was 76.5 MB in the beginning and 73.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.93 ms. Allocated memory is still 109.1 MB. Free memory was 73.6 MB in the beginning and 71.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1233.81 ms. Allocated memory is still 109.1 MB. Free memory was 71.1 MB in the beginning and 58.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 150966.46 ms. Allocated memory was 109.1 MB in the beginning and 157.3 MB in the end (delta: 48.2 MB). Free memory was 58.2 MB in the beginning and 86.0 MB in the end (delta: -27.8 MB). Peak memory consumption was 71.8 MB. Max. memory is 16.1 GB. * Witness Printer took 85.27 ms. Allocated memory is still 157.3 MB. Free memory was 86.0 MB in the beginning and 83.9 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 141 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 150.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 150.2s. 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, 69 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 141 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 263 SDtfs, 426 SDslu, 298 SDs, 0 SdLazy, 85 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: 713]: 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, NULL=0, NULL=0, NULL=0, NULL=22410, NULL=0, NULL=1, NULL=22420, NULL=0, NULL=0, NULL=0, NULL=0, NULL=22413, NULL=22427, NULL=22425, methaneLevelCritical=0, NULL=22408, NULL=22404, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@621c443e=0, retValue_acc=1, tmp=1, NULL=0, tmp=0, NULL=0, NULL=22416, tmp___1=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e1fa4df=0, NULL=22412, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45e72ef8=0, NULL=22401, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@93c1fbb=0, switchedOnBeforeTS=0, NULL=22415, NULL=22406, \result=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=22426, NULL=0, NULL=0, NULL=22407, NULL=0, NULL=22422, NULL=22414, NULL=22428, NULL=0, NULL=0, retValue_acc=0, NULL=22399, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp___0=0, NULL=22424, \result=0, NULL=0, NULL=22417, NULL=0, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73afe481=0, NULL=22411, NULL=22423, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@651a51a7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66a14de7=74, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2277ad47=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@612fb209=0, NULL=22400, tmp___2=74, tmp___0=0, splverifierCounter=0, NULL=0, NULL=22409, NULL=22402, tmp=0, head=0, NULL=0, NULL=0, NULL=22405, NULL=22403, NULL=22421, NULL=0, retValue_acc=0} - 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; [L307] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L519] int pumpRunning = 0; [L520] int systemActive = 1; [L808] int cleanupTimeShifts = 4; [L906] int switchedOnBeforeTS ; [L883] int retValue_acc ; [L884] int tmp ; [L799] int retValue_acc ; [L802] retValue_acc = 1 [L803] return (retValue_acc); [L890] tmp = valid_product() [L892] COND TRUE \read(tmp) [L911] switchedOnBeforeTS = 0 [L704] int splverifierCounter ; [L705] int tmp ; [L706] int tmp___0 ; [L707] int tmp___1 ; [L708] int tmp___2 ; [L711] splverifierCounter = 0 Loop: [L713] COND TRUE 1 [L715] COND TRUE splverifierCounter < 4 [L721] tmp = __VERIFIER_nondet_int() [L723] COND FALSE !(\read(tmp)) [L731] tmp___0 = __VERIFIER_nondet_int() [L733] COND FALSE !(\read(tmp___0)) [L741] tmp___2 = __VERIFIER_nondet_int() [L743] COND TRUE \read(tmp___2) [L697] systemActive = 1 [L630] int retValue_acc ; [L633] retValue_acc = pumpRunning [L634] return (retValue_acc); [L920] switchedOnBeforeTS = isPumpRunning() [L531] COND FALSE !(\read(pumpRunning)) [L538] COND TRUE \read(systemActive) [L560] int tmp ; [L563] COND FALSE !(\read(pumpRunning)) [L926] int tmp ; [L927] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L931] tmp = getWaterLevel() [L933] COND TRUE tmp != 2 [L630] int retValue_acc ; [L633] retValue_acc = pumpRunning [L634] return (retValue_acc); [L935] tmp___0 = isPumpRunning() [L937] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...