./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_07781f1f-2c40-4a7b-bd01-730d2e056382/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_07781f1f-2c40-4a7b-bd01-730d2e056382/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_07781f1f-2c40-4a7b-bd01-730d2e056382/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_07781f1f-2c40-4a7b-bd01-730d2e056382/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_07781f1f-2c40-4a7b-bd01-730d2e056382/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_07781f1f-2c40-4a7b-bd01-730d2e056382/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 9bd2750697477c749a894a241eb18460dbfa6e62 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-07 18:55:09,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:55:09,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:55:09,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:55:09,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:55:09,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:55:09,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:55:09,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:55:09,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:55:09,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:55:09,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:55:09,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:55:09,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:55:09,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:55:09,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:55:09,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:55:09,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:55:09,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:55:09,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:55:09,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:55:09,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:55:09,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:55:09,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:55:09,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:55:09,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:55:09,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:55:09,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:55:09,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:55:09,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:55:09,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:55:09,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:55:09,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:55:09,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:55:09,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:55:09,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:55:09,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:55:09,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:55:09,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:55:09,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:55:09,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:55:09,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:55:09,313 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_07781f1f-2c40-4a7b-bd01-730d2e056382/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:55:09,324 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:55:09,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:55:09,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:55:09,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:55:09,325 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:55:09,326 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:55:09,326 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:55:09,326 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:55:09,326 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:55:09,326 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:55:09,326 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:55:09,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:55:09,326 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:55:09,327 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:55:09,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:55:09,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:55:09,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:55:09,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:55:09,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:55:09,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:55:09,328 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:55:09,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:55:09,328 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:55:09,328 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:55:09,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:55:09,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:55:09,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:55:09,328 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:55:09,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:55:09,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:55:09,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:55:09,329 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:55:09,329 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:55:09,329 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_07781f1f-2c40-4a7b-bd01-730d2e056382/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 -> 9bd2750697477c749a894a241eb18460dbfa6e62 [2019-12-07 18:55:09,432 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:55:09,441 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:55:09,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:55:09,445 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:55:09,446 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:55:09,446 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_07781f1f-2c40-4a7b-bd01-730d2e056382/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2019-12-07 18:55:09,488 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_07781f1f-2c40-4a7b-bd01-730d2e056382/bin/uautomizer/data/5f1b96149/dcd0c9bd16e5412abd19b2161c1960f5/FLAGbff75c341 [2019-12-07 18:55:09,820 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:55:09,820 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_07781f1f-2c40-4a7b-bd01-730d2e056382/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2019-12-07 18:55:09,829 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_07781f1f-2c40-4a7b-bd01-730d2e056382/bin/uautomizer/data/5f1b96149/dcd0c9bd16e5412abd19b2161c1960f5/FLAGbff75c341 [2019-12-07 18:55:09,838 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_07781f1f-2c40-4a7b-bd01-730d2e056382/bin/uautomizer/data/5f1b96149/dcd0c9bd16e5412abd19b2161c1960f5 [2019-12-07 18:55:09,840 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:55:09,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:55:09,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:55:09,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:55:09,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:55:09,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:55:09" (1/1) ... [2019-12-07 18:55:09,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7762f741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:09, skipping insertion in model container [2019-12-07 18:55:09,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:55:09" (1/1) ... [2019-12-07 18:55:09,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:55:09,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:55:10,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:55:10,106 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:55:10,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:55:10,178 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:55:10,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:10 WrapperNode [2019-12-07 18:55:10,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:55:10,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:55:10,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:55:10,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:55:10,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:10" (1/1) ... [2019-12-07 18:55:10,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:10" (1/1) ... [2019-12-07 18:55:10,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:55:10,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:55:10,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:55:10,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:55:10,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:10" (1/1) ... [2019-12-07 18:55:10,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:10" (1/1) ... [2019-12-07 18:55:10,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:10" (1/1) ... [2019-12-07 18:55:10,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:10" (1/1) ... [2019-12-07 18:55:10,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:10" (1/1) ... [2019-12-07 18:55:10,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:10" (1/1) ... [2019-12-07 18:55:10,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:10" (1/1) ... [2019-12-07 18:55:10,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:55:10,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:55:10,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:55:10,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:55:10,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_07781f1f-2c40-4a7b-bd01-730d2e056382/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 [2019-12-07 18:55:10,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:55:10,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 18:55:10,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:55:10,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:55:10,773 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:55:10,773 INFO L287 CfgBuilder]: Removed 206 assume(true) statements. [2019-12-07 18:55:10,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:55:10 BoogieIcfgContainer [2019-12-07 18:55:10,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:55:10,774 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:55:10,774 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:55:10,776 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:55:10,777 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:55:10,777 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:55:09" (1/3) ... [2019-12-07 18:55:10,778 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c1a373a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:55:10, skipping insertion in model container [2019-12-07 18:55:10,778 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:55:10,778 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:10" (2/3) ... [2019-12-07 18:55:10,778 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c1a373a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:55:10, skipping insertion in model container [2019-12-07 18:55:10,778 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:55:10,778 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:55:10" (3/3) ... [2019-12-07 18:55:10,779 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2019-12-07 18:55:10,808 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:55:10,808 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:55:10,808 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:55:10,808 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:55:10,808 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:55:10,809 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:55:10,809 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:55:10,809 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:55:10,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states. [2019-12-07 18:55:10,841 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 91 [2019-12-07 18:55:10,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:55:10,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:55:10,847 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:55:10,847 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:55:10,847 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:55:10,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states. [2019-12-07 18:55:10,853 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 91 [2019-12-07 18:55:10,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:55:10,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:55:10,854 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:55:10,854 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:55:10,857 INFO L794 eck$LassoCheckResult]: Stem: 103#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(13);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 15#L-1true havoc main_#res;havoc main_#t~ret1, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 115#L74true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 113#L82true main_#t~ret1 := valid_product_#res;main_~tmp~0 := main_#t~ret1;havoc main_#t~ret1; 100#L176true assume 0 != main_~tmp~0; 41#L150true ~switchedOnBeforeTS~0 := 0; 94#L672true havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 114#L693-1true [2019-12-07 18:55:10,858 INFO L796 eck$LassoCheckResult]: Loop: 114#L693-1true assume !false; 136#L726true assume test_~splverifierCounter~0 < 4; 93#L727true test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 101#L735true assume !(0 != test_~tmp~5); 95#L735-1true test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 141#L745true assume !(0 != test_~tmp___0~1); 142#L745-1true test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 64#L755true assume 0 != test_~tmp___2~0; 29#L761-2true havoc __utac_acc__Specification5_spec__2_#t~ret47;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 3#L921true __utac_acc__Specification5_spec__2_#t~ret47 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret47;havoc __utac_acc__Specification5_spec__2_#t~ret47; 139#L682true assume !(0 != ~pumpRunning~0); 134#L792true assume !(0 != ~systemActive~0); 87#L799true havoc __utac_acc__Specification5_spec__3_#t~ret48, __utac_acc__Specification5_spec__3_#t~ret49, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 22#L271true __utac_acc__Specification5_spec__3_#t~ret48 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret48;havoc __utac_acc__Specification5_spec__3_#t~ret48; 138#L693true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 114#L693-1true [2019-12-07 18:55:10,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:10,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-12-07 18:55:10,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:10,868 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720711818] [2019-12-07 18:55:10,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:11,069 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:55:11,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:11,070 INFO L82 PathProgramCache]: Analyzing trace with hash 96782764, now seen corresponding path program 1 times [2019-12-07 18:55:11,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:11,070 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878375781] [2019-12-07 18:55:11,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:11,081 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:55:11,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:11,082 INFO L82 PathProgramCache]: Analyzing trace with hash 2030807974, now seen corresponding path program 1 times [2019-12-07 18:55:11,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:11,083 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555244500] [2019-12-07 18:55:11,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:55:11,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:55:11,163 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555244500] [2019-12-07 18:55:11,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:55:11,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:55:11,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090572886] [2019-12-07 18:55:11,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:55:11,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:55:11,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:55:11,236 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 6 states. [2019-12-07 18:55:11,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:55:11,350 INFO L93 Difference]: Finished difference Result 141 states and 199 transitions. [2019-12-07 18:55:11,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:55:11,352 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 141 states and 199 transitions. [2019-12-07 18:55:11,356 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-12-07 18:55:11,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 141 states to 134 states and 192 transitions. [2019-12-07 18:55:11,361 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 134 [2019-12-07 18:55:11,362 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 134 [2019-12-07 18:55:11,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 134 states and 192 transitions. [2019-12-07 18:55:11,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:55:11,363 INFO L688 BuchiCegarLoop]: Abstraction has 134 states and 192 transitions. [2019-12-07 18:55:11,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states and 192 transitions. [2019-12-07 18:55:11,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-12-07 18:55:11,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-12-07 18:55:11,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 192 transitions. [2019-12-07 18:55:11,391 INFO L711 BuchiCegarLoop]: Abstraction has 134 states and 192 transitions. [2019-12-07 18:55:11,392 INFO L591 BuchiCegarLoop]: Abstraction has 134 states and 192 transitions. [2019-12-07 18:55:11,392 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:55:11,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states and 192 transitions. [2019-12-07 18:55:11,394 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-12-07 18:55:11,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:55:11,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:55:11,395 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:55:11,395 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:55:11,395 INFO L794 eck$LassoCheckResult]: Stem: 417#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(13);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 323#L-1 havoc main_#res;havoc main_#t~ret1, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 324#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 425#L82 main_#t~ret1 := valid_product_#res;main_~tmp~0 := main_#t~ret1;havoc main_#t~ret1; 415#L176 assume 0 != main_~tmp~0; 362#L150 ~switchedOnBeforeTS~0 := 0; 363#L672 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 331#L693-1 [2019-12-07 18:55:11,396 INFO L796 eck$LassoCheckResult]: Loop: 331#L693-1 assume !false; 426#L726 assume test_~splverifierCounter~0 < 4; 409#L727 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 410#L735 assume !(0 != test_~tmp~5); 411#L735-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 412#L745 assume !(0 != test_~tmp___0~1); 414#L745-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 396#L755 assume 0 != test_~tmp___2~0; 339#L761-2 havoc __utac_acc__Specification5_spec__2_#t~ret47;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 302#L921 __utac_acc__Specification5_spec__2_#t~ret47 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret47;havoc __utac_acc__Specification5_spec__2_#t~ret47; 303#L682 assume !(0 != ~pumpRunning~0); 394#L792 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 427#L850 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 383#L824-1 assume !(0 == ~pumpRunning~0); 377#L799 havoc __utac_acc__Specification5_spec__3_#t~ret48, __utac_acc__Specification5_spec__3_#t~ret49, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 334#L271 __utac_acc__Specification5_spec__3_#t~ret48 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret48;havoc __utac_acc__Specification5_spec__3_#t~ret48; 335#L693 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 331#L693-1 [2019-12-07 18:55:11,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:11,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-12-07 18:55:11,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:11,396 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968207540] [2019-12-07 18:55:11,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:11,461 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:55:11,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:11,462 INFO L82 PathProgramCache]: Analyzing trace with hash -466767723, now seen corresponding path program 1 times [2019-12-07 18:55:11,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:11,462 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418367480] [2019-12-07 18:55:11,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:55:11,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:55:11,472 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418367480] [2019-12-07 18:55:11,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:55:11,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:55:11,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984717528] [2019-12-07 18:55:11,473 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 18:55:11,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:55:11,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:55:11,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:55:11,474 INFO L87 Difference]: Start difference. First operand 134 states and 192 transitions. cyclomatic complexity: 60 Second operand 3 states. [2019-12-07 18:55:11,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:55:11,544 INFO L93 Difference]: Finished difference Result 183 states and 251 transitions. [2019-12-07 18:55:11,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:55:11,545 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 251 transitions. [2019-12-07 18:55:11,548 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2019-12-07 18:55:11,550 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 183 states and 251 transitions. [2019-12-07 18:55:11,550 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2019-12-07 18:55:11,551 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2019-12-07 18:55:11,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 251 transitions. [2019-12-07 18:55:11,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:55:11,553 INFO L688 BuchiCegarLoop]: Abstraction has 183 states and 251 transitions. [2019-12-07 18:55:11,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 251 transitions. [2019-12-07 18:55:11,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2019-12-07 18:55:11,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-12-07 18:55:11,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 251 transitions. [2019-12-07 18:55:11,564 INFO L711 BuchiCegarLoop]: Abstraction has 183 states and 251 transitions. [2019-12-07 18:55:11,564 INFO L591 BuchiCegarLoop]: Abstraction has 183 states and 251 transitions. [2019-12-07 18:55:11,564 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:55:11,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 251 transitions. [2019-12-07 18:55:11,566 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2019-12-07 18:55:11,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:55:11,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:55:11,567 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:55:11,567 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:55:11,567 INFO L794 eck$LassoCheckResult]: Stem: 744#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(13);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 646#L-1 havoc main_#res;havoc main_#t~ret1, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 647#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 752#L82 main_#t~ret1 := valid_product_#res;main_~tmp~0 := main_#t~ret1;havoc main_#t~ret1; 742#L176 assume 0 != main_~tmp~0; 685#L150 ~switchedOnBeforeTS~0 := 0; 686#L672 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 654#L693-1 [2019-12-07 18:55:11,568 INFO L796 eck$LassoCheckResult]: Loop: 654#L693-1 assume !false; 753#L726 assume test_~splverifierCounter~0 < 4; 736#L727 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 737#L735 assume !(0 != test_~tmp~5); 738#L735-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 739#L745 assume !(0 != test_~tmp___0~1); 741#L745-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 721#L755 assume 0 != test_~tmp___2~0; 662#L761-2 havoc __utac_acc__Specification5_spec__2_#t~ret47;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 625#L921 __utac_acc__Specification5_spec__2_#t~ret47 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret47;havoc __utac_acc__Specification5_spec__2_#t~ret47; 626#L682 assume !(0 != ~pumpRunning~0); 763#L792 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 756#L850 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 707#L824-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 708#L279-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 724#L284-1 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 687#L970-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 688#L970-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 655#L976-1 processEnvironment__wrappee__highWaterSensor_#t~ret54 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret54;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54; 656#L828-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 733#L799 havoc __utac_acc__Specification5_spec__3_#t~ret48, __utac_acc__Specification5_spec__3_#t~ret49, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 805#L271 __utac_acc__Specification5_spec__3_#t~ret48 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret48;havoc __utac_acc__Specification5_spec__3_#t~ret48; 764#L693 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 654#L693-1 [2019-12-07 18:55:11,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:11,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-12-07 18:55:11,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:11,568 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406867753] [2019-12-07 18:55:11,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:11,626 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:55:11,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:11,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1396372129, now seen corresponding path program 1 times [2019-12-07 18:55:11,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:11,627 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636637518] [2019-12-07 18:55:11,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:55:11,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:55:11,658 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636637518] [2019-12-07 18:55:11,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:55:11,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:55:11,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777310550] [2019-12-07 18:55:11,658 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 18:55:11,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:55:11,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:55:11,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:55:11,659 INFO L87 Difference]: Start difference. First operand 183 states and 251 transitions. cyclomatic complexity: 70 Second operand 5 states. [2019-12-07 18:55:11,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:55:11,862 INFO L93 Difference]: Finished difference Result 808 states and 1119 transitions. [2019-12-07 18:55:11,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 18:55:11,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 808 states and 1119 transitions. [2019-12-07 18:55:11,868 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 553 [2019-12-07 18:55:11,874 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 808 states to 808 states and 1119 transitions. [2019-12-07 18:55:11,874 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 808 [2019-12-07 18:55:11,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 808 [2019-12-07 18:55:11,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 808 states and 1119 transitions. [2019-12-07 18:55:11,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:55:11,879 INFO L688 BuchiCegarLoop]: Abstraction has 808 states and 1119 transitions. [2019-12-07 18:55:11,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states and 1119 transitions. [2019-12-07 18:55:11,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 356. [2019-12-07 18:55:11,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-12-07 18:55:11,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 483 transitions. [2019-12-07 18:55:11,895 INFO L711 BuchiCegarLoop]: Abstraction has 356 states and 483 transitions. [2019-12-07 18:55:11,895 INFO L591 BuchiCegarLoop]: Abstraction has 356 states and 483 transitions. [2019-12-07 18:55:11,895 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 18:55:11,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 356 states and 483 transitions. [2019-12-07 18:55:11,897 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 250 [2019-12-07 18:55:11,897 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:55:11,897 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:55:11,898 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:55:11,898 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:55:11,898 INFO L794 eck$LassoCheckResult]: Stem: 1771#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(13);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1656#L-1 havoc main_#res;havoc main_#t~ret1, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 1657#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1780#L82 main_#t~ret1 := valid_product_#res;main_~tmp~0 := main_#t~ret1;havoc main_#t~ret1; 1769#L176 assume 0 != main_~tmp~0; 1699#L150 ~switchedOnBeforeTS~0 := 0; 1700#L672 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1664#L693-1 [2019-12-07 18:55:11,899 INFO L796 eck$LassoCheckResult]: Loop: 1664#L693-1 assume !false; 1781#L726 assume test_~splverifierCounter~0 < 4; 1950#L727 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 1981#L735 assume !(0 != test_~tmp~5); 1978#L735-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 1977#L745 assume !(0 != test_~tmp___0~1); 1975#L745-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 1974#L755 assume 0 != test_~tmp___2~0; 1972#L761-2 havoc __utac_acc__Specification5_spec__2_#t~ret47;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 1971#L921 __utac_acc__Specification5_spec__2_#t~ret47 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret47;havoc __utac_acc__Specification5_spec__2_#t~ret47; 1959#L682 assume !(0 != ~pumpRunning~0); 1958#L792 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1957#L850 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1940#L824-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 1956#L279-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 1742#L284-1 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 1701#L970-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 1702#L970-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1665#L976-1 processEnvironment__wrappee__highWaterSensor_#t~ret54 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret54;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54; 1666#L828-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 1757#L799 havoc __utac_acc__Specification5_spec__3_#t~ret48, __utac_acc__Specification5_spec__3_#t~ret49, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 1953#L271 __utac_acc__Specification5_spec__3_#t~ret48 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret48;havoc __utac_acc__Specification5_spec__3_#t~ret48; 1823#L693 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 1824#L921-1 __utac_acc__Specification5_spec__3_#t~ret49 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret49;havoc __utac_acc__Specification5_spec__3_#t~ret49; 1756#L697 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1664#L693-1 [2019-12-07 18:55:11,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:11,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-12-07 18:55:11,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:11,899 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650650932] [2019-12-07 18:55:11,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:11,950 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:55:11,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:11,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1883808156, now seen corresponding path program 1 times [2019-12-07 18:55:11,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:11,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261466414] [2019-12-07 18:55:11,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:11,960 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:55:11,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:11,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1820381974, now seen corresponding path program 1 times [2019-12-07 18:55:11,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:11,961 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461623495] [2019-12-07 18:55:11,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:12,006 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:55:34,072 WARN L192 SmtUtils]: Spent 21.92 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-12-07 18:55:46,649 WARN L192 SmtUtils]: Spent 12.57 s on a formula simplification that was a NOOP. DAG size: 402 [2019-12-07 18:55:46,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:55:46 BoogieIcfgContainer [2019-12-07 18:55:46,700 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:55:46,700 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:55:46,701 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:55:46,701 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:55:46,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:55:10" (3/4) ... [2019-12-07 18:55:46,703 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 18:55:46,753 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_07781f1f-2c40-4a7b-bd01-730d2e056382/bin/uautomizer/witness.graphml [2019-12-07 18:55:46,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:55:46,754 INFO L168 Benchmark]: Toolchain (without parser) took 36913.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 943.4 MB in the beginning and 944.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 161.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:46,754 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:55:46,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -153.9 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:46,755 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:46,755 INFO L168 Benchmark]: Boogie Preprocessor took 32.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:46,756 INFO L168 Benchmark]: RCFGBuilder took 513.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:46,756 INFO L168 Benchmark]: BuchiAutomizer took 35925.97 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 53.5 MB). Free memory was 1.0 GB in the beginning and 946.8 MB in the end (delta: 62.3 MB). Peak memory consumption was 224.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:46,756 INFO L168 Benchmark]: Witness Printer took 52.45 ms. Allocated memory is still 1.2 GB. Free memory was 946.8 MB in the beginning and 944.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:46,758 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 337.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -153.9 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 513.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35925.97 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 53.5 MB). Free memory was 1.0 GB in the beginning and 946.8 MB in the end (delta: 62.3 MB). Peak memory consumption was 224.9 MB. Max. memory is 11.5 GB. * Witness Printer took 52.45 ms. Allocated memory is still 1.2 GB. Free memory was 946.8 MB in the beginning and 944.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 356 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 35.3s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 452 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 356 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 681 SDtfs, 1659 SDslu, 965 SDs, 0 SdLazy, 193 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 725]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9036} State at position 1 is {NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33356d5c=0, NULL=0, retValue_acc=0, NULL=9036, NULL=0, NULL=9041, NULL=0, NULL=0, NULL=9037, NULL=0, NULL=9052, NULL=0, NULL=0, NULL=9040, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fb3642f=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@afc4419=62, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e52dcb7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e1f82df=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75296636=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68d21378=0, NULL=0, NULL=0, tmp=0, NULL=9046, NULL=9051, tmp=1, NULL=0, tmp___1=0, NULL=9047, cleanupTimeShifts=4, retValue_acc=0, NULL=9049, switchedOnBeforeTS=0, NULL=9060, NULL=9045, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cab0dbf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24e18c4a=0, NULL=0, systemActive=1, waterLevel=1, NULL=9043, \result=1, NULL=0, NULL=0, \result=0, NULL=9038, tmp___0=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@740b9204=0, NULL=0, NULL=0, NULL=0, NULL=9056, \result=1, NULL=9042, NULL=9054, NULL=0, retValue_acc=0, NULL=0, NULL=9059, retValue_acc=1, tmp___2=62, retValue_acc=1, NULL=9055, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=9057, NULL=9048, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3070eb70=0, NULL=9044, head=0, NULL=9039, tmp=0, NULL=0, NULL=9050, NULL=0, NULL=9058, NULL=9053, NULL=0, NULL=9061} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L87] int cleanupTimeShifts = 4; [L196] int waterLevel = 1; [L197] int methaneLevelCritical = 0; [L468] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L666] int switchedOnBeforeTS ; [L782] int pumpRunning = 0; [L783] int systemActive = 1; [L167] int retValue_acc ; [L168] int tmp ; [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L174] tmp = valid_product() [L176] COND TRUE \read(tmp) [L671] switchedOnBeforeTS = 0 [L716] int splverifierCounter ; [L717] int tmp ; [L718] int tmp___0 ; [L719] int tmp___1 ; [L720] int tmp___2 ; [L723] splverifierCounter = 0 Loop: [L725] COND TRUE 1 [L727] COND TRUE splverifierCounter < 4 [L733] tmp = __VERIFIER_nondet_int() [L735] COND FALSE !(\read(tmp)) [L743] tmp___0 = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp___0)) [L753] tmp___2 = __VERIFIER_nondet_int() [L755] COND TRUE \read(tmp___2) [L917] int retValue_acc ; [L920] retValue_acc = pumpRunning [L921] return (retValue_acc); [L680] switchedOnBeforeTS = isPumpRunning() [L792] COND FALSE !(\read(pumpRunning)) [L799] COND TRUE \read(systemActive) [L847] int tmp ; [L850] COND FALSE !(\read(pumpRunning)) [L821] int tmp ; [L824] COND TRUE ! pumpRunning [L962] int retValue_acc ; [L963] int tmp ; [L964] int tmp___0 ; [L276] int retValue_acc ; [L279] COND TRUE waterLevel < 2 [L280] retValue_acc = 1 [L281] return (retValue_acc); [L968] tmp = isHighWaterSensorDry() [L970] COND TRUE \read(tmp) [L971] tmp___0 = 0 [L975] retValue_acc = tmp___0 [L976] return (retValue_acc); [L826] tmp = isHighWaterLevel() [L828] COND FALSE !(\read(tmp)) [L686] int tmp ; [L687] int tmp___0 ; [L267] int retValue_acc ; [L270] retValue_acc = waterLevel [L271] return (retValue_acc); [L691] tmp = getWaterLevel() [L693] COND TRUE tmp != 2 [L917] int retValue_acc ; [L920] retValue_acc = pumpRunning [L921] return (retValue_acc); [L695] tmp___0 = isPumpRunning() [L697] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...