./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product23.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_c1c9461a-ab81-492e-9962-dbdead701ca2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c1c9461a-ab81-492e-9962-dbdead701ca2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c1c9461a-ab81-492e-9962-dbdead701ca2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c1c9461a-ab81-492e-9962-dbdead701ca2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c1c9461a-ab81-492e-9962-dbdead701ca2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c1c9461a-ab81-492e-9962-dbdead701ca2/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 ae183694bf4bf570adbc8e6a3fd448131967b766 ...................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:54:47,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:54:47,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:54:47,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:54:47,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:54:47,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:54:47,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:54:47,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:54:47,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:54:47,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:54:47,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:54:47,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:54:47,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:54:47,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:54:47,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:54:47,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:54:47,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:54:47,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:54:47,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:54:47,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:54:47,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:54:47,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:54:47,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:54:47,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:54:47,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:54:47,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:54:47,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:54:47,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:54:47,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:54:47,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:54:47,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:54:47,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:54:47,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:54:47,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:54:47,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:54:47,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:54:47,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:54:47,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:54:47,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:54:47,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:54:47,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:54:47,183 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c1c9461a-ab81-492e-9962-dbdead701ca2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 13:54:47,194 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:54:47,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:54:47,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:54:47,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:54:47,195 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:54:47,195 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 13:54:47,195 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 13:54:47,195 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 13:54:47,195 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 13:54:47,196 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 13:54:47,196 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 13:54:47,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:54:47,196 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:54:47,196 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 13:54:47,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:54:47,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:54:47,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:54:47,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 13:54:47,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 13:54:47,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 13:54:47,197 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:54:47,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:54:47,197 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 13:54:47,197 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:54:47,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 13:54:47,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:54:47,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:54:47,198 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 13:54:47,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:54:47,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:54:47,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:54:47,198 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 13:54:47,199 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 13:54:47,199 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_c1c9461a-ab81-492e-9962-dbdead701ca2/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 -> ae183694bf4bf570adbc8e6a3fd448131967b766 [2019-12-07 13:54:47,294 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:54:47,303 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:54:47,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:54:47,306 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:54:47,306 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:54:47,307 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c1c9461a-ab81-492e-9962-dbdead701ca2/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c [2019-12-07 13:54:47,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1c9461a-ab81-492e-9962-dbdead701ca2/bin/uautomizer/data/08c912378/79baa8d2c3674e989a60f3cec65c00be/FLAG2c048c906 [2019-12-07 13:54:47,682 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:54:47,683 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c1c9461a-ab81-492e-9962-dbdead701ca2/sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c [2019-12-07 13:54:47,691 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1c9461a-ab81-492e-9962-dbdead701ca2/bin/uautomizer/data/08c912378/79baa8d2c3674e989a60f3cec65c00be/FLAG2c048c906 [2019-12-07 13:54:47,700 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c1c9461a-ab81-492e-9962-dbdead701ca2/bin/uautomizer/data/08c912378/79baa8d2c3674e989a60f3cec65c00be [2019-12-07 13:54:47,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:54:47,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:54:47,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:54:47,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:54:47,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:54:47,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:54:47" (1/1) ... [2019-12-07 13:54:47,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581b80cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:47, skipping insertion in model container [2019-12-07 13:54:47,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:54:47" (1/1) ... [2019-12-07 13:54:47,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:54:47,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:54:47,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:54:47,959 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:54:48,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:54:48,027 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:54:48,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:48 WrapperNode [2019-12-07 13:54:48,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:54:48,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:54:48,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:54:48,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:54:48,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:48" (1/1) ... [2019-12-07 13:54:48,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:48" (1/1) ... [2019-12-07 13:54:48,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:54:48,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:54:48,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:54:48,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:54:48,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:48" (1/1) ... [2019-12-07 13:54:48,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:48" (1/1) ... [2019-12-07 13:54:48,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:48" (1/1) ... [2019-12-07 13:54:48,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:48" (1/1) ... [2019-12-07 13:54:48,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:48" (1/1) ... [2019-12-07 13:54:48,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:48" (1/1) ... [2019-12-07 13:54:48,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:48" (1/1) ... [2019-12-07 13:54:48,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:54:48,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:54:48,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:54:48,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:54:48,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1c9461a-ab81-492e-9962-dbdead701ca2/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 13:54:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:54:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 13:54:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:54:48,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:54:48,545 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:54:48,546 INFO L287 CfgBuilder]: Removed 174 assume(true) statements. [2019-12-07 13:54:48,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:54:48 BoogieIcfgContainer [2019-12-07 13:54:48,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:54:48,547 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 13:54:48,547 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 13:54:48,549 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 13:54:48,550 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 13:54:48,550 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 01:54:47" (1/3) ... [2019-12-07 13:54:48,550 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1effc013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:54:48, skipping insertion in model container [2019-12-07 13:54:48,551 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 13:54:48,551 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:48" (2/3) ... [2019-12-07 13:54:48,551 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1effc013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:54:48, skipping insertion in model container [2019-12-07 13:54:48,551 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 13:54:48,551 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:54:48" (3/3) ... [2019-12-07 13:54:48,552 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product23.cil.c [2019-12-07 13:54:48,586 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 13:54:48,586 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 13:54:48,586 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 13:54:48,586 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:54:48,586 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:54:48,586 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 13:54:48,586 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:54:48,586 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 13:54:48,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2019-12-07 13:54:48,617 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-12-07 13:54:48,617 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:54:48,617 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:54:48,623 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:54:48,623 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:54:48,623 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 13:54:48,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2019-12-07 13:54:48,628 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-12-07 13:54:48,628 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:54:48,628 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:54:48,628 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:54:48,628 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:54:48,632 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);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(25);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);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(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 10#L-1true havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 69#L906true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 72#L914true main_#t~ret45 := valid_product_#res;main_~tmp~3 := main_#t~ret45;havoc main_#t~ret45; 42#L601true assume 0 != main_~tmp~3; 100#L572true ~switchedOnBeforeTS~0 := 0; 71#L925true havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 110#L946-1true [2019-12-07 13:54:48,632 INFO L796 eck$LassoCheckResult]: Loop: 110#L946-1true assume !false; 101#L828true assume test_~splverifierCounter~0 < 4; 65#L829true test_~tmp~7 := test_#t~nondet66;havoc test_#t~nondet66; 75#L837true assume !(0 != test_~tmp~7); 67#L837-1true test_~tmp___0~1 := test_#t~nondet67;havoc test_#t~nondet67; 114#L847true assume !(0 != test_~tmp___0~1); 104#L847-1true test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 43#L857true assume 0 != test_~tmp___2~0; 13#L863-1true havoc __utac_acc__Specification5_spec__2_#t~ret71;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~8;havoc isPumpRunning_~retValue_acc~8;isPumpRunning_~retValue_acc~8 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~8; 19#L742true __utac_acc__Specification5_spec__2_#t~ret71 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret71;havoc __utac_acc__Specification5_spec__2_#t~ret71; 109#L935true assume !(0 != ~pumpRunning~0); 61#L631true assume !(0 != ~systemActive~0); 97#L638true havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __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~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 18#L497true __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 108#L946true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 110#L946-1true [2019-12-07 13:54:48,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:54:48,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-12-07 13:54:48,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:54:48,642 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997497149] [2019-12-07 13:54:48,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:54:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:54:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:54:48,857 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:54:48,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:54:48,858 INFO L82 PathProgramCache]: Analyzing trace with hash -240568171, now seen corresponding path program 1 times [2019-12-07 13:54:48,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:54:48,858 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778854456] [2019-12-07 13:54:48,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:54:48,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:54:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:54:48,868 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:54:48,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:54:48,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1693457039, now seen corresponding path program 1 times [2019-12-07 13:54:48,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:54:48,870 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681256322] [2019-12-07 13:54:48,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:54:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:54:48,949 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 13:54:48,949 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681256322] [2019-12-07 13:54:48,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:54:48,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 13:54:48,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632146963] [2019-12-07 13:54:49,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:54:49,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 13:54:49,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:54:49,022 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 6 states. [2019-12-07 13:54:49,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:54:49,129 INFO L93 Difference]: Finished difference Result 277 states and 388 transitions. [2019-12-07 13:54:49,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 13:54:49,131 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 277 states and 388 transitions. [2019-12-07 13:54:49,140 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 179 [2019-12-07 13:54:49,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 277 states to 256 states and 367 transitions. [2019-12-07 13:54:49,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 256 [2019-12-07 13:54:49,150 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 256 [2019-12-07 13:54:49,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 256 states and 367 transitions. [2019-12-07 13:54:49,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 13:54:49,152 INFO L688 BuchiCegarLoop]: Abstraction has 256 states and 367 transitions. [2019-12-07 13:54:49,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states and 367 transitions. [2019-12-07 13:54:49,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 155. [2019-12-07 13:54:49,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-12-07 13:54:49,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 221 transitions. [2019-12-07 13:54:49,186 INFO L711 BuchiCegarLoop]: Abstraction has 155 states and 221 transitions. [2019-12-07 13:54:49,186 INFO L591 BuchiCegarLoop]: Abstraction has 155 states and 221 transitions. [2019-12-07 13:54:49,186 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 13:54:49,186 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 155 states and 221 transitions. [2019-12-07 13:54:49,188 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 108 [2019-12-07 13:54:49,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:54:49,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:54:49,189 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:54:49,189 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 13:54:49,189 INFO L794 eck$LassoCheckResult]: Stem: 504#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);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(25);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);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(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 420#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 421#L906 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 499#L914 main_#t~ret45 := valid_product_#res;main_~tmp~3 := main_#t~ret45;havoc main_#t~ret45; 469#L601 assume 0 != main_~tmp~3; 470#L572 ~switchedOnBeforeTS~0 := 0; 501#L925 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 456#L946-1 [2019-12-07 13:54:49,190 INFO L796 eck$LassoCheckResult]: Loop: 456#L946-1 assume !false; 514#L828 assume test_~splverifierCounter~0 < 4; 495#L829 test_~tmp~7 := test_#t~nondet66;havoc test_#t~nondet66; 496#L837 assume !(0 != test_~tmp~7); 497#L837-1 test_~tmp___0~1 := test_#t~nondet67;havoc test_#t~nondet67; 498#L847 assume !(0 != test_~tmp___0~1); 494#L847-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 471#L857 assume 0 != test_~tmp___2~0; 425#L863-1 havoc __utac_acc__Specification5_spec__2_#t~ret71;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~8;havoc isPumpRunning_~retValue_acc~8;isPumpRunning_~retValue_acc~8 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~8; 426#L742 __utac_acc__Specification5_spec__2_#t~ret71 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret71;havoc __utac_acc__Specification5_spec__2_#t~ret71; 437#L935 assume !(0 != ~pumpRunning~0); 458#L631 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 481#L689 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret46, processEnvironment__wrappee__lowWaterSensor_~tmp~4;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4; 483#L663-1 assume !(0 != ~pumpRunning~0); 484#L638 havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __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~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 435#L497 __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 436#L946 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 456#L946-1 [2019-12-07 13:54:49,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:54:49,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-12-07 13:54:49,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:54:49,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205792552] [2019-12-07 13:54:49,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:54:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:54:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:54:49,260 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:54:49,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:54:49,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1407156793, now seen corresponding path program 1 times [2019-12-07 13:54:49,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:54:49,261 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992998208] [2019-12-07 13:54:49,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:54:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:54:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:54:49,271 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:54:49,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:54:49,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1765198145, now seen corresponding path program 1 times [2019-12-07 13:54:49,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:54:49,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975278841] [2019-12-07 13:54:49,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:54:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:54:49,317 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 13:54:49,317 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975278841] [2019-12-07 13:54:49,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:54:49,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:54:49,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126936295] [2019-12-07 13:54:49,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:54:49,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:54:49,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:54:49,378 INFO L87 Difference]: Start difference. First operand 155 states and 221 transitions. cyclomatic complexity: 69 Second operand 5 states. [2019-12-07 13:54:49,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:54:49,492 INFO L93 Difference]: Finished difference Result 448 states and 633 transitions. [2019-12-07 13:54:49,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 13:54:49,493 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 448 states and 633 transitions. [2019-12-07 13:54:49,499 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 210 [2019-12-07 13:54:49,504 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 448 states to 448 states and 633 transitions. [2019-12-07 13:54:49,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 448 [2019-12-07 13:54:49,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 448 [2019-12-07 13:54:49,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 448 states and 633 transitions. [2019-12-07 13:54:49,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 13:54:49,508 INFO L688 BuchiCegarLoop]: Abstraction has 448 states and 633 transitions. [2019-12-07 13:54:49,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states and 633 transitions. [2019-12-07 13:54:49,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 303. [2019-12-07 13:54:49,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2019-12-07 13:54:49,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 421 transitions. [2019-12-07 13:54:49,523 INFO L711 BuchiCegarLoop]: Abstraction has 303 states and 421 transitions. [2019-12-07 13:54:49,523 INFO L591 BuchiCegarLoop]: Abstraction has 303 states and 421 transitions. [2019-12-07 13:54:49,523 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 13:54:49,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 303 states and 421 transitions. [2019-12-07 13:54:49,524 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 210 [2019-12-07 13:54:49,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:54:49,525 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:54:49,525 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:54:49,525 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] [2019-12-07 13:54:49,525 INFO L794 eck$LassoCheckResult]: Stem: 1131#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);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(25);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);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(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 1039#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 1040#L906 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1124#L914 main_#t~ret45 := valid_product_#res;main_~tmp~3 := main_#t~ret45;havoc main_#t~ret45; 1089#L601 assume 0 != main_~tmp~3; 1090#L572 ~switchedOnBeforeTS~0 := 0; 1127#L925 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1075#L946-1 [2019-12-07 13:54:49,526 INFO L796 eck$LassoCheckResult]: Loop: 1075#L946-1 assume !false; 1215#L828 assume test_~splverifierCounter~0 < 4; 1216#L829 test_~tmp~7 := test_#t~nondet66;havoc test_#t~nondet66; 1249#L837 assume !(0 != test_~tmp~7); 1247#L837-1 test_~tmp___0~1 := test_#t~nondet67;havoc test_#t~nondet67; 1246#L847 assume !(0 != test_~tmp___0~1); 1243#L847-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 1236#L857 assume 0 != test_~tmp___2~0; 1233#L863-1 havoc __utac_acc__Specification5_spec__2_#t~ret71;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~8;havoc isPumpRunning_~retValue_acc~8;isPumpRunning_~retValue_acc~8 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~8; 1256#L742 __utac_acc__Specification5_spec__2_#t~ret71 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret71;havoc __utac_acc__Specification5_spec__2_#t~ret71; 1253#L935 assume !(0 != ~pumpRunning~0); 1117#L631 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1103#L689 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret46, processEnvironment__wrappee__lowWaterSensor_~tmp~4;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4; 1105#L663-1 assume !(0 != ~pumpRunning~0); 1235#L638 havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __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~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 1234#L497 __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 1161#L946 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~8;havoc isPumpRunning_~retValue_acc~8;isPumpRunning_~retValue_acc~8 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~8; 1162#L742-1 __utac_acc__Specification5_spec__3_#t~ret73 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 1123#L950 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1075#L946-1 [2019-12-07 13:54:49,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:54:49,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-12-07 13:54:49,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:54:49,526 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946952706] [2019-12-07 13:54:49,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:54:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:54:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:54:49,573 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:54:49,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:54:49,573 INFO L82 PathProgramCache]: Analyzing trace with hash 637007746, now seen corresponding path program 1 times [2019-12-07 13:54:49,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:54:49,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577377169] [2019-12-07 13:54:49,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:54:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:54:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:54:49,582 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:54:49,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:54:49,582 INFO L82 PathProgramCache]: Analyzing trace with hash -156676996, now seen corresponding path program 1 times [2019-12-07 13:54:49,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:54:49,583 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843739110] [2019-12-07 13:54:49,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:54:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:54:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:54:49,631 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:55:17,409 WARN L192 SmtUtils]: Spent 27.67 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-12-07 13:55:31,158 WARN L192 SmtUtils]: Spent 13.74 s on a formula simplification that was a NOOP. DAG size: 402 [2019-12-07 13:55:31,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 01:55:31 BoogieIcfgContainer [2019-12-07 13:55:31,210 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 13:55:31,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:55:31,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:55:31,210 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:55:31,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:54:48" (3/4) ... [2019-12-07 13:55:31,213 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 13:55:31,249 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c1c9461a-ab81-492e-9962-dbdead701ca2/bin/uautomizer/witness.graphml [2019-12-07 13:55:31,249 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:55:31,250 INFO L168 Benchmark]: Toolchain (without parser) took 43547.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 945.1 MB in the beginning and 960.0 MB in the end (delta: -14.9 MB). Peak memory consumption was 139.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:55:31,250 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:55:31,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -150.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:55:31,251 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.17 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 13:55:31,251 INFO L168 Benchmark]: Boogie Preprocessor took 29.26 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:55:31,251 INFO L168 Benchmark]: RCFGBuilder took 446.57 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: 65.9 MB). Peak memory consumption was 65.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:55:31,251 INFO L168 Benchmark]: BuchiAutomizer took 42663.02 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 47.2 MB). Free memory was 1.0 GB in the beginning and 969.0 MB in the end (delta: 49.5 MB). Peak memory consumption was 232.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:55:31,252 INFO L168 Benchmark]: Witness Printer took 38.46 ms. Allocated memory is still 1.2 GB. Free memory was 969.0 MB in the beginning and 960.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:55:31,253 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 323.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -150.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.17 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 29.26 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 446.57 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: 65.9 MB). Peak memory consumption was 65.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 42663.02 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 47.2 MB). Free memory was 1.0 GB in the beginning and 969.0 MB in the end (delta: 49.5 MB). Peak memory consumption was 232.7 MB. Max. memory is 11.5 GB. * Witness Printer took 38.46 ms. Allocated memory is still 1.2 GB. Free memory was 969.0 MB in the beginning and 960.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 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 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 6 locations. The remainder module has 303 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 42.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 42.2s. 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, 246 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 303 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 408 SDtfs, 1170 SDslu, 1228 SDs, 0 SdLazy, 139 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 827]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5894} State at position 1 is {NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f07c908=0, NULL=0, NULL=0, NULL=5894, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=16341, NULL=0, NULL=16344, NULL=16340, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@361dfb6c=0, retValue_acc=1, tmp=1, tmp=0, tmp=0, tmp___1=0, NULL=12314, NULL=5895, NULL=16337, NULL=5901, NULL=16343, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=12310, NULL=12311, NULL=5898, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29afafd4=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=16345, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57528a2f=0, NULL=16339, NULL=0, NULL=0, NULL=0, NULL=12313, NULL=0, NULL=0, \result=1, NULL=16342, head=0, pumpRunning=0, tmp___0=0, \result=0, NULL=5897, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76234363=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67ed6834=0, NULL=12316, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d2deb89=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a2ca990=50, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@100c2dee=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36195cb7=0, NULL=12317, tmp___2=50, retValue_acc=1, NULL=12315, tmp___0=0, splverifierCounter=0, head=0, NULL=0, tmp=0, NULL=16338, NULL=5896, NULL=0, NULL=12312, NULL=0, NULL=0, NULL=5899, NULL=5900, NULL=12309, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L422] int waterLevel = 1; [L423] int methaneLevelCritical = 0; [L511] int cleanupTimeShifts = 4; [L619] int pumpRunning = 0; [L620] int systemActive = 1; [L919] int switchedOnBeforeTS ; [L592] int retValue_acc ; [L593] int tmp ; [L910] int retValue_acc ; [L913] retValue_acc = 1 [L914] return (retValue_acc); [L599] tmp = valid_product() [L601] COND TRUE \read(tmp) [L924] switchedOnBeforeTS = 0 [L818] int splverifierCounter ; [L819] int tmp ; [L820] int tmp___0 ; [L821] int tmp___1 ; [L822] int tmp___2 ; [L825] splverifierCounter = 0 Loop: [L827] COND TRUE 1 [L829] COND TRUE splverifierCounter < 4 [L835] tmp = __VERIFIER_nondet_int() [L837] COND FALSE !(\read(tmp)) [L845] tmp___0 = __VERIFIER_nondet_int() [L847] COND FALSE !(\read(tmp___0)) [L855] tmp___2 = __VERIFIER_nondet_int() [L857] COND TRUE \read(tmp___2) [L738] int retValue_acc ; [L741] retValue_acc = pumpRunning [L742] return (retValue_acc); [L933] switchedOnBeforeTS = isPumpRunning() [L631] COND FALSE !(\read(pumpRunning)) [L638] COND TRUE \read(systemActive) [L686] int tmp ; [L689] COND FALSE !(\read(pumpRunning)) [L660] int tmp ; [L663] COND FALSE !(\read(pumpRunning)) [L939] int tmp ; [L940] int tmp___0 ; [L493] int retValue_acc ; [L496] retValue_acc = waterLevel [L497] return (retValue_acc); [L944] tmp = getWaterLevel() [L946] COND TRUE tmp != 2 [L738] int retValue_acc ; [L741] retValue_acc = pumpRunning [L742] return (retValue_acc); [L948] tmp___0 = isPumpRunning() [L950] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...