./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product31.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_e25d325a-fdd5-4c62-9afe-bdf768730f52/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e25d325a-fdd5-4c62-9afe-bdf768730f52/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e25d325a-fdd5-4c62-9afe-bdf768730f52/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e25d325a-fdd5-4c62-9afe-bdf768730f52/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product31.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e25d325a-fdd5-4c62-9afe-bdf768730f52/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e25d325a-fdd5-4c62-9afe-bdf768730f52/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 da2e8e53e912f927b31c5ec5b3242bf77257bb80 ...................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:08:44,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:08:44,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:08:44,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:08:44,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:08:44,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:08:44,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:08:44,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:08:44,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:08:44,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:08:44,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:08:44,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:08:44,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:08:44,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:08:44,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:08:44,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:08:44,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:08:44,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:08:44,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:08:44,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:08:44,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:08:44,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:08:44,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:08:44,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:08:44,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:08:44,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:08:44,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:08:44,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:08:44,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:08:44,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:08:44,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:08:44,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:08:44,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:08:44,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:08:44,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:08:44,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:08:44,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:08:44,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:08:44,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:08:44,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:08:44,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:08:44,125 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e25d325a-fdd5-4c62-9afe-bdf768730f52/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 16:08:44,140 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:08:44,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:08:44,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:08:44,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:08:44,141 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:08:44,141 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 16:08:44,142 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 16:08:44,142 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 16:08:44,142 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 16:08:44,142 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 16:08:44,142 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 16:08:44,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:08:44,143 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:08:44,143 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:08:44,143 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:08:44,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:08:44,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:08:44,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 16:08:44,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 16:08:44,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 16:08:44,144 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:08:44,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:08:44,145 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 16:08:44,145 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:08:44,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 16:08:44,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:08:44,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:08:44,145 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 16:08:44,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:08:44,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:08:44,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:08:44,146 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 16:08:44,147 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 16:08:44,147 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_e25d325a-fdd5-4c62-9afe-bdf768730f52/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 -> da2e8e53e912f927b31c5ec5b3242bf77257bb80 [2019-12-07 16:08:44,252 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:08:44,260 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:08:44,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:08:44,263 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:08:44,263 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:08:44,264 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e25d325a-fdd5-4c62-9afe-bdf768730f52/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product31.cil.c [2019-12-07 16:08:44,300 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e25d325a-fdd5-4c62-9afe-bdf768730f52/bin/uautomizer/data/231da7f9c/64a7bb8956b14134846bd9671233a6b2/FLAGbd76b059d [2019-12-07 16:08:44,755 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:08:44,756 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e25d325a-fdd5-4c62-9afe-bdf768730f52/sv-benchmarks/c/product-lines/minepump_spec5_product31.cil.c [2019-12-07 16:08:44,765 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e25d325a-fdd5-4c62-9afe-bdf768730f52/bin/uautomizer/data/231da7f9c/64a7bb8956b14134846bd9671233a6b2/FLAGbd76b059d [2019-12-07 16:08:44,774 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e25d325a-fdd5-4c62-9afe-bdf768730f52/bin/uautomizer/data/231da7f9c/64a7bb8956b14134846bd9671233a6b2 [2019-12-07 16:08:44,776 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:08:44,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:08:44,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:08:44,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:08:44,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:08:44,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:08:44" (1/1) ... [2019-12-07 16:08:44,782 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 04:08:44, skipping insertion in model container [2019-12-07 16:08:44,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:08:44" (1/1) ... [2019-12-07 16:08:44,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:08:44,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:08:45,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:08:45,028 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:08:45,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:08:45,101 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:08:45,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:45 WrapperNode [2019-12-07 16:08:45,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:08:45,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:08:45,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:08:45,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:08:45,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:45" (1/1) ... [2019-12-07 16:08:45,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:45" (1/1) ... [2019-12-07 16:08:45,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:08:45,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:08:45,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:08:45,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:08:45,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:45" (1/1) ... [2019-12-07 16:08:45,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:45" (1/1) ... [2019-12-07 16:08:45,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:45" (1/1) ... [2019-12-07 16:08:45,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:45" (1/1) ... [2019-12-07 16:08:45,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:45" (1/1) ... [2019-12-07 16:08:45,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:45" (1/1) ... [2019-12-07 16:08:45,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:45" (1/1) ... [2019-12-07 16:08:45,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:08:45,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:08:45,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:08:45,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:08:45,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e25d325a-fdd5-4c62-9afe-bdf768730f52/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 16:08:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:08:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 16:08:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:08:45,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:08:45,627 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:08:45,627 INFO L287 CfgBuilder]: Removed 174 assume(true) statements. [2019-12-07 16:08:45,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:08:45 BoogieIcfgContainer [2019-12-07 16:08:45,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:08:45,628 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 16:08:45,629 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 16:08:45,631 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 16:08:45,631 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:08:45,631 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 04:08:44" (1/3) ... [2019-12-07 16:08:45,632 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b8cbc4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:08:45, skipping insertion in model container [2019-12-07 16:08:45,632 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:08:45,632 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:45" (2/3) ... [2019-12-07 16:08:45,633 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b8cbc4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:08:45, skipping insertion in model container [2019-12-07 16:08:45,633 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:08:45,633 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:08:45" (3/3) ... [2019-12-07 16:08:45,634 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product31.cil.c [2019-12-07 16:08:45,664 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 16:08:45,664 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 16:08:45,664 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 16:08:45,664 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:08:45,664 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:08:45,664 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 16:08:45,664 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:08:45,664 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 16:08:45,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2019-12-07 16:08:45,696 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-12-07 16:08:45,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:08:45,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:08:45,701 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:45,701 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:45,701 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 16:08:45,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2019-12-07 16:08:45,706 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-12-07 16:08:45,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:08:45,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:08:45,707 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:45,707 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:45,711 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 18#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 55#L972true 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; 61#L980true main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 36#L521true assume 0 != main_~tmp~5; 54#L493true ~switchedOnBeforeTS~0 := 0; 25#L907true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 60#L928-1true [2019-12-07 16:08:45,711 INFO L796 eck$LassoCheckResult]: Loop: 60#L928-1true assume !false; 21#L65true assume test_~splverifierCounter~0 < 4; 79#L66true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 92#L74true assume !(0 != test_~tmp~0); 71#L74-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 17#L84true assume !(0 != test_~tmp___0~0); 14#L84-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 44#L94true assume 0 != test_~tmp___2~0; 40#L100-1true havoc __utac_acc__Specification5_spec__2_#t~ret71;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 112#L269true __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; 59#L917true assume !(0 != ~pumpRunning~0); 52#L141true assume !(0 != ~systemActive~0); 91#L148true havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;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; 3#L420true __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 58#L928true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 60#L928-1true [2019-12-07 16:08:45,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:45,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-12-07 16:08:45,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:45,721 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758941531] [2019-12-07 16:08:45,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:45,921 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:45,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:45,922 INFO L82 PathProgramCache]: Analyzing trace with hash -240568171, now seen corresponding path program 1 times [2019-12-07 16:08:45,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:45,922 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155576953] [2019-12-07 16:08:45,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:45,933 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:45,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:45,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1693457039, now seen corresponding path program 1 times [2019-12-07 16:08:45,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:45,934 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280717420] [2019-12-07 16:08:45,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:46,019 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 16:08:46,020 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280717420] [2019-12-07 16:08:46,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:08:46,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 16:08:46,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756414286] [2019-12-07 16:08:46,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:08:46,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:08:46,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:08:46,096 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 6 states. [2019-12-07 16:08:46,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:08:46,216 INFO L93 Difference]: Finished difference Result 277 states and 388 transitions. [2019-12-07 16:08:46,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 16:08:46,219 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 277 states and 388 transitions. [2019-12-07 16:08:46,227 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 179 [2019-12-07 16:08:46,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 277 states to 256 states and 367 transitions. [2019-12-07 16:08:46,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 256 [2019-12-07 16:08:46,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 256 [2019-12-07 16:08:46,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 256 states and 367 transitions. [2019-12-07 16:08:46,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:08:46,239 INFO L688 BuchiCegarLoop]: Abstraction has 256 states and 367 transitions. [2019-12-07 16:08:46,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states and 367 transitions. [2019-12-07 16:08:46,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 155. [2019-12-07 16:08:46,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-12-07 16:08:46,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 221 transitions. [2019-12-07 16:08:46,273 INFO L711 BuchiCegarLoop]: Abstraction has 155 states and 221 transitions. [2019-12-07 16:08:46,273 INFO L591 BuchiCegarLoop]: Abstraction has 155 states and 221 transitions. [2019-12-07 16:08:46,274 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 16:08:46,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 155 states and 221 transitions. [2019-12-07 16:08:46,276 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 108 [2019-12-07 16:08:46,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:08:46,276 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:08:46,277 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:46,277 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 16:08:46,277 INFO L794 eck$LassoCheckResult]: Stem: 499#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 439#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 440#L972 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; 487#L980 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 473#L521 assume 0 != main_~tmp~5; 474#L493 ~switchedOnBeforeTS~0 := 0; 450#L907 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 411#L928-1 [2019-12-07 16:08:46,278 INFO L796 eck$LassoCheckResult]: Loop: 411#L928-1 assume !false; 443#L65 assume test_~splverifierCounter~0 < 4; 444#L66 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 501#L74 assume !(0 != test_~tmp~0); 495#L74-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 437#L84 assume !(0 != test_~tmp___0~0); 430#L84-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 431#L94 assume 0 != test_~tmp___2~0; 478#L100-1 havoc __utac_acc__Specification5_spec__2_#t~ret71;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 479#L269 __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; 492#L917 assume !(0 != ~pumpRunning~0); 452#L141 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret5, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 470#L199 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret4, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 472#L173-1 assume !(0 != ~pumpRunning~0); 465#L148 havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;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; 408#L420 __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 409#L928 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 411#L928-1 [2019-12-07 16:08:46,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:46,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-12-07 16:08:46,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:46,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525340888] [2019-12-07 16:08:46,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:46,356 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:46,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:46,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1407156793, now seen corresponding path program 1 times [2019-12-07 16:08:46,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:46,357 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574075947] [2019-12-07 16:08:46,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:46,367 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:46,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:46,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1765198145, now seen corresponding path program 1 times [2019-12-07 16:08:46,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:46,368 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005992019] [2019-12-07 16:08:46,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:46,412 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 16:08:46,412 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005992019] [2019-12-07 16:08:46,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:08:46,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:08:46,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936401578] [2019-12-07 16:08:46,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:08:46,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:08:46,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:08:46,480 INFO L87 Difference]: Start difference. First operand 155 states and 221 transitions. cyclomatic complexity: 69 Second operand 5 states. [2019-12-07 16:08:46,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:08:46,596 INFO L93 Difference]: Finished difference Result 448 states and 633 transitions. [2019-12-07 16:08:46,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 16:08:46,597 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 448 states and 633 transitions. [2019-12-07 16:08:46,601 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 210 [2019-12-07 16:08:46,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 448 states to 448 states and 633 transitions. [2019-12-07 16:08:46,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 448 [2019-12-07 16:08:46,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 448 [2019-12-07 16:08:46,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 448 states and 633 transitions. [2019-12-07 16:08:46,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:08:46,609 INFO L688 BuchiCegarLoop]: Abstraction has 448 states and 633 transitions. [2019-12-07 16:08:46,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states and 633 transitions. [2019-12-07 16:08:46,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 303. [2019-12-07 16:08:46,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2019-12-07 16:08:46,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 421 transitions. [2019-12-07 16:08:46,629 INFO L711 BuchiCegarLoop]: Abstraction has 303 states and 421 transitions. [2019-12-07 16:08:46,629 INFO L591 BuchiCegarLoop]: Abstraction has 303 states and 421 transitions. [2019-12-07 16:08:46,630 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 16:08:46,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 303 states and 421 transitions. [2019-12-07 16:08:46,631 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 210 [2019-12-07 16:08:46,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:08:46,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:08:46,632 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:46,632 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 16:08:46,632 INFO L794 eck$LassoCheckResult]: Stem: 1130#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 1058#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 1059#L972 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; 1114#L980 main_#t~ret35 := valid_product_#res;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 1092#L521 assume 0 != main_~tmp~5; 1093#L493 ~switchedOnBeforeTS~0 := 0; 1069#L907 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1030#L928-1 [2019-12-07 16:08:46,633 INFO L796 eck$LassoCheckResult]: Loop: 1030#L928-1 assume !false; 1121#L65 assume test_~splverifierCounter~0 < 4; 1241#L66 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 1239#L74 assume !(0 != test_~tmp~0); 1238#L74-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 1235#L84 assume !(0 != test_~tmp___0~0); 1232#L84-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 1229#L94 assume 0 != test_~tmp___2~0; 1227#L100-1 havoc __utac_acc__Specification5_spec__2_#t~ret71;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1261#L269 __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; 1260#L917 assume !(0 != ~pumpRunning~0); 1112#L141 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret5, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1089#L199 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret4, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1091#L173-1 assume !(0 != ~pumpRunning~0); 1246#L148 havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;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; 1027#L420 __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 1028#L928 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1117#L269-1 __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; 1029#L932 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1030#L928-1 [2019-12-07 16:08:46,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:46,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-12-07 16:08:46,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:46,633 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938594467] [2019-12-07 16:08:46,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:46,685 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:46,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:46,686 INFO L82 PathProgramCache]: Analyzing trace with hash 637007746, now seen corresponding path program 1 times [2019-12-07 16:08:46,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:46,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485340013] [2019-12-07 16:08:46,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:46,694 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:46,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:46,694 INFO L82 PathProgramCache]: Analyzing trace with hash -156676996, now seen corresponding path program 1 times [2019-12-07 16:08:46,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:46,694 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184304384] [2019-12-07 16:08:46,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:46,745 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:09:10,778 WARN L192 SmtUtils]: Spent 23.90 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-12-07 16:09:23,131 WARN L192 SmtUtils]: Spent 12.35 s on a formula simplification that was a NOOP. DAG size: 402 [2019-12-07 16:09:23,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 04:09:23 BoogieIcfgContainer [2019-12-07 16:09:23,184 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 16:09:23,184 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:09:23,185 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:09:23,185 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:09:23,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:08:45" (3/4) ... [2019-12-07 16:09:23,188 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 16:09:23,237 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e25d325a-fdd5-4c62-9afe-bdf768730f52/bin/uautomizer/witness.graphml [2019-12-07 16:09:23,237 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:09:23,238 INFO L168 Benchmark]: Toolchain (without parser) took 38461.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 945.1 MB in the beginning and 1.0 GB in the end (delta: -65.3 MB). Peak memory consumption was 85.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:09:23,239 INFO L168 Benchmark]: CDTParser took 0.13 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 16:09:23,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 85.5 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -129.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:09:23,240 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.54 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 16:09:23,240 INFO L168 Benchmark]: Boogie Preprocessor took 29.63 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 16:09:23,240 INFO L168 Benchmark]: RCFGBuilder took 451.67 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: 61.6 MB). Peak memory consumption was 61.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:09:23,241 INFO L168 Benchmark]: BuchiAutomizer took 37555.73 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -10.4 MB). Peak memory consumption was 248.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:09:23,241 INFO L168 Benchmark]: Witness Printer took 52.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:09:23,243 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 324.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 85.5 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -129.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.54 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 29.63 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 451.67 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: 61.6 MB). Peak memory consumption was 61.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 37555.73 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -10.4 MB). Peak memory consumption was 248.4 MB. Max. memory is 11.5 GB. * Witness Printer took 52.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 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 37.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 37.1s. 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: 64]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6958} State at position 1 is {NULL=6979, NULL=0, NULL=0, NULL=6974, NULL=0, NULL=6958, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6152e7fc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26393093=63, NULL=6962, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@450158e7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8dc1635=0, NULL=6978, NULL=6964, NULL=6967, methaneLevelCritical=0, tmp=1, retValue_acc=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fd9221=0, NULL=6982, NULL=0, tmp___1=0, NULL=6961, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fd62030=0, NULL=6980, cleanupTimeShifts=4, tmp=0, NULL=6970, switchedOnBeforeTS=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@496cb78b=0, NULL=6973, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bea3e6c=0, NULL=6975, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp___0=0, NULL=6968, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e5c347b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44a23241=0, NULL=6983, NULL=0, NULL=6959, NULL=0, NULL=0, tmp=1, NULL=0, NULL=6966, tmp___2=63, retValue_acc=1, NULL=6981, NULL=6969, splverifierCounter=0, NULL=0, NULL=0, NULL=6971, NULL=6965, tmp=0, head=0, retValue_acc=0, tmp=0, NULL=0, NULL=0, NULL=6972, NULL=6977, NULL=0, NULL=0, NULL=6960, NULL=6976, NULL=6963} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L129] int pumpRunning = 0; [L130] int systemActive = 1; [L345] int waterLevel = 1; [L346] int methaneLevelCritical = 0; [L434] int cleanupTimeShifts = 4; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L901] int switchedOnBeforeTS ; [L512] int retValue_acc ; [L513] int tmp ; [L976] int retValue_acc ; [L979] retValue_acc = 1 [L980] return (retValue_acc); [L519] tmp = valid_product() [L521] COND TRUE \read(tmp) [L906] switchedOnBeforeTS = 0 [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 Loop: [L64] COND TRUE 1 [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) [L265] int retValue_acc ; [L268] retValue_acc = pumpRunning [L269] return (retValue_acc); [L915] switchedOnBeforeTS = isPumpRunning() [L141] COND FALSE !(\read(pumpRunning)) [L148] COND TRUE \read(systemActive) [L196] int tmp ; [L199] COND FALSE !(\read(pumpRunning)) [L170] int tmp ; [L173] COND FALSE !(\read(pumpRunning)) [L921] int tmp ; [L922] int tmp___0 ; [L416] int retValue_acc ; [L419] retValue_acc = waterLevel [L420] return (retValue_acc); [L926] tmp = getWaterLevel() [L928] COND TRUE tmp != 2 [L265] int retValue_acc ; [L268] retValue_acc = pumpRunning [L269] return (retValue_acc); [L930] tmp___0 = isPumpRunning() [L932] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...