./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9ec32896-ce67-4fdc-990c-c4f740407c7a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9ec32896-ce67-4fdc-990c-c4f740407c7a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9ec32896-ce67-4fdc-990c-c4f740407c7a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9ec32896-ce67-4fdc-990c-c4f740407c7a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9ec32896-ce67-4fdc-990c-c4f740407c7a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9ec32896-ce67-4fdc-990c-c4f740407c7a/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 df4aa9904b22b6376014a77f575431b8f0cedef3 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:42:56,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:42:56,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:42:56,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:42:56,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:42:56,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:42:56,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:42:56,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:42:56,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:42:56,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:42:56,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:42:56,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:42:56,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:42:56,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:42:56,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:42:56,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:42:56,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:42:56,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:42:56,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:42:56,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:42:56,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:42:56,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:42:56,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:42:56,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:42:56,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:42:56,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:42:56,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:42:56,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:42:56,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:42:56,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:42:56,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:42:56,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:42:56,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:42:56,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:42:56,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:42:56,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:42:56,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:42:56,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:42:56,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:42:56,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:42:56,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:42:56,204 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9ec32896-ce67-4fdc-990c-c4f740407c7a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:42:56,243 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:42:56,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:42:56,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:42:56,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:42:56,250 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:42:56,250 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:42:56,251 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:42:56,251 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:42:56,251 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:42:56,251 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:42:56,253 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:42:56,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:42:56,253 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:42:56,253 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:42:56,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:42:56,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:42:56,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:42:56,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:42:56,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:42:56,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:42:56,255 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:42:56,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:42:56,256 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:42:56,256 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:42:56,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:42:56,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:42:56,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:42:56,257 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:42:56,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:42:56,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:42:56,259 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:42:56,260 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:42:56,261 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:42:56,261 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_9ec32896-ce67-4fdc-990c-c4f740407c7a/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9ec32896-ce67-4fdc-990c-c4f740407c7a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df4aa9904b22b6376014a77f575431b8f0cedef3 [2020-12-01 15:42:56,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:42:56,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:42:56,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:42:56,596 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:42:56,597 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:42:56,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9ec32896-ce67-4fdc-990c-c4f740407c7a/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c [2020-12-01 15:42:56,702 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ec32896-ce67-4fdc-990c-c4f740407c7a/bin/uautomizer/data/ca55d59ed/19cf7b5b3bcd4f38aa492e852f312793/FLAG8281e5d0f [2020-12-01 15:42:57,306 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:42:57,307 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9ec32896-ce67-4fdc-990c-c4f740407c7a/sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c [2020-12-01 15:42:57,328 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ec32896-ce67-4fdc-990c-c4f740407c7a/bin/uautomizer/data/ca55d59ed/19cf7b5b3bcd4f38aa492e852f312793/FLAG8281e5d0f [2020-12-01 15:42:57,594 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9ec32896-ce67-4fdc-990c-c4f740407c7a/bin/uautomizer/data/ca55d59ed/19cf7b5b3bcd4f38aa492e852f312793 [2020-12-01 15:42:57,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:42:57,599 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:42:57,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:42:57,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:42:57,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:42:57,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:42:57" (1/1) ... [2020-12-01 15:42:57,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e8702f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:57, skipping insertion in model container [2020-12-01 15:42:57,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:42:57" (1/1) ... [2020-12-01 15:42:57,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:42:57,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:42:57,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:42:57,992 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:42:58,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:42:58,125 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:42:58,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:58 WrapperNode [2020-12-01 15:42:58,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:42:58,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:42:58,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:42:58,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:42:58,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:58" (1/1) ... [2020-12-01 15:42:58,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:58" (1/1) ... [2020-12-01 15:42:58,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:42:58,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:42:58,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:42:58,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:42:58,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:58" (1/1) ... [2020-12-01 15:42:58,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:58" (1/1) ... [2020-12-01 15:42:58,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:58" (1/1) ... [2020-12-01 15:42:58,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:58" (1/1) ... [2020-12-01 15:42:58,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:58" (1/1) ... [2020-12-01 15:42:58,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:58" (1/1) ... [2020-12-01 15:42:58,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:58" (1/1) ... [2020-12-01 15:42:58,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:42:58,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:42:58,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:42:58,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:42:58,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ec32896-ce67-4fdc-990c-c4f740407c7a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:42:58,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:42:58,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:42:58,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:42:58,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:42:59,614 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:42:59,617 INFO L298 CfgBuilder]: Removed 284 assume(true) statements. [2020-12-01 15:42:59,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:42:59 BoogieIcfgContainer [2020-12-01 15:42:59,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:42:59,623 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:42:59,623 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:42:59,627 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:42:59,628 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:42:59,628 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:42:57" (1/3) ... [2020-12-01 15:42:59,630 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8fbb472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:42:59, skipping insertion in model container [2020-12-01 15:42:59,630 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:42:59,631 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:42:58" (2/3) ... [2020-12-01 15:42:59,631 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8fbb472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:42:59, skipping insertion in model container [2020-12-01 15:42:59,632 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:42:59,632 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:42:59" (3/3) ... [2020-12-01 15:42:59,634 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product53.cil.c [2020-12-01 15:42:59,724 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:42:59,724 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:42:59,724 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:42:59,724 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:42:59,724 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:42:59,724 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:42:59,724 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:42:59,725 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:42:59,745 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states. [2020-12-01 15:42:59,777 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2020-12-01 15:42:59,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:42:59,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:42:59,787 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:42:59,787 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:42:59,787 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:42:59,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states. [2020-12-01 15:42:59,799 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2020-12-01 15:42:59,800 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:42:59,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:42:59,801 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:42:59,801 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:42:59,807 INFO L794 eck$LassoCheckResult]: Stem: 62#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 3#L-1true havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 4#L984true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 145#L992true main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 100#L844true assume 0 != main_~tmp~10; 178#L817true ~methAndRunningLastTime~0 := 0; 19#L725true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, 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; 22#L736-1true [2020-12-01 15:42:59,808 INFO L796 eck$LassoCheckResult]: Loop: 22#L736-1true assume !false; 65#L66true assume test_~splverifierCounter~0 < 4; 154#L67true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 49#L75true assume !(0 != test_~tmp~0); 48#L75-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 177#L85true assume !(0 != test_~tmp___0~0); 171#L85-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 126#L95true assume 0 != test_~tmp___2~0; 192#L101-2true assume !(0 != ~pumpRunning~0); 184#L503true assume !(0 != ~systemActive~0); 27#L510true havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 93#L902-1true __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 18#L736true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 22#L736-1true [2020-12-01 15:42:59,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:59,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-12-01 15:42:59,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:59,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600179255] [2020-12-01 15:42:59,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:43:00,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:43:00,099 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:43:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:43:00,223 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:43:00,279 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:43:00,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:43:00,284 INFO L82 PathProgramCache]: Analyzing trace with hash 7801740, now seen corresponding path program 1 times [2020-12-01 15:43:00,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:43:00,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571231494] [2020-12-01 15:43:00,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:43:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:43:00,300 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:43:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:43:00,313 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:43:00,319 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:43:00,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:43:00,321 INFO L82 PathProgramCache]: Analyzing trace with hash 841098246, now seen corresponding path program 1 times [2020-12-01 15:43:00,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:43:00,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609175135] [2020-12-01 15:43:00,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:43:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:43:00,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:43:00,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609175135] [2020-12-01 15:43:00,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:43:00,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:43:00,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546102267] [2020-12-01 15:43:00,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:43:00,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:43:00,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:43:00,603 INFO L87 Difference]: Start difference. First operand 193 states. Second operand 6 states. [2020-12-01 15:43:00,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:43:00,840 INFO L93 Difference]: Finished difference Result 190 states and 281 transitions. [2020-12-01 15:43:00,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:43:00,843 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 190 states and 281 transitions. [2020-12-01 15:43:00,852 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2020-12-01 15:43:00,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 190 states to 183 states and 274 transitions. [2020-12-01 15:43:00,872 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2020-12-01 15:43:00,874 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2020-12-01 15:43:00,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 274 transitions. [2020-12-01 15:43:00,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:43:00,876 INFO L692 BuchiCegarLoop]: Abstraction has 183 states and 274 transitions. [2020-12-01 15:43:00,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 274 transitions. [2020-12-01 15:43:00,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2020-12-01 15:43:00,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-12-01 15:43:00,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 274 transitions. [2020-12-01 15:43:00,916 INFO L715 BuchiCegarLoop]: Abstraction has 183 states and 274 transitions. [2020-12-01 15:43:00,916 INFO L595 BuchiCegarLoop]: Abstraction has 183 states and 274 transitions. [2020-12-01 15:43:00,916 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:43:00,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 274 transitions. [2020-12-01 15:43:00,919 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2020-12-01 15:43:00,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:43:00,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:43:00,920 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:43:00,921 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:43:00,921 INFO L794 eck$LassoCheckResult]: Stem: 570#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 418#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 419#L984 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 438#L992 main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 412#L844 assume 0 != main_~tmp~10; 413#L817 ~methAndRunningLastTime~0 := 0; 512#L725 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, 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; 508#L736-1 [2020-12-01 15:43:00,921 INFO L796 eck$LassoCheckResult]: Loop: 508#L736-1 assume !false; 516#L66 assume test_~splverifierCounter~0 < 4; 536#L67 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 537#L75 assume !(0 != test_~tmp~0); 408#L75-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 565#L85 assume !(0 != test_~tmp___0~0); 569#L85-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 459#L95 assume 0 != test_~tmp___2~0; 461#L101-2 assume !(0 != ~pumpRunning~0); 551#L503 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 555#L587 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret47, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 557#L561-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 456#L535-3 assume !(0 == ~pumpRunning~0); 457#L510 havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 523#L902-1 __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 507#L736 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 508#L736-1 [2020-12-01 15:43:00,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:43:00,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-12-01 15:43:00,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:43:00,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903405851] [2020-12-01 15:43:00,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:43:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:43:00,984 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:43:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:43:01,037 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:43:01,055 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:43:01,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:43:01,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1898042754, now seen corresponding path program 1 times [2020-12-01 15:43:01,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:43:01,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99926461] [2020-12-01 15:43:01,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:43:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:43:01,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:43:01,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99926461] [2020-12-01 15:43:01,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:43:01,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:43:01,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041811458] [2020-12-01 15:43:01,073 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:43:01,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:43:01,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:43:01,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:43:01,074 INFO L87 Difference]: Start difference. First operand 183 states and 274 transitions. cyclomatic complexity: 93 Second operand 3 states. [2020-12-01 15:43:01,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:43:01,266 INFO L93 Difference]: Finished difference Result 191 states and 268 transitions. [2020-12-01 15:43:01,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:43:01,267 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 191 states and 268 transitions. [2020-12-01 15:43:01,270 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2020-12-01 15:43:01,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 191 states to 191 states and 268 transitions. [2020-12-01 15:43:01,274 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 191 [2020-12-01 15:43:01,275 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 191 [2020-12-01 15:43:01,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 191 states and 268 transitions. [2020-12-01 15:43:01,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:43:01,277 INFO L692 BuchiCegarLoop]: Abstraction has 191 states and 268 transitions. [2020-12-01 15:43:01,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states and 268 transitions. [2020-12-01 15:43:01,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2020-12-01 15:43:01,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-12-01 15:43:01,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 268 transitions. [2020-12-01 15:43:01,291 INFO L715 BuchiCegarLoop]: Abstraction has 191 states and 268 transitions. [2020-12-01 15:43:01,291 INFO L595 BuchiCegarLoop]: Abstraction has 191 states and 268 transitions. [2020-12-01 15:43:01,291 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:43:01,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states and 268 transitions. [2020-12-01 15:43:01,293 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2020-12-01 15:43:01,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:43:01,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:43:01,299 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:43:01,299 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:43:01,300 INFO L794 eck$LassoCheckResult]: Stem: 919#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 794#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 795#L984 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 812#L992 main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 788#L844 assume 0 != main_~tmp~10; 789#L817 ~methAndRunningLastTime~0 := 0; 866#L725 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, 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; 865#L736-1 [2020-12-01 15:43:01,300 INFO L796 eck$LassoCheckResult]: Loop: 865#L736-1 assume !false; 869#L66 assume test_~splverifierCounter~0 < 4; 920#L67 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 966#L75 assume !(0 != test_~tmp~0); 964#L75-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 963#L85 assume !(0 != test_~tmp___0~0); 956#L85-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 825#L95 assume 0 != test_~tmp___2~0; 827#L101-2 assume !(0 != ~pumpRunning~0); 933#L503 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 905#L587 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret47, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 906#L561-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 828#L535-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret66, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 829#L942-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 907#L947-3 isHighWaterLevel_#t~ret66 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret66;havoc isHighWaterLevel_#t~ret66; 835#L689-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 836#L689-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 796#L695-3 processEnvironment__wrappee__highWaterSensor_#t~ret46 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret46;havoc processEnvironment__wrappee__highWaterSensor_#t~ret46; 797#L539-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 874#L510 havoc __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 875#L902-1 __utac_acc__Specification2_spec__2_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret68;havoc __utac_acc__Specification2_spec__2_#t~ret68; 864#L736 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 865#L736-1 [2020-12-01 15:43:01,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:43:01,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-12-01 15:43:01,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:43:01,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504562955] [2020-12-01 15:43:01,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:43:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:43:01,370 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:43:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:43:01,435 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:43:01,448 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:43:01,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:43:01,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1628692854, now seen corresponding path program 1 times [2020-12-01 15:43:01,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:43:01,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178066007] [2020-12-01 15:43:01,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:43:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:43:01,471 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:43:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:43:01,481 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:43:01,485 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:43:01,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:43:01,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1799090000, now seen corresponding path program 1 times [2020-12-01 15:43:01,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:43:01,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763571294] [2020-12-01 15:43:01,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:43:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:43:01,542 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:43:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:43:01,571 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:43:01,587 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:43:01,761 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2020-12-01 15:44:51,583 WARN L197 SmtUtils]: Spent 1.83 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-12-01 15:46:04,176 WARN L197 SmtUtils]: Spent 1.21 m on a formula simplification that was a NOOP. DAG size: 435 [2020-12-01 15:46:04,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:46:04 BoogieIcfgContainer [2020-12-01 15:46:04,426 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:46:04,429 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:46:04,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:46:04,430 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:46:04,431 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:42:59" (3/4) ... [2020-12-01 15:46:04,435 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-12-01 15:46:04,514 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9ec32896-ce67-4fdc-990c-c4f740407c7a/bin/uautomizer/witness.graphml [2020-12-01 15:46:04,515 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:46:04,517 INFO L168 Benchmark]: Toolchain (without parser) took 186917.04 ms. Allocated memory was 90.2 MB in the beginning and 169.9 MB in the end (delta: 79.7 MB). Free memory was 60.3 MB in the beginning and 117.1 MB in the end (delta: -56.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:46:04,517 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 90.2 MB. Free memory was 46.7 MB in the beginning and 46.7 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:46:04,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 525.98 ms. Allocated memory is still 90.2 MB. Free memory was 59.9 MB in the beginning and 56.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:46:04,519 INFO L168 Benchmark]: Boogie Procedure Inliner took 119.39 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 51.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:46:04,520 INFO L168 Benchmark]: Boogie Preprocessor took 93.93 ms. Allocated memory is still 90.2 MB. Free memory was 51.9 MB in the beginning and 48.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:46:04,521 INFO L168 Benchmark]: RCFGBuilder took 1279.14 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 48.6 MB in the beginning and 49.9 MB in the end (delta: -1.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:46:04,522 INFO L168 Benchmark]: BuchiAutomizer took 184804.95 ms. Allocated memory was 109.1 MB in the beginning and 169.9 MB in the end (delta: 60.8 MB). Free memory was 49.6 MB in the beginning and 119.1 MB in the end (delta: -69.5 MB). Peak memory consumption was 69.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:46:04,523 INFO L168 Benchmark]: Witness Printer took 86.22 ms. Allocated memory is still 169.9 MB. Free memory was 119.1 MB in the beginning and 117.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:46:04,527 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 90.2 MB. Free memory was 46.7 MB in the beginning and 46.7 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 525.98 ms. Allocated memory is still 90.2 MB. Free memory was 59.9 MB in the beginning and 56.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 119.39 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 51.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.93 ms. Allocated memory is still 90.2 MB. Free memory was 51.9 MB in the beginning and 48.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1279.14 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 48.6 MB in the beginning and 49.9 MB in the end (delta: -1.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 184804.95 ms. Allocated memory was 109.1 MB in the beginning and 169.9 MB in the end (delta: 60.8 MB). Free memory was 49.6 MB in the beginning and 119.1 MB in the end (delta: -69.5 MB). Peak memory consumption was 69.9 MB. Max. memory is 16.1 GB. * Witness Printer took 86.22 ms. Allocated memory is still 169.9 MB. Free memory was 119.1 MB in the beginning and 117.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 191 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 184.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 184.0s. Construction of modules took 0.2s. 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 191 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 490 SDtfs, 974 SDslu, 83 SDs, 0 SdLazy, 50 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=30068} State at position 1 is {NULL=0, NULL=49598, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e56ca07=51, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6788066=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4cbef2d9=0, NULL=30068, NULL=0, NULL=0, retValue_acc=1, methaneLevelCritical=0, NULL=49599, retValue_acc=0, NULL=49585, tmp___1=0, NULL=30069, NULL=0, NULL=49589, cleanupTimeShifts=4, tmp=0, NULL=49601, tmp=1, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@327c7c0d=0, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=49604, NULL=49595, NULL=0, NULL=0, \result=1, NULL=0, NULL=49605, NULL=0, NULL=0, NULL=0, tmp=1, NULL=30070, methAndRunningLastTime=0, NULL=49597, NULL=49607, head=0, tmp=0, NULL=49588, NULL=0, NULL=0, NULL=49592, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e6e11f9=0, NULL=0, NULL=49600, retValue_acc=0, NULL=49590, NULL=0, NULL=49606, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@731f7603=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33619e1f=0, NULL=0, tmp___0=0, NULL=0, NULL=49596, NULL=49591, tmp=0, NULL=0, tmp=0, NULL=49586, NULL=49584, NULL=49603, NULL=0, NULL=0, systemActive=1, NULL=0, retValue_acc=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=49587, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2548cdd3=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63f4b3c5=0, NULL=42678, tmp___0=0, tmp___2=51, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=30071, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62862fe3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58d862c2=0, NULL=49594, NULL=49602, NULL=49593, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L289] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L495] int pumpRunning = 0; [L496] int systemActive = 1; [L719] int methAndRunningLastTime ; [L758] int cleanupTimeShifts = 4; [L859] int waterLevel = 1; [L860] int methaneLevelCritical = 0; [L835] int retValue_acc ; [L836] int tmp ; [L988] int retValue_acc ; [L991] retValue_acc = 1 [L992] return (retValue_acc); [L842] tmp = valid_product() [L844] COND TRUE \read(tmp) [L724] methAndRunningLastTime = 0 [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L503] COND FALSE !(\read(pumpRunning)) [L510] COND TRUE \read(systemActive) [L584] int tmp ; [L587] COND FALSE !(\read(pumpRunning)) [L558] int tmp ; [L561] COND FALSE !(\read(pumpRunning)) [L532] int tmp ; [L535] COND TRUE ! pumpRunning [L681] int retValue_acc ; [L682] int tmp ; [L683] int tmp___0 ; [L939] int retValue_acc ; [L942] COND TRUE waterLevel < 2 [L943] retValue_acc = 1 [L944] return (retValue_acc); [L687] tmp = isHighWaterSensorDry() [L689] COND TRUE \read(tmp) [L690] tmp___0 = 0 [L694] retValue_acc = tmp___0 [L695] return (retValue_acc); [L537] tmp = isHighWaterLevel() [L539] COND FALSE !(\read(tmp)) [L729] int tmp ; [L730] int tmp___0 ; [L898] int retValue_acc ; [L901] retValue_acc = methaneLevelCritical [L902] return (retValue_acc); [L734] tmp = isMethaneLevelCritical() [L736] COND FALSE !(\read(tmp)) [L752] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...