./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ab00798c-b293-4ee6-877f-607762b5a5a4/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ab00798c-b293-4ee6-877f-607762b5a5a4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ab00798c-b293-4ee6-877f-607762b5a5a4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ab00798c-b293-4ee6-877f-607762b5a5a4/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ab00798c-b293-4ee6-877f-607762b5a5a4/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ab00798c-b293-4ee6-877f-607762b5a5a4/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 d3ebf7e0857ea2577a0261191567e6475555f928 ..................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 00:35:46,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:35:46,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:35:46,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:35:46,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:35:46,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:35:46,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:35:46,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:35:46,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:35:46,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:35:46,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:35:46,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:35:46,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:35:46,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:35:46,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:35:46,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:35:46,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:35:46,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:35:46,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:35:46,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:35:46,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:35:46,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:35:46,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:35:46,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:35:46,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:35:46,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:35:46,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:35:46,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:35:46,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:35:46,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:35:46,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:35:46,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:35:46,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:35:46,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:35:46,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:35:46,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:35:46,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:35:46,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:35:46,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:35:46,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:35:46,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:35:46,636 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ab00798c-b293-4ee6-877f-607762b5a5a4/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 00:35:46,663 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:35:46,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:35:46,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:35:46,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:35:46,674 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:35:46,674 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 00:35:46,674 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 00:35:46,675 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 00:35:46,675 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 00:35:46,675 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 00:35:46,675 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 00:35:46,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:35:46,676 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:35:46,676 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 00:35:46,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:35:46,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:35:46,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:35:46,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 00:35:46,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 00:35:46,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 00:35:46,678 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:35:46,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:35:46,678 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 00:35:46,679 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:35:46,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 00:35:46,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:35:46,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:35:46,679 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 00:35:46,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:35:46,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:35:46,680 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 00:35:46,681 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 00:35:46,682 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_ab00798c-b293-4ee6-877f-607762b5a5a4/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 -> d3ebf7e0857ea2577a0261191567e6475555f928 [2019-11-20 00:35:46,849 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:35:46,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:35:46,867 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:35:46,868 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:35:46,869 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:35:46,869 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ab00798c-b293-4ee6-877f-607762b5a5a4/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c [2019-11-20 00:35:46,926 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab00798c-b293-4ee6-877f-607762b5a5a4/bin/uautomizer/data/7cdac3379/18fced3810a84d49b54a4c42f584b246/FLAG2ae252a0e [2019-11-20 00:35:47,353 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:35:47,354 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ab00798c-b293-4ee6-877f-607762b5a5a4/sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c [2019-11-20 00:35:47,365 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab00798c-b293-4ee6-877f-607762b5a5a4/bin/uautomizer/data/7cdac3379/18fced3810a84d49b54a4c42f584b246/FLAG2ae252a0e [2019-11-20 00:35:47,720 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ab00798c-b293-4ee6-877f-607762b5a5a4/bin/uautomizer/data/7cdac3379/18fced3810a84d49b54a4c42f584b246 [2019-11-20 00:35:47,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:35:47,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:35:47,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:35:47,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:35:47,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:35:47,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:35:47" (1/1) ... [2019-11-20 00:35:47,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@325112e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:47, skipping insertion in model container [2019-11-20 00:35:47,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:35:47" (1/1) ... [2019-11-20 00:35:47,736 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:35:47,782 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:35:48,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:35:48,174 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:35:48,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:35:48,302 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:35:48,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:48 WrapperNode [2019-11-20 00:35:48,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:35:48,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:35:48,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:35:48,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:35:48,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:48" (1/1) ... [2019-11-20 00:35:48,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:48" (1/1) ... [2019-11-20 00:35:48,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:35:48,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:35:48,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:35:48,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:35:48,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:48" (1/1) ... [2019-11-20 00:35:48,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:48" (1/1) ... [2019-11-20 00:35:48,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:48" (1/1) ... [2019-11-20 00:35:48,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:48" (1/1) ... [2019-11-20 00:35:48,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:48" (1/1) ... [2019-11-20 00:35:48,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:48" (1/1) ... [2019-11-20 00:35:48,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:48" (1/1) ... [2019-11-20 00:35:48,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:35:48,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:35:48,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:35:48,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:35:48,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab00798c-b293-4ee6-877f-607762b5a5a4/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 [2019-11-20 00:35:48,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:35:48,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 00:35:48,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:35:48,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:35:49,289 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:35:49,289 INFO L285 CfgBuilder]: Removed 198 assume(true) statements. [2019-11-20 00:35:49,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:35:49 BoogieIcfgContainer [2019-11-20 00:35:49,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:35:49,291 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 00:35:49,291 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 00:35:49,294 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 00:35:49,295 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:35:49,295 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 12:35:47" (1/3) ... [2019-11-20 00:35:49,297 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7bc50ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:35:49, skipping insertion in model container [2019-11-20 00:35:49,297 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:35:49,297 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:35:48" (2/3) ... [2019-11-20 00:35:49,297 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7bc50ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:35:49, skipping insertion in model container [2019-11-20 00:35:49,297 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:35:49,298 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:35:49" (3/3) ... [2019-11-20 00:35:49,301 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product47.cil.c [2019-11-20 00:35:49,356 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 00:35:49,357 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 00:35:49,357 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 00:35:49,357 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:35:49,357 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:35:49,357 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 00:35:49,357 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:35:49,357 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 00:35:49,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 132 states. [2019-11-20 00:35:49,400 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2019-11-20 00:35:49,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:35:49,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:35:49,408 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:35:49,408 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:35:49,408 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 00:35:49,408 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 132 states. [2019-11-20 00:35:49,415 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2019-11-20 00:35:49,415 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:35:49,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:35:49,416 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:35:49,417 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:35:49,421 INFO L794 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1); 8#L-1true havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 119#L74true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 114#L82true main_#t~ret38 := valid_product_#res;main_~tmp~4 := main_#t~ret38;havoc main_#t~ret38; 24#L582true assume 0 != main_~tmp~4; 28#L557true ~methAndRunningLastTime~0 := 0; 13#L461true havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 14#L472-1true [2019-11-20 00:35:49,422 INFO L796 eck$LassoCheckResult]: Loop: 14#L472-1true assume !false; 15#L918true assume test_~splverifierCounter~0 < 4; 113#L919true test_~tmp~9 := test_#t~nondet70;havoc test_#t~nondet70; 128#L927true assume !(0 != test_~tmp~9); 121#L927-1true test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 19#L937true assume !(0 != test_~tmp___0~2); 21#L937-1true test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 76#L947true assume 0 != test_~tmp___2~0; 47#L953-1true assume !(0 != ~pumpRunning~0); 126#L704true assume !(0 != ~systemActive~0); 40#L711true havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 6#L643-3true __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 12#L472true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 14#L472-1true [2019-11-20 00:35:49,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:35:49,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-20 00:35:49,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:35:49,439 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623126823] [2019-11-20 00:35:49,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:35:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:35:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:35:49,767 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:35:49,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:35:49,769 INFO L82 PathProgramCache]: Analyzing trace with hash 13558355, now seen corresponding path program 1 times [2019-11-20 00:35:49,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:35:49,769 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79417946] [2019-11-20 00:35:49,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:35:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:35:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:35:49,784 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:35:49,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:35:49,786 INFO L82 PathProgramCache]: Analyzing trace with hash 846854861, now seen corresponding path program 1 times [2019-11-20 00:35:49,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:35:49,786 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341291569] [2019-11-20 00:35:49,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:35:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:35:49,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:35:49,943 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341291569] [2019-11-20 00:35:49,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:35:49,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 00:35:49,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295998655] [2019-11-20 00:35:50,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:35:50,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 00:35:50,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-20 00:35:50,056 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 6 states. [2019-11-20 00:35:50,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:35:50,285 INFO L93 Difference]: Finished difference Result 310 states and 445 transitions. [2019-11-20 00:35:50,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 00:35:50,287 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 310 states and 445 transitions. [2019-11-20 00:35:50,297 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 199 [2019-11-20 00:35:50,306 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 310 states to 289 states and 424 transitions. [2019-11-20 00:35:50,307 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 289 [2019-11-20 00:35:50,309 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 289 [2019-11-20 00:35:50,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 289 states and 424 transitions. [2019-11-20 00:35:50,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 00:35:50,313 INFO L688 BuchiCegarLoop]: Abstraction has 289 states and 424 transitions. [2019-11-20 00:35:50,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states and 424 transitions. [2019-11-20 00:35:50,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 169. [2019-11-20 00:35:50,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-11-20 00:35:50,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 247 transitions. [2019-11-20 00:35:50,352 INFO L711 BuchiCegarLoop]: Abstraction has 169 states and 247 transitions. [2019-11-20 00:35:50,352 INFO L591 BuchiCegarLoop]: Abstraction has 169 states and 247 transitions. [2019-11-20 00:35:50,352 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 00:35:50,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 169 states and 247 transitions. [2019-11-20 00:35:50,355 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 116 [2019-11-20 00:35:50,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:35:50,356 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:35:50,356 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:35:50,356 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:35:50,357 INFO L794 eck$LassoCheckResult]: Stem: 575#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1); 470#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 471#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 581#L82 main_#t~ret38 := valid_product_#res;main_~tmp~4 := main_#t~ret38;havoc main_#t~ret38; 500#L582 assume 0 != main_~tmp~4; 501#L557 ~methAndRunningLastTime~0 := 0; 480#L461 havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 479#L472-1 [2019-11-20 00:35:50,357 INFO L796 eck$LassoCheckResult]: Loop: 479#L472-1 assume !false; 481#L918 assume test_~splverifierCounter~0 < 4; 482#L919 test_~tmp~9 := test_#t~nondet70;havoc test_#t~nondet70; 580#L927 assume !(0 != test_~tmp~9); 487#L927-1 test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 488#L937 assume !(0 != test_~tmp___0~2); 490#L937-1 test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 494#L947 assume 0 != test_~tmp___2~0; 530#L953-1 assume !(0 != ~pumpRunning~0); 533#L704 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 585#L762 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret49, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 508#L736-1 assume !(0 == ~pumpRunning~0); 506#L711 havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 466#L643-3 __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 467#L472 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 479#L472-1 [2019-11-20 00:35:50,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:35:50,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-20 00:35:50,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:35:50,358 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182628069] [2019-11-20 00:35:50,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:35:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:35:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:35:50,513 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:35:50,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:35:50,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1359357845, now seen corresponding path program 1 times [2019-11-20 00:35:50,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:35:50,520 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772648080] [2019-11-20 00:35:50,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:35:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:35:50,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:35:50,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772648080] [2019-11-20 00:35:50,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:35:50,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 00:35:50,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791042553] [2019-11-20 00:35:50,553 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 00:35:50,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:35:50,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 00:35:50,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:35:50,554 INFO L87 Difference]: Start difference. First operand 169 states and 247 transitions. cyclomatic complexity: 81 Second operand 3 states. [2019-11-20 00:35:50,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:35:50,673 INFO L93 Difference]: Finished difference Result 211 states and 293 transitions. [2019-11-20 00:35:50,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 00:35:50,674 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 211 states and 293 transitions. [2019-11-20 00:35:50,677 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2019-11-20 00:35:50,680 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 211 states to 211 states and 293 transitions. [2019-11-20 00:35:50,680 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2019-11-20 00:35:50,681 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 211 [2019-11-20 00:35:50,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 293 transitions. [2019-11-20 00:35:50,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 00:35:50,683 INFO L688 BuchiCegarLoop]: Abstraction has 211 states and 293 transitions. [2019-11-20 00:35:50,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 293 transitions. [2019-11-20 00:35:50,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2019-11-20 00:35:50,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2019-11-20 00:35:50,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 293 transitions. [2019-11-20 00:35:50,695 INFO L711 BuchiCegarLoop]: Abstraction has 211 states and 293 transitions. [2019-11-20 00:35:50,695 INFO L591 BuchiCegarLoop]: Abstraction has 211 states and 293 transitions. [2019-11-20 00:35:50,695 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 00:35:50,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 293 transitions. [2019-11-20 00:35:50,698 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2019-11-20 00:35:50,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:35:50,698 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:35:50,700 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:35:50,700 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:35:50,700 INFO L794 eck$LassoCheckResult]: Stem: 973#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1); 856#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 857#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 982#L82 main_#t~ret38 := valid_product_#res;main_~tmp~4 := main_#t~ret38;havoc main_#t~ret38; 888#L582 assume 0 != main_~tmp~4; 889#L557 ~methAndRunningLastTime~0 := 0; 867#L461 havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 868#L472-1 [2019-11-20 00:35:50,701 INFO L796 eck$LassoCheckResult]: Loop: 868#L472-1 assume !false; 1049#L918 assume test_~splverifierCounter~0 < 4; 980#L919 test_~tmp~9 := test_#t~nondet70;havoc test_#t~nondet70; 981#L927 assume !(0 != test_~tmp~9); 875#L927-1 test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 876#L937 assume !(0 != test_~tmp___0~2); 878#L937-1 test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 882#L947 assume 0 != test_~tmp___2~0; 923#L953-1 assume !(0 != ~pumpRunning~0); 990#L704 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 988#L762 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret49, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 896#L736-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 897#L683-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 959#L688-1 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 955#L881-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 956#L881-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 933#L887-1 processEnvironment__wrappee__methaneQuery_#t~ret49 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret49;havoc processEnvironment__wrappee__methaneQuery_#t~ret49; 934#L740-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 904#L711 havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1054#L643-3 __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 1052#L472 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 868#L472-1 [2019-11-20 00:35:50,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:35:50,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-20 00:35:50,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:35:50,702 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115568867] [2019-11-20 00:35:50,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:35:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:35:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:35:50,789 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:35:50,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:35:50,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1072211743, now seen corresponding path program 1 times [2019-11-20 00:35:50,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:35:50,790 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639823540] [2019-11-20 00:35:50,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:35:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:35:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:35:50,809 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:35:50,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:35:50,811 INFO L82 PathProgramCache]: Analyzing trace with hash 700929883, now seen corresponding path program 1 times [2019-11-20 00:35:50,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:35:50,812 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764734698] [2019-11-20 00:35:50,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:35:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:35:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:35:50,933 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:35:51,072 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-11-20 00:36:18,417 WARN L191 SmtUtils]: Spent 27.26 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-20 00:36:33,525 WARN L191 SmtUtils]: Spent 15.10 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-20 00:36:33,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 12:36:33 BoogieIcfgContainer [2019-11-20 00:36:33,594 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 00:36:33,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:36:33,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:36:33,595 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:36:33,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:35:49" (3/4) ... [2019-11-20 00:36:33,599 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-20 00:36:33,660 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ab00798c-b293-4ee6-877f-607762b5a5a4/bin/uautomizer/witness.graphml [2019-11-20 00:36:33,660 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:36:33,661 INFO L168 Benchmark]: Toolchain (without parser) took 45938.14 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 302.5 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -286.3 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2019-11-20 00:36:33,662 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:36:33,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-20 00:36:33,663 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:36:33,664 INFO L168 Benchmark]: Boogie Preprocessor took 48.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-20 00:36:33,664 INFO L168 Benchmark]: RCFGBuilder took 872.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 75.6 MB). Peak memory consumption was 75.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:36:33,665 INFO L168 Benchmark]: BuchiAutomizer took 44302.94 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -208.2 MB). Peak memory consumption was 377.5 MB. Max. memory is 11.5 GB. [2019-11-20 00:36:33,665 INFO L168 Benchmark]: Witness Printer took 65.81 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2019-11-20 00:36:33,668 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 579.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 872.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 75.6 MB). Peak memory consumption was 75.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 44302.94 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -208.2 MB). Peak memory consumption was 377.5 MB. Max. memory is 11.5 GB. * Witness Printer took 65.81 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 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 211 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 44.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 43.6s. 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, 120 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 211 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 354 SDtfs, 1034 SDslu, 803 SDs, 0 SdLazy, 69 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 917]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1317} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=1317, NULL=3315, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c6158b9=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=1320, NULL=1335, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4feefe85=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bae9e9f=0, NULL=0, NULL=1328, NULL=0, NULL=3314, tmp___1=0, tmp=0, NULL=1333, NULL=3310, NULL=1334, NULL=1318, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62022b7=0, NULL=1332, NULL=1324, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=1326, retValue_acc=0, \result=0, NULL=1321, NULL=0, NULL=1331, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, \result=0, NULL=3313, tmp=1, NULL=0, NULL=1327, NULL=0, \result=1, NULL=3312, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2acadb60=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ceb1f4c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d8bf5ce=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@654ef8d1=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26ede88e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64a76104=0, NULL=3311, retValue_acc=0, retValue_acc=1, tmp=1, tmp___2=56, tmp___0=0, NULL=1336, splverifierCounter=0, methAndRunningLastTime=0, \result=0, head=0, NULL=0, NULL=1319, NULL=0, NULL=1322, tmp=0, NULL=0, NULL=1330, NULL=0, NULL=0, NULL=1329, NULL=1325, NULL=1323, NULL=0, tmp=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L256] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L455] int methAndRunningLastTime ; [L494] int cleanupTimeShifts = 4; [L600] int waterLevel = 1; [L601] int methaneLevelCritical = 0; [L697] int pumpRunning = 0; [L698] int systemActive = 1; [L573] int retValue_acc ; [L574] int tmp ; [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L580] tmp = valid_product() [L582] COND TRUE \read(tmp) [L460] methAndRunningLastTime = 0 [L908] int splverifierCounter ; [L909] int tmp ; [L910] int tmp___0 ; [L911] int tmp___1 ; [L912] int tmp___2 ; [L915] splverifierCounter = 0 Loop: [L917] COND TRUE 1 [L919] COND TRUE splverifierCounter < 4 [L925] tmp = __VERIFIER_nondet_int() [L927] COND FALSE !(\read(tmp)) [L935] tmp___0 = __VERIFIER_nondet_int() [L937] COND FALSE !(\read(tmp___0)) [L945] tmp___2 = __VERIFIER_nondet_int() [L947] COND TRUE \read(tmp___2) [L704] COND FALSE !(\read(pumpRunning)) [L711] COND TRUE \read(systemActive) [L759] int tmp ; [L762] COND FALSE !(\read(pumpRunning)) [L733] int tmp ; [L736] COND TRUE ! pumpRunning [L873] int retValue_acc ; [L874] int tmp ; [L875] int tmp___0 ; [L680] int retValue_acc ; [L683] COND TRUE waterLevel < 2 [L684] retValue_acc = 1 [L685] return (retValue_acc); [L879] tmp = isHighWaterSensorDry() [L881] COND TRUE \read(tmp) [L882] tmp___0 = 0 [L886] retValue_acc = tmp___0 [L887] return (retValue_acc); [L738] tmp = isHighWaterLevel() [L740] COND FALSE !(\read(tmp)) [L465] int tmp ; [L466] int tmp___0 ; [L639] int retValue_acc ; [L642] retValue_acc = methaneLevelCritical [L643] return (retValue_acc); [L470] tmp = isMethaneLevelCritical() [L472] COND FALSE !(\read(tmp)) [L488] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...