./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_06cf78d7-1045-47f2-8e53-c7519f88a156/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_06cf78d7-1045-47f2-8e53-c7519f88a156/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_06cf78d7-1045-47f2-8e53-c7519f88a156/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_06cf78d7-1045-47f2-8e53-c7519f88a156/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_06cf78d7-1045-47f2-8e53-c7519f88a156/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_06cf78d7-1045-47f2-8e53-c7519f88a156/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 dac33dda1b1afd5a9a188848bdc9374832c4af5e ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-a4ecdab [2020-11-30 00:22:51,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:22:51,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:22:51,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:22:51,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:22:51,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:22:51,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:22:51,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:22:51,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:22:51,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:22:51,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:22:51,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:22:51,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:22:51,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:22:51,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:22:51,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:22:51,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:22:51,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:22:51,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:22:51,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:22:51,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:22:51,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:22:51,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:22:51,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:22:51,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:22:51,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:22:51,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:22:51,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:22:51,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:22:51,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:22:51,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:22:51,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:22:51,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:22:51,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:22:51,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:22:51,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:22:51,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:22:51,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:22:51,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:22:51,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:22:51,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:22:51,625 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_06cf78d7-1045-47f2-8e53-c7519f88a156/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:22:51,669 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:22:51,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:22:51,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:22:51,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:22:51,672 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:22:51,672 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:22:51,673 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:22:51,673 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:22:51,673 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:22:51,673 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:22:51,675 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:22:51,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:22:51,675 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:22:51,675 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:22:51,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:22:51,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:22:51,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:22:51,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:22:51,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:22:51,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:22:51,677 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:22:51,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:22:51,677 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:22:51,678 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:22:51,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:22:51,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:22:51,678 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:22:51,679 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:22:51,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:22:51,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:22:51,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:22:51,681 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:22:51,683 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:22:51,683 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_06cf78d7-1045-47f2-8e53-c7519f88a156/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_06cf78d7-1045-47f2-8e53-c7519f88a156/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dac33dda1b1afd5a9a188848bdc9374832c4af5e [2020-11-30 00:22:51,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:22:51,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:22:51,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:22:51,991 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:22:51,992 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:22:51,996 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_06cf78d7-1045-47f2-8e53-c7519f88a156/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2020-11-30 00:22:52,107 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_06cf78d7-1045-47f2-8e53-c7519f88a156/bin/uautomizer/data/afdadd4a0/f600ada0aeaf414ba720457b497f0ebe/FLAG4a55fd2e6 [2020-11-30 00:22:52,618 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:22:52,619 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_06cf78d7-1045-47f2-8e53-c7519f88a156/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2020-11-30 00:22:52,642 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_06cf78d7-1045-47f2-8e53-c7519f88a156/bin/uautomizer/data/afdadd4a0/f600ada0aeaf414ba720457b497f0ebe/FLAG4a55fd2e6 [2020-11-30 00:22:52,959 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_06cf78d7-1045-47f2-8e53-c7519f88a156/bin/uautomizer/data/afdadd4a0/f600ada0aeaf414ba720457b497f0ebe [2020-11-30 00:22:52,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:22:52,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:22:52,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:22:52,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:22:52,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:22:52,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:22:52" (1/1) ... [2020-11-30 00:22:52,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46041a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:52, skipping insertion in model container [2020-11-30 00:22:52,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:22:52" (1/1) ... [2020-11-30 00:22:52,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:22:53,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:22:53,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:22:53,349 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:22:53,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:22:53,490 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:22:53,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:53 WrapperNode [2020-11-30 00:22:53,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:22:53,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:22:53,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:22:53,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:22:53,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:53" (1/1) ... [2020-11-30 00:22:53,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:53" (1/1) ... [2020-11-30 00:22:53,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:22:53,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:22:53,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:22:53,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:22:53,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:53" (1/1) ... [2020-11-30 00:22:53,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:53" (1/1) ... [2020-11-30 00:22:53,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:53" (1/1) ... [2020-11-30 00:22:53,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:53" (1/1) ... [2020-11-30 00:22:53,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:53" (1/1) ... [2020-11-30 00:22:53,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:53" (1/1) ... [2020-11-30 00:22:53,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:53" (1/1) ... [2020-11-30 00:22:53,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:22:53,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:22:53,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:22:53,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:22:53,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06cf78d7-1045-47f2-8e53-c7519f88a156/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 [2020-11-30 00:22:53,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:22:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:22:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:22:53,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:22:54,629 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:22:54,630 INFO L298 CfgBuilder]: Removed 166 assume(true) statements. [2020-11-30 00:22:54,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:22:54 BoogieIcfgContainer [2020-11-30 00:22:54,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:22:54,634 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:22:54,634 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:22:54,638 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:22:54,638 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:22:54,639 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:22:52" (1/3) ... [2020-11-30 00:22:54,640 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@765aca77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:22:54, skipping insertion in model container [2020-11-30 00:22:54,640 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:22:54,641 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:53" (2/3) ... [2020-11-30 00:22:54,641 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@765aca77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:22:54, skipping insertion in model container [2020-11-30 00:22:54,641 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:22:54,641 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:22:54" (3/3) ... [2020-11-30 00:22:54,643 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2020-11-30 00:22:54,699 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:22:54,699 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:22:54,699 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:22:54,699 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:22:54,699 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:22:54,700 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:22:54,700 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:22:54,700 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:22:54,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2020-11-30 00:22:54,754 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-30 00:22:54,755 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:22:54,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:22:54,762 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:22:54,762 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:54,762 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:22:54,762 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2020-11-30 00:22:54,769 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-30 00:22:54,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:22:54,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:22:54,770 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:22:54,770 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:54,797 INFO L794 eck$LassoCheckResult]: Stem: 83#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.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(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 10#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 75#L837true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 80#L845true main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 3#L932true assume 0 != main_~tmp~8; 49#L909true havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 50#L419-1true [2020-11-30 00:22:54,797 INFO L796 eck$LassoCheckResult]: Loop: 50#L419-1true assume !false; 34#L560true assume test_~splverifierCounter~0 < 4; 94#L561true test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 98#L569true assume !(0 != test_~tmp~4); 101#L569-1true test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 37#L579true assume !(0 != test_~tmp___0~1); 38#L579-1true test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 81#L589true assume 0 != test_~tmp___2~0; 60#L595-1true assume !(0 != ~pumpRunning~0); 30#L626true assume !(0 != ~systemActive~0); 77#L633true havoc __utac_acc__Specification1_spec__1_#t~ret42, __utac_acc__Specification1_spec__1_#t~ret43, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 86#L495-1true __utac_acc__Specification1_spec__1_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret42;havoc __utac_acc__Specification1_spec__1_#t~ret42; 46#L419true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 50#L419-1true [2020-11-30 00:22:54,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:54,803 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 00:22:54,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:54,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086466037] [2020-11-30 00:22:54,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:55,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:55,235 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:55,289 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:22:55,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:55,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1671401907, now seen corresponding path program 1 times [2020-11-30 00:22:55,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:55,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402588612] [2020-11-30 00:22:55,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:55,306 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:55,319 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:55,328 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:22:55,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:55,334 INFO L82 PathProgramCache]: Analyzing trace with hash 42877031, now seen corresponding path program 1 times [2020-11-30 00:22:55,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:55,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423181326] [2020-11-30 00:22:55,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:55,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:22:55,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423181326] [2020-11-30 00:22:55,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:55,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:22:55,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694316847] [2020-11-30 00:22:55,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:55,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:22:55,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:22:55,621 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 6 states. [2020-11-30 00:22:56,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:56,004 INFO L93 Difference]: Finished difference Result 264 states and 378 transitions. [2020-11-30 00:22:56,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:22:56,007 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 264 states and 378 transitions. [2020-11-30 00:22:56,022 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 169 [2020-11-30 00:22:56,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 264 states to 243 states and 357 transitions. [2020-11-30 00:22:56,041 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2020-11-30 00:22:56,043 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 243 [2020-11-30 00:22:56,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 243 states and 357 transitions. [2020-11-30 00:22:56,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:22:56,050 INFO L691 BuchiCegarLoop]: Abstraction has 243 states and 357 transitions. [2020-11-30 00:22:56,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states and 357 transitions. [2020-11-30 00:22:56,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 144. [2020-11-30 00:22:56,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-11-30 00:22:56,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 210 transitions. [2020-11-30 00:22:56,095 INFO L714 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2020-11-30 00:22:56,096 INFO L594 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2020-11-30 00:22:56,096 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:22:56,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 210 transitions. [2020-11-30 00:22:56,099 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2020-11-30 00:22:56,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:22:56,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:22:56,100 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:22:56,100 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:22:56,101 INFO L794 eck$LassoCheckResult]: Stem: 486#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.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(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 405#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 406#L837 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 482#L845 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 395#L932 assume 0 != main_~tmp~8; 396#L909 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 465#L419-1 [2020-11-30 00:22:56,101 INFO L796 eck$LassoCheckResult]: Loop: 465#L419-1 assume !false; 448#L560 assume test_~splverifierCounter~0 < 4; 449#L561 test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 489#L569 assume !(0 != test_~tmp~4); 492#L569-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 450#L579 assume !(0 != test_~tmp___0~1); 451#L579-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 453#L589 assume 0 != test_~tmp___2~0; 478#L595-1 assume !(0 != ~pumpRunning~0); 443#L626 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 423#L684 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 425#L658-1 assume !(0 == ~pumpRunning~0); 429#L633 havoc __utac_acc__Specification1_spec__1_#t~ret42, __utac_acc__Specification1_spec__1_#t~ret43, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 483#L495-1 __utac_acc__Specification1_spec__1_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret42;havoc __utac_acc__Specification1_spec__1_#t~ret42; 464#L419 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 465#L419-1 [2020-11-30 00:22:56,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:56,102 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 00:22:56,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:56,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881978495] [2020-11-30 00:22:56,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:56,146 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:56,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:56,202 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:22:56,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:56,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1955219780, now seen corresponding path program 1 times [2020-11-30 00:22:56,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:56,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335899055] [2020-11-30 00:22:56,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:56,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:22:56,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335899055] [2020-11-30 00:22:56,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:22:56,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:22:56,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127897502] [2020-11-30 00:22:56,219 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:22:56,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:22:56,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:22:56,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:22:56,220 INFO L87 Difference]: Start difference. First operand 144 states and 210 transitions. cyclomatic complexity: 69 Second operand 3 states. [2020-11-30 00:22:56,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:22:56,343 INFO L93 Difference]: Finished difference Result 183 states and 250 transitions. [2020-11-30 00:22:56,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:22:56,344 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 250 transitions. [2020-11-30 00:22:56,347 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2020-11-30 00:22:56,350 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 183 states and 250 transitions. [2020-11-30 00:22:56,350 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2020-11-30 00:22:56,350 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2020-11-30 00:22:56,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 250 transitions. [2020-11-30 00:22:56,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:22:56,352 INFO L691 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2020-11-30 00:22:56,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 250 transitions. [2020-11-30 00:22:56,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2020-11-30 00:22:56,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-11-30 00:22:56,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 250 transitions. [2020-11-30 00:22:56,368 INFO L714 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2020-11-30 00:22:56,368 INFO L594 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2020-11-30 00:22:56,369 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:22:56,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 250 transitions. [2020-11-30 00:22:56,371 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2020-11-30 00:22:56,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:22:56,371 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:22:56,372 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:22:56,372 INFO L853 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] [2020-11-30 00:22:56,372 INFO L794 eck$LassoCheckResult]: Stem: 830#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.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(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 738#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 739#L837 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 824#L845 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 728#L932 assume 0 != main_~tmp~8; 729#L909 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 806#L419-1 [2020-11-30 00:22:56,373 INFO L796 eck$LassoCheckResult]: Loop: 806#L419-1 assume !false; 784#L560 assume test_~splverifierCounter~0 < 4; 785#L561 test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 837#L569 assume !(0 != test_~tmp~4); 909#L569-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 788#L579 assume !(0 != test_~tmp___0~1); 789#L579-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 791#L589 assume 0 != test_~tmp___2~0; 819#L595-1 assume !(0 != ~pumpRunning~0); 854#L626 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 758#L684 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 759#L658-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret77, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 794#L535-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 795#L540-1 isHighWaterLevel_#t~ret77 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret77;havoc isHighWaterLevel_#t~ret77; 751#L786-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 730#L786-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 731#L792-1 processEnvironment__wrappee__highWaterSensor_#t~ret58 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret58;havoc processEnvironment__wrappee__highWaterSensor_#t~ret58; 767#L662-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 764#L633 havoc __utac_acc__Specification1_spec__1_#t~ret42, __utac_acc__Specification1_spec__1_#t~ret43, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 904#L495-1 __utac_acc__Specification1_spec__1_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret42;havoc __utac_acc__Specification1_spec__1_#t~ret42; 902#L419 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 806#L419-1 [2020-11-30 00:22:56,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:56,373 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 00:22:56,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:56,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427623417] [2020-11-30 00:22:56,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:56,411 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:56,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:56,484 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:22:56,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:56,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1592970096, now seen corresponding path program 1 times [2020-11-30 00:22:56,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:56,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502769959] [2020-11-30 00:22:56,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:56,500 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:56,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:56,513 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:22:56,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:56,514 INFO L82 PathProgramCache]: Analyzing trace with hash 2049041290, now seen corresponding path program 1 times [2020-11-30 00:22:56,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:56,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45603341] [2020-11-30 00:22:56,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:56,575 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:56,606 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:56,621 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:22:56,760 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-30 00:24:06,144 WARN L193 SmtUtils]: Spent 1.16 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 00:25:02,413 WARN L193 SmtUtils]: Spent 56.26 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 00:25:02,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:25:02 BoogieIcfgContainer [2020-11-30 00:25:02,767 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:25:02,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:25:02,768 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:25:02,768 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:25:02,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:22:54" (3/4) ... [2020-11-30 00:25:02,771 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:25:02,819 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_06cf78d7-1045-47f2-8e53-c7519f88a156/bin/uautomizer/witness.graphml [2020-11-30 00:25:02,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:25:02,821 INFO L168 Benchmark]: Toolchain (without parser) took 129857.54 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 56.8 MB in the beginning and 95.4 MB in the end (delta: -38.6 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:25:02,822 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory was 64.5 MB in the beginning and 64.5 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:25:02,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 520.77 ms. Allocated memory is still 90.2 MB. Free memory was 56.6 MB in the beginning and 57.5 MB in the end (delta: -858.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:25:02,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.26 ms. Allocated memory is still 90.2 MB. Free memory was 57.5 MB in the beginning and 54.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:25:02,824 INFO L168 Benchmark]: Boogie Preprocessor took 45.65 ms. Allocated memory is still 90.2 MB. Free memory was 54.0 MB in the beginning and 51.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:25:02,824 INFO L168 Benchmark]: RCFGBuilder took 1024.42 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 51.2 MB in the beginning and 40.8 MB in the end (delta: 10.4 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:25:02,825 INFO L168 Benchmark]: BuchiAutomizer took 128133.22 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 40.8 MB in the beginning and 97.5 MB in the end (delta: -56.7 MB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:25:02,826 INFO L168 Benchmark]: Witness Printer took 51.75 ms. Allocated memory is still 134.2 MB. Free memory was 97.5 MB in the beginning and 95.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:25:02,829 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory was 64.5 MB in the beginning and 64.5 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 520.77 ms. Allocated memory is still 90.2 MB. Free memory was 56.6 MB in the beginning and 57.5 MB in the end (delta: -858.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.26 ms. Allocated memory is still 90.2 MB. Free memory was 57.5 MB in the beginning and 54.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.65 ms. Allocated memory is still 90.2 MB. Free memory was 54.0 MB in the beginning and 51.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1024.42 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 51.2 MB in the beginning and 40.8 MB in the end (delta: 10.4 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 128133.22 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 40.8 MB in the beginning and 97.5 MB in the end (delta: -56.7 MB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. * Witness Printer took 51.75 ms. Allocated memory is still 134.2 MB. Free memory was 97.5 MB in the beginning and 95.4 MB in the end (delta: 2.1 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 183 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 128.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 127.3s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 99 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 183 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 303 SDtfs, 706 SDslu, 752 SDs, 0 SdLazy, 73 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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: 559]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=22378} State at position 1 is {NULL=0, NULL=0, NULL=22378, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16b0c83c=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3816dc9c=0, NULL=22382, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1817f2c2=0, retValue_acc=1, tmp=0, NULL=0, retValue_acc=0, NULL=22400, tmp___1=0, NULL=22380, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@981065e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26fef447=0, NULL=0, NULL=22396, NULL=22389, cleanupTimeShifts=4, NULL=22403, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=22395, NULL=0, NULL=0, NULL=0, tmp=0, tmp=1, NULL=0, \result=1, NULL=0, NULL=0, NULL=0, tmp=1, NULL=22393, tmp___0=0, NULL=22388, NULL=22398, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f4241c1=0, head=0, NULL=0, NULL=0, tmp=0, NULL=22390, NULL=0, NULL=0, NULL=22383, NULL=0, NULL=0, NULL=22402, NULL=22397, NULL=22401, tmp___0=0, NULL=0, NULL=0, tmp___0=0, NULL=22406, NULL=22405, NULL=22387, tmp=0, NULL=22381, NULL=0, NULL=0, NULL=0, systemActive=1, retValue_acc=0, \result=0, NULL=22404, retValue_acc=0, NULL=0, NULL=22379, NULL=22394, \result=0, NULL=22384, NULL=0, NULL=22392, NULL=22385, tmp___2=60, splverifierCounter=0, NULL=0, \result=0, NULL=22386, NULL=22399, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ad85267=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34b3afc8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e0aed8=60, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35749002=0, NULL=22391} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L452] int waterLevel = 1; [L453] int methaneLevelCritical = 0; [L619] int pumpRunning = 0; [L620] int systemActive = 1; [L850] int cleanupTimeShifts = 4; [L923] int retValue_acc ; [L924] int tmp ; [L841] int retValue_acc ; [L844] retValue_acc = 1 [L845] return (retValue_acc); [L930] tmp = valid_product() [L932] COND TRUE \read(tmp) [L550] int splverifierCounter ; [L551] int tmp ; [L552] int tmp___0 ; [L553] int tmp___1 ; [L554] int tmp___2 ; [L557] splverifierCounter = 0 Loop: [L559] COND TRUE 1 [L561] COND TRUE splverifierCounter < 4 [L567] tmp = __VERIFIER_nondet_int() [L569] COND FALSE !(\read(tmp)) [L577] tmp___0 = __VERIFIER_nondet_int() [L579] COND FALSE !(\read(tmp___0)) [L587] tmp___2 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___2) [L626] COND FALSE !(\read(pumpRunning)) [L633] COND TRUE \read(systemActive) [L681] int tmp ; [L684] COND FALSE !(\read(pumpRunning)) [L655] int tmp ; [L658] COND TRUE ! pumpRunning [L778] int retValue_acc ; [L779] int tmp ; [L780] int tmp___0 ; [L532] int retValue_acc ; [L535] COND TRUE waterLevel < 2 [L536] retValue_acc = 1 [L537] return (retValue_acc); [L784] tmp = isHighWaterSensorDry() [L786] COND TRUE \read(tmp) [L787] tmp___0 = 0 [L791] retValue_acc = tmp___0 [L792] return (retValue_acc); [L660] tmp = isHighWaterLevel() [L662] COND FALSE !(\read(tmp)) [L412] int tmp ; [L413] int tmp___0 ; [L491] int retValue_acc ; [L494] retValue_acc = methaneLevelCritical [L495] return (retValue_acc); [L417] tmp = isMethaneLevelCritical() [L419] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...