./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product15.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_15b0bbeb-f108-4991-a873-b91b714ebb3c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_15b0bbeb-f108-4991-a873-b91b714ebb3c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_15b0bbeb-f108-4991-a873-b91b714ebb3c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_15b0bbeb-f108-4991-a873-b91b714ebb3c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_15b0bbeb-f108-4991-a873-b91b714ebb3c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_15b0bbeb-f108-4991-a873-b91b714ebb3c/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 10f6db361160ad683c5ff0095ebb60e0648efb18 ................................................................................................................................................................................................................................................................................................................................................................................ 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 [2020-11-29 23:55:25,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:55:25,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:55:25,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:55:25,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:55:25,609 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:55:25,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:55:25,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:55:25,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:55:25,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:55:25,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:55:25,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:55:25,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:55:25,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:55:25,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:55:25,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:55:25,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:55:25,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:55:25,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:55:25,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:55:25,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:55:25,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:55:25,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:55:25,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:55:25,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:55:25,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:55:25,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:55:25,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:55:25,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:55:25,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:55:25,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:55:25,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:55:25,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:55:25,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:55:25,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:55:25,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:55:25,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:55:25,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:55:25,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:55:25,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:55:25,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:55:25,653 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_15b0bbeb-f108-4991-a873-b91b714ebb3c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:55:25,677 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:55:25,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:55:25,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:55:25,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:55:25,680 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:55:25,680 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:55:25,680 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:55:25,680 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:55:25,681 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:55:25,681 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:55:25,681 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:55:25,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:55:25,682 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:55:25,682 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:55:25,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:55:25,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:55:25,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:55:25,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:55:25,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:55:25,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:55:25,684 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:55:25,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:55:25,685 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:55:25,685 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:55:25,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:55:25,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:55:25,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:55:25,686 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:55:25,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:55:25,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:55:25,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:55:25,688 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:55:25,689 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:55:25,689 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_15b0bbeb-f108-4991-a873-b91b714ebb3c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_15b0bbeb-f108-4991-a873-b91b714ebb3c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10f6db361160ad683c5ff0095ebb60e0648efb18 [2020-11-29 23:55:25,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:55:25,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:55:25,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:55:25,948 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:55:25,956 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:55:25,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_15b0bbeb-f108-4991-a873-b91b714ebb3c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c [2020-11-29 23:55:26,043 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_15b0bbeb-f108-4991-a873-b91b714ebb3c/bin/uautomizer/data/d1130b9c3/7c7a7e6f0cb64a9ebf7463621d0a3e9a/FLAGfdd621552 [2020-11-29 23:55:26,578 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:55:26,581 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_15b0bbeb-f108-4991-a873-b91b714ebb3c/sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c [2020-11-29 23:55:26,601 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_15b0bbeb-f108-4991-a873-b91b714ebb3c/bin/uautomizer/data/d1130b9c3/7c7a7e6f0cb64a9ebf7463621d0a3e9a/FLAGfdd621552 [2020-11-29 23:55:26,917 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_15b0bbeb-f108-4991-a873-b91b714ebb3c/bin/uautomizer/data/d1130b9c3/7c7a7e6f0cb64a9ebf7463621d0a3e9a [2020-11-29 23:55:26,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:55:26,920 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:55:26,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:26,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:55:26,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:55:26,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68fcc5ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26, skipping insertion in model container [2020-11-29 23:55:26,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:55:27,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:55:27,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:27,341 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:55:27,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:27,499 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:55:27,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:27 WrapperNode [2020-11-29 23:55:27,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:27,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:27,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:55:27,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:55:27,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:27" (1/1) ... [2020-11-29 23:55:27,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:27" (1/1) ... [2020-11-29 23:55:27,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:27,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:55:27,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:55:27,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:55:27,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:27" (1/1) ... [2020-11-29 23:55:27,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:27" (1/1) ... [2020-11-29 23:55:27,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:27" (1/1) ... [2020-11-29 23:55:27,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:27" (1/1) ... [2020-11-29 23:55:27,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:27" (1/1) ... [2020-11-29 23:55:27,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:27" (1/1) ... [2020-11-29 23:55:27,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:27" (1/1) ... [2020-11-29 23:55:27,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:55:27,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:55:27,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:55:27,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:55:27,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_15b0bbeb-f108-4991-a873-b91b714ebb3c/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 [2020-11-29 23:55:27,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:55:27,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:55:27,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:55:27,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:55:28,681 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:55:28,681 INFO L298 CfgBuilder]: Removed 106 assume(true) statements. [2020-11-29 23:55:28,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:28 BoogieIcfgContainer [2020-11-29 23:55:28,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:55:28,710 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:55:28,710 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:55:28,721 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:55:28,751 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:55:28,752 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:55:26" (1/3) ... [2020-11-29 23:55:28,753 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51241499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:55:28, skipping insertion in model container [2020-11-29 23:55:28,754 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:55:28,754 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:27" (2/3) ... [2020-11-29 23:55:28,754 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51241499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:55:28, skipping insertion in model container [2020-11-29 23:55:28,754 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:55:28,754 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:28" (3/3) ... [2020-11-29 23:55:28,756 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product15.cil.c [2020-11-29 23:55:28,805 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:55:28,805 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:55:28,806 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:55:28,806 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:55:28,806 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:55:28,806 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:55:28,806 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:55:28,806 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:55:28,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states. [2020-11-29 23:55:28,843 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-29 23:55:28,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:28,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:28,851 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:55:28,851 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:28,852 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:55:28,852 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states. [2020-11-29 23:55:28,857 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-29 23:55:28,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:28,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:28,858 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:55:28,858 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:28,863 INFO L794 eck$LassoCheckResult]: Stem: 43#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 15#L-1true havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 61#L67true 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; 65#L75true main_#t~ret76 := valid_product_#res;main_~tmp~6 := main_#t~ret76;havoc main_#t~ret76; 39#L863true assume 0 != main_~tmp~6; 66#L840true havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 16#L885-1true [2020-11-29 23:55:28,864 INFO L796 eck$LassoCheckResult]: Loop: 16#L885-1true assume !false; 64#L105true assume test_~splverifierCounter~0 < 4; 40#L106true test_~tmp~0 := test_#t~nondet8;havoc test_#t~nondet8; 35#L114true assume !(0 != test_~tmp~0); 32#L114-1true test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 7#L124true assume !(0 != test_~tmp___0~0); 6#L124-1true test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 62#L134true assume 0 != test_~tmp___2~0; 56#L140-1true assume !(0 != ~pumpRunning~0); 31#L176true assume !(0 != ~systemActive~0); 49#L183true havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 44#L776true __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 37#L885true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 16#L885-1true [2020-11-29 23:55:28,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:28,870 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 23:55:28,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:28,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577149081] [2020-11-29 23:55:28,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:29,103 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:29,220 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:29,258 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:29,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:29,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1673310515, now seen corresponding path program 1 times [2020-11-29 23:55:29,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:29,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010005630] [2020-11-29 23:55:29,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:29,268 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:29,273 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:29,279 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:29,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:29,281 INFO L82 PathProgramCache]: Analyzing trace with hash 40968423, now seen corresponding path program 1 times [2020-11-29 23:55:29,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:29,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878597810] [2020-11-29 23:55:29,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:29,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:29,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878597810] [2020-11-29 23:55:29,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:55:29,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:55:29,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952914546] [2020-11-29 23:55:29,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:55:29,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 23:55:29,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:55:29,601 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 6 states. [2020-11-29 23:55:29,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:55:29,927 INFO L93 Difference]: Finished difference Result 180 states and 246 transitions. [2020-11-29 23:55:29,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:55:29,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 246 transitions. [2020-11-29 23:55:29,945 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 113 [2020-11-29 23:55:29,957 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 159 states and 225 transitions. [2020-11-29 23:55:29,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2020-11-29 23:55:29,959 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2020-11-29 23:55:29,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 225 transitions. [2020-11-29 23:55:29,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:55:29,961 INFO L691 BuchiCegarLoop]: Abstraction has 159 states and 225 transitions. [2020-11-29 23:55:29,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 225 transitions. [2020-11-29 23:55:30,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 102. [2020-11-29 23:55:30,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-29 23:55:30,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2020-11-29 23:55:30,022 INFO L714 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2020-11-29 23:55:30,022 INFO L594 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2020-11-29 23:55:30,022 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:55:30,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 144 transitions. [2020-11-29 23:55:30,031 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 72 [2020-11-29 23:55:30,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:30,031 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:30,063 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:55:30,063 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:30,063 INFO L794 eck$LassoCheckResult]: Stem: 317#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 287#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 288#L67 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; 328#L75 main_#t~ret76 := valid_product_#res;main_~tmp~6 := main_#t~ret76;havoc main_#t~ret76; 313#L863 assume 0 != main_~tmp~6; 314#L840 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 289#L885-1 [2020-11-29 23:55:30,065 INFO L796 eck$LassoCheckResult]: Loop: 289#L885-1 assume !false; 290#L105 assume test_~splverifierCounter~0 < 4; 315#L106 test_~tmp~0 := test_#t~nondet8;havoc test_#t~nondet8; 308#L114 assume !(0 != test_~tmp~0); 304#L114-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 279#L124 assume !(0 != test_~tmp___0~0); 277#L124-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 278#L134 assume 0 != test_~tmp___2~0; 323#L140-1 assume !(0 != ~pumpRunning~0); 303#L176 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 274#L208 assume !(0 != ~pumpRunning~0); 276#L183 havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 318#L776 __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 311#L885 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 289#L885-1 [2020-11-29 23:55:30,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:30,066 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 23:55:30,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:30,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998009492] [2020-11-29 23:55:30,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:30,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:30,191 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:30,208 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:30,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:30,208 INFO L82 PathProgramCache]: Analyzing trace with hash -353546755, now seen corresponding path program 1 times [2020-11-29 23:55:30,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:30,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74794179] [2020-11-29 23:55:30,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:30,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:30,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:30,221 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:30,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:30,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1249492771, now seen corresponding path program 1 times [2020-11-29 23:55:30,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:30,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299449647] [2020-11-29 23:55:30,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:30,266 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:30,342 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:30,360 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:56:40,274 WARN L193 SmtUtils]: Spent 1.16 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 23:57:33,029 WARN L193 SmtUtils]: Spent 52.75 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 23:57:33,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:57:33 BoogieIcfgContainer [2020-11-29 23:57:33,446 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:57:33,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:57:33,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:57:33,447 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:57:33,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:28" (3/4) ... [2020-11-29 23:57:33,450 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 23:57:33,501 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_15b0bbeb-f108-4991-a873-b91b714ebb3c/bin/uautomizer/witness.graphml [2020-11-29 23:57:33,501 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:57:33,503 INFO L168 Benchmark]: Toolchain (without parser) took 126581.77 ms. Allocated memory was 94.4 MB in the beginning and 172.0 MB in the end (delta: 77.6 MB). Free memory was 66.4 MB in the beginning and 143.0 MB in the end (delta: -76.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:33,503 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory was 51.9 MB in the beginning and 51.8 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:57:33,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.22 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 66.0 MB in the beginning and 102.3 MB in the end (delta: -36.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:33,505 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.84 ms. Allocated memory is still 134.2 MB. Free memory was 102.3 MB in the beginning and 99.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:33,505 INFO L168 Benchmark]: Boogie Preprocessor took 70.45 ms. Allocated memory is still 134.2 MB. Free memory was 99.4 MB in the beginning and 96.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:33,506 INFO L168 Benchmark]: RCFGBuilder took 1021.26 ms. Allocated memory is still 134.2 MB. Free memory was 96.8 MB in the beginning and 48.4 MB in the end (delta: 48.5 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:33,507 INFO L168 Benchmark]: BuchiAutomizer took 124736.27 ms. Allocated memory was 134.2 MB in the beginning and 172.0 MB in the end (delta: 37.7 MB). Free memory was 111.4 MB in the beginning and 145.1 MB in the end (delta: -33.7 MB). Peak memory consumption was 104.8 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:33,507 INFO L168 Benchmark]: Witness Printer took 54.56 ms. Allocated memory is still 172.0 MB. Free memory was 145.1 MB in the beginning and 143.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:33,511 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 94.4 MB. Free memory was 51.9 MB in the beginning and 51.8 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 568.22 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 66.0 MB in the beginning and 102.3 MB in the end (delta: -36.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.84 ms. Allocated memory is still 134.2 MB. Free memory was 102.3 MB in the beginning and 99.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.45 ms. Allocated memory is still 134.2 MB. Free memory was 99.4 MB in the beginning and 96.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1021.26 ms. Allocated memory is still 134.2 MB. Free memory was 96.8 MB in the beginning and 48.4 MB in the end (delta: 48.5 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 124736.27 ms. Allocated memory was 134.2 MB in the beginning and 172.0 MB in the end (delta: 37.7 MB). Free memory was 111.4 MB in the beginning and 145.1 MB in the end (delta: -33.7 MB). Peak memory consumption was 104.8 MB. Max. memory is 16.1 GB. * Witness Printer took 54.56 ms. Allocated memory is still 172.0 MB. Free memory was 145.1 MB in the beginning and 143.0 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 102 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 124.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 124.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 57 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 102 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 89 SDtfs, 334 SDslu, 497 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 104]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18820} State at position 1 is {NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b31eba5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2966ad19=0, NULL=18820, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a346324=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65533670=0, NULL=22888, NULL=0, NULL=0, NULL=22900, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@230daa82=63, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fb41c19=0, methaneLevelCritical=0, NULL=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=22894, NULL=22901, tmp___0=0, cleanupTimeShifts=4, tmp=0, NULL=22906, NULL=22880, NULL=0, systemActive=1, waterLevel=1, NULL=18821, \result=1, NULL=0, NULL=22898, NULL=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=22897, NULL=0, NULL=0, NULL=22890, \result=1, NULL=22896, head=0, pumpRunning=0, NULL=22889, \result=0, NULL=22887, NULL=0, NULL=0, NULL=0, tmp=1, NULL=22899, NULL=22883, NULL=22895, NULL=0, NULL=22885, retValue_acc=1, NULL=0, NULL=22891, retValue_acc=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1df92aaa=0, tmp___2=63, NULL=0, NULL=22905, NULL=22886, splverifierCounter=0, NULL=0, NULL=0, NULL=22881, NULL=22892, NULL=22882, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@271bfdfd=0, head=0, NULL=0, NULL=0, NULL=22904, NULL=0, NULL=0, NULL=22893, NULL=0, NULL=22903, NULL=22902, NULL=22884} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L503] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L701] int waterLevel = 1; [L702] int methaneLevelCritical = 0; [L781] int cleanupTimeShifts = 4; [L854] int retValue_acc ; [L855] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L861] tmp = valid_product() [L863] COND TRUE \read(tmp) [L95] int splverifierCounter ; [L96] int tmp ; [L97] int tmp___0 ; [L98] int tmp___1 ; [L99] int tmp___2 ; [L102] splverifierCounter = 0 Loop: [L104] COND TRUE 1 [L106] COND TRUE splverifierCounter < 4 [L112] tmp = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp)) [L122] tmp___0 = __VERIFIER_nondet_int() [L124] COND FALSE !(\read(tmp___0)) [L132] tmp___2 = __VERIFIER_nondet_int() [L134] COND TRUE \read(tmp___2) [L176] COND FALSE !(\read(pumpRunning)) [L183] COND TRUE \read(systemActive) [L205] int tmp ; [L208] COND FALSE !(\read(pumpRunning)) [L878] int tmp ; [L879] int tmp___0 ; [L772] int retValue_acc ; [L775] retValue_acc = waterLevel [L776] return (retValue_acc); [L883] tmp = getWaterLevel() [L885] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...